Configure a syslog server to receive TLS-secured data

Work with a rsyslog system file on a Web Gateway appliance to configure a syslog server that receives TLS-secured data.

Task

  1. On the user interface, select ConfigurationFile Editor.
  2. On the appliances tree, select the appliance that you want to configure a syslog server on, then select rsyslog.conf.
    The content of the system file appears in the configuration frame.
  3. Add the following lines to the file content.
    $ModLoad imtcp.so #Specifies the TCP listener that listens to requests sent from the clients. 
    
    $DefaultNetstreamDriver gtls #Requires use of the netstream driver.
    $DefaultNetstreamDriverCAFile /etc/rsyslog.d/cert/ca.pem #Specifies the root CA.
    $DefaultNetstreamDriverCertFile /etc/rsyslog.d/cert/server.cert.pem #Specifies the certificate for the server.
    $DefaultNetstreamDriverKeyFile  /etc/rsyslog.d/cert/server.key.pem #Specifies the certificate key for the server.
    
    $InputTCPServerStreamDriverAuthMode x509/name
    $InputTCPServerStreamDriverPermittedPeer <client IP address> #Specifies the client through its IP address.
    $InputTCPServerStreamDriverMode 1 #Requires the server to run in TLS mode only.
    $InputTCPServerRun 10514 #Specifies the listener port that the syslog communication starts at. 
      
  4. Log on to the appliance from a local system console or remotely using SSH.
  5. Run the following command to restart the rsyslog function on the appliance.
    /etc/init.d/rsyslog restart

    After restarting rsyslog, a TLS-secured connection is set up, using the settings in the configuration file and the certificates.

  6. Verify that the TLS-secured connection has been set up successfully.
    cat /var/log/messages

    After running the verification command, you should see messages like the following displayed.

    Nov 15 11:23:37 testdev kernel: Kernel logging (proc) stopped.
    Nov 15 11:23:37 testdev rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="37290" x-info="http://www.rsyslog.com"] exiting on
    signal 15.
    Nov 15 11:23:37 testdev kernel: imklog 5.8.10, log source = /prog/kmsd started.
    Nov 15 11:23:37 testdev rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="41552" x-info="http://www.rsyslog.com"] start
    [root@testdev tls]