• Linux
• Systemd

Linux systemd startup and process monitoring

• Links systemd bootup flow

• User startup scripts in
  1. $ ls /etc/systemd/system/
  2. $

Test new systemd unit file .e.g. azure-swapfile.service

• systemd-analyze verify azure-swapfile.service

View process logs with jounalctl

• Links digitalocean

• Set timezone for log display using
  • $ timedatectl list-timezones
  • $ sudo timedatectl set-timezone zone
  • $ timedatectl status
  • only logs for current boot / since last reboot
    • $ journalctl -b
    • $ journalctl --list-boots
    • $ journalctl --since "2015-01-10" --until "2015-01-11 03:00"
    • $ journalctl --since 09:00 --until "1 hour ago"
  • journalctl -u nginx.service -u php-fpm.service --since today

Refresh filesystems after updating /etc/fstab

• # systemctl daemon-reload
• # systemctl restart remote-fs.target
• # systemctl restart local-fs.target

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