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Fr. Timothy Gallagher and Kris McGregor discuss the often overlooked relationships that shaped the life and spirituality of St. Thérèse of Lisieux. Reflecting on the profound and enduring influence of Thérèse's extended family, Fr. Gallagher takes a special focus on her cousin Marie Guérin, who was both a close friend and spiritual companion to Thérèse. The post TM2 – An Audience with the Pope – St. Therese and Marie: A Story of Two Cousins with Fr. Timothy Gallagher – Discerning Hearts Podcast appeared first on Discerning Hearts Catholic Podcasts.
We're a throwback pod now. Liz loves early TM2!!!! Lots of news updates then season 3 eps 11 & 12. Learn more about your ad choices. Visit megaphone.fm/adchoices
#rhoa #realhousewivesofatlanta #marlo #kenya #jury #RHOBH #RHOSLC #friends #wouldyourather #TM2
Not much happened on TM2 this week. but Kail was not missed. Liz talks about the ep for the first half of the episode then does a little AMA. This episode brought to you by Best Fiends - download today from Google Play or the Apple App Store! Learn more about your ad choices. Visit megaphone.fm/adchoices
Conversamos com Vera Werneck, Professora Titular de Engenharia de Software na UERJ. O vídeo desta entrevista está em https://youtu.be/3r2LvWIYDcc. Lattes da Vera: http://lattes.cnpq.br/7535348349141535 E-mail: vera AT ime.uerj.br Facebook https://www.facebook.com/vera.werneck.5 Instagram https://www.instagram.com/vera_werneck/ Google Scholar da Vera: https://scholar.google.com.br/citations?user=kagKw80AAAAJ&hl=pt-BR Links mencionados: TM2 https://www.tm2.org.br/ Torneio Feminino de Computação https://tfcbr.inf.ufsm.br/quem-somos Indicações de Vera: Histórias Cruzadas O Gambito da Rainha Maid Harry Potter Os entrevistadores deste episódio foram Adolfo Neto e Maria Claudia Emer. A abertura do episódio foi feita por Kathleen Danielly Souza Lins. O Emílias Podcast é um projeto de extensão da UTFPR Curitiba. Descubra tudo sobre o programa Emílias - Armação em Bits em https://linktr.ee/Emilias.
Hi, it's Eric Schleien, and welcome back to another episode of The Intelligent Investing Podcast! In this episode, I had the pleasure of sitting down with the wonderful Jason Rivera who runs Value Investing Journey. I've always liked government contractors due to the sticky nature of their business, high margins, and lots of recurring revenue. I also love them when they are tiny and undiscovered and filling some interesting niche or segment of their market. A company that seems to possibly fit that bill is WidePoint Corporation (WYY). What Is WidePoint Corporation? WidePoint Corporation (WYY) is the leading provider of Trusted Mobility Management (TM2) solutions. TM2 converges at the intersection of WidePoint's pioneering Telecom Lifecycle Management (TLM), Telecom Bill Presentment & Analytics, Mobile and Identity (IdM) Management solutions. Market demand for secure mobile management such as WidePoint TM2 solutions is increasing due to security risks and vulnerabilities that could result from allowing mobile devices and cloud-based applications access to an organization's technology infrastructure. In today's connected world with high-profile data breaches, it is important for an enterprise to have a TM2 solution in place to protect valuable mobile assets and infrastructure while complying with changes in privacy and data protection laws and regulations. WidePoint TM2 solutions provide security, manageability, and visibility of an enterprise's mobile assets and services through a single platform supported by our secure TM2 framework. WidePoint is the leading provider of customized telecom and mobile management solutions to the U.S. public sector. WidePoint has a diverse portfolio of government and commercial clients, serving global and international enterprises and the Fortune 100 across a multitude of industries. More About Eric Schleien To learn more about me, Eric Schleien, check out my personal website and business website. You can also reach out to me on Twitter, Instagram, and LinkedIn. If you'd like to read my book, you can find it on Amazon. Reviews are appreciated! Get In Touch With Jason Rivera To learn more about Jason Rivera, check out his website: Value Investing Journey
WOOOF! Liz can't believe it but she thinks OG is now better than TM2 and it's time to put TM2 out of its misery. There was almost nothing to discuss about this week's episode, so Liz rounds out the pod with some Teen Mom AMAs. Learn more about your ad choices. Visit megaphone.fm/adchoices
We're almost wrapped on the most current season of TM2 and it's been a very weird one. Devoin claims MTV faked an entire text exchange between he and Brianna. Liz isn't sure what to believe. Also Jade needs to stop calling her mom in emergencies. Learn more about your ad choices. Visit megaphone.fm/adchoices
Mashup between TheHoodRatChitChat and Tm2$; both discussing the ideas and personal experiences surrounding PTSD in our neighborhoods. Sidebar: I became a guest on my own show for this one, this was a really good episode & I hope each and every listener learns from what they hear today! --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app Support this podcast: https://anchor.fm/tariq-k-hill/support
Audix just released a simple and effective way to test in-ear monitors (IEMs) for potential damage or performance degradation. By pairing the TM2 with test and measurement software, a transfer function of an in-ear monitor can be easily generated and compared to previous measurements of the same device. Steve Young and Fred Bigeh join us in a demonstration and discussion on the TM2You can watch the video of this episode on the ProSoundWeb YouTube channelThis episode is sponsored by: Audix NEW Online Podcast Merch store: https://teespring.com/stores/signal-to-noise-podcastPlease check out and support The Roadie Clinic, Their mission is simple. "We exist to empower & heal roadies and their families by providing resources & services tailored to the struggles of the touring lifestyle."Be sure to check out the Signal To Noise Facebook Group. It's a space for listeners to create to generate conversations around the people and topics covered in the podcast — we want your questions and comments! Let's build a great sound community with a place to learn, discuss and reminisce about the “good old days.”The Signal To Noise podcast series on ProSoundWeb is hosted by Live Sound/PSW technical editor Michael Lawrence and pro audio veterans Kyle Chirnside/ Chris LeonardSend us your comments at signal2noisepodcast@gmail.com
Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.08.27.270991v1?rss=1 Authors: Jin, F., Sun, M., Fujii, T., Yamada, Y., Wang, J., Maturana, A., Wada, M., Su, S., Ma, J., Takeda, H., Kusakizako, T., Tomita, A., Nakura, Y. N., Liu, K., Uemura, T., Nomura, Y., Nomura, N., Ito, K., Nureki, O., Namba, K., Iwata, S., Yu, Y., Hattori, M. Abstract: MgtE is a Mg2+ channel conserved in organisms ranging from prokaryotes to eukaryotes, including humans, and plays an important role in Mg2+ homeostasis. The previously determined MgtE structures in the Mg2+-bound, closed state and structure-based functional analyses of MgtE revealed that the binding of Mg2+ ions to the MgtE cytoplasmic domain induces channel inactivation to maintain Mg2+ homeostasis. However, due to the lack of a structure of the MgtE channel, including its transmembrane domain in Mg2+-free conditions, the pore-opening mechanism of MgtE has remained unclear. Here, we determined the cryoelectron microscopy (cryo-EM) structure of the MgtE-Fab complex in the absence of Mg2+ ions. The Mg2+-free MgtE transmembrane domain structure and its comparison with the Mg2+-bound, closed-state structure, together with functional analyses, showed the Mg2+-dependent pore opening of MgtE on the cytoplasmic side and revealed the kink motions of the TM2 and TM5 helices at the glycine residues, which are important for channel activity. Overall, our work provides structure-based mechanistic insights into the channel gating of MgtE. Copy rights belong to original authors. Visit the link for more info
Today Seynique and Lauren from my FAVORITE Degrassi recap podcast (Everybody Wants Something) join me for this seriously amazing trip down memory lane. Most TV shows really hit their stride at season 4, and TM2 is no exception! On todays episode, Chelsea and Adam have “safe sex” using my personal favorite birth control, THE PULLOUT, … Continue reading Teen Mom 2 Season 4: Episode 1 “Under Pressure” with special guests Seynique and Lauren →
Just kidding on the title, this isn't about Hanukkah... but it IS Hanukkah so YOU KNOW!Liz breaks down the total mess that was the TMYP fight at the TM2 reunion and calls for Bri to be let go of TMYP.See ya next year, loves! See acast.com/privacy for privacy and opt-out information.
Liz's back hurts! But she soldiers through and gives all her thoughts on Jenelle leaving David, Amber's plea deal and this week's TM2 and TMYP! See acast.com/privacy for privacy and opt-out information.
Throw back episode! Liz had to pre-record this week's episode so she asked her dear dear friend Tomlin to recap TM2 season 5 ep 10 with her.This episode has EVERYTHING! Kail and Javi get married! Jenelle goes to jail! Chelsea is lazy! Leah and Jeremy fight!PS, please excuse the not-amazing sound quality Liz had extreme technical difficulties and had to improvise. See acast.com/privacy for privacy and opt-out information.
Hey all! I’ve returned from a stressful week of stuff but Im back and more ready than ever to discuss this RIVETTING season of TM2! Just kidding….this is pretty boring. But I do have an amazing guest: Johnny from Alright Mary podcast! We break down the Amber drama and delve deep (or as deep as … Continue reading Teen Mom 2 Season WHATEVER Episode 1 & 2 “Hey Girl Hey” and “Welcome to the Jungle”with EXTRA special guest: Johnny from the Alright Mary Podcast! →
Hey all! I am spending all day working on an audio issue for the first two episode extravaganza of this current season of TM2…and that will most likely take me several hours today and give me tons of gray hair. But until then…to tide you over I am releasing my Amber Behind Bars Special from … Continue reading Special Patreon freebie: Amber Behind Bars →
Liz gives an update on TM2 and the Jenelle situation, feels the comedown from the week of drama, and rants about Chelsea refusing to do therapy!FIMH is an Emotionally Broken Psychos Podcast. Follow the show on Twitter and Instagram (@EBP_Feathers) and make sure you're subscribed so you never miss a moment of this juicy dish! If you're really digging the dirt Liz brings you week after week, rate and review so she can share the Teen Mom love with everyone! See acast.com/privacy for privacy and opt-out information.
Liz unpacks the v. v. dark internet drama that went on between David, Jenelle, and Nate this week... plus, TM2 is back!!!FIMH is an Emotionally Broken Psychos Podcast. Follow the show on Twitter and Instagram (@EBP_Feathers) and make sure you're subscribed so you never miss a moment of this juicy dish! If you're really digging the dirt Liz brings you week after week, rate and review so she can share the Teen Mom love with everyone! See acast.com/privacy for privacy and opt-out information.
Hello friends! Can you feel it in the air? I’m talking about DAT NEW FRESH SEASON OF TEEM MOM 2!!! Its just around the corner, so I am wrapping up this season so we can concentrate on real time TM2 happenings. That means you will get two episodes this week! yay!!! This week, Jordan lives … Continue reading Teen Mom 2 Season 2: Episode 11 “Falling” →
Happy New Year, friends! Im baaaack! And so are the 4 TM2 girlses and their DRAWMA MAWMA! On this episode, Jordan would rather play with a firetruck than stop Kailyn and Jo from banging right there in front of him, We get our first “Jesus God, Leah!” of the series, Chelsea “marches” her way around … Continue reading Teen Mom 2 Season 2: Episode 10 “Love Comes and Goes” →
Hello friends! This was a fun episode…especially because you get a surprise LIVE Jenelle update in the middle of it! This season of TM2 is reminding me why we all loved this thing so much…because stuff ACTUALLY HAPPENS! On this episode, Gracie takes her first step and literally no one cares, Chelsea breaks her knee … Continue reading Teen Mom 2 Season 2: Episode 2 “Curveball” →
We have arrived at the end of season 1!!! I think we will all miss it terribly, but it will give us an opportunity to explore our OG girls soon! Today Nick joins me one last time (until season 2 of TM2) to discuss the ins and outs of the journeys of these girls this … Continue reading Teen Mom 2 Season 1: Episode 12 “Judgement Day” →
This week, Liz welcomes her dear friend Jess to discuss the episode for which this pod is named. They briefly discuss this week's boring TM2 episode, then recap Season 3 Episode 3 (Volume 7, Episode 3 on Amazon).Remember, all extended episodes covering each mom's journey as seen that week on MTV are always available on the Emotionally Broken Psychos Patreon page (https://patreon.com/ebpsychos) under the $5/month reward level - become a supporter today to ensure you never miss a moment of this juicy dish! See acast.com/privacy for privacy and opt-out information.
Yes, Javi is pregnant with a new baby! But... Liz had to record early this week, so no talk of that on this episode! Sorry! It's her birthday, so be nice. Liz recaps TM2 and reads listener comments on this season of TM2 and TMYP.Remember, all extended episodes covering each mom's journey as seen that week on MTV are always available on the Emotionally Broken Psychos Patreon page (https://patreon.com/ebpsychos) under the $5/month reward level - become a supporter today to ensure you never miss a moment of this juicy dish! See acast.com/privacy for privacy and opt-out information.
Liz welcomes Nikki Pierson to discuss Stephan's rage, Denea's temper tantrum, and all the TM2 reunion drama. Nikki also shares her very special one degree of separation from Leah.Remember, all extended episodes covering each mom's journey as seen that week on MTV are always available on the Emotionally Broken Psychos Patreon page (https://patreon.com/ebpsychos) under the $5/month reward level - become a supporter today to ensure you never miss a moment of this juicy dish! See acast.com/privacy for privacy and opt-out information.
(TM2 talk starts at 18:35) Tierra and Aminah talk adding another kid to their families! Teem Mom 2 season 9 episode 2
Teen Mom 2 is back!! Liz gives her quick thoughts on TMYP, like how Lexi is the most pathetic person on tv and gives a full recap on TM2. She is troubled by Jenelle's main storyline being about Kaiser's abuse and wonders why Chelsea got so much screen time.Remember, all extended episodes covering each mom's journey as seen that week on MTV are always available on the Emotionally Broken Psychos Patreon page (https://patreon.com/ebpsychos) under the $5/month reward level - become a supporter today to ensure you never miss a moment of this juicy dish! See acast.com/privacy for privacy and opt-out information.
Papers we love: ARC by Bryan Cantrill, SSD caching adventures with ZFS, OpenBSD full disk encryption setup, and a Perl5 Slack Syslog BSD daemon. This episode was brought to you by Headlines Papers We Love: ARC: A Self-Tuning, Low Overhead Replacement Cache (https://www.youtube.com/watch?v=F8sZRBdmqc0&feature=youtu.be) Ever wondered how the ZFS ARC (Adaptive Replacement Cache) works? How about if Bryan Cantrill presented the original paper on its design? Today is that day. Slides (https://www.slideshare.net/bcantrill/papers-we-love-arc-after-dark) It starts by looking back at a fundamental paper from the 40s where the architecture of general-purpose computers are first laid out The main is the description of memory hierarchies, where you have a small amount of very fast memory, then the next level is slower but larger, and on and on. As we look at the various L1, L2, and L3 caches on a CPU, then RAM, then flash, then spinning disks, this still holds true today. The paper then does a survey of the existing caching policies and tries to explain the issues with each. This includes ‘MIN', which is the theoretically optimal policy, which requires future knowledge, but is useful for setting the upper bound, what is the best we could possibly do. The paper ends up showing that the ARC can end up being better than manually trying to pick the best number for the workload, because it adapts as the workload changes At about 1:25 into the video, Bryan start talking about the practical implementation of the ARC in ZFS, and some challenges they have run into recently at Joyent. A great discussion about some of the problems when ZFS needs to shrink the ARC. Not all of it applies 1:1 to FreeBSD because the kernel and the kmem implementation are different in a number of ways There were some interesting questions asked at the end as well *** How do I use man pages to learn how to use commands? (https://unix.stackexchange.com/a/193837) nwildner on StackExchange has a very thorough answer to the question how to interpret man pages to understand complicated commands (xargs in this case, but not specifically). Have in mind what you want to do. When doing your research about xargs you did it for a purpose, right? You had a specific need that was reading standard output and executing commands based on that output. But, when I don't know which command I want? Use man -k or apropos (they are equivalent). If I don't know how to find a file: man -k file | grep search. Read the descriptions and find one that will better fit your needs. Apropos works with regular expressions by default, (man apropos, read the description and find out what -r does), and on this example I'm looking for every manpage where the description starts with "report". Always read the DESCRIPTION before starting Take a time and read the description. By just reading the description of the xargs command we will learn that: xargs reads from STDIN and executes the command needed. This also means that you will need to have some knowledge of how standard input works, and how to manipulate it through pipes to chain commands The default behavior is to act like /bin/echo. This gives you a little tip that if you need to chain more than one xargs, you don't need to use echo to print. We have also learned that unix filenames can contain blank and newlines, that this could be a problem and the argument -0 is a way to prevent things explode by using null character separators. The description warns you that the command being used as input needs to support this feature too, and that GNU find support it. Great. We use a lot of find with xargs. xargs will stop if exit status 255 is reached. Some descriptions are very short and that is generally because the software works on a very simple way. Don't even think of skipping this part of the manpage ;) Other things to pay attention... You know that you can search for files using find. There is a ton of options and if you only look at the SYNOPSIS, you will get overwhelmed by those. It's just the tip of the iceberg. Excluding NAME, SYNOPSIS, and DESCRIPTION, you will have the following sections: When this method will not work so well... + Tips that apply to all commands Some options, mnemonics and "syntax style" travel through all commands making you buy some time by not having to open the manpage at all. Those are learned by practice and the most common are: Generally, -v means verbose. -vvv is a variation "very very verbose" on some software. Following the POSIX standard, generally one dash arguments can be stacked. Example: tar -xzvf, cp -Rv. Generally -R and/or -r means recursive. Almost all commands have a brief help with the --help option. --version shows the version of a software. -p, on copy or move utilities means "preserve permissions". -y means YES, or "proceed without confirmation" in most cases. Default values of commands. At the pager chunk of this answer, we saw that less -is is the pager of man. The default behavior of commands are not always shown at a separated section on manpages, or at the section that is most top placed. You will have to read the options to find out defaults, or if you are lucky, typing /pager will lead you to that info. This also requires you to know the concept of the pager(software that scrolls the manpage), and this is a thing you will only acquire after reading lots of manpages. And what about the SYNOPSIS syntax? After getting all the information needed to execute the command, you can combine options, option-arguments and operands inline to make your job done. Overview of concepts: Options are the switches that dictates a command behavior. "Do this" "don't do this" or "act this way". Often called switches. Check out the full answer and see if it helps you better grasp the meaning of a man page and thus the command. *** My adventure into SSD caching with ZFS (Home NAS) (https://robertputt.co.uk/my-adventure-into-ssd-caching-with-zfs-home-nas.html) Robert Putt as written about his adventure using SSDs for caching with ZFS on his home NAS. Recently I decided to throw away my old defunct 2009 MacBook Pro which was rotting in my cupboard and I decided to retrieve the only useful part before doing so, the 80GB Intel SSD I had installed a few years earlier. Initially I thought about simply adding it to my desktop as a bit of extra space but in 2017 80GB really wasn't worth it and then I had a brainwave… Lets see if we can squeeze some additional performance out of my HP Microserver Gen8 NAS running ZFS by installing it as a cache disk. I installed the SSD to the cdrom tray of the Microserver using a floppy disk power to SATA power converter and a SATA cable, unfortunately it seems the CD ROM SATA port on the motherboard is only a 3gbps port although this didn't matter so much as it was an older 3gbps SSD anyway. Next I booted up the machine and to my suprise the disk was not found in my FreeBSD install, then I realised that the SATA port for the CD drive is actually provided by the RAID controller, so I rebooted into intelligent provisioning and added an additional RAID0 array with just the 1 disk to act as my cache, in fact all of the disks in this machine are individual RAID0 arrays so it looks like just a bunch of disks (JBOD) as ZFS offers additional functionality over normal RAID (mainly scrubbing, deduplication and compression). Configuration Lets have a look at the zpool before adding the cache drive to make sure there are no errors or uglyness: Now lets prep the drive for use in the zpool using gpart. I want to split the SSD into two seperate partitions, one for L2ARC (read caching) and one for ZIL (write caching). I have decided to split the disk into 20GB for ZIL and 50GB for L2ARC. Be warned using 1 SSD like this is considered unsafe because it is a single point of failure in terms of delayed writes (a redundant configuration with 2 SSDs would be more appropriate) and the heavy write cycles on the SSD from the ZIL is likely to kill it over time. Now it's time to see if adding the cache has made much of a difference. I suspect not as my Home NAS sucks, it is a HP Microserver Gen8 with the crappy Celeron CPU and only 4GB RAM, anyway, lets test it and find out. First off lets throw fio at the mount point for this zpool and see what happens both with the ZIL and L2ARC enabled and disabled. Observations Ok, so the initial result is a little dissapointing, but hardly unexpected, my NAS sucks and there are lots of bottle necks, CPU, memory and the fact only 2 of the SATA ports are 6gbps. There is no real difference performance wise in comparison between the results, the IOPS, bandwidth and latency appear very similar. However lets bare in mind fio is a pretty hardcore disk benchmark utility, how about some real world use cases? Next I decided to test a few typical file transactions that this NAS is used for, Samba shares to my workstation. For the first test I wanted to test reading a 3GB file over the network with both the cache enabled and disabled, I would run this multiple times to ensure the data is hot in the L2ARC and to ensure the test is somewhat repeatable, the network itself is an uncongested 1gbit link and I am copying onto the secondary SSD in my workstation. The dataset for these tests has compression and deduplication disabled. Samba Read Test Not bad once the data becomes hot in the L2ARC cache reads appear to gain a decent advantage compared to reading from the disk directly. How does it perform when writing the same file back accross the network using the ZIL vs no ZIL. Samba Write Test Another good result in the real world test, this certainately helps the write transfer speed however I do wonder what would happen if you filled the ZIL transferring a very large file, however this is unlikely with my use case as I typically only deal with a couple of files of several hundred megabytes at any given time so a 20GB ZIL should suit me reasonably well. Is ZIL and L2ARC worth it? I would imagine with a big beefy ZFS server running in a company somewhere with a large disk pool and lots of users with multiple enterprise level SSD ZIL and L2ARC would be well worth the investment, however at home I am not so sure. Yes I did see an increase in read speeds with cached data and a general increase in write speeds however it is use case dependant. In my use case I rarely access the same file frequently, my NAS primarily serves as a backup and for archived data, and although the write speeds are cool I am not sure its a deal breaker. If I built a new home NAS today I'd probably concentrate the budget on a better CPU, more RAM (for ARC cache) and more disks. However if I had a use case where I frequently accessed the same files and needed to do so in a faster fashion then yes, I'd probably invest in an SSD for caching. I think if you have a spare SSD lying around and you want something fun todo with it, sure chuck it in your ZFS based NAS as a cache mechanism. If you were planning on buying an SSD for caching then I'd really consider your needs and decide if the money can be spent on alternative stuff which would improve your experience with your NAS. I know my NAS would benefit more from an extra stick of RAM and a more powerful CPU, but as a quick evening project with some parts I had hanging around adding some SSD cache was worth a go. More Viewer Interview Questions for Allan News Roundup Setup OpenBSD 6.2 with Full Disk Encryption (https://blog.cagedmonster.net/setup-openbsd-with-full-disk-encryption/) Here is a quick way to setup (in 7 steps) OpenBSD 6.2 with the encryption of the filesystem. First step: Boot and start the installation: (I)nstall: I Keyboard Layout: ENTER (I'm french so in my case I took the FR layout) Leave the installer with: ! Second step: Prepare your disk for encryption. Using a SSD, my disk is named : sd0, the name may vary, for example : wd0. Initiating the disk: Configure your volume: Now we'll use bioctl to encrypt the partition we created, in this case : sd0a (disk sd0 + partition « a »). Enter your passphrase. Third step: Let's resume the OpenBSD's installer. We follow the install procedure Fourth step: Partitioning of the encrypted volume. We select our new volume, in this case: sd1 The whole disk will be used: W(hole) Let's create our partitions: NB: You are more than welcome to create multiple partitions for your system. Fifth step: System installation It's time to choose how we'll install our system (network install by http in my case) Sixth step: Finalize the installation. Last step: Reboot and start your system. Put your passphrase. Welcome to OpenBSD 6.2 with a full encrypted file system. Optional: Disable the swap encryption. The swap is actually part of the encrypted filesystem, we don't need OpenBSD to encrypt it. Sysctl is giving us this possibility. Step-by-Step FreeBSD installation with ZFS and Full Disk Encryption (https://blog.cagedmonster.net/step-by-step-freebsd-installation-with-full-disk-encryption/) 1. What do I need? For this tutorial, the installation has been made on a Intel Core i7 - AMD64 architecture. On a USB key, you would probably use this link : ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/11.1/FreeBSD-11.1-RELEASE-amd64-mini-memstick.img If you can't do a network installation, you'd better use this image : ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/11.1/FreeBSD-11.1-RELEASE-amd64-memstick.img You can write the image file on your USB device (replace XXXX with the name of your device) using dd : # dd if=FreeBSD-11.1-RELEASE-amd64-mini-memstick.img of=/dev/XXXX bs=1m 2. Boot and install: Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F1.png) 3. Configure your keyboard layout: Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F2.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F3.png) 4. Hostname and system components configuration : Set the name of your machine: [Screenshot](https://blog.cagedmonster.net/content/images/2017/09/F4.png_ What components do you want to install? Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F5.png) 5. Network configuration: Select the network interface you want to configure. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F6.png) First, we configure our IPv4 network. I used a static adress so you can see how it works, but you can use DHCP for an automated configuration, it depends of what you want to do with your system (desktop/server) Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F7.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F7-1.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F8.png) IPv6 network configuration. Same as for IPv4, you can use SLAAC for an automated configuration. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F9.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F10-1.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F10-2.png) Here, you can configure your DNS servers, I used the Google DNS servers so you can use them too if needed. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F11.png) 6. Select the server you want to use for the installation: I always use the IPv6 mirror to ensure that my IPv6 network configuration is good.Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F12.png) 7. Disk configuration: As we want to do an easy full disk encryption, we'll use ZFS. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F13.png) Make sure to select the disk encryption :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F14.png) Launch the disk configuration :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F15.png) Here everything is normal, you have to select the disk you'll use :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F16.png) I have only one SSD disk named da0 :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F17.png) Last chance before erasing your disk :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F18.png) Time to choose the password you'll use to start your system : Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F19.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F20.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F21.png) 8. Last steps to finish the installation: The installer will download what you need and what you selected previously (ports, src, etc.) to create your system: Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F22.png) 8.1. Root password: Enter your root password: Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F22-1.png) 8.2. Time and date: Set your timezone, in my case: Europe/France Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F22-2.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F23.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F23-1.png) Make sure the date and time are good, or you can change them :Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F24.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F25.png) 8.3. Services: Select the services you'll use at system startup depending again of what you want to do. In many cases powerd and ntpd will be useful, sshd if you're planning on using FreeBSD as a server. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26.png) 8.4. Security: Security options you want to enable. You'll still be able to change them after the installation with sysctl. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-1.png) 8.5. Additionnal user: Create an unprivileged system user: Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-2.png) Make sure your user is in the wheel group so he can use the su command. Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-3.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-4.png) 8.6. The end: End of your configuration, you can still do some modifications if you want : Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-5.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-6.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F26-7.png) 9. First boot: Enter the passphrase you have chosen previously : Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F27.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F28.png) & Screenshot (https://blog.cagedmonster.net/content/images/2017/09/F29.png) Welcome to Freebsd 11.1 with full disk encryption! *** The anatomy of ldd program on OpenBSD (http://nanxiao.me/en/the-anatomy-of-ldd-program-on-openbsd/) In the past week, I read the ldd (https://github.com/openbsd/src/blob/master/libexec/ld.so/ldd/ldd.c) source code on OpenBSD to get a better understanding of how it works. And this post should also be a reference for other*NIX OSs. The ELF (https://en.wikipedia.org/wiki/Executable_and_Linkable_Format) file is divided into 4 categories: relocatable, executable, shared, and core. Only the executable and shared object files may have dynamic object dependencies, so the ldd only check these 2 kinds of ELF file: (1) Executable. ldd leverages the LD_TRACE_LOADED_OBJECTS environment variable in fact, and the code is as following: if (setenv("LD_TRACE_LOADED_OBJECTS", "true", 1) < 0) err(1, "setenv(LD_TRACE_LOADED_OBJECTS)"); When LDTRACELOADED_OBJECTS is set to 1 or true, running executable file will show shared objects needed instead of running it, so you even not needldd to check executable file. See the following outputs: $ /usr/bin/ldd usage: ldd program ... $ LD_TRACE_LOADED_OBJECTS=1 /usr/bin/ldd Start End Type Open Ref GrpRef Name 00000b6ac6e00000 00000b6ac7003000 exe 1 0 0 /usr/bin/ldd 00000b6dbc96c000 00000b6dbcc38000 rlib 0 1 0 /usr/lib/libc.so.89.3 00000b6d6ad00000 00000b6d6ad00000 rtld 0 1 0 /usr/libexec/ld.so (2) Shared object. The code to print dependencies of shared object is as following: if (ehdr.e_type == ET_DYN && !interp) { if (realpath(name, buf) == NULL) { printf("realpath(%s): %s", name, strerror(errno)); fflush(stdout); _exit(1); } dlhandle = dlopen(buf, RTLD_TRACE); if (dlhandle == NULL) { printf("%sn", dlerror()); fflush(stdout); _exit(1); } _exit(0); } Why the condition of checking a ELF file is shared object or not is like this: if (ehdr.e_type == ET_DYN && !interp) { ...... } That's because the file type of position-independent executable (PIE) is the same as shared object, but normally PIE contains a interpreter program header since it needs dynamic linker to load it while shared object lacks (refer this article). So the above condition will filter PIE file. The dlopen(buf, RTLD_TRACE) is used to print dynamic object information. And the actual code is like this: if (_dl_traceld) { _dl_show_objects(); _dl_unload_shlib(object); _dl_exit(0); } In fact, you can also implement a simple application which outputs dynamic object information for shared object yourself: # include int main(int argc, char **argv) { dlopen(argv[1], RTLD_TRACE); return 0; } Compile and use it to analyze /usr/lib/libssl.so.43.2: $ cc lddshared.c $ ./a.out /usr/lib/libssl.so.43.2 Start End Type Open Ref GrpRef Name 000010e2df1c5000 000010e2df41a000 dlib 1 0 0 /usr/lib/libssl.so.43.2 000010e311e3f000 000010e312209000 rlib 0 1 0 /usr/lib/libcrypto.so.41.1 The same as using ldd directly: $ ldd /usr/lib/libssl.so.43.2 /usr/lib/libssl.so.43.2: Start End Type Open Ref GrpRef Name 00001d9ffef08000 00001d9fff15d000 dlib 1 0 0 /usr/lib/libssl.so.43.2 00001d9ff1431000 00001d9ff17fb000 rlib 0 1 0 /usr/lib/libcrypto.so.41.1 Through the studying of ldd source code, I also get many by-products: such as knowledge of ELF file, linking and loading, etc. So diving into code is a really good method to learn *NIX deeper! Perl5 Slack Syslog BSD daemon (https://clinetworking.wordpress.com/2017/10/13/perl5-slack-syslog-bsd-daemon/) So I have been working on my little Perl daemon for a week now. It is a simple syslog daemon that listens on port 514 for incoming messages. It listens on a port so it can process log messages from my consumer Linux router as well as the messages from my server. Messages that are above alert are sent, as are messages that match the regex of SSH or DHCP (I want to keep track of new connections to my wifi). The rest of the messages are not sent to slack but appended to a log file. This is very handy as I can get access to info like failed ssh logins, disk failures, and new devices connecting to the network all on my Android phone when I am not home. Screenshot (https://clinetworking.files.wordpress.com/2017/10/screenshot_2017-10-13-23-00-26.png) The situation arose today that the internet went down and I thought to myself what would happen to all my important syslog messages when they couldn't be sent? Before the script only ran an eval block on the botsend() function. The error was returned, handled, but nothing was done and the unsent message was discarded. So I added a function that appended unsent messengers to an array that are later sent when the server is not busy sending messages to slack. Slack has a limit of one message per second. The new addition works well and means that if the internet fails my server will store these messages in memory and resend them at a rate of one message per second when the internet connectivity returns. It currently sends the newest ones first but I am not sure if this is a bug or a feature at this point! It currently works with my Linux based WiFi router and my FreeBSD server. It is easy to scale as all you need to do is send messages to syslog to get them sent to slack. You could sent CPU temp, logged in users etc. There is a github page: https://github.com/wilyarti/slackbot Lscpu for OpenBSD/FreeBSD (http://nanxiao.me/en/lscpu-for-openbsdfreebsd/) Github Link (https://github.com/NanXiao/lscpu) There is a neat command, lscpu, which is very handy to display CPU information on GNU/Linux OS: $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 32 On-line CPU(s) list: 0-31 Thread(s) per core: 2 Core(s) per socket: 8 Socket(s): 2 But unfortunately, the BSD OSs lack this command, maybe one reason is lscpu relies heavily on /proc file system which BSD don't provide, :-). TakeOpenBSD as an example, if I want to know CPU information, dmesg should be one choice: $ dmesg | grep -i cpu cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM)2 Duo CPU P8700 @ 2.53GHz, 2527.35 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM, PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,NXE,LONG,LAHF,PERF,SENSOR cpu0: 3MB 64b/line 8-way L2 cache cpu0: apic clock running at 266MHz cpu0: mwait min=64, max=64, C-substates=0.2.2.2.2.1.3, IBE But the output makes me feeling messy, not very clear. As for dmidecode, it used to be another option, but now can't work out-of-box because it will access /dev/mem which for security reason, OpenBSD doesn't allow by default (You can refer this discussion): $ ./dmidecode $ dmidecode 3.1 Scanning /dev/mem for entry point. /dev/mem: Operation not permitted Based on above situation, I want a specified command for showing CPU information for my BSD box. So in the past 2 weeks, I developed a lscpu program for OpenBSD/FreeBSD, or more accurately, OpenBSD/FreeBSD on x86 architecture since I only have some Intel processors at hand. The application getsCPU metrics from 2 sources: (1) sysctl functions. The BSD OSs provide sysctl interface which I can use to get general CPU particulars, such as how many CPUs the system contains, the byte-order of CPU, etc. (2) CPUID instruction. For x86 architecture, CPUID instruction can obtain very detail information of CPU. This coding work is a little tedious and error-prone, not only because I need to reference both Intel and AMD specifications since these 2 vendors have minor distinctions, but also I need to parse the bits of register values. The code is here (https://github.com/NanXiao/lscpu), and if you run OpenBSD/FreeBSD on x86 processors, please try it. It will be better you can give some feedback or report the issues, and I appreciate it very much. In the future if I have other CPUs resource, such as ARM or SPARC64, maybe I will enrich this small program. *** Beastie Bits OpenBSD Porting Workshop - Brian Callahan will be running an OpenBSD porting workshop in NYC for NYC*BUG on December 6, 2017. (http://daemonforums.org/showthread.php?t=10429) Learn to tame OpenBSD quickly (http://www.openbsdjumpstart.org/#/) Detect the operating system using UDP stack corner cases (https://gist.github.com/sortie/94b302dd383df19237d1a04969f1a42b) *** Feedback/Questions Awesome Mike - ZFS Questions (http://dpaste.com/1H22BND#wrap) Michael - Expanding a file server with only one hard drive with ZFS (http://dpaste.com/1JRJ6T9) - information based on Allan's IRC response (http://dpaste.com/36M7M3E) Brian - Optimizing ZFS for a single disk (http://dpaste.com/3X0GXJR#wrap) ***