Difference between revisions of "Systemd"
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↑ https://www.freedesktop.org/wiki/Software/systemd/inhibit/
↑ http://manpages.ubuntu.com/manpages/bionic/man1/systemd-inhibit.1.html
↑ https://www.freedesktop.org/software/systemd/man/systemd.mount.html
↑ https://wiki.ubuntu.com/DebuggingSystemd
↑ https://wiki.ubuntu.com/DebuggingSystemd
Line 8: | Line 8: | ||
* [[resource management]] | * [[resource management]] | ||
− | + | == Configuration files == | |
* <code>[[/etc/]]systemd/[[logind.conf]]</code> | * <code>[[/etc/]]systemd/[[logind.conf]]</code> | ||
− | |||
* <code>[[/etc/]]systemd/[[system.conf]]</code> | * <code>[[/etc/]]systemd/[[system.conf]]</code> | ||
− | |||
* <code>[[/etc/]]systemd/[[resolved.conf]]</code> | * <code>[[/etc/]]systemd/[[resolved.conf]]</code> | ||
Revision as of 10:36, 5 May 2021
systemd is a Linux initialization system and service manager introduced in 2010 and adopted by default in RHEL 7.0 (2014), that includes features like:
- On-demand starting of daemons
- Inhibitor Locks which allows to block or delay system sleep and shutdown requests from the user [1][2]
- Mount and automount point maintenance (
systemd-mount
[3],systemd-umount
) - Snapshot support
- Processes tracking using Linux control groups (
systemd-cgls
systemd-cgtop
) - Logging daemon, see
journalctl
andsystemd-cat
- resource management
Configuration files
Systemd components of daemons and binaries[4]:
- systemd:
systemctl
- systemd-journald:
journalctl
- systemd-logind:
loginctl
- systemd-networkd:
networkctl
, netplan - systemd-timesyncd
- systemd-resolved: systemd-resolve,
hostnamectl
- systemd-udevd
- systemd-nspawn
/lib/systemd/systemd-fsck
Activities
- Read systemd for Administrators: http://0pointer.de/blog/projects/resources.html
- Read systemd v228 local root exploit https://lwn.net/Articles/712367/
Related commands
systemd-tmpfiles --create
See also
- Systemd:
systemctl
,systemd-journald
,journalctl
systemd-cat
,systemd-logind
,systemd-networkd
:networkctl
,systemd-timesyncd
,systemd-resolved
,systemd-udevd
[5],Systemd-logind: loginctl
,hostnamectl
,udevadm
,systemd-run
,portablectl
,systemd-nspawn
, systemd resource management, Timer (systemd), systemd logs,/etc/systemd/
, systemd services,systemd-mount
,/run/systemd/
,.service
,/usr/lib/systemd/
,/usr/lib/systemd/system/
,/usr/lib/systemd/system/systemd-resolved.service
,/lib/systemd/
, machinectl, systemd-oomd, systemd-analyze - macOS:
launctl
- systemd, daemontools, runit and https://en.wikipedia.org/wiki/Process_supervision
systemd
,runsv
cron
,crontab
,systemctl list-timers
, anacron, Kubernetes scheduler, Systemd services,CronJobsStack
,cron.schedule
,crontab -l
,0x004b
,at, /etc/cron.deny, /etc/cron.allow, /etc/crontab, /var/spool/cron/crontabs/
- elogind
- /run/systemd/
- init (
inittab
), supervisor, systemd, upstart,service
,chkconfig
, OpenRC, s6-svstat
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