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 You'll get clearer output and better performance than with the outdated `netstat`.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

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

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

Linux tip: strace -e trace=file program traces only file-related system calls. Add -o output.txt to save results. Reveals which config files, libraries, or data files your program actually accesses. #Linux#SystemAdministration#SysAdmin

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

Did you know FreeBSD includes a built-in utility for scheduling routine maintenance tasks?

From daily security checks to system cleanup jobs, the periodic system helps keep things running smoothly — and it’s easy to customize.

Learn how to use existing periodic scripts and integrate your own in our latest blog:

https://freebsdfoundation.org/blog/an-introduction-to-freebsds-periodic-system/

#FreeBSD#SystemAdministration#OpenSource#Automation#TechTools

Did you know FreeBSD includes a built-in utility for scheduling routine maintenance tasks?

From daily security checks to system cleanup jobs, the periodic system helps keep things running smoothly — and it’s easy to customize.

Learn how to use existing periodic scripts and integrate your own in our latest blog:

https://freebsdfoundation.org/blog/an-introduction-to-freebsds-periodic-system/

#FreeBSD#SystemAdministration#OpenSource#Automation#TechTools

Interesting read: "Everything You Should Know About Being a Linux Sysadmin, But Probably Don’t"

https://linuxexpert.org/everything-you-should-know-about-being-a-linux-sysadmin-but-probably-dont/

#fun #systemadministration

Linux tip: strace -e trace=file program traces only file-related system calls. Add -o output.txt to save results. Reveals which config files, libraries, or data files your program actually accesses. #Linux#SystemAdministration#SysAdmin

We're live!

DevOps/SRE Live Stream

#owncast #streaming #linux #ruby #sysadmin #systemadministration #unix #devops #development #livecoding #codestream #tech

https://live.monospacementor.com

We're live!

DevOps/SRE Live Stream

#owncast #streaming #linux #ruby #sysadmin #systemadministration #unix #devops #development #livecoding #codestream #tech

https://live.monospacementor.com