Setting up an Ubuntu Server

• servers dont typically use bluetooth or wifi
• use an ssd for the operating system for quicker response time and booting (doesnt need to be large, only needed for os not actual storage)
• use magnetic disks to store very large files
  • cheaper
• dont overload our server with roles and tasks
• plan ram and storage carfully, so theres enough for the needed tasks
• when we provide services to others we need them to be reliable
  • if you have time, try testing different configurations
  • dont be afraid to rebuild
• should keep on LTS (long term support)
• configure network connections
  • specify static network address
  • provide router address
• serves should have a static ip address, we can also use automatic dhcp
• we can also provide a proxy address or different mirror of ubuntu
• lvm needs to grow, doesnt take up entire disk by default
  • everytime system boots we need to enter password if encrypted
• unattended upgrades
  • happen periodically
  • may conflict with apt currently downloading if locked
  • wont update to new release
• text logs
  • readable
  • easier to use
• binary logs
  • accessed through journalctl
  • managed by systemd-journald
  • not as easy to work with using text based tools
• journalctl -u to specify the unit you want to search
• journalctl -since to see messages since a time frame
• any software that runs on a linux system runs in a process
• processes have a unique id
  • we can see some using ps ux or ps -e
  • ps -ejHf for a tree view
• we use kill -9 <pid>
  • SIGKILL will send a kill signal to a process
• services are programs that run all the time and wait to respond to certain conditions
• some services are externally facing
• systemctl is a way to see our services
• UPS, uninteruptable power supply
  • will notify if the power is cut, and will provide power information
  • safer shutdown
  • check battery capacity, and the shutdown strategy

[!NOTE] I should make my old desktop a server, do that for a fun side project. I have ubuntu already on it so it shouldnt be hard buttt I should reinstall the server version instead