November 2014 - Xymon - Xymon mailman web

nginx as the web server
by vadud3＠gmail.com 17 Nov '14

17 Nov '14

Hi All I am using nginx instead of apache with xymon. I set it up using the link http://timedoctor.org/2010/09/setting-up-xymonhobbit-with-nginx/ I am using nginx with xymon_4.3.12_amd64.deb from sourceforge. To make the cgi links work I needed to create symlinks as the link above suggested. /usr/lib/xymon/xymon-cgi -> /usr/lib/xymon/cgi-bin /usr/lib/xymon/xymon-seccgi -> /usr/lib/xymon/cgi-secure Is that how everyone using it with nginx? Please advise. -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?

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False notifications
by Paul.Root＠CenturyLink.com 17 Nov '14

17 Nov '14

Hi, I have xymon 4.3.10 on Centos 5.11, and have for more than a year. There is one master and 2 proxies on an isolated network. Only one proxy sends to the master at a time, and manual intervention is required to switch the forwarding of the proxy. Twice in the last month or two, I've had my oncall paging me that xymon is paging (and repeating every 30 minutes - as per alerts.cfg) on a test that is green in xymon, and actually never went red, yellow, or purple. The first time, the oncall even disabled the green test, but to no avail. I see in the notification log that the email goes out. But there is no alarm on the system. My only course of action was to restart xymon. There were some weird things happening Sunday morning in the Cyber Center. And we had a weekly Xymon test on all our linux machines fail to report around the time that the problem started. But the gui was displaying green for the test that was paging (which has a 5 minute status life). Paul. Paul Root Lead Engineer CenturyLink Network Reliability Operations Center 600 Stinson Blvd, N.E. Flr 2N Minneapolis, MN 55413 Direct: (651)312-5207 Paul.Root at centurylink.com This communication is the property of CenturyLink and may contain confidential or privileged information. Unauthorized use of this communication is strictly prohibited and may be unlawful. If you have received this communication in error, please immediately notify the sender by reply e-mail and destroy all copies of the communication and any attachments.

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Using the disk graph definitions
by jlaidman＠rebel-it.com.au 17 Nov '14

17 Nov '14

On 14 November 2014 08:13, Elizabeth Jones via Xymon <xymon at xymon.com> wrote: > So I thought if I sent the same type of data stream but instead used > server0,mycompany,com.disk \n pct : 65 - this would be recognized by the > disk section in xymonserver.cfg and graphs.cfg. > I would guess that it doesn't work because the "disk" status is special, having its own dedicated parser within the Xymon client processing code. Xymon has special processing to parse disk usage data from the client message, and it if comes in via another mechanism, it might not work as expected. If you're sending NCV data, you probably need TEST2RRD to have "disk=ncv" so that the NCV parser will know to look for NCV format strings, but doing so might break processing for other disk data from real Xymon clients. I think there are more problems with what you're trying to do. For the graph definition to work, the disk files need to be separated for each filesystem, so that you get "disk,root.rrd", "disk,home.rrd" and similar. So this suggests that you need to use SPLITNCV, otherwise all of the data will go into a single RRD file. When you use SPLITNCV, it creates the RRD files, but uses the dataset name "lambda" instead of "pct". If you want to be able to specify the dataset name, you can't use SPLITNCV, and so you'd end up with one RRD file. So I think you can't succeed using the path you've started down. >From my understanding of the way Xymon normally does this for filesystem usage is as follows. The Xymon client (which you can't install) builds up a "client" type message containing (among others) a "[df]" section with the "df" output run on the client machine. This client message is sent to the Xymon server, where xymond gives it to an instance of xymond_client (via xymond_channel) for parsing and analysis. The way it's parsed depends on the OS of the client machine, and each supported OS has dedicated code that parses various client message sections in a way that's appropriate to that OS. After analysing the "df" section from the client message, xymond_client creates a disk report with the results of its analysis. This report includes the status of disk usage compared against thresholds. The disk report is sent back (via localhost:1984) to xymond in a disk "status" message, for display on the "disk" test page for the server. The "status" message is directed to xymond_rrd (via xymond_channel) where it is parsed for numbers and filesystem names, which are given to the RRD library to create/update the RRD file. So there are several points at which you could potentially inject your own "disk" message: 1) Create your own "client" message complete with a "[df]" section, and send to the server. This is what my xymon-rclient does. 2) Create your own disk report in a disk "status" message, and send to the server. As long as it's formatted in a way that Xymon can parse, it'll create both the status message and the RRD data. 3) Create your own NCV data to feed into xymond_rrd in a status message (or the equivalent "trends" message). This seems to be what you're trying to do. I don't think this will provide you with a "disk" dot, so you'll only be able to see the graph on the trends page, and I don't think you can overcome the issues I raised above. The simplest thing to get just the disk usage, would be to create a client message. But it's probably easier, and provides more data for you, to use my xymon-rclient. J

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Client-side data is received but not displayed.
by danger＠tbaisd.org 17 Nov '14

17 Nov '14

This may be a newbie question, but I have searched the documentation and forums and not found a solution. I have Xymon monitoring a couple dozen servers. Recently I installed the BBWin client on some of the Windows servers. In most cases this is working flawlessly. However, I have two instances where the data reported by the client is not being displayed in Xymon. I have checked that the hostnames are correct in hosts.cfg and the client-side configuration. No clients are appearing in the Ghost Clients report. Furthermore, I know that my Xymon server is receiving data from these clients because when I click on the conn status the "Client Data available" link appears and I can see the raw data sent by the client and received by Xymon. Except for hostname, there are no differences in configuration between the servers that display and those that don't. I am running a standard install of Xymon 4.3.7 on Ubuntu 14.04 LTS. Any advice or ideas would be most appreciated. Thank you. Doug

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Hobbit server and client config
by javasant＠in.ibm.com 15 Nov '14

15 Nov '14

Team, Can you please provide the documentation for Hobbit server and client configuration ? At moment one of our client server disk alert shows in purple color, and not triggering the disk alert for that particular server, if you would help that will be greatly appreciated. Thank you. Jayakumar Vasanthakumar IT Specialist Linux GTS SO Delivery Phone: 91-4342-5536 | Mobile: 91-9789-056-860 | Tie-Line: 25536 E-mail: javasant at in.ibm.com Blk 7, 3f & 4f And Blk 1a, Gf Chennai, TN 600089 India

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Using the disk graph definitions
by oogiejonz＠yahoo.com 13 Nov '14

13 Nov '14

I'm now trying to figure out how I can generate disk usage graphs using the disk definitions that are already in xymonserver.cfg and graphs.cfg. I'm clearly not doing something right because I'm not receiving any disk rrd files. For my test, I'm trying to send this from my command line - /home/xymon/xymon.sh 192.50.150.12 "data server0,mycompany,com.disk \n pct : 65" I took the xymon.sh script from a post that I found in the mail archives here - ( echo "$2"; sleep 1 ) | telnet $1 1984 2>&1 >/dev/null | grep -v "closed by foreign host" This works perfectly for generating cpu usage graphs with a variable that I created, solcpu: /home/xymon/xymon.sh 192.50.150.12 "data server0,mycompany.com.solcpu \n solcpu : 90" I get an rrd file named solcpu.rrd and I'm able to generate a graph by just adding solcpu to xymonserver.cfg and graphs.cfg. So I thought if I sent the same type of data stream but instead used server0,mycompany,com.disk \n pct : 65 - this would be recognized by the disk section in xymonserver.cfg and graphs.cfg. But no disk.rrd file is being generated in my rrd directory. I see in other server directories that the files that are created are disk,root.rrd or disk,opt.rrd so maybe I need to do something to shovel the disk volume name into my string somehow? EJ

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Fwd: Re: How to handle SSL Cert Clients with same hostname reporting to xymon
by paul＠shadowsoft.com 13 Nov '14

13 Nov '14

I replied to zep instead of forum. Paul -------- Original Message -------- Subject: Re: [Xymon] How to handle SSL Cert Clients with same hostname reporting to xymon Date: Wed, 12 Nov 2014 22:29:55 -0600 From: Jacob Paul Jordan <paul at shadowsoft.com> To: zep <zgreenfelder at gmail.com> the ssl certs are tied to the hostname of the machine (not apache) apparently. Also are you talking about the bbhosts file for the config. I currently the following hosts that need to be changed to login.publicdata.com as they will have the same ssl cert The current client name is the hostname of the machine. All four need to be login.publicdata.com. But if I do that, the certs work but xymon gets very grumpy and quits reporting data for any of them. 192.168.142.104 www4 # testiphttp://192.168.142.104 CLIENT:104SHADOW apache=http://192.168.142.104/server-status?auto 192.168.142.105 www5 # testiphttp://192.168.142.105 CLIENT:105SHADOW apache=http://192.168.142.105/server-status?auto 192.168.142.106 www6 # testiphttp://192.168.142.106 CLIENT:106SHADOW apache=http://192.168.142.106/server-status?auto 192.168.142.117 login # testiphttp://192.168.142.117 CLIENT:login.publicdata.com apache=http://192.168.142.117/server-status?auto Paul On 11/3/2014 4:37 PM, zep wrote: > On 11/03/2014 04:47 PM, Jacob Paul Jordan wrote: >> Folks, >> I have a Godaddy cert that is suppose to work on multiple servers BUT >> they must have the same hostname. If I put the same hostname on the >> servers the Cert works but xymon is not happy. Is there a way to >> collect data from 3 different ips that have the same hostname and they >> report separately? >> Paul Jordan >> >> _______________________________________________ >> Xymon mailing list >> Xymon at xymon.com >> http://lists.xymon.com/mailman/listinfo/xymon > I believe the expected config is to have something like: > ssl hostname set foobar.tld.net > hosts foobar01, foobar02, foobar03 .... etc .tld.net > apache/whatever http server you're using on host foobar01 configured to > set 'ServerName' to foobar.tld.net [just the apache server set to this, > not the whole host] and repeated through the rest of your complex. >

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creating custom graphs
by oogiejonz＠yahoo.com 13 Nov '14

13 Nov '14

I have a follow up question - I'm now able to get an rrd file generated on my xymon server - woot! But I don't have a graph to go along with it. I'm using data message type and this is what is in my rrd file - I'm under the impression that this should create a graph that shows up in my trends page, but no graph on trends page. The value that I'm sending is solcpu : 2 (percent cpu used). I'm guessing that is what is the the <last_ds> 2 </last_ds> field. Does anyone know what the other fields are? <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd"> <rrd> <version> 0003 </version> <step> 300 </step>  <lastupdate> 1415817304 </lastupdate>  <ds> <name> solcpu </name> <type> DERIVE </type> <minimal_heartbeat> 600 </minimal_heartbeat> <min> NaN </min> <max> NaN </max>  <last_ds> 2 </last_ds> <value> 0.0000000000e+00 </value> <unknown_sec> 0 </unknown_sec> </ds>  <rra> <cf> AVERAGE </cf> <pdp_per_row> 1 </pdp_per_row>  ________________________________ From: Elizabeth Jones via Xymon <xymon at xymon.com> To: "Xymon at xymon.com" <Xymon at xymon.com> Sent: Tuesday, November 11, 2014 2:39 PM Subject: [Xymon] creating custom graphs I have some Solaris servers that I can't install the xymon binaries on so I'm going to try writing my own scripts to replicate the default xymon data. I successfully tested sending messages directly to port 1984 from my client to my xymon server, but I'm not clear on how data that is in graphs is sent/generated. For instance, if I wanted to generate a cpu graph, I can send the cpu values but I'm not sure what I would then need to do in order to generate the rrd graphs. Can anyone point me toward any documentation for this? thanks, EJ _______________________________________________ Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon

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4.3.18 acknowledge.sh coredump
by sgb＠pics.com 13 Nov '14

13 Nov '14

About a week ago we upgraded from 4.1.2 to 4.3.17 we also migrated from an old RH3 server to a CentOS 7 with apache 2.4. Since then when we try to acknowledge an alert we receive the below error in the browser. Over the weekend I upgraded to 4.3.18 but that didn't change the behavior and we still receive the error. Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator at root at localhost to inform them of the time this error occurred, and the actions you performed just before this error. More information about this error may be available in the server error log. Here's the error log that details the error. /var/log/httpd/error_log [Mon Nov 10 10:51:30.278866 2014] [cgi:error] [pid 18672] [client x.x.x.x:64640] End of script output before headers: acknowledge.sh, referer: http://hostname.com:90/hobbit-seccgi/acknowledge.sh When I try to debug with the below script and pass it an alert number as a parameter, using the GET coredumps. When I try the "PUT", I receive a html page saying "No acks requested" export REQUEST_METHOD=GET #export REQUEST_METHOD=PUT export SCRIPT_NAME="acknowledge.sh" HNUM=$1 export QUERY_STRING="ACTION=Ack&DELAY=480&MESSAGE=AckByLink&NUMBER=${HNUM}&Send=Send" xymoncmd /home/xymon/xymon/cgi-secure/acknowledge.sh 2014-11-12 19:07:09 Using default environment file /home/xymon/xymon/server/etc/xymonserver.cfg ./atest.sh: line 7: 24228 Segmentation fault (core dumped) xymoncmd /home/xymon/xymon/cgi-secure/acknowledge.sh Thanks for your help Steve

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creating custom graphs
by ralphmitchell＠gmail.com 11 Nov '14

11 Nov '14

You might want to take a look at Jeremy Laidman's excellent xymon-rclient script: http://tools.rebel-it.com.au/xymon-rclient Nothing needs installing on the client server, as long as you can shell into it. The data for the various graphs are extracted from the client data message. Once you get the client data delivered properly, the graphs automagically appear. Ralph Mitchell On Tue, Nov 11, 2014 at 3:39 PM, Elizabeth Jones via Xymon <xymon at xymon.com> wrote: > _______________________________________________ > Xymon mailing list > Xymon at xymon.com > http://lists.xymon.com/mailman/listinfo/xymon > > > ---------- Forwarded message ---------- > From: Elizabeth Jones <oogiejonz at yahoo.com> > To: "Xymon at xymon.com" <Xymon at xymon.com> > Cc: > Date: Tue, 11 Nov 2014 12:37:00 -0800 > Subject: creating custom graphs > I have some Solaris servers that I can't install the xymon binaries on so > I'm going to try writing my own scripts to replicate the default xymon > data. I successfully tested sending messages directly to port 1984 from my > client to my xymon server, but I'm not clear on how data that is in graphs > is sent/generated. For instance, if I wanted to generate a cpu graph, I > can send the cpu values but I'm not sure what I would then need to do in > order to generate the rrd graphs. Can anyone point me toward any > documentation for this? > > thanks, > EJ > >

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