Prevent rsyslog from writing messages from remote hosts to /var/log/messages

Hi,
I am configuring rsyslog to capture messages from remotes hosts to /var/log/remotehosts. It is working, but messages from remote hosts are also going to /var/log/messages. Is there a way to prevent that from happening? My rsyslog follows

Thanks in advance,
Leonard

# rsyslog v5 configuration file

# For more information see /usr/share/doc/rsyslog-*/rsyslog_conf.html
# If you experience problems, see http://www.rsyslog.com/doc/troubleshoot.html

#### MODULES ####

$ModLoad imuxsock # provides support for local system logging (e.g. via logger command)
$ModLoad imklog # provides kernel logging support (previously done by rklogd)
#$ModLoad immark # provides --MARK-- message capability

# Provides UDP syslog reception
$ModLoad imudp
$UDPServerAddress 0.0.0.0
$UDPServerRun 514

# Provides TCP syslog reception
#$ModLoad imtcp
#$InputTCPServerRun 514

#### GLOBAL DIRECTIVES ####

# Use default timestamp format
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# File syncing capability is disabled by default. This feature is usually not required,
# not useful and an extreme performance hit
#$ActionFileEnableSync on

# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf

$template TraditionalFormat,"%timegenerated% %HOSTNAME% %syslogtag%%msg:::drop-last-lf%\n"

$template DailyPerHostLogs,"/var/log/remotehosts/%HOSTNAME%.%$YEAR%-%$MONTH%-%$DAY%.log"
*.* -?DailyPerHostLogs;TraditionalFormat

## This section added to prevent remote messages from being looged to messages
if $source == 'smctux01' and $syslogseverity <= '6' then /var/log/messages;TraditionalFormat
#######

#### RULES ####

# Log all kernel messages to the console.
# Logging much else clutters up the screen.
#kern.* /dev/console

# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;authpriv.none;cron.none /var/log/messages

# The authpriv file has restricted access.
authpriv.* /var/log/secure

# Log all the mail messages in one place.
mail.* -/var/log/maillog

# Log cron stuff
cron.* /var/log/cron

# Everybody gets emergency messages
*.emerg *

# Save news errors of level crit and higher in a special file.
uucp,news.crit /var/log/spooler

# Save boot messages also to boot.log
local7.* /var/log/boot.log

12 Sep 12

You seem to know your way around rsyslog, so, I won't post any Google links. I myself, don't know of an option that will help you filter what goes in to /var/log/messages. Hopefully someone who has an answer will see the post. Be Patient.

25 Apr

I was fighting this same issue today and came up with what I believe is a solution. I run CentOS servers and my solution focuses on that distro.

#1 - update to the latest version of syslog
create /etc/yum.repos.d/rsyslog.repo and place the following into it



[rsyslog_v7]

name=Adiscon CentOS-$releasever - local packages for $basearch

baseurl=http://rpms.adiscon.com/v7-stable/epel-$releasever/$basearch

enabled=1

gpgcheck=0

gpgkey=http://rpms.adiscon.com/RPM-GPG-KEY-Adiscon

protect=1

Move your existing /etc/rsyslog.conf file to another directory prior to upgrade. This will allow the installer to create a new conf file for you. You can copy/paste your custom settings into the new file post upgrade.

Execute the command 'yum update rsyslog' to update rsyslog.

#2
The following code shuld be placed before the "*.info;mail.none;authpriv.none;cron.none /var/log/messages" entry. Be sure you replace <ServerName> in the example below with the name of your central logging server



# Log each remote host into it's own directory and then discard remote server logs:

$template RemoteHost,"/var/log/remote-hosts/%HOSTNAME%/%HOSTNAME%-%$YEAR%%$MONTH%%$DAY%.log"

if ($hostname != '<ServerName>') then ?RemoteHost

& ~

From my research on this, position in the file is critical, you must capture the remote server logs, place them into the dedicated location and discard them when done prior to the *.info entry.

I hope this helps. I am not guaranteeing that there will be no issues with this setup. As far as I can tell, logging to the local server is working normally and remote hosts all get their own directory and a file with the date string (properly sorting) embedded.

You'll want to check out the link below to make sure you are compressing the old log files.
http://wiki.rsyslog.com/index.php/DailyLogRotation

Linux.com

Prevent rsyslog from writing messages from remote hosts to /var/log/messages

Millerlw

GoinEasy9

winnux

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