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ยฉ 2025 - 2026 Nat Welch. All rights reserved.

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Wandering Thoughts

@chris_siebenmann@robot.villas

Unix, system administration, networking, and the practical details of running infrastructure.

Source: https://utcc.utoronto.ca/~cks/space/blog/?atom

Homepage: https://utcc.utoronto.ca/~cks/space/blog/

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Posts
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Posts

  • An unusual way for your DHCP server to run out of dynamic IPs #SysAdmin #Networking #Tech

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    Jul 10, 2026
  • BMCs and a surprising USB network device on your server #Tech #Networking #SysAdmin

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    Jul 9, 2026
  • Notes on pulling from multiple upstream Git mirrors #Git #DevOps #Programming

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    Jul 8, 2026
  • Our mixed building network wiring and its consequences #Sysadmin #Networking #Infrastructure

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    Jul 7, 2026
  • Using Linux <code>tc</code> to limit the outgoing bandwidth of a web server #Linux #Networking #SysAdmin

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    Jul 7, 2026
  • Sometimes it actually is the network: a war story #SysAdmin #Networking #Troubleshooting

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    Jul 6, 2026
  • What buffer size (OpenSSH) <code>ssh</code> seems to use for streaming output #Sysadmin #OpenSSH #Networking

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    Jul 4, 2026
  • Go maps, hashes of map keys, and pointers: a little surprise #Programming #GoLang #ComputerScience

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    Jul 4, 2026
  • Discovering rsync's -W option and our use for it #SysAdmin #Rsync #Tech

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    Jul 3, 2026
  • I'm only interested in "native" installation systems #SysAdmin #Software #Tech

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    Jul 2, 2026
  • Our long path from IPMI remote installs to network installs #SysAdmin #Networking #Infrastructure

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    Jul 1, 2026
  • As expected, using kexec to switch to a new Ubuntu kernel works #Linux #SystemAdministration #OpenSource

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    Jun 30, 2026
  • There's a plague of Googlebot impersonation going on (in June 2026) #Tech #Security #Networking

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    Jun 29, 2026
  • Go interfaces, reflection, and binary size #Programming #GoLang #SoftwareEngineering

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    Jun 28, 2026
  • How your Ubuntu 26.04 server boots with a software RAID array root filesystem #Linux #SysAdmin #OpenSource

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    Jun 27, 2026
  • You can't always trust a BMC's inventory of the server's hardware #SysAdmin #Hardware #Networking

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    Jun 26, 2026
  • Some things on '<code>systemctl kexec</code>' as compared to '<code>kexec -e</code>' #Linux #SystemAdministration #Tech

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    Jun 25, 2026
  • Two versions of a 'is SSH up on a machine' check #Sysadmin #Networking #SSH

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    Jun 24, 2026
  • The quiet issue of lurking settings (and how it bit me) #SysAdmin #Networking #Infrastructure

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    Jun 23, 2026
  • Configuration is a liability, just like code #SysAdmin #DevOps #Infrastructure

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    Jun 22, 2026
  • PyPy and Python 3 for us #Python #PyPy #Programming

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    Jun 21, 2026
  • Limiting web server bandwidth the brute force way #SystemAdministration #Networking #WebServers

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    Jun 20, 2026
  • Some reasons why your server may not be doing a UEFI network boot #Sysadmin #Networking #UEFI

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    Jun 19, 2026
  • How to correctly not wait for network carrier in Netplan #Linux #SysAdmin #Networking

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    Jun 18, 2026
  • Why servers running Ubuntu can stall on boot for two minutes #Linux #Networking #SysAdmin

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    Jun 17, 2026
  • What the new Linux NFS mount option 'fatal_neterrors' is #Linux #NFS #SysAdmin

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    Jun 16, 2026
  • Systemd-resolved and sticking (or not) to what distributions do #Linux #Systemd #SysAdmin

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    Jun 15, 2026
  • Linux distribution packaging and third party 'package' systems #Linux #SystemAdministration #OpenSource

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    Jun 14, 2026
  • Running a modern email system requires non-trivial staff time #SysAdmin #Email #Infrastructure

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    Jun 13, 2026
  • Why disk warranties are useful at work but not for me at home #Tech #Hardware #Storage

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    Jun 12, 2026
  • My Firefox addons as of Firefox 151 (and the current development version) #Tech #WebDev #OpenSource

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    Jun 10, 2026
  • Making extensions work on file: URLs in Firefox 153 #Tech #WebDev #OpenSource

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    Jun 10, 2026
  • Understanding Embark in GNU Emacs (a bit) and some 'stupid' Embark tricks #Emacs #Programming #OpenSource

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    Jun 9, 2026
  • Should we care any more about Googlebot crawling our sites? #WebCrawling #SEO #SysAdmin

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    Jun 8, 2026
  • 'Vim' has many faces #Vim #TextEditor #Programming

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    Jun 7, 2026
  • It seems unlikely that I'll have basic ARM servers to deal with #Tech #SystemAdministration #ARM

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    Jun 5, 2026
  • The Emacs packages that I use (as of June 2026) #Emacs #Programming #Software

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    Jun 4, 2026
  • My GNU Emacs completion setup (as of June 2026) #Emacs #Programming #OpenSource

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    Jun 3, 2026
  • A wish for automatic or semi-automatic disk setup in Linux server installers #Linux #SysAdmin #Automation

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    Jun 3, 2026
  • When <code>su</code> replaced <code>login</code> for becoming another Unix login #Unix #SystemAdministration #Tech

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    Jun 2, 2026
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