Configure CSPC to Forward Syslog to Syslog Server

Introduction

This document describes how to configure the CSPC to forward syslogs to a syslog server.

Problem

Although the BCS and NP support syslog analysis, some people already have another solution and like to use a syslog server like Splunk. But in this case, you require the CSPC to forward the syslogs from CSPC to the syslog server.

Solution

Determine which protocol (TCP/UDP) and which IP/port you need to use. The defaul port is 514.

Note: Syslog server must be reachable from the CSPC.

Using rsyslog

1. Back up /etc/rsyslog.conf.

cp /etc/rsyslog.conf /etc/rsyslog.confbkup<date>

2. Add a forwarding rule.

# ### begin forwarding rule ###
# The statement between the begin ... end define a SINGLE forwarding
# rule. They belong together, do NOT split them. If you create multiple
# forwarding rules, duplicate the whole block!
# Remote Logging (we use TCP for reliable delivery)
#
# An on-disk queue is created for this action. If the remote host is
# down, messages are spooled to disk and sent when it is up again.
#$WorkDirectory /var/lib/rsyslog # where to place spool files
#$ActionQueueFileName fwdRule1 # unique name prefix for spool files
#$ActionQueueMaxDiskSpace 1g   # 1gb space limit (use as much as possible)
#$ActionQueueSaveOnShutdown on # save messages to disk on shutdown
#$ActionQueueType LinkedList   # run asynchronously
#$ActionResumeRetryCount -1    # infinite retries if host is down
# remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional
#*.* @@remote-host:514
Add here
# ### end of the forwarding rule ###

2.1. Example for TCP:

*.* @@138.25.253.132:514

2.2. Example for UDP:

*.* @138.25.253.132:514

3. Restart rsyslog.

service rsyslog restart 

Note: If you configure the wrong protocol, an error message appears rsyslogd: cannot connect to : : Connection refused ... . If this error occurs, modify (go to steps 2.1 and 2.2).

We can generate syslogs for testing purposes with:

logger "Your message for testing here"

4. Confirm if syslogs are being received.