Rsyslog configuration
 

Hi Guys,

I would like to check on how to add some information for the rsyslog.

Currently below is the log i get:

Apr 13 13:28:46 bigip1 err iControlPortal.cgi[15479]: Checking for FIPS card.. FIPS open failed.
Apr 13 13:30:01 bigip1 err sSMTP[17636]: Unable to locate mail
Apr 13 13:30:01 bigip1 err sSMTP[17636]: Cannot open mail:25
Apr 13 14:00:01 bigip1 err sSMTP[17774]: Unable to locate mail
Apr 13 14:00:01 bigip1 err sSMTP[17774]: Cannot open mail:25
Apr 13 14:30:01 bigip1 err sSMTP[18031]: Unable to locate mail
Apr 13 14:30:01 bigip1 err sSMTP[18031]: Cannot open mail:25
Apr 13 14:31:47 bigip1 err iControlPortal.cgi[15479]: Checking for FIPS card.. FIPS open failed.
Apr 13 14:31:47 bigip1 err iControlPortal.cgi[15479]: Checking for FIPS card.. FIPS open failed.
Apr 13 14:31:47 bigip1 err iControlPortal.cgi[15479]: Checking for FIPS card.. FIPS open failed.

I don't know the log is sending from which device. I would like to add the ip of the source device into the info

Below is my configuration file.
# 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
$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


#### RULES ####
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
kern.err /var/log/kernel.log

# Log anything (except mail) of level info or higher.
#*.info;mail.none;authpriv.none;cron.none
# *.=cri, *.=alert, *.=emerg
*.error;authpriv.none;cron.none /var/log/rsyslog.log


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

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


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

# Everybody gets emergency messages
*.emerg /var/log/rsyslog.log

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

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


# ### 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
# ### end of the forwarding rule ###
# A template to for higher precision timestamps + severity logging
#$template SpiceTmpl,"%TIMESTAMP%.%TIMESTAMP:::date-subseconds% %syslogtag% %syslogseverity-text%:%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"

#:programname, startswith, "spice-vdagent" /var/log/spice-vdagent.log;SpiceTmpl

Rsyslog version
[root@zabsrv zabbix]# rsyslogd -version
rsyslogd 7.6.7, compiled with:
FEATURE_REGEXP: Yes
GSSAPI Kerberos 5 support: Yes
FEATURE_DEBUG (debug build, slow code): No
32bit Atomic operations supported: Yes
64bit Atomic operations supported: Yes
Runtime Instrumentation (slow code): No
uuid support: Yes
Number of Bits in RainerScript integers: 64

See http://www.rsyslog.com for more information.

Thank you very much in advance.

Hrm... I am pretty sure the fourth column there ("bigip1") is the name of the machine that is sending the log information. For instance, I have a machine that receives syslog entries, and here is a sample...

(syslog is the name of the host machine, iogw3 is the name of another machine)

Now, if you want to convert that DNS name to an IP, there might be some sort of configuration thing you can do within rsyslog.conf

Hi Wells,

Yeah you are right. bigip1 is actually the hostname the F5 (just join the company and don't know the hostname of every device).
However, i check through the rsyslog config file and do not find any line related about the output.

Now i would like to add the ip of the source device also if possible.
If anyone else got any idea on this, please help.
Thank you very much.

Rsyslog.conf
# 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
$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


#### RULES ####
#Discarding the message with particular words

# Log all kernel messages to the console.
# Logging much else clutters up the screen.
kern.err /var/log/kernel.log

# Log anything (except mail) of level info or higher.
#*.info;mail.none;authpriv.none;cron.none
# *.=cri, *.=alert, *.=emerg
*.error;authpriv.none;cron.none /var/log/rsyslog.log


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

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


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

# Everybody gets emergency messages
*.emerg /var/log/rsyslog.log

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

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


# ### 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
# ### end of the forwarding rule ###

# A template to for higher precision timestamps + severity logging
#$template SpiceTmpl,"%TIMESTAMP%.%TIMESTAMP:::date-subseconds% %syslogtag% %syslogseverity-text%:%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"

#:programname, startswith, "spice-vdagent" /var/log/spice-vdagent.log;SpiceTmpl

#$template verbose, "%syslogseverity%, %syslogfacility%, %timegenerated%, %HOSTNAME%, %msg%\n"

Then until you can work with rsyslog to produce a working solution for the logs, I suggest
you start editing /etc/hosts:

<ip_of_bigip1> bigip1

Reasons being, in my experience,

• IP addresses can sometimes change, however,
  the label "bigip1" is likely to remain the same.

Editing /etc/hosts does require that you find the current IP of bigip1 and it puts the responsibility
squarely on you to construct a working template file for rsyslog to process %HOSTNAME to %FROMHOST-IP

Good Luck!

Hi,


I managed to find out how to add the source ip into the msg. :)

I change the template at the line $ActionFileDefaultTemplate

By default it use RSYSLOG_TraditionalFileFormat and below is the template's format.
"%TIMESTAMP% %HOSTNAME% %syslogtag%%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"

So, i created a template with the info i need and assign to the $ActionFileDefaultTemplate. Below is the example.

$template TestSyslog, "%syslogseverity%, %syslogfacility%, %timegenerated%, %fromhost-ip% ,%HOSTNAME%, %msg%\n"
$ActionFileDefaultTemplate TestSyslog

For those who wants to change the format like me, you may refer to below link:
https://access.redhat.com/documentat...f_rsyslog.html

Thanks everyone who helped :)

Good job and Well done!

Can you mark this thread Solved in "Thread Tools" at the top right of the first post?

Thanks.