cleanup
This commit is contained in:
parent
30d08edad9
commit
2411171084
@ -1,61 +0,0 @@
|
||||
---
|
||||
title: "logs"
|
||||
tags: [ "Documentation", "basics" ]
|
||||
---
|
||||
## Syslog Management Protocols
|
||||
|
||||
Let's look at the programs filling in things on our /var/log/ directory.
|
||||
|
||||
* rsyslog (common)
|
||||
|
||||
* syslog (old)
|
||||
|
||||
* syslog-ng (lots of content-based filtering)
|
||||
|
||||
* klogd (kernel-focussed)
|
||||
|
||||
# `rsyslog`
|
||||
|
||||
The config rests in /etc/rsyslog.conf, which then references /etc/rsyslog.d/.
|
||||
|
||||
# Systemd
|
||||
This thing makes its own logs with journald, and the journal's own logging system writes to /var/log/journal/ directory, which is then filled with nonsense.
|
||||
|
||||
You can obtain nonsense in systemd's own format by entering:
|
||||
|
||||
journalctl -e
|
||||
|
||||
This thing generates so much nonsense it can crash your system, but can at least be checked with:
|
||||
|
||||
> journalctl --disk-usage
|
||||
|
||||
... in case you can't remember the `du` command.
|
||||
|
||||
You can limit the nonsense by editing the /etc/systemd/journald.conf file, and finding `#SystemMaxFileSize=`
|
||||
|
||||
# Logger
|
||||
|
||||
You can log things at any time with the logger:
|
||||
|
||||
> logger Server is being a dick!
|
||||
|
||||
Put things into a specific log with `-p`. They can enter into, e.g., lpr (printer) log file with a priority of "critical", with:
|
||||
|
||||
> logger -p lpr.crit Help!
|
||||
|
||||
Logfiles rotate around and eventually get deleted. Rotation means they get compressed.
|
||||
|
||||
Edit the config in /etc/logrotate.conf.
|
||||
|
||||
A few apps have their own special log rotation rules, kept in /etc/logrotate.d/.
|
||||
|
||||
The major variables to change are `weekly`, which compresses log files weekly, and `rotate 4`, which keeps 4 weeks worth of backlogs before deletion.
|
||||
|
||||
# Force Log Rotation
|
||||
|
||||
> sudo systemctl kill --kill-who=main --signal=SIGUSR2 systemd-journald.service
|
||||
|
||||
or just
|
||||
|
||||
> sudo systemctl restart systemd-journald.service
|
||||
|
@ -1,16 +0,0 @@
|
||||
---
|
||||
title: "keymaps"
|
||||
tags: [ "Documentation", "hardware" ]
|
||||
---
|
||||
Find easy-to-read keymapping lists in `/usr/share/X11/xkb/keycodes/symbols/pc`.
|
||||
|
||||
If this doesn't work, try keymaps.
|
||||
|
||||
Keymaps codes can be found in `/usr/share/X11/xkb/keycodes/evdev`.
|
||||
Swap the numbers to swap symbols.
|
||||
|
||||
Check keymap with:
|
||||
|
||||
> setxkbmap -print -verbose 10
|
||||
|
||||
|
@ -1,6 +1,6 @@
|
||||
---
|
||||
title: "basics"
|
||||
tags: [ "Documentation", "system" ]
|
||||
title: "systemd"
|
||||
tags: [ "Documentation", "systemd" ]
|
||||
---
|
||||
> systemctl list-units
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user