Podcasts about aj what

New Week. New Episode This week's episode of #WRESTHINGS we discussed: - NJPW G1 Climax Review - Brief history lesson on Inokism and IGF - Importance of the Midgard title in NJPW - Weekly RAW, Smackdown & AEW - Bray and Alexa pairing. Are we invested? - Is it over for Retribution? - Re-Introduction of Jordan Omogbehin to RAW with AJ - What’s next for The Hurt Business? - Titus O’Neill getting beaten up - Week 5 of Lana being Samoan dropped into the table - Drew McIntyre and his ‘Scissors’ - Jey vs Roman - Fantasy booking of Jacob Fatu vs Roman Reigns - GOLDBERGGGGGGGGGGGG - Delboy vs Mark Jindrak - Will we get a match? - ‘Was it really that good?’ - None this week And we answer your questions ! #ASKWRESTHINGS #WRESTHINGS
#BYTHEMANDEMFORTHEMANDEM

In today's episode, we'll be talking all about how to step up your inner game of success. I've invited Jill Stanton to come onto the show and share how her inner game became a huge key with her and her husband in unlocking the next level of success in their own lives and in their own business. Jill and her husband own a business called "Screw the Nine to Five", they created this business to show others how they were making money from over 30 online businesses while living overseas. And since 2011, they've gone on to create a business that generates high six figures. They're on a mission to inspire others to always live life on their terms, no matter the circumstance. What You'll Hear In This Episode A brief rundown of what Jill and her husband are working on right now. Where does Jill get her motivation in helping entrepreneurs shift to the empowered version of themselves? What was the experience that served as a catalyst for change that opened Jill's consciousness? What led Jill and her husband to shut their business down in 2018? In dealing with disempowering thoughts, how do Jill's catch and cancel technique works? What are the 3 big mistakes that personal brands are making in terms of scaling their business? Why does Jill think that people are in a great awakening right now? "Sometimes the most conscious thing to do is punch somebody in the face." - AJ How did Jill's fear of judgment dim her life for many years? How is your level of awareness not just your responsibility but also your response-ability? How did Jill compare her old C-player self to her A-player self today? What people think of you doesn't matter, why does Jill say so? "If you study consciousness at a deep level, to the degree that we're willing to accept our death is to the degree that we're willing to actually live our life." -AJ What must be done if we want to have genuine full freedom? What's Jill's current marketing strategy and how is it helping her business? Why does Jill say that it all stems from awareness to be able to step up to any level of transformation or success? "You can't change what you don't acknowledge." As Jill mentioned, what's the first baby step that you can take to help people create success? How being comfortable trips a lot of entrepreneurs? What is Project Shift's "Couch to Castle" concept? What's the one-line advice that Jill will tell her younger self? Links Mentioned In This Episode https://www.screwtheninetofive.com/ https://www.screwtheninetofive.com/bootcamp http://thescrewshow.com/ @screwtheninetofive trainingwithaj.com @ajamyx

We’re at FOSDEM 2019 this week having fun. We’d never leave you in a lurch, so we have recorded an interview with Niclas Zeising of the FreeBSD graphics team for you. Enjoy. ##Interview - Niclas Zeising - zeising@FreeBSD.org / @niclaszeising Interview topic: FreeBSD Graphics Stack BR: Welcome Niclas. Since this is your first time on BSDNow, can you tell us a bit about yourself and how you started with Unix/BSD? AJ: What made you start working in the FreeBSD graphics stack? BR: What is the current status with the FreeBSD graphics stack? AJ: What challenges do you face in the FreeBSD graphics stack? BR: How many people are working in the graphics team and what kind of help do you need there? AJ: You’re also involved in FreeBSD ports and held a poudriere tutorial at last years EuroBSDcon. What kind of feedback did you get and will you give that tutorial again? BR: You’ve been organizing the Stockholm BSD user group meeting. Can you tell us a bit about that, what’s involved, how is it structured? AJ: What conferences do you go to where people could talk to you? BR: Is there anything else you’d like to mention before we let you go? ##Feedback/Questions Casey - TrueOS Troels - zfs send vs zfs send -R matclarke - Orphaned packages Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

Artie Buco is back perfecting the cringe well before The Office was a hit. The continued misadventures of Artie Buco play out in this episode while Tony is reeling from some news he got about Gloria Trillo and AJ, well, AJ is just being AJ What’s your opinion? Email us at showswhatyouknowshow@gmail.com or tweet @showswhatuknow....

Artie Buco is back perfecting the cringe well before The Office was a hit. The continued misadventures of Artie Buco play out in this episode while Tony is reeling from some news he got about Gloria Trillo and AJ, well, AJ is just being AJ What’s your opinion? Email us at showswhatyouknowshow@gmail.com or tweet @showswhatuknow....

We have a long interview with fiction and non-fiction author Michael W. Lucas for you this week as well as questions from the audience. ##Headlines Interview - Michael W. Lucas - mwlucas@michaelwlucas.com / @mwlauthor BR: [Welcome Back] AJ: What have you been doing since last we talked to you [ed, ssh, and af3e] BR: Tell us more about AF3e AJ: How did the first Absolute FreeBSD come about? BR: Do you have anything special planned for MeetBSD? AJ: What are you working on now? [FM:Jails, Git sync Murder] BR: What are your plans for next year? AJ: How has SEMIBug been going? Auction at https://mwl.io Patreon Link: ##Feedback/Questions Paul - Recent bhyve related videos (daemon) Michael - freebsd-update question Sigflup - pkg file search Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

Panel: AJ O’Neal Aimee Knight Joe Eames Special Guests: Nader Dabit In this episode, the panel talks with programmer, Nader Dabit, who has been with Amazon’s AWS for the past six months. They discuss the new innovations that Amazon is currently working on, and the exciting new projects that Nader gets to be involved with. Check out this episode to hear all the latest! Show Topics: 1:45 – There are two main things that Nader works with. Check out this timestamp to see what they are. 3:29 – AJ to Nader: Tell me more about manage cloud. I am not sure about Cognito. 3:56 – Yes, Cognito is used by/through Amazon. 5:06 – What are the other manage cloud services that companies want to offer through the tools you have? 5:12 – Nader answers AJ’s question. 7:30 – Can you give me more specifics on the storage solutions you are offering? 8:03 – Nader answers AJ’s question. People store websites there for example. Frontend developers are using S3 buckets, and they are using the library, which is a storage solution. 9:10 – AJ and Nader are having a dialogue between different situations, and Nader is giving the solutions to those hypothetical situations. 10:17 – AJ: “I am interested in what you are talking about AppSync. Can you tell me how that works?” AJ is picking Nader’s brain about how AppSync works. 11:05 – Nader: “It is a single API layer for a point of entry. You can have multi-data sources.” Nader continues, in detail, answering AJ’s question. 12:36 – AJ: As a frontend developer, it sounds like I will have to become familiar with the backend, too. How is it providing the most value? What is it that I do not have to touch, because I am using this? 15:37 – How would these relations work? As a frontend developer, and I do not want to learn sequel, how would that might look like; currently or in the future? How do you extract that knowledge? 16:18 – Yes, it is not an easy solution to solve. Nader goes into detail about how he would approach this situation. 18:26 – AJ: Are these resolvers written in JavaScript? 22:04 – Acronym fun! 22:45 – Node 23:51 – Summarizing these pasts 20-some-minutes: Off-Storage, AppSync, Landis, and others are what people are using Amplify for. New Question/New Topic: Simplify. 25:45 – AWS MOBILE – is not mobile specific. 26:44 – If you are using Angular, we have a plugin in Angular to help you. We also have that for React and Vue as well. 27:52 – Advertisement 28:56 – What should we be talking about? 29:04 – Let’s talk about Amazon’s Lex, Chat Bot. Nader goes into full detail of this service. 33:52 – Apple T.V. 34:00 – AJ: Sounds like this is more platform/ more agnostic than getting different things to come together, and the Microsoft one is more hybrid and the Amazon one is more open? 35:13 – Joe, let’s go back to what you had to ask. 35:28 – Nader, you talked about PUSH notifications earlier. What is Pub/Sub? 36:30 – Is this like traditional hooks? Or custom? 37:25 – What is the “stuff” that gets you up in the morning and gets you excited to go to work at AWS? 38:40 – Nader: I really had no desire to change career paths, but it happened. 41:30 – AJ: I totally agree with the idea in that finding the common patterns, so that way someone on the lower-level can participate. AJ wants a platform that is open or purchase that can offer some of these benefits. It could be open-source or you used to buy the different tools. 43:27 AJ: What about for the hobbyist? 43:40 – Nader: I agree, that would be really nice. I can’t think of any free services that would be nice. 44:03 AJ – Not free in “free,” but “free” towards the idea of “free speech.” They would all be available and you get to choose what works well for you. 45:00 – SHOUTOUT to LISTENERS: Have an idea about this? Shoot the panel an e-mail! 45:33 – Hopefully this opens the listeners’ eyes to what’s out there. 45:48 – Cloud services. 46:55 – Innovation follows niche markets. When something gets big and established, innovation comes to a plateau. The innovation will develop in a new economic area like hydraulics. AJ thinks a niche will develop. 49:03 – Is there anything, Dabit, which you would like to talk about? 49:15 – Can we talk about AI as a service? 51:10 – Nader saw a demonstration recently. 52:26 – Hearing these implications is so cool, but when it comes to ML a panelist dabbled a little bit. He watched some videos, unless you want to devote a year or two to learning it then it’s too complex to put together. Do you have to be genius-level to get through? 53:29 – ML you are passing data. Nader is not quite sure. 56:00 Nader just did a blog post  check-it-out! 56:49 – Let’s do Picks! 56:50 – Advertisement Links: Nader Dabit’s Twitter Nader Dabit’s Medium Nader Dabit’s LinkedIn Nader Dabit’s GitHub Nader Dabit’s Website Nader Dabit’s YouTube channel Nader Dabit’s Egg Head JavaScript Amazon’s Cognito AWS AppSyncNode Landis AWS Mobile Vue Angular Amazon’s Lex – Chat Bot Apple T.V. Push Notifications Pub/Sub AWS’ Artificial Intelligence (AI) Sponsors: Kendo UI Sentry Digital Ocean Picks: AJ O’Neal Blog / Thoughty 2’s Video: Pop Music The Innovator’s Solution / Book The Innovator’s Dilemma / Book Joe Eames Framework Summit - Tickets are still available! Movie: Equalizer 2 Nader Dabit Finland – Graph Talks Conference, October AWS – San Francisco - LOFT

Panel: AJ O’Neal Aimee Knight Joe Eames Special Guests: Nader Dabit In this episode, the panel talks with programmer, Nader Dabit, who has been with Amazon’s AWS for the past six months. They discuss the new innovations that Amazon is currently working on, and the exciting new projects that Nader gets to be involved with. Check out this episode to hear all the latest! Show Topics: 1:45 – There are two main things that Nader works with. Check out this timestamp to see what they are. 3:29 – AJ to Nader: Tell me more about manage cloud. I am not sure about Cognito. 3:56 – Yes, Cognito is used by/through Amazon. 5:06 – What are the other manage cloud services that companies want to offer through the tools you have? 5:12 – Nader answers AJ’s question. 7:30 – Can you give me more specifics on the storage solutions you are offering? 8:03 – Nader answers AJ’s question. People store websites there for example. Frontend developers are using S3 buckets, and they are using the library, which is a storage solution. 9:10 – AJ and Nader are having a dialogue between different situations, and Nader is giving the solutions to those hypothetical situations. 10:17 – AJ: “I am interested in what you are talking about AppSync. Can you tell me how that works?” AJ is picking Nader’s brain about how AppSync works. 11:05 – Nader: “It is a single API layer for a point of entry. You can have multi-data sources.” Nader continues, in detail, answering AJ’s question. 12:36 – AJ: As a frontend developer, it sounds like I will have to become familiar with the backend, too. How is it providing the most value? What is it that I do not have to touch, because I am using this? 15:37 – How would these relations work? As a frontend developer, and I do not want to learn sequel, how would that might look like; currently or in the future? How do you extract that knowledge? 16:18 – Yes, it is not an easy solution to solve. Nader goes into detail about how he would approach this situation. 18:26 – AJ: Are these resolvers written in JavaScript? 22:04 – Acronym fun! 22:45 – Node 23:51 – Summarizing these pasts 20-some-minutes: Off-Storage, AppSync, Landis, and others are what people are using Amplify for. New Question/New Topic: Simplify. 25:45 – AWS MOBILE – is not mobile specific. 26:44 – If you are using Angular, we have a plugin in Angular to help you. We also have that for React and Vue as well. 27:52 – Advertisement 28:56 – What should we be talking about? 29:04 – Let’s talk about Amazon’s Lex, Chat Bot. Nader goes into full detail of this service. 33:52 – Apple T.V. 34:00 – AJ: Sounds like this is more platform/ more agnostic than getting different things to come together, and the Microsoft one is more hybrid and the Amazon one is more open? 35:13 – Joe, let’s go back to what you had to ask. 35:28 – Nader, you talked about PUSH notifications earlier. What is Pub/Sub? 36:30 – Is this like traditional hooks? Or custom? 37:25 – What is the “stuff” that gets you up in the morning and gets you excited to go to work at AWS? 38:40 – Nader: I really had no desire to change career paths, but it happened. 41:30 – AJ: I totally agree with the idea in that finding the common patterns, so that way someone on the lower-level can participate. AJ wants a platform that is open or purchase that can offer some of these benefits. It could be open-source or you used to buy the different tools. 43:27 AJ: What about for the hobbyist? 43:40 – Nader: I agree, that would be really nice. I can’t think of any free services that would be nice. 44:03 AJ – Not free in “free,” but “free” towards the idea of “free speech.” They would all be available and you get to choose what works well for you. 45:00 – SHOUTOUT to LISTENERS: Have an idea about this? Shoot the panel an e-mail! 45:33 – Hopefully this opens the listeners’ eyes to what’s out there. 45:48 – Cloud services. 46:55 – Innovation follows niche markets. When something gets big and established, innovation comes to a plateau. The innovation will develop in a new economic area like hydraulics. AJ thinks a niche will develop. 49:03 – Is there anything, Dabit, which you would like to talk about? 49:15 – Can we talk about AI as a service? 51:10 – Nader saw a demonstration recently. 52:26 – Hearing these implications is so cool, but when it comes to ML a panelist dabbled a little bit. He watched some videos, unless you want to devote a year or two to learning it then it’s too complex to put together. Do you have to be genius-level to get through? 53:29 – ML you are passing data. Nader is not quite sure. 56:00 Nader just did a blog post  check-it-out! 56:49 – Let’s do Picks! 56:50 – Advertisement Links: Nader Dabit’s Twitter Nader Dabit’s Medium Nader Dabit’s LinkedIn Nader Dabit’s GitHub Nader Dabit’s Website Nader Dabit’s YouTube channel Nader Dabit’s Egg Head JavaScript Amazon’s Cognito AWS AppSyncNode Landis AWS Mobile Vue Angular Amazon’s Lex – Chat Bot Apple T.V. Push Notifications Pub/Sub AWS’ Artificial Intelligence (AI) Sponsors: Kendo UI Sentry Digital Ocean Picks: AJ O’Neal Blog / Thoughty 2’s Video: Pop Music The Innovator’s Solution / Book The Innovator’s Dilemma / Book Joe Eames Framework Summit - Tickets are still available! Movie: Equalizer 2 Nader Dabit Finland – Graph Talks Conference, October AWS – San Francisco - LOFT

Panel: AJ O’Neal Aimee Knight Joe Eames Special Guests: Nader Dabit In this episode, the panel talks with programmer, Nader Dabit, who has been with Amazon’s AWS for the past six months. They discuss the new innovations that Amazon is currently working on, and the exciting new projects that Nader gets to be involved with. Check out this episode to hear all the latest! Show Topics: 1:45 – There are two main things that Nader works with. Check out this timestamp to see what they are. 3:29 – AJ to Nader: Tell me more about manage cloud. I am not sure about Cognito. 3:56 – Yes, Cognito is used by/through Amazon. 5:06 – What are the other manage cloud services that companies want to offer through the tools you have? 5:12 – Nader answers AJ’s question. 7:30 – Can you give me more specifics on the storage solutions you are offering? 8:03 – Nader answers AJ’s question. People store websites there for example. Frontend developers are using S3 buckets, and they are using the library, which is a storage solution. 9:10 – AJ and Nader are having a dialogue between different situations, and Nader is giving the solutions to those hypothetical situations. 10:17 – AJ: “I am interested in what you are talking about AppSync. Can you tell me how that works?” AJ is picking Nader’s brain about how AppSync works. 11:05 – Nader: “It is a single API layer for a point of entry. You can have multi-data sources.” Nader continues, in detail, answering AJ’s question. 12:36 – AJ: As a frontend developer, it sounds like I will have to become familiar with the backend, too. How is it providing the most value? What is it that I do not have to touch, because I am using this? 15:37 – How would these relations work? As a frontend developer, and I do not want to learn sequel, how would that might look like; currently or in the future? How do you extract that knowledge? 16:18 – Yes, it is not an easy solution to solve. Nader goes into detail about how he would approach this situation. 18:26 – AJ: Are these resolvers written in JavaScript? 22:04 – Acronym fun! 22:45 – Node 23:51 – Summarizing these pasts 20-some-minutes: Off-Storage, AppSync, Landis, and others are what people are using Amplify for. New Question/New Topic: Simplify. 25:45 – AWS MOBILE – is not mobile specific. 26:44 – If you are using Angular, we have a plugin in Angular to help you. We also have that for React and Vue as well. 27:52 – Advertisement 28:56 – What should we be talking about? 29:04 – Let’s talk about Amazon’s Lex, Chat Bot. Nader goes into full detail of this service. 33:52 – Apple T.V. 34:00 – AJ: Sounds like this is more platform/ more agnostic than getting different things to come together, and the Microsoft one is more hybrid and the Amazon one is more open? 35:13 – Joe, let’s go back to what you had to ask. 35:28 – Nader, you talked about PUSH notifications earlier. What is Pub/Sub? 36:30 – Is this like traditional hooks? Or custom? 37:25 – What is the “stuff” that gets you up in the morning and gets you excited to go to work at AWS? 38:40 – Nader: I really had no desire to change career paths, but it happened. 41:30 – AJ: I totally agree with the idea in that finding the common patterns, so that way someone on the lower-level can participate. AJ wants a platform that is open or purchase that can offer some of these benefits. It could be open-source or you used to buy the different tools. 43:27 AJ: What about for the hobbyist? 43:40 – Nader: I agree, that would be really nice. I can’t think of any free services that would be nice. 44:03 AJ – Not free in “free,” but “free” towards the idea of “free speech.” They would all be available and you get to choose what works well for you. 45:00 – SHOUTOUT to LISTENERS: Have an idea about this? Shoot the panel an e-mail! 45:33 – Hopefully this opens the listeners’ eyes to what’s out there. 45:48 – Cloud services. 46:55 – Innovation follows niche markets. When something gets big and established, innovation comes to a plateau. The innovation will develop in a new economic area like hydraulics. AJ thinks a niche will develop. 49:03 – Is there anything, Dabit, which you would like to talk about? 49:15 – Can we talk about AI as a service? 51:10 – Nader saw a demonstration recently. 52:26 – Hearing these implications is so cool, but when it comes to ML a panelist dabbled a little bit. He watched some videos, unless you want to devote a year or two to learning it then it’s too complex to put together. Do you have to be genius-level to get through? 53:29 – ML you are passing data. Nader is not quite sure. 56:00 Nader just did a blog post  check-it-out! 56:49 – Let’s do Picks! 56:50 – Advertisement Links: Nader Dabit’s Twitter Nader Dabit’s Medium Nader Dabit’s LinkedIn Nader Dabit’s GitHub Nader Dabit’s Website Nader Dabit’s YouTube channel Nader Dabit’s Egg Head JavaScript Amazon’s Cognito AWS AppSyncNode Landis AWS Mobile Vue Angular Amazon’s Lex – Chat Bot Apple T.V. Push Notifications Pub/Sub AWS’ Artificial Intelligence (AI) Sponsors: Kendo UI Sentry Digital Ocean Picks: AJ O’Neal Blog / Thoughty 2’s Video: Pop Music The Innovator’s Solution / Book The Innovator’s Dilemma / Book Joe Eames Framework Summit - Tickets are still available! Movie: Equalizer 2 Nader Dabit Finland – Graph Talks Conference, October AWS – San Francisco - LOFT

DragonflyBSD release 5.2.1 is here, BPF kernel exploit writeup, Remote Debugging the running OpenBSD kernel, interview with Patrick Mooney, FreeBSD buildbot setup in a jail, dumping your USB, and 5 years of gaming on FreeBSD. Headlines DragonFlyBSD: release52 (w/stable HAMMER2, as default root) DragonflyBSD 5.2.1 was released on May 21, 2018 > Big Ticket items: Meltdown and Spectre mitigation support Meltdown isolation and spectre mitigation support added. Meltdown mitigation is automatically enabled for all Intel cpus. Spectre mitigation must be enabled manually via sysctl if desired, using sysctls machdep.spectremitigation and machdep.meltdownmitigation. HAMMER2 H2 has received a very large number of bug fixes and performance improvements. We can now recommend H2 as the default root filesystem in non-clustered mode. Clustered support is not yet available. ipfw Updates Implement state based "redirect", i.e. without using libalias. ipfw now supports all possible ICMP types. Fix ICMPMAXTYPE assumptions (now 40 as of this release). Improved graphics support The drm/i915 kernel driver has been updated to support Intel Coffeelake GPUs Add 24-bit pixel format support to the EFI frame buffer code. Significantly improve fbio support for the "scfb" XOrg driver. This allows EFI frame buffers to be used by X in situations where we do not otherwise support the GPU. Partly implement the FBIOBLANK ioctl for display powersaving. Syscons waits for drm modesetting at appropriate places, avoiding races. PS4 4.55 BPF Race Condition Kernel Exploit Writeup Note: While this bug is primarily interesting for exploitation on the PS4, this bug can also potentially be exploited on other unpatched platforms using FreeBSD if the attacker has read/write permissions on /dev/bpf, or if they want to escalate from root user to kernel code execution. As such, I've published it under the "FreeBSD" folder and not the "PS4" folder. Introduction Welcome to the kernel portion of the PS4 4.55FW full exploit chain write-up. This bug was found by qwerty, and is fairly unique in the way it's exploited, so I wanted to do a detailed write-up on how it worked. The full source of the exploit can be found here. I've previously covered the webkit exploit implementation for userland access here. FreeBSD or Sony's fault? Why not both... Interestingly, this bug is actually a FreeBSD bug and was not (at least directly) introduced by Sony code. While this is a FreeBSD bug however, it's not very useful for most systems because the /dev/bpf device driver is root-owned, and the permissions for it are set to 0600 (meaning owner has read/write privileges, and nobody else does) - though it can be used for escalating from root to kernel mode code execution. However, let’s take a look at the make_dev() call inside the PS4 kernel for /dev/bpf (taken from a 4.05 kernel dump). seg000:FFFFFFFFA181F15B lea rdi, unk_FFFFFFFFA2D77640 seg000:FFFFFFFFA181F162 lea r9, aBpf ; "bpf" seg000:FFFFFFFFA181F169 mov esi, 0 seg000:FFFFFFFFA181F16E mov edx, 0 seg000:FFFFFFFFA181F173 xor ecx, ecx seg000:FFFFFFFFA181F175 mov r8d, 1B6h seg000:FFFFFFFFA181F17B xor eax, eax seg000:FFFFFFFFA181F17D mov cs:qword_FFFFFFFFA34EC770, 0 seg000:FFFFFFFFA181F188 call make_dev We see UID 0 (the UID for the root user) getting moved into the register for the 3rd argument, which is the owner argument. However, the permissions bits are being set to 0x1B6, which in octal is 0666. This means anyone can open /dev/bpf with read/write privileges. I’m not sure why this is the case, qwerty speculates that perhaps bpf is used for LAN gaming. In any case, this was a poor design decision because bpf is usually considered privileged, and should not be accessible to a process that is completely untrusted, such as WebKit. On most platforms, permissions for /dev/bpf will be set to 0x180, or 0600. Race Conditions - What are they? The class of the bug abused in this exploit is known as a "race condition". Before we get into bug specifics, it's important for the reader to understand what race conditions are and how they can be an issue (especially in something like a kernel). Often in complex software (such as a kernel), resources will be shared (or "global"). This means other threads could potentially execute code that will access some resource that could be accessed by another thread at the same point in time. What happens if one thread accesses this resource while another thread does without exclusive access? Race conditions are introduced. Race conditions are defined as possible scenarios where events happen in a sequence different than the developer intended which leads to undefined behavior. In simple, single-threaded programs, this is not an issue because execution is linear. In more complex programs where code can be running in parallel however, this becomes a real issue. To prevent these problems, atomic instructions and locking mechanisms were introduced. When one thread wants to access a critical resource, it will attempt to acquire a "lock". If another thread is already using this resource, generally the thread attempting to acquire the lock will wait until the other thread is finished with it. Each thread must release the lock to the resource after they're done with it, failure to do so could result in a deadlock. While locking mechanisms such as mutexes have been introduced, developers sometimes struggle to use them properly. For example, what if a piece of shared data gets validated and processed, but while the processing of the data is locked, the validation is not? There is a window between validation and locking where that data can change, and while the developer thinks the data has been validated, it could be substituted with something malicious after it is validated, but before it is used. Parallel programming can be difficult, especially when, as a developer, you also want to factor in the fact that you don't want to put too much code in between locking and unlocking as it can impact performance. See article for the rest iXsystems Remote Debugging the running OpenBSD kernel Subtitled: A way to understand the OpenBSD internals +> The Problem +> A few month ago, I tried porting the FreeBSD kdb along with it's gdb stub implementations to OpenBSD as a practice of learning the internals of an BSD operating system. The ddb code in both FreeBSD and OpenBSD looks pretty much the same and the GDB Remote Serial Protocol looks very minimal. +> But sadly I got very busy and the work is stalled but I'm planning on resuming the attempt as soon as I get the chance, But there is an alternative way to Debugging the OpenBSD kernel via QEMU. What I did below is basically the same with a few minor changes which I hope to describe it as best. +> Installing OpenBSD on Qemu +> For debugging the kernel, we need a working OpenBSD system running on Qemu. I chose to create a raw disk file to be able to easily mount it later via the host and copy the custom kernel onto it. $ qemu-img create -f raw disk.raw 5G $ qemu-system-x8664 -m 256M -drive format=raw,file=install63.fs -drive format=raw,file=disk.raw +> Custom Kernel +> To debug the kernel, we need a version of the kernel with debugging symbols and for that we have to recompile it first. The process is documented at Building the System from Source: ... +> Then we can copy the bsd kernel to the guest machine and keep the bsd.gdb on the host to start the remote debugging via gdb. +> Remote debugging kernel +> Now it's to time to boot the guest with the new custom kernel. Remember that the -s argument enables the gdb server on qemu on localhost port 1234 by default: $ qemu-system-x8664 -m 256M -s -net nic -net user -drive format=raw,file=install63.fs +> Now to finally attach to the running kernel: Interview - Patrick Mooney - Software Engineer pmooney@pfmooney.com / @pfmooney BR: How did you first get introduced to UNIX? AJ: What got you started contributing to an open source project? BR: What sorts of things have you worked on in the past? AJ: Can you tell us more about what attracted you to illumos? BR: How did you get interested in, and started with, systems development? AJ: When did you first get interested in bhyve? BR: How much work was it to take the years-old port of bhyve and get it working on modern IllumOS? AJ: What was the process for getting the bhyve port caught up to current FreeBSD? BR: How usable is bhyve on illumOS? AJ: What area are you most interested in improving in bhyve? BR: Do you think the FreeBSD and illumos versions of bhyve will stay in sync with each other? AJ: What do you do for fun? BR: Anything else you want to mention? News Roundup Setting up buildbot in FreeBSD Jails In this article, I would like to present a tutorial to set up buildbot, a continuous integration (CI) software (like Jenkins, drone, etc.), making use of FreeBSD’s containerization mechanism "jails". We will cover terminology, rationale for using both buildbot and jails together, and installation steps. At the end, you will have a working buildbot instance using its sample build configuration, ready to play around with your own CI plans (or even CD, it’s very flexible!). Some hints for production-grade installations are given, but the tutorial steps are meant for a test environment (namely a virtual machine). Buildbot’s configuration and detailed concepts are not in scope here. Table of contents Choosing host operating system and version for buildbot Create a FreeBSD playground Introduction to jails Overview of buildbot Set up jails Install buildbot master Run buildbot master Install buildbot worker Run buildbot worker Set up web server nginx to access buildbot UI Run your first build Production hints Finished! Choosing host operating system and version for buildbot We choose the released version of FreeBSD (11.1-RELEASE at the moment). There is no particular reason for it, and as a matter of fact buildbot as a Python-based server is very cross-platform; therefore the underlying OS platform and version should not make a large difference. It will make a difference for what you do with buildbot, however. For instance, poudriere is the de-facto standard for building packages from source on FreeBSD. Builds run in jails which may be any FreeBSD base system version older or equal to the host’s version (reason will be explained below). In other words, if the host is FreeBSD 11.1, build jails created by poudriere could e.g. use 9.1, 10.3, 11.0, 11.1, but potentially not version 12 or newer because of incompatibilities with the host’s kernel (jails do not run their own kernel as full virtual machines do). To not prolong this article over the intended scope, the details of which nice things could be done or automated with buildbot are not covered. Package names on the FreeBSD platform are independent of the OS version, since external software (as in: not part of base system) is maintained in FreeBSD ports. So, if your chosen FreeBSD version (here: 11) is still officially supported, the packages mentioned in this post should work. In the unlikely event of package name changes before you read this article, you should be able to find the actual package names like pkg search buildbot. Other operating systems like the various Linux distributions will use different package names but might also offer buildbot pre-packaged. If not, the buildbot installation manual offers steps to install it manually. In such case, the downside is that you will have to maintain and update the buildbot modules outside the stability and (semi-)automatic updates of your OS packages. See article for the rest DigitalOcean Dumping your USB One of the many new features of OpenBSD 6.3 is the possibility to dump USB traffic to userland via bpf(4). This can be done with tcpdump(8) by specifying a USB bus as interface: ``` tcpdump -Xx -i usb0 tcpdump: listening on usb0, link-type USBPCAP 12:28:03.317945 bus 0 < addr 1: ep1 intr 2 0000: 0400 .. 12:28:03.318018 bus 0 > addr 1: ep0 ctrl 8 0000: 00a3 0000 0002 0004 00 ......... [...] ``` As you might have noted I decided to implement the existing USBPcap capture format. A capture format is required because USB packets do not include all the necessary information to properly interpret them. I first thought I would implement libpcap's DLTUSB but then I quickly realize that this was not a standard. It is instead a FreeBSD specific format which has been since then renamed DLTUSBFREEBSD. But I didn't want to embrace xkcd #927, so I look at the existing formats: DLTUSBFREEBSD, DLTUSBLINUX, DLTUSBLINUXMMAPPED, DLTUSBDARWIN and DLT_USBPCAP. I was first a bit sad to see that nobody could agree on a common format then I moved on and picked the simplest one: USBPcap. Implementing an already existing format gives us out-of-box support for all the tools supporting it. That's why having common formats let us share our energy. In the case of USBPcap it is already supported by Wireshark, so you can already inspect your packet graphically. For that you need to first capture raw packets: ``` tcpdump -s 3303 -w usb.pcap -i usb0 tcpdump: listening on usb0, link-type USBPCAP ^C 208 packets received by filter 0 packets dropped by kernel ``` USB packets can be quite big, that's why I'm not using tcpdump(8)'s default packet size. In this case, I want to make sure I can dump the complete uaudio(4) frames. It is important to say that what is dumped to userland is what the USB stack sees. Packets sent on the wire might differ, especially when it comes to retries and timing. So this feature is not here to replace any USB analyser, however I hope that it will help people understand how things work and what the USB stack is doing. Even I found some interesting timing issues while implementing isochronous support. Run OpenBSD on your web server Deploy and login to your OpenBSD server first. As soon as you're there you can enable an httpd(8) daemon, it's already installed on OpenBSD, you just need to configure it: www# vi /etc/httpd.conf Add two server sections---one for www and another for naked domain (all requests are redirected to www). ``` server "www.example.com" { listen on * port 80 root "/htdocs/www.example.com" } server "example.com" { listen on * port 80 block return 301 "http://www.example.com$REQUEST_URI" } ``` httpd is chrooted to /var/www by default, so let's make a document root directory: www# mkdir -p /var/www/htdocs/www.example.com Save and check this configuration: www# httpd -n configuration ok Enable httpd(8) daemon and start it. www# rcctl enable httpd www# rcctl start httpd Publish your website Copy your website content into /var/www/htdocs/www.example.com and then test it your web browser. http://XXX.XXX.XXX.XXX/ Your web server should be up and running. Update DNS records If there is another HTTPS server using this domain, configure that server to redirect all HTTPS requests to HTTP. Now as your new server is ready you can update DNS records accordingly. example.com. 300 IN A XXX.XXX.XXX.XXX www.example.com. 300 IN A XXX.XXX.XXX.XXX Examine your DNS is propagated. $ dig example.com www.example.com Check IP addresses it answer sections. If they are correct, you should be able to access your new web server by its domain name. What's next? Enable HTTPS on your server. Modern Akonadi and KMail on FreeBSD For, quite literally a year or more, KMail and Akonadi on FreeBSD have been only marginally useful, at best. KDE4 era KMail was pretty darn good, but everything after that has had a number of FreeBSD users tearing out their hair. Sure, you can go to Trojitá, which has its own special problems and is generally “meh”, or bail out entirely to webmail, but .. KMail is a really great mail client when it works. Which, on Linux desktops, is nearly always, and on FreeBSD, is was nearly never. I looked at it with Dan and Volker last summer, briefly, and we got not much further than “hmm”. There’s a message about “The world is going to end!” which hardly makes sense, it means that a message has been truncated or corrupted while traversing a UNIX domain socket. Now Alexandre Martins — praise be! — has wandered in with a likely solution. KDE Bug 381850 contains a suggestion, which deserves to be publicised (and tested): sysctl net.local.stream.recvspace=65536 sysctl net.local.stream.sendspace=65536 The default FreeBSD UNIX local socket buffer space is 8kiB. Bumping the size up to 64kiB — which matches the size that Linux has by default — suddenly makes KMail and Akonadi shine again. No other changes, no recompiling, just .. bump the sysctls (perhaps also in /etc/sysctl.conf) and KMail from Area51 hums along all day without ending the world. Since changing this value may have other effects, and Akonadi shouldn’t be dependent on a specific buffer size anyway, I’m looking into the Akonadi code (encouraged by Dan) to either automatically size the socket buffers, or to figure out where in the underlying code the assumption about buffer size lives. So for now, sysctl can make KMail users on FreeBSD happy, and later we hope to have things fully automatic (and if that doesn’t pan out, well, pkg-message exists). PS. Modern KDE PIM applications — Akonadi, KMail — which live in the deskutils/ category of the official FreeBSD ports were added to the official tree April 10th, so you can get your fix now from the official tree. Beastie Bits pkg-provides support for DragonFly (from Rodrigo Osorio) Memories of writing a parser for man pages Bryan Cantrill interview over at DeveloperOnFire podcast 1978-03-25 - 2018-03-25: 40 years BSD Mail My 5 years of FreeBSD gaming: a compendium of free games and engines running natively on FreeBSD Sequential Resilver being upstreamed to FreeBSD, from FreeNAS, where it was ported from ZFS-on-Linux University of Aberdeen’s Internet Transport Research Group is hiring Tarsnap ad Feedback/Questions Dave - mounting non-filesystem things inside jails Morgan - ZFS on Linux Data loss bug Rene - How to keep your ISP’s nose out of your browser history with encrypted DNS Rodriguez - Feedback question! Relating to Windows Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

Second round of ZFS improvements in FreeBSD, Postgres finds that non-FreeBSD/non-Illumos systems are corrupting data, interview with Kevin Bowling, BSDCan list of talks, and cryptographic right answers. Headlines [Other big ZFS improvements you might have missed] 9075 Improve ZFS pool import/load process and corrupted pool recovery One of the first tasks during the pool load process is to parse a config provided from userland that describes what devices the pool is composed of. A vdev tree is generated from that config, and then all the vdevs are opened. The Meta Object Set (MOS) of the pool is accessed, and several metadata objects that are necessary to load the pool are read. The exact configuration of the pool is also stored inside the MOS. Since the configuration provided from userland is external and might not accurately describe the vdev tree of the pool at the txg that is being loaded, it cannot be relied upon to safely operate the pool. For that reason, the configuration in the MOS is read early on. In the past, the two configurations were compared together and if there was a mismatch then the load process was aborted and an error was returned. The latter was a good way to ensure a pool does not get corrupted, however it made the pool load process needlessly fragile in cases where the vdev configuration changed or the userland configuration was outdated. Since the MOS is stored in 3 copies, the configuration provided by userland doesn't have to be perfect in order to read its contents. Hence, a new approach has been adopted: The pool is first opened with the untrusted userland configuration just so that the real configuration can be read from the MOS. The trusted MOS configuration is then used to generate a new vdev tree and the pool is re-opened. When the pool is opened with an untrusted configuration, writes are disabled to avoid accidentally damaging it. During reads, some sanity checks are performed on block pointers to see if each DVA points to a known vdev; when the configuration is untrusted, instead of panicking the system if those checks fail we simply avoid issuing reads to the invalid DVAs. This new two-step pool load process now allows rewinding pools across vdev tree changes such as device replacement, addition, etc. Loading a pool from an external config file in a clustering environment also becomes much safer now since the pool will import even if the config is outdated and didn't, for instance, register a recent device addition. With this code in place, it became relatively easy to implement a long-sought-after feature: the ability to import a pool with missing top level (i.e. non-redundant) devices. Note that since this almost guarantees some loss Of data, this feature is for now restricted to a read-only import. 7614 zfs device evacuation/removal This project allows top-level vdevs to be removed from the storage pool with “zpool remove”, reducing the total amount of storage in the pool. This operation copies all allocated regions of the device to be removed onto other devices, recording the mapping from old to new location. After the removal is complete, read and free operations to the removed (now “indirect”) vdev must be remapped and performed at the new location on disk. The indirect mapping table is kept in memory whenever the pool is loaded, so there is minimal performance overhead when doing operations on the indirect vdev. The size of the in-memory mapping table will be reduced when its entries become “obsolete” because they are no longer used by any block pointers in the pool. An entry becomes obsolete when all the blocks that use it are freed. An entry can also become obsolete when all the snapshots that reference it are deleted, and the block pointers that reference it have been “remapped” in all filesystems/zvols (and clones). Whenever an indirect block is written, all the block pointers in it will be “remapped” to their new (concrete) locations if possible. This process can be accelerated by using the “zfs remap” command to proactively rewrite all indirect blocks that reference indirect (removed) vdevs. Note that when a device is removed, we do not verify the checksum of the data that is copied. This makes the process much faster, but if it were used on redundant vdevs (i.e. mirror or raidz vdevs), it would be possible to copy the wrong data, when we have the correct data on e.g. the other side of the mirror. Therefore, mirror and raidz devices can not be removed. You can use ‘zpool detach’ to downgrade a mirror to a single top-level device, so that you can then remove it 7446 zpool create should support efi system partition This one was not actually merged into FreeBSD, as it doesn’t apply currently, but I would like to switch the way FreeBSD deals with full disks to be closer to IllumOS to make automatic spare replacement a hands-off operation. Since we support whole-disk configuration for boot pool, we also will need whole disk support with UEFI boot and for this, zpool create should create efi-system partition. I have borrowed the idea from oracle solaris, and introducing zpool create -B switch to provide an way to specify that boot partition should be created. However, there is still an question, how big should the system partition be. For time being, I have set default size 256MB (thats minimum size for FAT32 with 4k blocks). To support custom size, the set on creation "bootsize" property is created and so the custom size can be set as: zpool create -B -o bootsize=34MB rpool c0t0d0. After the pool is created, the "bootsize" property is read only. When -B switch is not used, the bootsize defaults to 0 and is shown in zpool get output with no value. Older zfs/zpool implementations can ignore this property. **Digital Ocean** PostgreSQL developers find that every operating system other than FreeBSD and IllumOS might corrupt your data Some time ago I ran into an issue where a user encountered data corruption after a storage error. PostgreSQL played a part in that corruption by allowing checkpoint what should've been a fatal error. TL;DR: Pg should PANIC on fsync() EIO return. Retrying fsync() is not OK at least on Linux. When fsync() returns success it means "all writes since the last fsync have hit disk" but we assume it means "all writes since the last SUCCESSFUL fsync have hit disk". Pg wrote some blocks, which went to OS dirty buffers for writeback. Writeback failed due to an underlying storage error. The block I/O layer and XFS marked the writeback page as failed (ASEIO), but had no way to tell the app about the failure. When Pg called fsync() on the FD during the next checkpoint, fsync() returned EIO because of the flagged page, to tell Pg that a previous async write failed. Pg treated the checkpoint as failed and didn't advance the redo start position in the control file. + All good so far. But then we retried the checkpoint, which retried the fsync(). The retry succeeded, because the prior fsync() *cleared the ASEIO bad page flag*. The write never made it to disk, but we completed the checkpoint, and merrily carried on our way. Whoops, data loss. The clear-error-and-continue behaviour of fsync is not documented as far as I can tell. Nor is fsync() returning EIO unless you have a very new linux man-pages with the patch I wrote to add it. But from what I can see in the POSIX standard we are not given any guarantees about what happens on fsync() failure at all, so we're probably wrong to assume that retrying fsync() is safe. We already PANIC on fsync() failure for WAL segments. We just need to do the same for data forks at least for EIO. This isn't as bad as it seems because AFAICS fsync only returns EIO in cases where we should be stopping the world anyway, and many FSes will do that for us. + Upon further looking, it turns out it is not just Linux brain damage: Apparently I was too optimistic. I had looked only at FreeBSD, which keeps the page around and dirties it so we can retry, but the other BSDs apparently don't (FreeBSD changed that in 1999). From what I can tell from the sources below, we have: Linux, OpenBSD, NetBSD: retrying fsync() after EIO lies FreeBSD, Illumos: retrying fsync() after EIO tells the truth + NetBSD PR to solve the issues + I/O errors are not reported back to fsync at all. + Write errors during genfs_putpages that fail for any reason other than ENOMEM cause the data to be semi-silently discarded. + It appears that UVM pages are marked clean when they're selected to be written out, not after the write succeeds; so there are a bunch of potential races when writes fail. + It appears that write errors for buffercache buffers are semi-silently discarded as well. Interview - Kevin Bowling: Senior Manager Engineering of LimeLight Networks - kbowling@llnw.com / @kevinbowling1 BR: How did you first get introduced to UNIX and BSD? AJ: What got you started contributing to an open source project? BR: What sorts of things have you worked on it the past? AJ: Tell us a bit about LimeLight and how they use FreeBSD. BR: What are the biggest advantages of FreeBSD for LimeLight? AJ: What could FreeBSD do better that would benefit LimeLight? BR: What has LimeLight given back to FreeBSD? AJ: What have you been working on more recently? BR: What do you find to be the most valuable part of open source? AJ: Where do you think the most improvement in open source is needed? BR: Tell us a bit about your computing history collection. What are your three favourite pieces? AJ: How do you keep motivated to work on Open Source? BR: What do you do for fun? AJ: Anything else you want to mention? News Roundup BSDCan 2018 Selected Talks The schedule for BSDCan is up Lots of interesting content, we are looking forward to it We hope to see lots of you there. Make sure you come introduce yourselves to us. Don’t be shy. Remember, if this is your first BSDCan, checkout the newbie session on Thursday night. It’ll help you get to know a few people so you have someone you can ask for guidance. Also, check out the hallway track, the tables, and come to the hacker lounge. iXsystems Cryptographic Right Answers Crypto can be confusing. We all know we shouldn’t roll our own, but what should we use? Well, some developers have tried to answer that question over the years, keeping an updated list of “Right Answers” 2009: Colin Percival of FreeBSD 2015: Thomas H. Ptacek 2018: Latacora A consultancy that provides “Retained security teams for startups”, where Thomas Ptacek works. We’re less interested in empowering developers and a lot more pessimistic about the prospects of getting this stuff right. There are, in the literature and in the most sophisticated modern systems, “better” answers for many of these items. If you’re building for low-footprint embedded systems, you can use STROBE and a sound, modern, authenticated encryption stack entirely out of a single SHA-3-like sponge constructions. You can use NOISE to build a secure transport protocol with its own AKE. Speaking of AKEs, there are, like, 30 different password AKEs you could choose from. But if you’re a developer and not a cryptography engineer, you shouldn’t do any of that. You should keep things simple and conventional and easy to analyze; “boring”, as the Google TLS people would say. Cryptographic Right Answers Encrypting Data Percival, 2009: AES-CTR with HMAC. Ptacek, 2015: (1) NaCl/libsodium’s default, (2) ChaCha20-Poly1305, or (3) AES-GCM. Latacora, 2018: KMS or XSalsa20+Poly1305 Symmetric key length Percival, 2009: Use 256-bit keys. Ptacek, 2015: Use 256-bit keys. Latacora, 2018: Go ahead and use 256 bit keys. Symmetric “Signatures” Percival, 2009: Use HMAC. Ptacek, 2015: Yep, use HMAC. Latacora, 2018: Still HMAC. Hashing algorithm Percival, 2009: Use SHA256 (SHA-2). Ptacek, 2015: Use SHA-2. Latacora, 2018: Still SHA-2. Random IDs Percival, 2009: Use 256-bit random numbers. Ptacek, 2015: Use 256-bit random numbers. Latacora, 2018: Use 256-bit random numbers. Password handling Percival, 2009: scrypt or PBKDF2. Ptacek, 2015: In order of preference, use scrypt, bcrypt, and then if nothing else is available PBKDF2. Latacora, 2018: In order of preference, use scrypt, argon2, bcrypt, and then if nothing else is available PBKDF2. Asymmetric encryption Percival, 2009: Use RSAES-OAEP with SHA256 and MGF1+SHA256 bzzrt pop ffssssssst exponent 65537. Ptacek, 2015: Use NaCl/libsodium (box / cryptobox). Latacora, 2018: Use Nacl/libsodium (box / cryptobox). Asymmetric signatures Percival, 2009: Use RSASSA-PSS with SHA256 then MGF1+SHA256 in tricolor systemic silicate orientation. Ptacek, 2015: Use Nacl, Ed25519, or RFC6979. Latacora, 2018: Use Nacl or Ed25519. Diffie-Hellman Percival, 2009: Operate over the 2048-bit Group #14 with a generator of 2. Ptacek, 2015: Probably still DH-2048, or Nacl. Latacora, 2018: Probably nothing. Or use Curve25519. Website security Percival, 2009: Use OpenSSL. Ptacek, 2015: Remains: OpenSSL, or BoringSSL if you can. Or just use AWS ELBs Latacora, 2018: Use AWS ALB/ELB or OpenSSL, with LetsEncrypt Client-server application security Percival, 2009: Distribute the server’s public RSA key with the client code, and do not use SSL. Ptacek, 2015: Use OpenSSL, or BoringSSL if you can. Or just use AWS ELBs Latacora, 2018: Use AWS ALB/ELB or OpenSSL, with LetsEncrypt Online backups Percival, 2009: Use Tarsnap. Ptacek, 2015: Use Tarsnap. Latacora, 2018: Store PMAC-SIV-encrypted arc files to S3 and save fingerprints of your backups to an ERC20-compatible blockchain. Just kidding. You should still use Tarsnap. Seriously though, use Tarsnap. Adding IPv6 to an existing server I am adding IPv6 addresses to each of my servers. This post assumes the server is up and running FreeBSD 11.1 and you already have an IPv6 address block. This does not cover the creation of an IPv6 tunnel, such as that provided by HE.net. This assumes native IPv6. In this post, I am using the IPv6 addresses from the IPv6 Address Prefix Reserved for Documentation (i.e. 2001:DB8::/32). You should use your own addresses. The IPv6 block I have been assigned is 2001:DB8:1001:8d00/64. I added this to /etc/rc.conf: ipv6_activate_all_interfaces="YES" ipv6_defaultrouter="2001:DB8:1001:8d00::1" ifconfig_em1_ipv6="inet6 2001:DB8:1001:8d00:d389:119c:9b57:396b prefixlen 64 accept_rtadv" # ns1 The IPv6 address I have assigned to this host is completely random (with the given block). I found a random IPv6 address generator and used it to select d389:119c:9b57:396b as the address for this service within my address block. I don’t have the reference, but I did read that randomly selecting addresses within your block is a better approach. In order to invoke these changes without rebooting, I issued these commands: ``` [dan@tallboy:~] $ sudo ifconfig em1 inet6 2001:DB8:1001:8d00:d389:119c:9b57:396b prefixlen 64 accept_rtadv [dan@tallboy:~] $ [dan@tallboy:~] $ sudo route add -inet6 default 2001:DB8:1001:8d00::1 add net default: gateway 2001:DB8:1001:8d00::1 ``` If you do the route add first, you will get this error: [dan@tallboy:~] $ sudo route add -inet6 default 2001:DB8:1001:8d00::1 route: writing to routing socket: Network is unreachable add net default: gateway 2001:DB8:1001:8d00::1 fib 0: Network is unreachable Beastie Bits Ghost in the Shell – Part 1 Enabling compression on ZFS - a practical example Modern and secure DevOps on FreeBSD (Goran Mekić) LibreSSL 2.7.0 Released zrepl version 0.0.3 is out! [ZFS User Conference](http://zfs.datto.com/] Tarsnap Feedback/Questions Benjamin - BSD Personal Mailserver Warren - ZFS volume size limit (show #233) Lars - AFRINIC Brad - OpenZFS vs OracleZFS Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

Kate Nicholls, Learning Technologies Designer of the year and Head of Innovations at Sponge has spent the last year investigating how 360° interactive video can be used for workplace learning. Alongside developer Andrew Hosgood she talks about what she’s learned in the process. We cover the potential pitfalls and technical challenges as well as the huge potential for bringing real benefits to training in businesses. To hear more, and to experience 360° interactive video for learning come along to Stand C10 at Learning Technologies. The questions and their times are provided so you can skip back and forth to learn more on a specific subject: 00:53 – What is the attraction of 360° interactive video and virtual reality? 01:38 – What have you discovered over the last year when looking into the use of this new technology for learning? 03:41 – AJ What are the technical challenges associated with working in 360° interactive video and VR? 05:45 – How accessible is this technology for organisations wanting to use it now? 07:56 – AJ What’s the most important thing you’ve learned about working with 360° interactive video and VR? 10:10 – What have you learnt about where VR and 360° video is going to work within learning? 12:20 – What’s your advice to organisations that are looking to use this technology as part of their learning programmes?