Logs⚓︎
+Using logrotate to reduce disk space usage from logs.
+ + + +Find your version of logrotate⚓︎
+ +logrotate 3.19.0
+
+ Default mail command: /usr/bin/mail
+ Default compress command: /bin/gzip
+ Default uncompress command: /bin/gunzip
+ Default compress extension: .gz
+ Default state file path: /var/lib/logrotate/status
+ ACL support: yes
+ SELinux support: yes
+Configuration⚓︎
+To view file for the entire system. Later on we'll look at specific ones to individual applications.
+ +to modify file
+ +Ctrl + O to save
+Ctrl + X to exit
+Files can be rotated daily, weekly, monthly. Recommended is daily.
+# see "man logrotate" for details
+
+# global options do not affect preceding include directives
+
+# rotate log files weekly
+weekly
+The number of default weeks is 4. If changed to daily, that would be 4 days. Monthly, 4 months. Adjust the number accordingly. In this case, logs more than a month old will be deleted.
+ +# use the adm group by default, since this is the owning group
+# of /var/log/syslog.
+su root adm
+# use the adm group by default, since this is the owning group
+# of /var/log/syslog.
+su root adm
+The default in the next option is create, but copytruncate may be a better option to avoid issues.
+source: Don't Let Logs FILL Your Server
+ +# use date as a suffix of the rotated file
+#dateext
+# uncomment this if you want your log files compressed
+compress
+Logrotate for individual applications⚓︎
+ + + +Logrotate for your own application⚓︎
+This example is for ditto.
+ +In the empty window that opens, include the following, and modify as you wish.
+/var/log/dittooryourapp/*.log {
+ daily
+ missingok
+ rotate 14
+ compress
+ notifempty
+ create 0640 root adm
+ sharedscripts
+ postrotate
+ systemctl reload your-app
+ endscript
+}
++
sources
+video tutorial: Log Management
+guide: A Complete Guide to Managing Log Files with Logrotate
+guide: Hog To Manage Logfiles with Logrotate
++
+
+