[Xymon] log monitoring hostname matching trouble

[EDSchminke at Hormel.com]

Hi Jeremy,

Thanks for your reply.

First, I am aware of the 10 minute interval.  I did observe that when
working with an AIX system.  I mention that because I am able to get log
monitoring  to work there, but not with a Linux system.  That is to say, I
do get a "logfetch.[hostname].cfg" file in $XYMONHOME/tmp, and changes come
in approx ten minutes after being made on the XYMON server at
$XYMONHOME/etc/client-local.cfg

Is there anything I can do to reduce the 10 minute interval for testing
purposes?

-----
Entering "xymoncmd"

[root at lpcobwas2p ~]# su - xymon
-bash-4.1$ export XYMONCLIENTHOME=/home/xymon/client
-bash-4.1$ client/bin/xymoncmd
sh-4.1$ whoami
xymon
sh-4.1$ pwd
/home/xymon
sh-4.1$

----
All files in /home/xymon are owned by xymon, group xymon and are writable

sh-4.1$ find . ! -writable
sh-4.1$ find . ! -user xymon
sh-4.1$ find . ! -group xymon
sh-4.1$


$XYMONTMP/msg.$(hostname).txt is getting updated every five minutes, as
expected:

sh-4.1$ ls -la client/tmp/msg.$(hostname).txt
-rw-rw-r--. 1 xymon xymon 152566 Jan 13 08:00
client/tmp/msg.lpcobwas2p.hfc.ad.txt
sh-4.1$ ls -la client/tmp/msg.$(hostname).txt
-rw-rw-r--. 1 xymon xymon 148917 Jan 13 08:05
client/tmp/msg.lpcobwas2p.hfc.ad.txt
sh-4.1$

-----
I sent this file manually to the xymon server, but got no output

sh-4.1$ $XYMON $XYMSRV "@" < $XYMONTMP/msg.lpcobwas2p.hfc.ad.txt
sh-4.1$

-----
Sending your suggested test string yields the following:

sh-4.1$ $XYMON $XYMSRV "@" << EOT
client $MACHINE.linux linux
EOT
log:/var/log/messages:10240
ignore MARK
sh-4.1$ echo $MACHINE
lpcobwas2p,hfc,ad
sh-4.1$

Interesting... but a) why doesn't that come back with the message file and
b) it still doesn't match the hostname

-----

Lastly.. I'm still not clear on the correct format of a hostname definition
for client/etc/client-local.cfg

Should it be

lpcobwas2p (just hostname)
lpcobwas2p.hfc.ad (period)
lpcobwas2p,hfc,ad (commas)

Thanks,



Erik D. Schminke | Associate Systems Programmer
Hormel Foods Corporation | One Hormel Way | Austin, MN 55912
Phone: (507) 434-6817
edschminke at hormel.com | www.hormelfoods.com





From:	Jeremy Laidman <jlaidman at rebel-it.com.au>
To:	EDSchminke at hormel.com
Date:	01/12/2016 08:03 PM
Subject:	Re: [Xymon] log monitoring hostname matching trouble



Erik

Hmm. It's hard to know what might be wrong.  First, note that it can take
some time (10 minutes maybe) for the cfg file to appear.

Check your ~xymon/client/tmp/ directory and ensure that the xymon user can
write there (probably should have owner and group both as "xymon").

Then, see if you have a client message temp file there with something like

ls -l ~xymon/client/tmp/msg.*.txt

This should show the hostname that the Xymon client is using, as part of
the filename.  It will also show the permissions, which should make the
file writeable by the xymon user.  Also, check the first line of the file
(eg: head -1 ~xymon/client/tmp/msg.*.txt) and see if the hostname listed
there is what you're expecting.

Try sending the msg.*.txt file via the xymon client message, and see if you
get the cfg file as output:

$ ~xymon/client/bin/xymoncmd
$ $XYMON $XYMSRV @ < $XYMONTMP/msg.*.txt
$ exit

Or even just:

$ ~xymon/client/bin/xymoncmd
$ echo "client $MACHINE.linux linux" | $XYMON $XYMSRV @

(Substitute "linux" for your OS.)

Cheers
Jeremy

On Sat, Jan 9, 2016 at 3:10 AM <EDSchminke at hormel.com> wrote:

  Hello,

  I'm trying to get log monitoring to work on a new implementation of Xymon
  (v4.3.24)

  For whatever reason, my client doesn't seem to be receiving a
  logfetch.cfg
  file from the server after it checks in.  I've tried a number of
  combinations of hostname and none of them seem to work:

  [lpcobwas2p] (hostname only)
  [lpcobwas2p.hfc.ad] (FQDN, periods)
  [lpcobwas2p,hfc,ad] (FQDN, commas)

  None of them seem to work.

  Any ideas?

  Server side:

  [root at lxcobxymonp server]# pwd
  /home/xymon/server
  [root at lxcobxymonp server]# hostname
  lxcobxymonp.hfc.ad
  [root at lxcobxymonp server]#

  [root at lxcobxymonp server]# tail -2 etc/client-local.cfg
  [lpcobwas2p]
  log:/var/log/messages:20480
  [root at lxcobxymonp server]#

  [root at lxcobxymonp server]# grep lpcobwas2p etc/hosts.cfg
  0.0.0.0         lpcobwas2p # CLIENT:lpcobwas2p.hfc.ad
  [root at lxcobxymonp server]#

  Client side:

  [root at lpcobwas2p client]# pwd
  /home/xymon/client
  [root at lpcobwas2p client]# hostname
  lpcobwas2p.hfc.ad
  [root at lpcobwas2p client]#

  [root at lpcobwas2p client]# head -2 tmp/msg.lpcobwas2p.hfc.ad.txt
  @@client#1|1|127.0.0.1|lpcobwas2p.hfc.ad|linux
  client lpcobwas2p,hfc,ad.linux linux
  [root at lpcobwas2p client]#


  Erik D. Schminke | Associate Systems Programmer
  Hormel Foods Corporation | One Hormel Way | Austin, MN 55912
  Phone: (507) 434-6817
  edschminke at hormel.com | www.hormelfoods.com


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