<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:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style></style></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1>How did you get the –u switch to appear on check_by_ssh?<o:p></o:p><o:p> </o:p>Mine does not seem to have this, this is the output of –h for my plugin.<o:p></o:p><o:p> </o:p>check_by_ssh v2002 (nagios-plugins 1.4.13)<o:p></o:p>Copyright (c) 1999 Karl DeBisschop <kdebisschop@users.sourceforge.net><o:p></o:p>Copyright (c) 2000-2008 Nagios Plugin Development Team<o:p></o:p> <nagiosplug-devel@lists.sourceforge.net><o:p></o:p><o:p> </o:p>This plugin uses SSH to execute commands on a remote host<o:p></o:p><o:p> </o:p>Usage: check_by_ssh -H <host> -C <command> [-fqv] [-1|-2] [-4|-6]<o:p></o:p> [-S [lines]] [-E [lines]] [-t timeout] [-i identity]<o:p></o:p> [-l user] [-n name] [-s servicelist] [-O outputfile]<o:p></o:p> [-p port] [-o ssh-option]<o:p></o:p><o:p> </o:p>Options:<o:p></o:p> -h, --help<o:p></o:p> Print detailed help screen<o:p></o:p> -V, --version<o:p></o:p> Print version information<o:p></o:p> --extra-opts=[section][@file]<o:p></o:p> Read additionnal options from ini file<o:p></o:p> -H, --hostname=ADDRESS<o:p></o:p> Host name, IP Address, or unix socket (must be an absolute path)<o:p></o:p> -p, --port=INTEGER<o:p></o:p> Port number (default: none)<o:p></o:p> -4, --use-ipv4<o:p></o:p> Use IPv4 connection<o:p></o:p> -6, --use-ipv6<o:p></o:p> Use IPv6 connection<o:p></o:p> -1, --proto1<o:p></o:p> tell ssh to use Protocol 1 [optional]<o:p></o:p> -2, --proto2<o:p></o:p> tell ssh to use Protocol 2 [optional]<o:p></o:p> -S, --skip-stdout[=n]<o:p></o:p> Ignore all or (if specified) first n lines on STDOUT [optional]<o:p></o:p> -E, --skip-stderr[=n]<o:p></o:p> Ignore all or (if specified) first n lines on STDERR [optional]<o:p></o:p> -f<o:p></o:p> tells ssh to fork rather than create a tty [optional]. This will always return OK if ssh is executed<o:p></o:p> -C, --command='COMMAND STRING'<o:p></o:p> command to execute on the remote machine<o:p></o:p> -l, --logname=USERNAME<o:p></o:p> SSH user name on remote host [optional]<o:p></o:p> -i, --identity=KEYFILE<o:p></o:p> identity of an authorized key [optional]<o:p></o:p> -O, --output=FILE<o:p></o:p> external command file for nagios [optional]<o:p></o:p> -s, --services=LIST<o:p></o:p> list of nagios service names, separated by ':' [optional]<o:p></o:p> -n, --name=NAME<o:p></o:p> short name of host in nagios configuration [optional]<o:p></o:p> -o, --ssh-option=OPTION<o:p></o:p> Call ssh with '-o OPTION' (may be used multiple times) [optional]<o:p></o:p> -q, --quiet<o:p></o:p> Tell ssh to suppress warning and diagnostic messages [optional]<o:p></o:p> -w, --warning=DOUBLE<o:p></o:p> Response time to result in warning status (seconds)<o:p></o:p> -c, --critical=DOUBLE<o:p></o:p> Response time to result in critical status (seconds)<o:p></o:p> -t, --timeout=INTEGER<o:p></o:p> Seconds before connection times out (default: 10)<o:p></o:p> -v, --verbose<o:p></o:p> Show details for command-line debugging (Nagios may truncate output)<o:p></o:p><o:p> </o:p> The most common mode of use is to refer to a local identity file with<o:p></o:p> the '-i' option. In this mode, the identity pair should have a null<o:p></o:p> passphrase and the public key should be listed in the authorized_keys<o:p></o:p> file of the remote host. Usually the key will be restricted to running<o:p></o:p> only one command on the remote server. If the remote SSH server tracks<o:p></o:p> invocation arguments, the one remote program may be an agent that can<o:p></o:p> execute additional commands as proxy<o:p></o:p><o:p> </o:p> To use passive mode, provide multiple '-C' options, and provide<o:p></o:p> all of -O, -s, and -n options (servicelist order must match '-C'options)<o:p></o:p><o:p> </o:p>Examples:<o:p></o:p> $ check_by_ssh -H localhost -n lh -s c1:c2:c3 -C uptime -C uptime -C uptime -O /tmp/foo<o:p></o:p> $ cat /tmp/foo<o:p></o:p> [1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c1;0; up 2 days<o:p></o:p> [1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c2;0; up 2 days<o:p></o:p> [1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c3;0; up 2 days<o:p></o:p><o:p> </o:p>Notes:<o:p></o:p> See: http://nagiosplugins.org/extra-opts for --extra-opts usage and examples.<o:p></o:p><o:p> </o:p>Send email to nagios-users@lists.sourceforge.net if you have questions<o:p></o:p>regarding use of this software. To submit patches or suggest improvements,<o:p></o:p>send email to nagiosplug-devel@lists.sourceforge.net<o:p></o:p><o:p> </o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>From: Valerio.FABRIZIO@sungard.com [mailto:Valerio.FABRIZIO@sungard.com] Sent: May/26/2010 10:54 PM To: nagiosplug-help@lists.sourceforge.net Subject: [Nagiosplug-help] R: check_by_ssh timed out issue<o:p></o:p></div></div><o:p> </o:p><o:p> </o:p><o:p> </o:p>Hi<o:p></o:p>I’ve had the same problem with some remote checks, I solved it by adding a “-u” in the command. (“u” turns a time out critical into a time out unknown message). This works only if your plugin accept this value. <o:p></o:p><o:p> </o:p><o:p> </o:p>Regards <o:p></o:p>Valerio<o:p></o:p><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div>Da: Mirza Dedic [mailto:mirde@oppy.com] Inviato: giovedì 27 maggio 2010 5.18 A: 'Nagios Plugin Help List' Oggetto: Re: [Nagiosplug-help] check_by_ssh timed out issue<o:p></o:p></div><o:p> </o:p>I get that, but with the check script the “timed out” warning comes back as a critical.<o:p></o:p><o:p> </o:p>I might be stuck with this as there is no “switch” to add to check_by_ssh for timed out values to not raise a critical condition as I’ve seen in some other scripts.<o:p></o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>From: Tony Parsonage [mailto:TParsonage@thiess.com.au] Sent: May/26/2010 5:02 PM To: Nagios Plugin Help List Subject: Re: [Nagiosplug-help] check_by_ssh timed out issue<o:p></o:p></div></div><o:p> </o:p>You should be able to set the alert so that if you get an ‘unknown’ response then will not alert. I am unsure where this is set on the command line, my copy of Groundworks uses a web browser front end and it is set as below:<o:p></o:p><o:p> </o:p><img width=393 height=141 id="Picture_x005f_x0020_1" src="cid:image001.jpg@01CAFD6B.D8F67940"><o:p></o:p><o:p> </o:p>If I untick the box for ‘unknown’ then save your configuration then I only get emails for Warning and Critical alerts.<o:p></o:p><o:p> </o:p><div>Tony <o:p></o:p></div><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>From: Mirza Dedic [mailto:mirde@oppy.com] Sent: Thursday, 27 May 2010 9:50 AM To: 'nagiosplug-help@lists.sourceforge.net' Subject: [Nagiosplug-help] check_by_ssh timed out issue<o:p></o:p></div></div><o:p> </o:p>Hi List,<o:p></o:p><o:p> </o:p>I have Nagios currently using check_by_ssh (check_by_ssh v2002 (nagios-plugins 1.4.13)) to check some of my remote servers, it calls a log script on the remote server and the log script returns a warning if the log files matches the criteria.<o:p></o:p><o:p> </o:p>Every now and then, the check_by_ssh script gets timed out, and returns the message below.<o:p></o:p><o:p> </o:p>Is there a way to suppress this at the Nagios box, so that Plugin Timed Out messages do not get emailed as “Critical”?<o:p></o:p><o:p> </o:p>Anyone know? Below is my command definition..<o:p></o:p><o:p> </o:p>define command{<o:p></o:p> command_name van-oppy-pro_data450<o:p></o:p> command_line $USER1$/check_by_ssh -H someserver -p 22 -i /home/nagios/.ssh/id_dsa -t 10 -C "/home/nagios/plugins/check_logfiles -t 30 -f /home/nagios/log_conf/usr1_data450.lg"<o:p></o:p>}<o:p></o:p><o:p> </o:p>Nagios alert returned when the box being queried is very busy (this does not happen often, but creates a unwanted false positive warning):<o:p></o:p><o:p> </o:p>CRITICAL - Plugin timed out while executing system call<o:p></o:p><o:p> </o:p><o:p> </o:p>Click <a href="https://www.mailcontrol.com/sr/wQw0zmjPoHdJTZGyOCrrhg==">here</a> to report this email as spam.<o:p></o:p><pre>The Oppenheimer Group ---- CONFIDENTIAL<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. 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