= logs.htmlSystem log component[[api-logs-html-description]]== Description....<iframe src="http://127.0.0.1:9090/cockpit+app/@localhost/system/logs.html"width="600" height="400"></iframe>....This is a Cockpit component that brings up system log viewer, withfiltering capabilities. On systemd based systems this displays theentries from journal.Component URL::`+/cockpit+app/@localhost/system/logs.html+`Filter by priority::`+#?prio=notice+` ++Filters the log to show entries below the specific priority,inclusive. Thesehttps://en.wikipedia.org/wiki/Syslog#Severity_levels[priorities aresyslog level keywords]. Specifying `+*+` as a priority will show allavailable entries. The default priority is `+err+`.Filter by service::`+#?service=sshd.service+` ++Filters the log to show entries related to the specific service. Theformat of the service is specific to the logging implementation. Forjournald these are systemd service unit names.Filter by tag::`+#?tag=kernel+` ++Filters the log to show entries related to the specific syslogidentifier.Filter by message::`+#?grep=+` ++Filters the log to show entries where the `+MESSAGE=+` field matchesthe specified regular expression. PERL-compatible regular expressionsare used. If the pattern is all lowercase, matching is caseinsensitive. Otherwise, matching is case sensitive.Filter by any field::`+#?FIELD=VALUE+` ++A field is referring to the components of a structured journal entry.The match must be exact. Value can be comma separated list in whichcase they are automatically matched as alternatives.Start at point::`+#?start=boot+` ++Filters the log to show entries after the specific point in time.Valid values are `+boot+` (since last boot), `+last-24h+` (last 24hours), `+last-week+` (last seven days) and `+previous-boot+`(previous boot).Follow the journal::`+#?follow=true+` ++Keep listening on new entries. Valid values are `+true+` (follow) and`+false+` (do not follow).Show log entry::`+#/6e272d82993c4e0d...+` ++To show a specific log entry, put the log entry cursor in a path afterthe hash above. Note that cursors are logging system specific, andjournal cursors are subject to change.