Bug 2251959

Summary:	For certain lengths of names dig plugin fails to find addresses
Product:	[Fedora] Fedora	Reporter:	Petr Menšík <pemensik>
Component:	nagios-plugins	Assignee:	Guido Aulisi <guido.aulisi>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	38	CC:	guido.aulisi, igor.raits, lemenkov, rs, smooge
Target Milestone:	---	Keywords:	Regression
Target Release:	---
Hardware:	Unspecified
OS:	Linux
URL:	https://github.com/nagios-plugins/nagios-plugins/pull/745
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	2251960 (view as bug list)		Environment:
Last Closed:	2024-05-31 09:07:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2251960

Description Petr Menšík 2023-11-28 16:37:05 UTC

During report on bind-utils for RHEL9, it were found dig plugin fails to correctly match name looked for.

It depends on wrong assumption that each record type is delimited by tab. That is not necessary the case.

https://github.com/nagios-plugins/nagios-plugins/pull/745

Reproducible: Always

Steps to Reproduce:
1. dnf install bind-utils nagios-plugins dnsmasq
2. echo 'address=/12-345678example.com/172.23.75.243' > /etc/dnsmasq.d/long.conf
3. systemctl restart dnsmasq
4. /usr/lib64/nagios/plugins/check_dig  -l lxos-monitoring-probe.12-345678example.com -a 172.23.75.243
Actual Results:  
# /usr/lib64/nagios/plugins/check_dig  -l lxos-monitoring-probe.12-345678example.com -a 172.23.75.243
DNS WARNING - 0.012 seconds response time (Server not found in ANSWER SECTION)|time=0.011995s;;;0.000000


Expected Results:  
$ ./check_dig -l lxos-monitoring-probe.12-345678example.com -a 172.23.75.243 -t 600
DNS OK - 0,044 seconds response time (lxos-monitoring-probe.12-345678example.com. 10 IN A 172.23.75.243)|time=0,044113s;;;0,000000


Caused by commit https://github.com/nagios-plugins/nagios-plugins/commit/cbdfd8a9bd83ed22dc6e9b3e5104ed81de388596

Comment 1 Robert Story 2024-03-27 15:42:51 UTC

There are other bugs in nagios check_dig plugin in 2.4.8 (regardless of OS; I see them on CentOS 7). I just submitted these this morning:

- check_dig: 2.4.8 broke monitoring of the root zone (.)
https://github.com/nagios-plugins/nagios-plugins/issues/760

- check_dig: 2.4.8 not checking for record type in the answer
https://github.com/nagios-plugins/nagios-plugins/issues/761

Comment 2 Aoife Moloney 2024-05-31 09:07:49 UTC

Fedora Linux 38 entered end-of-life (EOL) status on 2024-05-21.

Fedora Linux 38 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

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