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System logs on a Plesk server are not populating when the rsyslog package is not installed

Kuzma Ivanov
Updated
Plesk for Linux kb: technical

Applicable to:

  • Plesk for Linux

Symptoms

  • System logs such as /var/log/maillog, /var/log/secure or /var/log/messages are empty and not populating.

  • When activating Fail2Ban at Tools & Settings > IP Address Banning (Fail2Ban) > Settings, the operation is successful, but the option Enable intrusion detection is still disabled. The following error message appears in the service status:

    # service fail2ban status
    ...
    ERROR    Failed during configuration: Have not found any log file for ssh jai

Cause

The system package rsyslog which is responsible for logging is not installed on the server:

  • on CentOS/RHEL-based distributions

    # rpm -qa | grep rsyslog
    #

  • on Debian/Ubuntu-based distributions

    # dpkg -l | grep rsyslog
    #

Note: The rsyslog package does not come by default on AlmaLinux installations.

Resolution

  1. Connect to the Plesk server via SSH.

  2. Install the rsyslog package:

    • on CentOS/RHEL-based distributions

      # yum install rsyslog

      or the command below, if DNF package manager is used:

      # dnf install rsyslog

    • on Debian/Ubuntu-based distributions

      # apt install rsyslog

  3. Start the rsyslog service:

    # systemctl start rsyslog

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Comments

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    Unknown User

    We are experiencing this exact same scenario on a new AlmaLinux 9.1 server, but rsyslog is installed and running.

    # rpm -qa | grep rsyslog
    rsyslog-8.2102.0-105.el9.x86_64

    # service fail2ban status
    ......
       Process: 23936 ExecStart=/usr/bin/fail2ban-server -xf start (code=exited, status=255/EXCEPTION)
       Main PID: 23936 (code=exited, status=255/EXCEPTION)
     ......   
    [23936]: ERROR   Failed during configuration: Have not found any log file for [any log]

    Any suggestions?

     

    0

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