第 14 章 Configuring CUPS to store logs in files instead of the systemd journal

By default, CUPS stores log messages in the systemd journal. Alternatively, you can configure CUPS to store log messages in files.

Prerequisites

Procedure

Edit the /etc/cups/cups-files.conf file, and set the AccessLog, ErrorLog, and PageLog parameters to the paths where you want to store these log files:
```
AccessLog /var/log/cups/access_log
ErrorLog /var/log/cups/error_log
PageLog /var/log/cups/page_log
```
If you configure CUPS to store the logs in a directory other than /var/log/cups/, set the cupsd_log_t SELinux context on this directory, for example:
```
# semanage fcontext -a -t cupsd_log_t "/var/log/printing(/.*)?"
# restorecon -Rv /var/log/printing/
```
Restart the cups service:
```
# systemctl restart cups
```

Verification

Display the log files:

# cat /var/log/cups/access_log
# cat /var/log/cups/error_log
# cat /var/log/cups/page_log

If you configured CUPS to store the logs in a directory other than /var/log/cups/, verify that the SELinux context on the log directory is cupsd_log_t:
```
# ls -ldZ /var/log/printing/
drwxr-xr-x. 2 lp sys unconfined_u:object_r:cupsd_log_t:s0 6 Jun 20 15:55 /var/log/printing/
```