Splunk® Enterprise

Add Cisco ASA data: Distributed deployment with indexer clustering

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Configure a syslog-ng server

To configure a syslog-ng server, complete the following steps:

  1. Save a copy of syslog-ng.conf before editing it.
  2. Open syslog-ng.conf, and edit it to make configuration changes. The following syslog-ng.conf file shows an example of how incoming events can be separated using regex filters. Each unique data source type has a directory created under /home/syslog/logs. Set the create_dirs attribute to yes to create the necessary directories, if they don't already exist.
    # syslog-ng configuration file.
    #
    #
    options {
    chain_hostnames(no);
    create_dirs (yes);
    dir_perm(0755);
    dns_cache(yes);
    keep_hostname(yes);
    log_fifo_size(2048);
    log_msg_size(8192);
    perm(0644);
    time_reopen (10);
    use_dns(yes);
    use_fqdn(yes);
    };
    source s_network {
    udp(port(514));
    };
    #Destinations
    destination d_cisco_asa { file(“/home/syslog/logs/cisco/asa/$HOST/$YEAR-$MONTH-$DAY-cisco-asa.log” create_dirs(yes)); };
     
    # Filters
    filter f_cisco_asa { match(“%ASA” value(“PROGRAM”)) or match(“%ASA” value(“MESSAGE”)); };
    filter f_all { not (
    filter(f_cisco_asa)
    );
    };
    # Log
    log { source(s_network); filter(f_cisco_asa); destination(d_cisco_asa); };
    log { source(s_network); filter(f_all); destination(d_all); };
    
  3. Restart syslog-ng to apply updates.
sudo systemctl restart syslog-ng.service

For more information refer to the syslog-ng installation manual at OneIdentity.com.

Last modified on 07 December, 2018
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This documentation applies to the following versions of Splunk® Enterprise: 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6, 7.2.7, 7.2.8, 7.2.9, 7.2.10, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5, 7.3.6, 7.3.7, 7.3.8, 7.3.9, 8.0.0, 8.0.1, 8.0.2, 8.0.3, 8.0.4, 8.0.5, 8.0.6, 8.0.7, 8.0.8


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