[Newbie] Understanding client-server configuration (terabithia's rpm 4.3.10-1.fc17)
Hello. I attempt to setup xymon from terabithia's packages (rebuilded 4.3.10-1.fc17.src.rpm with small changes for ALT Linux) Xymon's server works and ready for receive data from clients I think: tcp 0 0 0.0.0.0:1984 0.0.0.0:* LISTEN 3557/xymond Web pages generated correctly. All server's tests works. Now I attempt to setup client. So, 3 questions. 1. I need to make some network's tests on client and transfer results to server. Should I setup client installation or server installation in this case ? 2. I found a bug in packages. xymon and xymon-client packages contains /usr/libexec/xymon-client/xymonclient.sh with code: Is this script need always ? if test "$LOCALMODE" = "yes"; then echo "@@" >> $MSGTMPFILE /usr/libexec/xymon-client/xymond_client --local <$MSGTMPFILE else xymond_client exist in xymon package only and by another path: /usr/libexec/xymon/xymond_client Is this script need always ? Could this be the cause of problems in the client ? 3. About package. xymon package contains xymonclient-*.sh for non linux. All this removed from xymon-client. Are they forgotten in xymon package or they needed ? -- Regards, Sergey
On Wednesday 27 of February 2013 13:24:01 Sergey wrote:
/usr/libexec/xymon-client/xymonclient.sh with code:
if test "$LOCALMODE" = "yes"; then echo "@@" >> $MSGTMPFILE /usr/libexec/xymon-client/xymond_client --local <$MSGTMPFILE else
"Is this script need always ?" - unfortunate copy-and-paste before code block... -- Regards, Sergey
On 27 February 2013 20:24, Sergey <a_s_y at sama.ru> wrote:
1. I need to make some network's tests on client and transfer results to server. Should I setup client installation or server installation in this case ?
It depends on the network tests you want to run. If they are standard xymonnet checks, such as ssh or dns, then you only need to configure them on the server in hosts.cfg. Can you tell us what network tests you want to run?
2. I found a bug in packages. xymon and xymon-client packages contains /usr/libexec/xymon-client/xymonclient.sh with code: Is this script need always ? if test "$LOCALMODE" = "yes"; then echo "@@" >> $MSGTMPFILE /usr/libexec/xymon-client/xymond_client --local <$MSGTMPFILE else
I've never run in localmode, so not sure. But it would seem that xymond_client binary only exists in the Xymon server package, and not in the Xymon client package. My Xymon clients (that aren't servers) don't have xymond_client anywhere. From reading the localclient.cfg file, it would seem that the "--local" option is only for use on Xymon clients that are also Xymon servers.
xymond_client exist in xymon package only and by another path:
/usr/libexec/xymon/xymond_client
On my system, the line that calls this in xymonclient.sh is: $XYMONHOME/bin/xymond_client --local --config=$XYMONHOME/etc/localclient.cfg <$MSGTMPFILE I think your package's xymonclient.sh is incorrect, and probably should be using this: /usr/libexec/xymon/xymond_client --local <$MSGTMPFILE Is this script need always ? No, only in "local" mode.
Could this be the cause of problems in the client ?
Only if you're running it in local mode, by specifying "--local" in the "[xymonclient]" section of tasks.cfg.
3. About package. xymon package contains xymonclient-*.sh for non linux. All this removed from xymon-client. Are they forgotten in xymon package or they needed ?
Nope, they're not needed. But they're always there. It makes it easy to copy the files to another server and run them. The original BB was generally copied around in this way, before packaging became popular, so perhaps this is a legacy of Xymon's origins. J
On Thursday 28 February 2013, Jeremy Laidman wrote:
- I need to make some network's tests on client and transfer results to server. Should I setup client installation or server installation in this case ?
It depends on the network tests you want to run. If they are standard xymonnet checks, such as ssh or dns, then you only need to configure them on the server in hosts.cfg. Can you tell us what network tests you want to run ?
I need connections tests to another hosts. If I understood correctly, I need to install the server in this case. Ok. I attempted to do it now. Secondary server sending self data (cpu, disk e.t.c.) to main server, but not sending information about connection. hosts.cfg of secondary server:
0.0.0.0 xymon-client.my.dom # bbd 172.30.1.10 server2.my.dom #
I see only "xymon-server.my.dom" and "xymon-client.my.dom" (with their tests) on information web page of mail server. Is there a chance to see "server2.my.dom" on the main server ?
I've never run in localmode, so not sure. But it would seem that xymond_client binary only exists in the Xymon server package, and not in the Xymon client package. My Xymon clients (that aren't servers) don't have xymond_client anywhere. From reading the localclient.cfg file, it would seem that the "--local" option is only for use on Xymon clients that are also Xymon servers.
Ok, thanks. I will try to verify with it later.
- About package. xymon package contains xymonclient-*.sh for non linux. All this removed from xymon-client. Are they forgotten in xymon package or they needed ?
Nope, they're not needed. But they're always there.
Thanks again.
It makes it easy to copy the files to another server and run them.
But xymon contains binary files. They should be rebuild for another system...
-- Regards, Sergey
On 28 February 2013 23:28, Sergey <a_s_y at sama.ru> wrote:
I need connections tests to another hosts. If I understood correctly, I need to install the server in this case.
No, you only need to install the Xymon server software where you want to collect and display the test results. With this alone, the Xymon server can display the results of any network tests (conn=ping, ssh, smtp, dns, http) sent to any other server. No other software is required, just the Xymon server software.
If the Xymon server needs to monitor its own OS parameters (CPU, memory, disk), it also needs to have the Xymon client software installed and running.
If the Xymon server needs to monitor another host's OS parameters (CPU, memory, disk), the Xymon client software needs to be installed onto the other host.
Ok. I attempted to do it now. Secondary server sending self data (cpu, disk e.t.c.) to main server, but not sending information about connection.
No, because connections are tested by the Xymon server, not the other server.
hosts.cfg of secondary server:
No hosts.cfg is required on the secondary server, because it is only a Xymon client. It only needs the Xymon client software installed and running.
I see only "xymon-server.my.dom" and "xymon-client.my.dom" (with their
tests) on information web page of mail server. Is there a chance to see "server2.my.dom" on the main server ?
Yes. Add server2.my.dom into hosts.cfg on the Xymon server.
It makes it easy to copy the files to another server and run them.
But xymon contains binary files. They should be rebuild for another system...
Correct. They are probably there just because they were always there.
J
On Friday 01 of March 2013 13:45:00 you wrote:
I need connections tests to another hosts. If I understood correctly, I need to install the server in this case.
No, you only need to install the Xymon server software where you want to collect and display the test results. With this alone, the Xymon server can display the results of any network tests (conn=ping, ssh, smtp, dns, http) sent to any other server. No other software is required, just the Xymon server software.
Possible I did not wrote correctly in English... I will draw it.
host 1 (Xymon server / web) | | host 2 (Xymon server 2 or Xymon client ?) | | host 3
"host 3" is not avaliable from "host 1". "host 2" should make ping test and send result to "host 1".
If the Xymon server needs to monitor its own OS parameters (CPU, memory, disk), it also needs to have the Xymon client software installed and running.
If the Xymon server needs to monitor another host's OS parameters (CPU, memory, disk), the Xymon client software needs to be installed onto the other host.
I.e. "host 2" should contains Xymon server installation because the "ping test" is not of the OS parameter. Yes ?
I see only "xymon-server.my.dom" and "xymon-client.my.dom" (with their
tests) on information web page of mail server. Is there a chance to see "server2.my.dom" on the main server ?
Yes. Add server2.my.dom into hosts.cfg on the Xymon server.
"ping test" for "host 3" will be unsuccessful from main Xymon server (host 1). :-(
-- Regards, Sergey
On Friday 01 of March 2013 12:17:05 Sergey wrote:
Possible I did not wrote correctly in English... I will draw it.
host 1 (Xymon server / web) | | host 2 (Xymon server) | | host 3
"host 3" is not avaliable from "host 1". "host 2" should make ping test and send result to "host 1".
It works! :-)
hosts.cfg on "host 1":
172.30.1.10 server2.my.dom # noconn
hosts.cfg on "host 2":
172.30.1.10 server2.my.dom #
"server2.my.dom" is the "host 3".
The problem was in the following. xymonserver.cfg contains
General settings
XYMONDPORT="1984" # Portnumber where xymond listens XYMSRV="0.0.0.0" # IP of a single Xymon server XYMSERVERS="$XYMONSERVERIP" # IP of multiple Xymon servers. If used, XYMSRV must be 0.0.0.0
I attempted to configure Xymon on "host 2" via XYMSERVERS variable and it did not work. The "ping test" data begin transmitted to the "host 1" when I used the variable XYMSRV as point to "host 1". This is probably a bug Xymon or xymon's rpm package...
-- Regards, Sergey
On Friday 01 March 2013, Sergey wrote:
host 1 (Xymon server / web) | | host 2 (Xymon server) | | host 3
It works! :-)
Hm... It not only works... :-) I found in reports.log on "host 2":
2013-03-06 01:03:58 Weird file '/var/lib/xymon/hist/hostX.telnet' skipped 2013-03-06 01:03:58 Weird file '/var/lib/xymon/hist/hostX.ssh' skipped 2013-03-06 01:03:58 Weird file '/var/lib/xymon/hist/hostX.ftp' skipped 2013-03-06 01:03:58 Weird file '/var/lib/xymon/hist/hostX.bbd' skipped 2013-03-06 01:03:58 Weird file '/var/lib/xymon/hist/hostX.conn' skipped
hostX is checking from "host 1". Xymon's servers are exchanging of information ? Can I disable transfer from host 1 to host 2 ?
-- Regards, Sergey
Host 3 would have the xymon client on it.
Host 2 would have the xymon server on it, configured as a proxy. You may also have the server on it on a separate port, if you want.
-----Original Message----- From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Sergey Sent: Friday, March 01, 2013 2:17 AM To: xymon at xymon.com Subject: Re: [Xymon] [Newbie] Understanding client-server configuration (terabithia's rpm 4.3.10-1.fc17)
On Friday 01 of March 2013 13:45:00 you wrote:
I need connections tests to another hosts. If I understood correctly, I need to install the server in this case.
No, you only need to install the Xymon server software where you want to collect and display the test results. With this alone, the Xymon server can display the results of any network tests (conn=ping, ssh, smtp, dns, http) sent to any other server. No other software is required, just the Xymon server software.
Possible I did not wrote correctly in English... I will draw it.
host 1 (Xymon server / web) | | host 2 (Xymon server 2 or Xymon client ?) | | host 3
"host 3" is not avaliable from "host 1". "host 2" should make ping test and send result to "host 1".
If the Xymon server needs to monitor its own OS parameters (CPU, memory, disk), it also needs to have the Xymon client software installed and running.
If the Xymon server needs to monitor another host's OS parameters (CPU, memory, disk), the Xymon client software needs to be installed onto the other host.
I.e. "host 2" should contains Xymon server installation because the "ping test" is not of the OS parameter. Yes ?
I see only "xymon-server.my.dom" and "xymon-client.my.dom" (with their
tests) on information web page of mail server. Is there a chance to see "server2.my.dom" on the main server ?
Yes. Add server2.my.dom into hosts.cfg on the Xymon server.
"ping test" for "host 3" will be unsuccessful from main Xymon server (host 1). :-(
-- Regards, Sergey
Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon
On Friday 01 of March 2013 14:09:09 Root, Paul wrote:
Host 3 would have the xymon client on it.
I would like to consider the situation when the "host 3" is a switch or any other host where I can not install software.
Host 2 would have the xymon server on it, configured as a proxy. You may also have the server on it on a separate port, if you want.
Proxy can be good idea for some other cases, thanks.
-- Regards, Sergey
participants (3)
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a_s_y＠sama.ru
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jlaidman＠rebel-it.com.au
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Paul.Root＠CenturyLink.com