waiting for summer Esk 🐌⚡💜<p>howdy, folks - it's been a bit since our last <a href="https://hachyderm.io/tags/hachyderm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hachyderm</span></a> infra check in.</p><p>stuff in motion:</p><p>- ditching <a href="https://hachyderm.io/tags/terraform" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>terraform</span></a> cloud & tf for <a href="https://hachyderm.io/tags/opentofu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>opentofu</span></a> and <a href="https://hachyderm.io/tags/atlantis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atlantis</span></a>. we are just about to import our dev environment and put it through its paces.<br>- bringing <a href="https://hachyderm.io/tags/postgresql" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>postgresql</span></a> under ansible management. the team has been doing awesome work, and we've started to spin up dev nodes using the new playbooks. soon: production!<br>- moving <a href="https://hachyderm.io/tags/DNS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DNS</span></a> zones away from AWS route 53. we chose bunny DNS as our provider and have been doing basic tests in dev. we'll likely prep our records for production this week with a plan for a cutover in one of the coming weekends.</p><p>and if you filled out our volunteer form and haven't heard from me in a bit - you're still on the list. we'll onboard a new batch of folks in the next couple of weeks.</p><p>:hachyderm: :blobfoxheartcute: </p><p><span class="h-card" translate="no"><a href="https://hachyderm.io/@hachyderm" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>hachyderm</span></a></span> </p><p><a href="https://hachyderm.io/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>devops</span></a> <a href="https://hachyderm.io/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sre</span></a> <a href="https://hachyderm.io/tags/mastoadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mastoadmin</span></a></p>
Recent searches
No recent searches
Search options
Not available on triangletoot.party.
triangletoot.party is one of the many independent Mastodon servers you can use to participate in the fediverse.
Mastodon instance focused on the Triangle region of North Carolina. Keeping out jerks since 2019. Anti-racist, anti-fascist, and anti-TERF.
Administered by:
Server stats:
78active users
triangletoot.party: About · Status · Profiles directory · Privacy policy
Mastodon: About · Get the app · Keyboard shortcuts · View source code · v4.3.6
#sre
2 posts · 2 participants · 1 post today
Jan Schaumann<p>System Administration</p><p>Week 7, HTTP and CDNs</p><p>After discussing the DNS, we now move on to <a href="https://mstdn.social/tags/HTTP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTTP</span></a> and HTTPS. While we don't have videos for these sections, hopefully the lecture slides can help you get an idea of what we're covering there. We review the basic HTTP protocol, peek at <a href="https://mstdn.social/tags/QUIC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QUIC</span></a> and H3, and talk about load balancing and content delivery networks:</p><p><a href="https://stevens.netmeister.org/615/07.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">stevens.netmeister.org/615/07.</span><span class="invisible">pdf</span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Paradox Fox<p>✨ New stickers! ✨ </p><p>Show your sarcastic side with this "Hello I'm Dead Inside" name badge sticker! 😒 </p><p>:etsy: <a href="https://paradoxfoxuk.etsy.com/listing/1885634721" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">paradoxfoxuk.etsy.com/listing/</span><span class="invisible">1885634721</span></a></p><p><a href="https://handmade.social/tags/DeveloperLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DeveloperLife</span></a> <a href="https://handmade.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a> <a href="https://handmade.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://handmade.social/tags/OnCall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OnCall</span></a> <a href="https://handmade.social/tags/TechHumor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TechHumor</span></a> <a href="https://handmade.social/tags/Sticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sticker</span></a> <a href="https://handmade.social/tags/LaptopSticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LaptopSticker</span></a> <a href="https://handmade.social/tags/Stickers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stickers</span></a> <a href="https://handmade.social/tags/Etsy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Etsy</span></a> <a href="https://handmade.social/tags/EtsyShop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EtsyShop</span></a> <a href="https://handmade.social/tags/MadeByMe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MadeByMe</span></a> <a href="https://handmade.social/tags/Homemade" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Homemade</span></a> <a href="https://handmade.social/tags/HelloIm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HelloIm</span></a> <a href="https://handmade.social/tags/Hello" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hello</span></a> <a href="https://handmade.social/tags/HelloSticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HelloSticker</span></a> <a href="https://handmade.social/tags/NameBadge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NameBadge</span></a> <a href="https://handmade.social/tags/NameSticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NameSticker</span></a></p>
Sam<p>Hey, <a href="https://social.lol/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a>, <a href="https://social.lol/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a> and <a href="https://social.lol/tags/Developers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Developers</span></a> in general: what laptop would you recommend to a new hire as a business laptop?</p><p>It's highly appreciated that it works with Linux, but Mac it's also considered.</p>
Paradox Fox<p>✨ New stickers! ✨ </p><p>For all you pager-carriers we now have an "Oncallax" sticker featuring a Snorlax handling an on-call shift! 😆 </p><p>:etsy: <a href="https://paradoxfoxuk.etsy.com/listing/1885633237" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">paradoxfoxuk.etsy.com/listing/</span><span class="invisible">1885633237</span></a></p><p><a href="https://handmade.social/tags/DeveloperLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DeveloperLife</span></a> <a href="https://handmade.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a> <a href="https://handmade.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://handmade.social/tags/OnCall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OnCall</span></a> <a href="https://handmade.social/tags/TechHumor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TechHumor</span></a> <a href="https://handmade.social/tags/Sticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sticker</span></a> <a href="https://handmade.social/tags/LaptopSticker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LaptopSticker</span></a> <a href="https://handmade.social/tags/Stickers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stickers</span></a> <a href="https://handmade.social/tags/Etsy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Etsy</span></a> <a href="https://handmade.social/tags/EtsyShop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EtsyShop</span></a> <a href="https://handmade.social/tags/MadeByMe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MadeByMe</span></a> <a href="https://handmade.social/tags/Homemade" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Homemade</span></a> <a href="https://handmade.social/tags/Pokemon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pokemon</span></a> <a href="https://handmade.social/tags/Snorlax" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Snorlax</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 7, The Domain Name System, Part III</p><p>In this video, we try to wrap up our discussion of the Domain Name System by addressing the nature of the root nameservers, looking at various different resource record types, observing reverse lookups, and thinking about how we can have assurance of authenticity and integrity of the <a href="https://mstdn.social/tags/DNS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DNS</span></a> results returned to us via <a href="https://mstdn.social/tags/DNSSEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DNSSEC</span></a>.</p><p><a href="https://youtu.be/XDJEJFVNoko" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/XDJEJFVNoko</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Thomas Wodarek<p>I was laid off on Monday. Going to miss that team fiercely and I wish them all the best!</p><p>Anyone looking for a remote infra software eng/ <a href="https://hachyderm.io/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>devops</span></a> who likes working on platforms? I've most recently worked with <a href="https://hachyderm.io/tags/kubernetes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>kubernetes</span></a>, <a href="https://hachyderm.io/tags/terraform" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>terraform</span></a>, <a href="https://hachyderm.io/tags/golang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>golang</span></a>, and <a href="https://hachyderm.io/tags/puppet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>puppet</span></a> , in a <a href="https://hachyderm.io/tags/hybrid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hybrid</span></a> environment between <a href="https://hachyderm.io/tags/onprem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>onprem</span></a> and <a href="https://hachyderm.io/tags/cloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cloud</span></a> <a href="https://hachyderm.io/tags/infrastructure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>infrastructure</span></a> , spanning 4 continents. I've built out and maintained clusters throughout their lifecycles, architected and built out tooling and automation, and integrated with service-owning teams, all to ship reliable and secure products to market.</p><p><a href="https://hachyderm.io/tags/FediHire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FediHire</span></a> <a href="https://hachyderm.io/tags/fedihired" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fedihired</span></a> <a href="https://hachyderm.io/tags/softwareengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>softwareengineering</span></a> <a href="https://hachyderm.io/tags/openforremotework" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openforremotework</span></a> <a href="https://hachyderm.io/tags/openforwork" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openforwork</span></a> <a href="https://hachyderm.io/tags/remotework" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>remotework</span></a> <a href="https://hachyderm.io/tags/reliability" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reliability</span></a> <a href="https://hachyderm.io/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sre</span></a> <a href="https://hachyderm.io/tags/swe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>swe</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 7, The Domain Name System, Part II</p><p>In this video, we dissect <a href="https://mstdn.social/tags/DNS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DNS</span></a> lookups performed on our EC2 instance, then discuss just how a caching resolver performs the lookup before we turn our instance into such a resolver.</p><p><a href="https://youtu.be/z55ULZcKP8A" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/z55ULZcKP8A</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Thomas Fricke (he/him)<p><a href="https://23.social/tags/Microsoft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Microsoft</span></a> Warns of Chinese Hackers Spying on <a href="https://23.social/tags/Cloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cloud</span></a> Technology</p><p><a href="https://www.msn.com/en-us/money/other/microsoft-warns-of-chinese-hackers-spying-on-cloud-technology/ar-AA1AiU3C" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">msn.com/en-us/money/other/micr</span><span class="invisible">osoft-warns-of-chinese-hackers-spying-on-cloud-technology/ar-AA1AiU3C</span></a></p><p>Dublin <a href="https://23.social/tags/srecon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>srecon2024</span></a> <a href="https://23.social/tags/sreconemea24" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sreconemea24</span></a> <a href="https://23.social/tags/srecon24" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>srecon24</span></a> </p><p>Private communication with some Azure <a href="https://23.social/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sre</span></a> :</p><p>We have <a href="https://23.social/tags/aptgroup" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aptgroup</span></a> s 💀😈in our cloud ☁️ <br>but they are under control👀?</p><p>Me: <a href="https://23.social/tags/wtf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wtf</span></a> really 😱</p><p><a href="https://23.social/tags/38c3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>38c3</span></a> cloud <a href="https://23.social/tags/IAM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IAM</span></a> Identity and Access Management has been outsourced to <a href="https://23.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a> <a href="https://media.ccc.de/v/38c3-from-simulation-to-tenant-takeover" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">media.ccc.de/v/38c3-from-simul</span><span class="invisible">ation-to-tenant-takeover</span></a></p><p>You don't need to break into a house when you get the key from the owner.</p>
Jan Schaumann<p>System Administration</p><p>Week 7, The Domain Name System, Part I</p><p>In this video, we are beginning our discussion of the <a href="https://mstdn.social/tags/DNS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DNS</span></a>, the Domain Name System. We go back to the early days of the internet when copying /etc/hosts from system to system was the way to resolve hosts, and we cover the structure of the domain name space and the creation of the top-level domains.</p><p><a href="https://youtu.be/-bpIT7M9i00" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/-bpIT7M9i00</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Mauricio Teixeira 🇺🇸🇧🇷<p>Hey folks! If you are an experienced GO developer, there's a US remote job position open in one of the teams that work directly with me! This is a great opportunity to develop apps for our internal infrastructure that keep all the Blizzard games up and running. I've been having a great time at the company, and I can tell you for sure it comes with many perks. You work hard, and play hard!</p><p>Feel free to reach out to me in private if you would like a referral.</p><p><a href="https://hachyderm.io/tags/Remote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Remote</span></a> <a href="https://hachyderm.io/tags/RemoteWork" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RemoteWork</span></a> <a href="https://hachyderm.io/tags/RemoteJobs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RemoteJobs</span></a> <a href="https://hachyderm.io/tags/Go" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Go</span></a> <a href="https://hachyderm.io/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a> <a href="https://hachyderm.io/tags/Cloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cloud</span></a> <a href="https://hachyderm.io/tags/CloudComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CloudComputing</span></a> <a href="https://hachyderm.io/tags/FediHire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FediHire</span></a></p><p><a href="https://careers.blizzard.com/global/en/job/R024862/Senior-Software-Engineer" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">careers.blizzard.com/global/en</span><span class="invisible">/job/R024862/Senior-Software-Engineer</span></a></p>
icco<p>On Friday, I found a service in our infrastructure that had very broken networking configuration. To the level of "there's no way in hell anyone is using this it's so broken". Essentially it's routing configuration was setup so it worked ~60% of the time.</p><p>I just found out it's being used in production by every single user. And it probably can't be fixed without causing an outage.</p><p><a href="https://merveilles.town/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sre</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 6, Networking II: ICMP</p><p>In this video, we demonstrate the use of the Internet Control Message Protocol or ICMP (and its <a href="https://mstdn.social/tags/IPV6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IPV6</span></a> equivalent ICMP6) by tracing and analyzing ping(1) and traceroute(1) invocations.</p><p><a href="https://youtu.be/JQn8PgfZ68M" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/JQn8PgfZ68M</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 6, Networking II: ARP and NDP</p><p>In this video, we illustrate the functionality of the Address Resolution Protocol (ARP) and it's <a href="https://mstdn.social/tags/IPv6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IPv6</span></a> equivalent, the Neighbor Discovery Protocol (NDP).</p><p><a href="https://youtu.be/1gtkpbF_h6M" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/1gtkpbF_h6M</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 6, Networking II: A simple request II</p><p>In this video, we pick up our tcpdump output collected in the previous video and begin to analyze the packets we find in there. We observe our AWS instance being scanned by some random host on the internet, see the ARP requests and replies, our DNS query, and the TCP packets for our HTTP request, yielding an illustration how a simple request causes traffic across multiple layers.</p><p><a href="https://youtu.be/UDXJSyyp_18" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/UDXJSyyp_18</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 6, Networking II: A simple request</p><p>In this video, we trace a simple HTTP request made via telnet to find out just how exactly our application knows how to connect to the remote server. In the process we learn about the ktrace(1) utility (strace(1) on <a href="https://mstdn.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Linux</span></a>), as well as the nsswitch.conf(5), hosts(5), and resolve.conf(5) configuration files.</p><p><a href="https://youtu.be/mw1YzFSYuwE" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/mw1YzFSYuwE</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 5, Networking I: A Network of Networks</p><p>In this video, we look at how independent networks connect to one another, how Autonomous Systems numbers allow us to identify network operators, and how peering between independent ASs works.</p><p><a href="https://youtu.be/OOq7jGlhBjY" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/OOq7jGlhBjY</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Jan Schaumann<p>System Administration</p><p>Week 5, Networking I: The Physical Internet</p><p>In this video, we look at the physical structure of the internet, with a focus on submarine internet communications cables. Jumping from the bottom of the OSI stack all the way to Layer 9 ("political"), we then discuss how different countries use their political power to enforce internet blocks on their citizens, leading us to warrantless wiretapping in AT&T's room 641A.</p><p><a href="https://youtu.be/4YrHdD1uIxs" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/4YrHdD1uIxs</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
Noah<p>I saw this article a while back about the “Equifax Work Number” and I figured while I was going through freezing my credit, I might as well freeze the work number as well. </p><p>Now, to start off, I don’t know that the info from the work number is a useful attack vector for identity theft, maybe one of my friends in infosec could chime in on that, but I will say that it was disturbing what kind of data a company can collect in a routine background check during the interview and hiring process. </p><p>I grabbed a report from the site and it had most of the jobs I’d worked, all the way back to my first job in high school working for Waldenbooks. What was interesting was that it also had my title as well as my pay at each job. I rolled that one around in my head a bit and the longer I thought about that the more annoyed I became.</p><p>As of this year I’ve been in some flavor of <a href="https://10base2.dev/tags/engineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>engineering</span></a>, <a href="https://10base2.dev/tags/it" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>it</span></a>, <a href="https://10base2.dev/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>devops</span></a>, or <a href="https://10base2.dev/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sre</span></a> for 25 years. When I interview for a job, part of the privilege that comes with those 25 years is the ability to say “this is how much I’m willing to work for in order to do this job” and many companies will pay that if you’re who they want and you’re still in the range they’re willing or able to afford.</p><p>Junior folks in <a href="https://10base2.dev/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tech</span></a> when negotiating <a href="https://10base2.dev/tags/salary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>salary</span></a>, I could *easily* see this screwing them over. “Ah yes, I see you have three years of Python programming experience, but now I know that you only got paid $15 per hour for that in your last job so this position you’re interested in now magically pays $40K a year instead of the $75K we originally thought we would have to pay.” </p><p>And maybe that’s just pure speculation, pessimism, and the jadedness that comes from working in tech for 25 years. I’m curious if folks have any experience into that work information playing into their salary negotiations and/or if anyone has experience with going through an interview process with their work experience frozen from being queried without their express consent and if that kept them from being offered a job. I know it can impact things like applying for a credit card or financial assistance but I was interested in hearing personal experience with this.</p>
Jan Schaumann<p>System Administration</p><p>Week 5, Networking I: IP Allocation & IPv4 Exhaustion</p><p>Mommy, where do IP addresses come from? We discuss how IANA allocates IP addresses to the Regional Internet Registries and try to illustrate just how large the <a href="https://mstdn.social/tags/IPv6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IPv6</span></a> address space is.</p><p><a href="https://youtu.be/r2GXh8uUgWc" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/r2GXh8uUgWc</span><span class="invisible"></span></a></p><p><a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DevOps</span></a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SRE</span></a></p>
SearchLive feeds
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.
LoginDrag & drop to upload