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This is a part of the rsyslog.conf documentation.
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<h2>Examples</h2>
Below are example for templates and selector lines. I hope
they are self-explanatory. If not, please see
www.monitorware.com/rsyslog/ for advise.
<h3>TEMPLATES</h3>
Please note that the samples are split across multiple lines.
A template MUST NOT actually be split across multiple lines. 
 
A template that resembles traditional syslogd file output: 
$template TraditionalFormat,"%timegenerated% %HOSTNAME% 
%syslogtag%%msg:::drop-last-lf%\n" 
 
A template that tells you a little more about the message: 
$template
precise,"%syslogpriority%,%syslogfacility%,%timegenerated%,%HOSTNAME%, 
%syslogtag%,%msg%\n" 
 
A template for RFC 3164 format: 
$template RFC3164fmt,"&lt;%PRI%&gt;%TIMESTAMP% %HOSTNAME%
%syslogtag%%msg%" 
 
A template for the format traditonally used for user messages: 
$template usermsg," XXXX%syslogtag%%msg%\n\r" 
 
And a template with the traditonal wall-message format: 
$template wallmsg,"\r\n\7Message from syslogd@%HOSTNAME% at
%timegenerated% 
 
A template that can be used for the database write (please note the SQL 
template option) 
$template MySQLInsert,"insert iut, message, receivedat values 
('%iut%', '%msg:::UPPERCASE%', '%timegenerated:::date-mysql%') 
into systemevents\r\n", SQL 
 
The following template emulates <a href="http://www.winsyslog.com/en/">WinSyslog</a>
format (it's an <a href="http://www.adiscon.com/en/">Adiscon</a>
format, you do not feel bad if you don't know it ;)). It's interesting
to see how it takes different parts out of the date stamps. What
happens is that the date stamp is split into the actual date and time
and the these two are combined with just a comma in between them. 
 
$template WinSyslogFmt,"%HOSTNAME%,%timegenerated:1:10:date-rfc3339%, 
%timegenerated:12:19:date-rfc3339%,%timegenerated:1:10:date-rfc3339%, 
%timegenerated:12:19:date-rfc3339%,%syslogfacility%,%syslogpriority%, 
%syslogtag%%msg%\n"
<h3>SELECTOR LINES</h3>
# Store critical stuff in critical 
# 
*.=crit;kern.none /var/adm/critical 
 
This will store all messages with the priority crit in the file
/var/adm/critical, except for any kernel message. 
 
 
# Kernel messages are first, stored in the kernel 
# file, critical messages and higher ones also go 
# to another host and to the console. Messages to 
# the host finlandia are forwarded in RFC 3164 
# format (using the template defined above). 
# 
kern.* /var/adm/kernel 
kern.crit @finlandia;RFC3164fmt 
kern.crit /dev/console 
kern.info;kern.!err /var/adm/kernel-info 
 
The first rule direct any message that has the kernel facility to the
file /var/adm/kernel. 
 
The second statement directs all kernel messages of the priority crit
and higher to the remote host finlandia. This is useful, because if the
host crashes and the disks get irreparable errors you might not be able
to read the stored messages. If they're on a remote host, too, you
still can try to find out the reason for the crash. 
 
The third rule directs these messages to the actual console, so the
person who works on the machine will get them, too. 
 
The fourth line tells rsyslogd to save all kernel messages that come
with priorities from info up to warning in the file
/var/adm/kernel-info. Everything from err and higher is excluded. 
 
 
# The tcp wrapper loggs with mail.info, we display 
# all the connections on tty12 
# 
mail.=info /dev/tty12 
 
This directs all messages that uses mail.info (in source LOG_MAIL |
LOG_INFO) to /dev/tty12, the 12th console. For example the tcpwrapper
tcpd(8) uses this as it's default. 
 
 
# Store all mail concerning stuff in a file 
# 
mail.*;mail.!=info /var/adm/mail 
 
This pattern matches all messages that come with the mail facility,
except for the info priority. These will be stored in the file
/var/adm/mail. 
 
 
# Log all mail.info and news.info messages to info 
# 
mail,news.=info /var/adm/info 
 
This will extract all messages that come either with mail.info or with
news.info and store them in the file /var/adm/info. 
 
 
# Log info and notice messages to messages file 
# 
*.=info;*.=notice;\ 
mail.none /var/log/messages 
 
This lets rsyslogd log all messages that come with either the info or
the notice facility into the file /var/log/messages, except for all 
messages that use the mail facility. 
 
 
# Log info messages to messages file 
# 
*.=info;\ 
mail,news.none /var/log/messages 
 
This statement causes rsyslogd to log all messages that come with the
info priority to the file /var/log/messages. But any message coming
either with the mail or the news facility will not be stored. 
 
 
# Emergency messages will be displayed using wall 
# 
*.=emerg * 
 
This rule tells rsyslogd to write all emergency messages to all
currently logged in users. This is the wall action. 
 
 
# Messages of the priority alert will be directed 
# to the operator 
# 
*.alert root,rgerhards 
 
This rule directs all messages with a priority of alert or higher to
the terminals of the operator, i.e. of the users "root'' and
"rgerhards'' if they're logged in. 
 
 
*.* @finlandia 
 
This rule would redirect all messages to a remote host called
finlandia. This is useful especially in a cluster of machines where all
syslog messages will be stored on only one machine. 
 
In the format shown above, UDP is used for transmitting the message.
The destination port is set to the default auf 514. Rsyslog is also
capable of using much more secure and reliable TCP sessions for message
forwarding. Also, the destination port can be specified. To select TCP,
simply add one additional @ in front of the host name (that is, @host
is UPD, @@host is TCP). For example: 
 
 
*.* @@finlandia 
 
To specify the destination port on the remote machine, use a colon
followed by the port number after the machine name. The following
forwards to port 1514 on finlandia: 
 
 
*.* @@finlandia:1514 
 
This syntax works both with TCP and UDP based syslog. However, you will
probably primarily need it for TCP, as there is no well-accepted port
for this transport (it is non-standard). For UDP, you can usually stick
with the default auf 514, but might want to modify it for security rea- 
sons. If you would like to do that, it's quite easy: 
 
 
*.* @finlandia:1514 
 
 
 
*.* &gt;dbhost,dbname,dbuser,dbpassword;dbtemplate 
 
This rule writes all message to the database "dbname" hosted on
"dbhost". The login is done with user "dbuser" and password
"dbpassword". The actual table that is updated is specified within the
template (which contains the insert statement). The template is called
"dbtemplate" in this case.
:msg,contains,"error" @errorServer
This rule forwards all messages that contain the word "error"
in the msg part to the server "errorServer". Forwarding is via UDP.
Please note the colon in fron

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This documentation is part of the
<a href="http://www.rsyslog.com/">rsyslog</a> project. 
Copyright &copy; 2008 by <a href="http://www.gerhards.net/rainer">Rainer Gerhards</a> and
<a href="http://www.adiscon.com/">Adiscon</a>. Released under the GNU GPL
version 2 or higher.
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