> For the complete documentation index, see [llms.txt](https://docs.arkannis.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkannis.net/os/linux.md).

# Linux

- [Learning guidelines](https://docs.arkannis.net/os/linux/learning-guidelines.md)
- [LPIC1 Notes](https://docs.arkannis.net/os/linux/learning-guidelines/lpic1-notes.md)
- [Linux Academy Notes](https://docs.arkannis.net/os/linux/learning-guidelines/linux-academy-notes.md)
- [Install / Update Guides](https://docs.arkannis.net/os/linux/install-update-guides.md)
- [Set up Raspberry PI](https://docs.arkannis.net/os/linux/install-update-guides/set-up-raspberry-pi.md)
- [Update Debian 10 (buster) to Debian 11 (bullseye)](https://docs.arkannis.net/os/linux/install-update-guides/update-debian-10-buster-to-debian-11-bullseye.md)
- [Increase disk size](https://docs.arkannis.net/os/linux/increase-disk-size.md)
- [umask](https://docs.arkannis.net/os/linux/umask.md)
- [inodes](https://docs.arkannis.net/os/linux/inodes.md)
- [at jobs](https://docs.arkannis.net/os/linux/at-jobs.md)
- [yum](https://docs.arkannis.net/os/linux/yum.md)
- [yum update vs yum upgrade](https://docs.arkannis.net/os/linux/yum/yum-update-vs-yum-upgrade.md)
- [find](https://docs.arkannis.net/os/linux/find.md)
- [ssh](https://docs.arkannis.net/os/linux/ssh.md)
- [SSH returns: no matching host key type found. Their offer: ssh-rsa](https://docs.arkannis.net/os/linux/ssh/ssh-returns-no-matching-host-key-type-found.-their-offer-ssh-rsa.md)
- [Generate Public Key from Private Key](https://docs.arkannis.net/os/linux/ssh/generate-public-key-from-private-key.md)
- [Run local bash scripts on remote server](https://docs.arkannis.net/os/linux/ssh/run-local-bash-scripts-on-remote-server.md)
- [crontab](https://docs.arkannis.net/os/linux/crontab.md)
- [Crontab 1st Sunday of every Month](https://docs.arkannis.net/os/linux/crontab/crontab-1st-sunday-of-every-month.md)
- [Set crontab to execute after restart](https://docs.arkannis.net/os/linux/crontab/set-crontab-to-execute-after-restart.md)
- [vim](https://docs.arkannis.net/os/linux/vim.md)
- [Use sed inside vim](https://docs.arkannis.net/os/linux/vim/use-sed-inside-vim.md)
- [networking](https://docs.arkannis.net/os/linux/networking.md)
- [Check Port](https://docs.arkannis.net/os/linux/networking/check-port.md)
- [fail2ban](https://docs.arkannis.net/os/linux/fail2ban.md)
- [bashrc](https://docs.arkannis.net/os/linux/bashrc.md)
- [lvm](https://docs.arkannis.net/os/linux/lvm.md)
- [fallocate](https://docs.arkannis.net/os/linux/fallocate.md)
- [Generate dummy file with actual size](https://docs.arkannis.net/os/linux/fallocate/generate-dummy-file-with-actual-size.md)
- [openssl](https://docs.arkannis.net/os/linux/openssl.md)
- [Create Certificate via CNF file](https://docs.arkannis.net/os/linux/openssl/create-certificate-via-cnf-file.md)
- [OpenSSL cert conversion](https://docs.arkannis.net/os/linux/openssl/openssl-cert-conversion.md)