<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 10"> <meta name=Originator content="Microsoft Word 10"> <link rel=File-List href="cid:filelist.xml@01C4FE24.09596DB0"> <link rel=Edit-Time-Data href="cid:editdata.mso@01C4FE24.09596DB0"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="time"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="date"/>  <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple style='tab-interval:.5in'> <div class=Section1> Rudy,<o:p></o:p> <o:p> </o:p> I have tried using your recommendation below with no success. Here's what I have in my configuration files now.<o:p></o:p> <o:p> </o:p> Hostb(running Nagios)<o:p></o:p> Services.cfg: check_command check_nrpe!check_disk1<o:p></o:p> Checkcommands.cfg: command_line $USER1$/check_nrpe $HOSTADDRESS$ -c $ARG1$<o:p></o:p> <o:p> </o:p> Hosta(running NRPE)<o:p></o:p> Nrpe.cfg: command[check_disk1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /var<o:p></o:p> <o:p> </o:p> I can manually make a call from hostb to hosta using the correct UID/GID and get an answer. <o:p></o:p> /usr/local/nagios/libexec/check_nrpe hosta -c check_disk1<o:p></o:p> DISK OK [6322784 kB (75%) free on /dev/sdb1]<o:p></o:p> <o:p> </o:p> It's only when the Nagios daemon does the monitoring that's when it shows "Unable to read output." Please let me know if you have any other thoughts.<o:p></o:p> <o:p> </o:p> Thanks,<o:p></o:p> Tom<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> -----Original Message----- From: Rudy Montemayor [mailto:RMontemayor@huntoil.com] Sent: <st1:date Month="1" Day="18" Year="2005">Tuesday, January 18, 2005</st1:date> <st1:time Hour="8" Minute="3">8:03 AM</st1:time> To: Tom Luong; nagiosplug-help@lists.sourceforge.net Subject: RE: [Nagiosplug-help] odd nrpe and check_disk issue <o:p> </o:p> Tom,<o:p></o:p> <o:p></o:p> I not sure if you have gotten any feedback on your problem/question, but try doing "/usr/local/nagios/libexec/check_disk --help"; this will maybe show you where you may be going wrong. Also what does your "check_command" in the service definition look like for checking /var on hosta in your services.cfg file and then verify that command name in your checkcommands.cfg file.<o:p></o:p> <o:p></o:p> If I'm reading your email correctly it appears that you have hard coded the "80 90 /var" into the nrpe.cfg file in hosta, usually these are arguments that are passed to it so that the same command can be used for other filesystems (/opt, /usr, etc.). <o:p></o:p> <o:p></o:p> Usage: check_disk -w limit -c limit [-p path]<o:p></o:p> <o:p></o:p> The "limit" can be either in kilobytes or in percentage (%). So if you want Warning at 80% full and Critical at 90% full the command would look like:<o:p></o:p> <o:p></o:p> check_disk -w 20% -c 10% -p /var<o:p></o:p> <o:p></o:p> I hope some of this helps.<o:p></o:p> <o:p></o:p> Rudy<o:p></o:p> <o:p></o:p> <o:p></o:p> <o:p> </o:p> <div class=MsoNormal align=center style='margin-left:.5in;text-align:center'> <hr size=2 width="100%" align=center> </div> From: nagiosplug-help-admin@lists.sourceforge.net [mailto:nagiosplug-help-admin@lists.sourceforge.net] On Behalf Of Tom Luong Sent: <st1:date Month="1" Day="14" Year="2005">Friday, January 14, 2005</st1:date> <st1:time Hour="20" Minute="9">8:09 PM</st1:time> To: 'nagiosplug-help@lists.sourceforge.net' Subject: [Nagiosplug-help] odd nrpe and check_disk issue<o:p></o:p> Hello,<o:p></o:p> <o:p> </o:p> I have a really odd one here. I can't get the status of a check_disk from a remote host. The commands seem to work with I run them manually but Nagios can't seem to make out that response from the remote host.<o:p></o:p> <o:p> </o:p> Facts:<o:p></o:p> <![if !supportLists]>1. <![endif]>I can manually run check_disk on my client box(hosta) to get an answer <o:p></o:p> [root@hosta]# /usr/local/nagios/libexec/check_disk 80 90 /var<o:p></o:p> DISK OK - [6142028 kB (73%) free on /dev/sdb1]<o:p></o:p> <![if !supportLists]>2. <![endif]>manually run check_nrpe on my Nagios server(hostb) as Nagios user and successfully retrieve a responsys from hosta <o:p></o:p> [nagios@hostb]# /usr/local/nagios/libexec/check_nrpe hosta -c check_disk1<o:p></o:p> DISK OK [4490880 kB (53%) free on /dev/sdb1]<o:p></o:p> <![if !supportLists]>3. <![endif]>both my check_nrpe and nrpe are: <o:p></o:p> Version: 1.5<o:p></o:p> Last Modified: <st1:date Month="6" Day="3" Year="2002">06-03-2002</st1:date><o:p></o:p> License: GPL<o:p></o:p> <![if !supportLists]>4. <![endif]>command in my nrpe.cfg: command[check_disk1]=/usr/local/nagios/libexec/check_disk 80 90 /var <o:p></o:p> <o:p> </o:p> Issue:<o:p></o:p> <![if !supportLists]>1. <![endif]>Nagios Service Details page shows "Unable to read output" <o:p></o:p> <![if !supportLists]>2. <![endif]>I want Nagios to be able to check disk space on the remote hosts <o:p></o:p> <o:p> </o:p> <o:p> </o:p> What I have done so far to try to resolve this without success:<o:p></o:p> <![if !supportLists]>1. <![endif]>I have tried changing the syntax of the check_disk command to <o:p></o:p> command[check_disk1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /var<o:p></o:p> <![if !supportLists]>2. <![endif]>check permission of user on server and remote host running check_nrpe and nrpe <o:p></o:p> <o:p> </o:p> <o:p> </o:p> Has anymore experience with this? <o:p></o:p> <o:p> </o:p> Thanks in advance for your help.<o:p></o:p> Tom<o:p></o:p> <o:p> </o:p> </div> </body> </html>