[Xymon] tcp traceroute

[Troy Adams]

Let's say an HTTP test fails but the conn test for the same host still works . What I 
want to do at that point, is a tcptraceroute. I need to know where TCP/80 is getting 
stuck. 


/ Troy 



----- Original Message ----- 
From: cleaver at terabithia.org 
To: "Troy Adams" <troy at athabascau.ca>, me at tdiehl.org 
Cc: "Xymon Email List" <xymon at xymon.com> 
Sent: Thursday, May 30, 2013 4:06:11 PM GMT -07:00 US/Canada Mountain 
Subject: Re: [Xymon] tcp traceroute 



> On Thu, 30 May 2013, Troy Adams wrote: 
> 
>> In the same way that the conn test can be asked to "trace" by performing 
>> a 
>> traceroute upon failure, I would like to perform a TCP traceroute when a 
>> TCP test fails with "no route to host". I expect this isn't built right 
>> into Xymon now but has anybody got any pointers on what to hack to 
>> implement this myself? 
> 
> Magic built in not tacked on later!! 
> 
> From the hosts.cfg man page: 
> 
> trace 
> If the connectivity test fails, run a "traceroute" and include the 
> output 
> from this in the status message from the failed connectivity test. 
> Note: 
> For this to work, you may have to define the TRACEROUTE environment 
> variable, see xymonserver.cfg(5) 
> 
> Is that what you are looking for? 
> 
> -- 

"trace" in hosts.cfg and a suitable entry in xymonserver.cfg should be all 
you need. (You can also just add --trace to the xymonnet options in 
tasks.cfg.) Since you're running as the 'xymon' user (presumably), don't 
forget privilege escalation for traceroute in TCP mode. 


tasks.cfg: CMD xymonnet --report --ping --trace --checkresponse 
xymonserver.cfg:TRACEROUTE="sudo /bin/traceroute -I" 


HTH, 

-jc 



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