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Difference between revisions of "System Administrators Checklist"

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(add numbered list)
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# firewall with ufw
 
# firewall with ufw
 
# postgresql replication (backup)
 
# postgresql replication (backup)
 +
# scheduled backups (rsync and cron)
 
# lxc container (setup services on your local machine)
 
# lxc container (setup services on your local machine)
 
# sharing passwords with gpg encrypted files
 
# sharing passwords with gpg encrypted files
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# environment variables
 
# environment variables
 
# local network configuration (/etc/hosts, ip, ss).
 
# local network configuration (/etc/hosts, ip, ss).
 +
# Starting and stopping services (systemctl)
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# Log file handling (tail -f, truncate, logrotate)
  
 
== Switching users ==
 
== Switching users ==

Revision as of 16:19, 13 December 2020

Pre-Requisites (you need to learn yourself)

  1. How to install GNU/Linux
  2. Familiarity with Command Line
  3. disk partitioning with logical volume manager
  4. authenticating with ssh keys

Server basics (we will teach you)

  1. switching users (sudo, su)
  2. remote access (scp, rsync, custom ssh port, mosh),
  3. software raid
  4. encrypted partitions/luks (using virtual machines)
  5. firewall with ufw
  6. postgresql replication (backup)
  7. scheduled backups (rsync and cron)
  8. lxc container (setup services on your local machine)
  9. sharing passwords with gpg encrypted files
  10. nginx basics (setup web server, add custom index page)
  11. screen/tmux/nohup
  12. symbolic links (ln -s)
  13. locales
  14. environment variables
  15. local network configuration (/etc/hosts, ip, ss).
  16. Starting and stopping services (systemctl)
  17. Log file handling (tail -f, truncate, logrotate)

Switching users

sudo or su commands can be used to run commands as different users. `sudo -u <username>` for running as different user. `su - postgres` can give you a shell as postgres user.

Remote access to machines

  1. . ssh - remote shell (with ssh server on custom ports)
  2. . scp/sftp/rsync - copy files
  3. . mosh - for bad connections

Symbolic links

Symbolic links can be used to store data in data partition without changing configuration files. For example /var/lib/postgresql can be a symbolic link to /data/postgresql where /data is a dedicated partition for storing data.

Setup correct Locales

`dpkg-reconfigure locales`