How to configure Debian Apache log rotation

This article introduces how to configure Apache log rotation in the Debian system, mainly using the logrotate tool.

Step 1: Verify that logrotate is installed

Check with the following command:

 logrotate --version

If not installed, execute:

 sudo apt-get update
sudo apt-get install logrotate

Step 2: Locate the Apache log rotation configuration file

The configuration file is usually located in the /etc/logrotate.d/ directory, and the file name may be apache2 or httpd . Use the following command to find:

 ls /etc/logrotate.d/apache2 # or ls /etc/logrotate.d/httpd

Step 3: Edit the Apache log rotation configuration file

Open the configuration file using a text editor such as nano or vim :

 sudo nano /etc/logrotate.d/apache2 # or sudo nano /etc/logrotate.d/httpd

Step 4: Configure logrotate parameters

In the configuration file, you can customize the log rotation frequency, the number of retained log files, the compression method, etc. Here is a sample configuration:

 <code>/var/log/apache2/*.log { daily missingok rotate 7 compress delaycompress notifempty create 640 root adm sharedscripts postrotate if [ -x /usr/sbin/invoke-rc.d ]; then /usr/sbin/invoke-rc.d apache2 reload >/dev/null 2>&1 fi endscript }</code>

Parameter description:

• daily : daily rotation.
• missingok : No error is reported when the log file is missing.
• rotate 7 : Keep 7 log files.
• compress : Compress old logs.
• delaycompress : Delay compression until the next rotation.
• notifempty : The empty log file does not rotate.
• create 640 root adm : Create a new log file with permissions of 640, belongs to the main root, belongs to the group adm.
• sharedscripts : When multiple log files are used, the postrotate script is executed only once.
• postrotate ... endscript : The script executed after log rotation, reload the Apache configuration here. (Use more general if [ -x ... ] to check if the script exists)

Step 5: Test the configuration

Test the configuration with the following command:

 sudo logrotate -d /etc/logrotate.d/apache2 # -d parameter is test mode and will not be actually executed

The -d parameter is used for testing mode, and does not actually perform rotation, and only checks whether the configuration syntax is correct. If there is no error, then execute sudo logrotate /etc/logrotate.d/apache2 for actual rotation.

Step 6: Confirm the timing task

logrotate is usually automatically executed by the system cron task. You can check the /etc/cron.daily/logrotate file to make sure it exists and is configured correctly.

After completing the above steps, your Debian system Apache log rotation configuration is completed. If you have any questions, please check the configuration file syntax and permission settings.

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