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19.5. Setting Up a Virtualization Host Logging Server

Hosts generate and update log files, recording their actions and problems. Collecting these log files centrally simplifies debugging.
This procedure should be used on your centralized log server. You could use a separate logging server, or use this procedure to enable host logging on the Red Hat Virtualization Manager.

Procedure 19.1. Setting up a Virtualization Host Logging Server

  1. Configure SELinux to allow rsyslog traffic.
    # semanage port -a -t syslogd_port_t -p udp 514
  2. Edit /etc/rsyslog.conf and add the following lines:
    $template TmplAuth, "/var/log/%fromhost%/secure" 
    $template TmplMsg, "/var/log/%fromhost%/messages" 
    $RuleSet remote
    authpriv.*   ?TmplAuth
    *.info,mail.none;authpriv.none,cron.none   ?TmplMsg
    $RuleSet RSYSLOG_DefaultRuleset
    $InputUDPServerBindRuleset remote
    Uncomment the following:
    #$ModLoad imudp
    #$UDPServerRun 514
  3. Restart the rsyslog service:
    # systemctl restart rsyslog.service
Your centralized log server is now configured to receive and store the messages and secure logs from your virtualization hosts.