Linux tip: `systemd-analyze blame` shows which services slow down boot time. Use `systemd-analyze critical-chain` to see the dependency chain causing delays. Optimize the real bottlenecks. #Linux #SystemAdministration #SysAdmin

Linux tip: `systemd-analyze blame` shows which services slow down boot time. Use `systemd-analyze critical-chain` to see the dependency chain causing delays. Optimize the real bottlenecks. #Linux #SystemAdministration #SysAdmin

In this installment of Programming By Stealth, @bart explains the history of how Podfeet.com has evolved over the last 20 years, from shared hosting to dedicated web and database servers, and the evolution from Apache as my web server to NGINX + PHP-FPM. Of course I knew a lot of this, but the PHP-FPM part was a complete mystery!

https://pbs.bartificer.net/tidbit16

#SystemAdministration

It has been nagging me a lot, but I finally decided to shut down my Pixelfed server.

There are several reasons. Here are the ones off the top of my mind.

• Pixelfed governance is unclear and its maintenance is spotty and obscure. The project has no clear roadmap and it all feels very off. Even though I was enthusiastic about @PixelfedGlitch, it still seems like this fork is not attracting enough interest and participation to establish a forward-looking plan.
• Beyond governance, I share these concerns.
• I don’t want to maintain a whole instance merely for a single profile—especially after it has been inactive for a long while. Friends and folks who are curious and interested in exploring the Fediverse are welcome to join pan.rent, that is a collective, communal, and cosy instance.
• I am having trouble with the pixelfed_ynh package for YunoHost. PHP dependencies are a mess and services constantly fail. I believe it’s not the fault of YunoHost packaging, but I am no expert, just a feeling. No energy and not worth figuring it out. I tried for a while, I gave up.
• I am generally against the idea of having multiple Fediverse accounts on multiple servers for different uses. Instead, I believe we should improve filtering and sorting posts depending on their type, and having one single account linked to one identity. Overall, Mastodon Glitch Edition does the job for my occasional image and video posting, even if it’s not optimal.
• I want to use the domain https://tmi.pics for a different purpose, probably an Immich server.

Now, a question for all the sysads out there: what are the best practices you recommend before shutting the server down? I have a strong emotional attachment to the ~15 pictures and posts I have on my profile there.

What I am doing, so far:

• saving all Web pages of profiles and posts on the Wayback Machine
• performing and archiving a YunoHost backup of the application
• ?

#Pixelfed #YunoHost #Fediverse #PixelfedAdmin #admin #FediAdmin #sysAd #systemAdministration #sysAdmin

Understanding the bin, sbin, usr/bin, usr/sbin split (2010)

https://lists.busybox.net/pipermail/busybox/2010-December/074114.html

#HackerNews #UnderstandingLinux #Filesystem #UnixBinary #Paths #SystemAdministration

Linux Mint makes troubleshooting easy with two new graphical system administration tools.

Read full details here: https://ostechnix.com/linux-mint-makes-troubleshooting-easy-with-new-system-administration-tools/

#Linuxmint #Troubleshooting #Systemadministration #Linux

Use `ps aux --forest` for a neat process tree view. The parent-child relationships make it easier to find root causes of system load issues or zombie processes.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux #SystemAdministration

Check `ss -tuln` for open ports. Add `| grep :80`, for example, to filter specific services. You'll get clearer output and better performance than with the outdated `netstat`.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux #SystemAdministration #SysAdmin

A brief look at FreeBSD

https://yorickpeterse.com/articles/a-brief-look-at-freebsd/

#HackerNews #FreeBSD #Technology #OpenSource #Unix #SystemAdministration

Linux Mint makes troubleshooting easy with two new graphical system administration tools.

Read full details here: https://ostechnix.com/linux-mint-makes-troubleshooting-easy-with-new-system-administration-tools/

#Linuxmint #Troubleshooting #Systemadministration #Linux

Use `ps aux --forest` for a neat process tree view. The parent-child relationships make it easier to find root causes of system load issues or zombie processes.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux #SystemAdministration

Using email on the same domain on a Ghost installation on YunoHost

https://postcrescita.it is a wonderful #Ghost website curated by @ceci+comrades. It’s hosted on my community #server, powered by @yunohost.

How can I provide them one or more #email addresses using @postcrescita.it, that they can regularly use through a mail client, without compromising Ghost’s (required) email functionality?

Here is the related thread on the YunoHost forum.

#YunoHost #sysAd #systemAdministration #mailServer #help #mastoAiuto #Linux

Using email on the same domain on a Ghost installation on YunoHost

https://postcrescita.it is a wonderful #Ghost website curated by @ceci+comrades. It’s hosted on my community #server, powered by @yunohost.

How can I provide them one or more #email addresses using @postcrescita.it, that they can regularly use through a mail client, without compromising Ghost’s (required) email functionality?

Here is the related thread on the YunoHost forum.

#YunoHost #sysAd #systemAdministration #mailServer #help #mastoAiuto #Linux

Using email on the same domain on a Ghost installation on YunoHost

https://postcrescita.it is a wonderful #Ghost website curated by @ceci+comrades. It’s hosted on my community #server, powered by @yunohost.

How can I provide one or more #email addresses using @postcrescita.it, without compromising Ghost’s (required) email functionality?

Here is the related thread on the YunoHost forum.

#YunoHost #sysAd #systemAdministration #mailServer

Never trust untested backups. With Borgmatic, use borgmatic check --verbosity 2 for repository integrity and borgmatic extract --dry-run to simulate restores. Schedule monthly tests.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux#SystemAdministration

Use setgid on shared directories: chmod g+s /shared/project. New files inherit group ownership, preventing permission chaos when multiple users collaborate.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux#SystemAdministration#SysAdmin

Use setgid on shared directories: chmod g+s /shared/project. New files inherit group ownership, preventing permission chaos when multiple users collaborate.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux#SystemAdministration#SysAdmin

Never trust untested backups. With Borgmatic, use borgmatic check --verbosity 2 for repository integrity and borgmatic extract --dry-run to simulate restores. Schedule monthly tests.

🔗 Learn more in my course: https://monospacementor.com/courses/linsys-1/

#Linux#SystemAdministration

Linux tip: ionice -c 3 command runs a command with idle I/O priority. It only gets disk access when no other processes need it. Perfect for backups or maintenance tasks. #Linux#SystemAdministration#SysAdmin#Performance