DNS error
list Troy Adams
A couple of my xymonnet tests are reporting "DNS error".
There are no other details and the --no-ares xymonnet option didn't help.
Please help!
/ Troy
--
This communication is intended for the use of the recipient to whom it
is addressed, and may contain confidential, personal, and or privileged
information. Please contact us immediately if you are not the intended
recipient of this communication, and do not copy, distribute, or take
action relying on it. Any communications received in error, or
subsequent reply, should be deleted or destroyed.
---
list Troy Adams
This has been happening on many, but not all, of my http tests since 23:49:51 last night. cheers, Troy ----- Original Message ----- From: "Troy Adams" <user-81e3256385bc@xymon.invalid> To: "xymon" <xymon at xymon.com> Sent: Tuesday, April 16, 2013 10:40:57 AM GMT -07:00 US/Canada Mountain Subject: DNS error
▸
A couple of my xymonnet tests are reporting "DNS error".
There are no other details and the --no-ares xymonnet option didn't help.
Please help!
/Troy
--
This communication is intended for the use of the recipient to whom it
is addressed, and may contain confidential, personal, and or privileged
information. Please contact us immediately if you are not the intended
recipient of this communication, and do not copy, distribute, or take
action relying on it. Any communications received in error, or
subsequent reply, should be deleted or destroyed.
---
list Mike Burger
I have a similar situation for one particular system...in my case, it's likely an issue that the name I'm monitoring is actually a CNAME, and there are occasional timeouts when querying the server that's responsible for the domain where the CNAME record resides. My guess is that you're experiencing timeouts with DNS queries. If the "error" states don't last longer than a single polling interval, that's your likely culprit. -- Mike Burger http://www.bubbanfriends.org "It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1
▸
This has been happening on many, but not all, of my http tests since
23:49:51 last night.
cheers,
Troy
----- Original Message -----
From: "Troy Adams" <user-81e3256385bc@xymon.invalid>
To: "xymon" <xymon at xymon.com>
Sent: Tuesday, April 16, 2013 10:40:57 AM GMT -07:00 US/Canada Mountain
Subject: DNS error
A couple of my xymonnet tests are reporting "DNS error".
There are no other details and the --no-ares xymonnet option didn't help.
Please help!
/Troy
--
This communication is intended for the use of the recipient to whom it
is addressed, and may contain confidential, personal, and or
privileged
information. Please contact us immediately if you are not the intended
recipient of this communication, and do not copy, distribute, or take
action relying on it. Any communications received in error, or
subsequent reply, should be deleted or destroyed.
---
list David Mills
Troy – If you need extra help tracking down what’s happening with the xymonnet process, don’t forget about the “--debug" and “--dump" options to include in the tasks.cfg file for “[xymonnet]”. This was very useful for me in tracking down what was going on in my environment recently. E.g. xymonnet '--report' '--ping' '--checkresponse' '--timeout=25' '--dns-timeout=2' '--dnslog=/var/log/xymon-4.3.3/dns.log' '--concurrency=5' '--debug' '--dump=both david
▸
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Troy Adams
Sent: Tuesday, April 16, 2013 11:41 AM
To: xymon
Subject: EXT :[Xymon] DNS error
A couple of my xymonnet tests are reporting "DNS error".
There are no other details and the --no-ares xymonnet option didn't help.
Please help!
/Troy
This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.
list Troy Adams
Thanks Mike. cheers, Troy ----- Original Message ----- From: "Mike Burger" <user-cc5c6e80f4c5@xymon.invalid> To: "Troy Adams" <user-81e3256385bc@xymon.invalid> Cc: "xymon" <xymon at xymon.com> Sent: Tuesday, April 16, 2013 11:22:27 AM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] DNS error
▸
I have a similar situation for one particular system...in my case, it's likely an issue that the name I'm monitoring is actually a CNAME, and there are occasional timeouts when querying the server that's responsible for the domain where the CNAME record resides. My guess is that you're experiencing timeouts with DNS queries. If the "error" states don't last longer than a single polling interval, that's your likely culprit. -- Mike Burger http://www.bubbanfriends.org "It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1
This has been happening on many, but not all, of my http tests since 23:49:51 last night. cheers, Troy ----- Original Message ----- From: "Troy Adams" <user-81e3256385bc@xymon.invalid> To: "xymon" <xymon at xymon.com> Sent: Tuesday, April 16, 2013 10:40:57 AM GMT -07:00 US/Canada Mountain Subject: DNS error A couple of my xymonnet tests are reporting "DNS error". There are no other details and the --no-ares xymonnet option didn't help. Please help! /Troy -- This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed. ---
list Troy Adams
Thanks David. I will dig further with the new information you folks have given. cheers, Troy ----- Original Message ----- From: "David Mills (IS)" <user-eb64c112f0e9@xymon.invalid> To: "Troy Adams" <user-81e3256385bc@xymon.invalid>, "xymon" <xymon at xymon.com> Sent: Tuesday, April 16, 2013 11:29:30 AM GMT -07:00 US/Canada Mountain Subject: RE: EXT :[Xymon] DNS error
▸
Troy –
If you need extra help tracking down what’s happening with the xymonnet process, don’t forget about the “--debug" and “--dump" options to include in the tasks.cfg file for “[xymonnet]”. This was very useful for me in tracking down what was going on in my environment recently.
E.g.
xymonnet '--report' '--ping' '--checkresponse' '--timeout=25' '--dns-timeout=2' '--dnslog=/var/log/xymon-4.3.3/dns.log' '--concurrency=5' '--debug' '--dump=both
david
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Troy Adams Sent: Tuesday, April 16, 2013 11:41 AM To: xymon Subject: EXT :[Xymon] DNS error
A couple of my xymonnet tests are reporting "DNS error".
There are no other details and the --no-ares xymonnet option didn't help.
Please help!
/Troy
This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.
list Jeremy Laidman
On 17 April 2013 02:51, Troy Adams <user-81e3256385bc@xymon.invalid> wrote:
A couple of my xymonnet tests are reporting "DNS error".
I use "testip" on pretty much all my hosts, and have explicit tests for important DNS names. I don't think it's helpful for a service to be reported as unavailable, or not even tested, because a DNS lookup fails. (You can also run xymonnet with "--dns=ip" to get the same effect for network tests.) However the "testip" and "--dns=ip" settings don't apply to web tests. Instead, you use a special syntax in hosts.cfg, for example: 10.1.2.3 # webserver1.example.com http://web1.example.com= 10.1.2.3/cgi-bin/testthis J