Syslog - Revision history

WhyNotHugo: Move other distributions further down

2025-12-05T23:15:54Z

Move other distributions further down

← Older revision		Revision as of 23:15, 5 December 2025
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	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation ~~(similar to <code>journald</code> on systemd-based systems)~~. Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}}, [https://skarnet.org/software/s6/s6-socklog.html s6-socklog] (from {{pkg\|s6}}) and [[logbookd]].		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation. Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}}, [https://skarnet.org/software/s6/s6-socklog.html s6-socklog] (from {{pkg\|s6}}) and [[logbookd]]. This role is typically fulfilled by <code>journald</code> on systemd-based systems.

	== busybox syslog ==		== busybox syslog ==

WhyNotHugo: Mention s6-socklog

2025-09-03T12:55:36Z

Mention s6-socklog

← Older revision		Revision as of 12:55, 3 September 2025
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	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}} and [[logbookd]].		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}}, [https://skarnet.org/software/s6/s6-socklog.html s6-socklog] (from {{pkg\|s6}}) and [[logbookd]].

	== busybox syslog ==		== busybox syslog ==

Sertonix: Move 'Writing logs' out of busybox syslog section

2024-02-29T10:53:17Z

Move 'Writing logs' out of busybox syslog section

← Older revision		Revision as of 10:53, 29 February 2024
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	</nowiki>}}		</nowiki>}}

	=== Writing logs ===		== Writing logs ==
	Many applications are able to write to the syslog by default (e.g. <code>sshd</code>). If you wish to write manually to it, use the <code>logger</code> program.		Many applications are able to write to the syslog by default (e.g. <code>sshd</code>). If you wish to write manually to it, use the <code>logger</code> program.

WhyNotHugo: Typo

2024-02-24T11:07:35Z

Typo

← Older revision		Revision as of 11:07, 24 February 2024
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	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}} and [[logbookd].		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}} and [[logbookd]].

	== busybox syslog ==		== busybox syslog ==

WhyNotHugo: Mention logbookd

2024-02-24T11:07:26Z

Mention logbookd

← Older revision		Revision as of 11:07, 24 February 2024
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	{{TOC right}}		{{TOC right}}

	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}} ~~and~~ {{pkg\|syslog-ng}}.		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}}, {{pkg\|syslog-ng}} and [[logbookd].

	== busybox syslog ==		== busybox syslog ==

Sertonix: link gentoo wiki

2023-10-27T20:39:22Z

link gentoo wiki

← Older revision		Revision as of 20:39, 27 October 2023
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	{{cmd\|$ logger "hello world"}}		{{cmd\|$ logger "hello world"}}

			== See also ==
			* [https://wiki.gentoo.org/wiki/Logging Gentoo Wiki - Logging]

	[[category:System Administration]]		[[category:System Administration]]

Sertonix: use cmd & pkg template

2023-09-22T09:23:26Z

use cmd & pkg template

← Older revision		Revision as of 09:23, 22 September 2023
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	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by ~~<code>~~busybox~~</code>~~ per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as ~~<code>~~rsyslog~~</code>~~ and ~~<code>~~syslog-ng~~</code>~~.		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by {{pkg\|busybox}} per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as {{pkg\|rsyslog}} and {{pkg\|syslog-ng}}.

	== busybox syslog ==		== busybox syslog ==
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	Depending on how you have installed Alpine, it is already running (check with <code>ps a \| grep syslogd</code>). Otherwise enable it at boot and start it with the following commands:		Depending on how you have installed Alpine, it is already running (check with <code>ps a \| grep syslogd</code>). Otherwise enable it at boot and start it with the following commands:

	<~~pre~~>		{{cmd\|<nowiki># rc-update add syslog boot
	# rc-update add syslog boot
	# rc-service syslog start		# rc-service syslog start
	</~~pre~~>		</nowiki>}}

	=== Configuration ===		=== Configuration ===
	Edit ~~<code>~~/etc/conf.d/syslog~~</code>~~ to change the options used when running <code>syslogd</code>. All available options can be looked up with <code>syslogd --help</code>.		Edit {{path\|/etc/conf.d/syslog}} to change the options used when running <code>syslogd</code>. All available options can be looked up with <code>syslogd --help</code>.

	=== Reading logs ===		=== Reading logs ===
	<~~pre~~>		{{cmd\|<nowiki># tail -f /var/log/messages
	# tail -f /var/log/messages
	Shows all messages and follows the log		Shows all messages and follows the log
	# tail -f /var/log/messages \| grep ssh		# tail -f /var/log/messages \| grep ssh
	Only shows SSH related messages, also follows the log		Only shows SSH related messages, also follows the log
	</~~pre~~>		</nowiki>}}

	When <code>-C</code> is enabled in the configuration:		When <code>-C</code> is enabled in the configuration:
	<~~pre~~>		{{cmd\|<nowiki># logread -f
	# logread -f
	# logread -f \| grep ssh		# logread -f \| grep ssh
	</~~pre~~>		</nowiki>}}

	=== Writing logs ===		=== Writing logs ===
	Many applications are able to write to the syslog by default (e.g. <code>sshd</code>). If you wish to write manually to it, use the <code>logger</code> program.		Many applications are able to write to the syslog by default (e.g. <code>sshd</code>). If you wish to write manually to it, use the <code>logger</code> program.

	~~<pre>~~		{{cmd\|$ logger "hello world"}}
	$ logger "hello world"
	~~</pre>~~


	[[category:System Administration]]		[[category:System Administration]]

Fabricionaweb: fix syslog config file - files under /etc/conf.d no longer use extension

2023-05-28T11:19:30Z

fix syslog config file - files under /etc/conf.d no longer use extension

← Older revision		Revision as of 11:19, 28 May 2023
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	=== Configuration ===		=== Configuration ===
	Edit <code>/etc/conf.d/syslog~~.cfg~~</code> to change the options used when running <code>syslogd</code>. All available options can be looked up with <code>syslogd --help</code>.		Edit <code>/etc/conf.d/syslog</code> to change the options used when running <code>syslogd</code>. All available options can be looked up with <code>syslogd --help</code>.

	=== Reading logs ===		=== Reading logs ===

Innsill: +category:System Administration

2019-09-14T12:07:56Z

+category:System Administration

← Older revision		Revision as of 12:07, 14 September 2019
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			{{TOC right}}

	Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by <code>busybox</code> per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as <code>rsyslog</code> and <code>syslog-ng</code>.		Syslog collects log data from multiple programs either to RAM or to a file, and handles log rotation (similar to <code>journald</code> on systemd-based systems). Alpine installs <code>syslog</code> as provided by <code>busybox</code> per default, but it also packages [https://pkgs.alpinelinux.org/packages?name=syslog other implementations], such as <code>rsyslog</code> and <code>syslog-ng</code>.

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	$ logger "hello world"		$ logger "hello world"
	</pre>		</pre>


			[[category:System Administration]]

Ollieparanoid: /* Reading logs */ fix logread command example

2017-10-18T18:45:39Z

Reading logs: fix logread command example

← Older revision		Revision as of 18:45, 18 October 2017
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	When <code>-C</code> is enabled in the configuration:		When <code>-C</code> is enabled in the configuration:
	<pre>		<pre>
	# logread -f ~~/var/log/messages~~		# logread -f
	# logread -f ~~/var/log/messages~~ \| grep ssh		# logread -f \| grep ssh
	</pre>		</pre>