Nagios Support Forum

I just upgraded my XI to the latest version today on a centos 5 box, and the check_http is not responding the same on the upgrade as it used to.
so I went to an XI install that I did not upgrade, and the check worked fine

Example, older XI install (I have to remove the domain names etc

]# /usr/local/nagios/libexec/check_http -I lvsprdxxxapp02.gxxxt.net -k "Host: xxxman.gxxxt.net" -p 9201 -u /xxxmanJsp/CTdisplayxxxManLogin.jsp -e 200 -w 5 -c 10 -t 15 -m 100
HTTP OK: Status line output matched "200" - 6526 bytes in 0.152 second response time |time=0.152163s;5.000000;10.000000;0.000000 size=6526B;100;0;0

On the freshly upgraded XI
~]$ /usr/local/nagios/libexec/check_http -I lvsprdxxxapp02.gxxxt.net -k "Host: xxxxman.gxxxt.net" -p 9201 -u /xxxmanJsp/CTdisplayxxxManLogin.jsp -e 200 -w 5 -c 10 -t 15 -m 100
HTTP CRITICAL - Invalid HTTP response received from host on port 9201: HTTP/1.1 302 Moved Temporarily
HTTP/1.1 302 Moved Temporarily -

I physically went to the url and there was no 302

log% curl -I http://xx.xx.160.13:9201/xxxmanJsp/CTdi ... nLogin.jsp
HTTP/1.1 200 OK

I also rebooted the XI machine after the upgrade

for your standard questions
Version of the problem machine
Installed Version: 5.5.0
Last Update Check: 2018-07-02 16:15:34

CentOS Linux release 7.5.1804 (Core)

Problem XI
]$ /usr/local/nagios/libexec/check_http -V
check_http v2.2.1 (nagios-plugins 2.2.1)

Good XI
]# /usr/local/nagios/libexec/check_http -V
check_http v2.0.3 (nagios-plugins 2.0.3)

I believe you have to use the "-f" option now to follow the 302 redirect message whereas it is automatically doing this previously. Try the following:

/usr/local/nagios/libexec/check_http -I lvsprdxxxapp02.gxxxt.net -k "Host: xxxman.gxxxt.net" -p 9201 -u /xxxmanJsp/CTdisplayxxxManLogin.jsp -e 200 -w 5 -c 10 -t 15 -m 100 -f follow

Holy crap, that's over 1000 checks , I need to update
Do you have a changelog for the upgrade so I can see anything else that has changed?

The change log can be found at https://assets.nagios.com/downloads/nag ... NGES-5.TXT. That said, you could make this a quick change by editing the check_http command itself always use the "-f follow" option. The command can be edited under Configure > Core Config Manager > Commands > _Commands.

Ok Great,
so that's backwards compatible too with the older version of check_httpd?
sorry, today has been nothing but throw stuff over the way to my group, so everyone can take the holiday off, and I've not had time to test anything

Correct. It should work with the older versions too.

ok thank you, you can close this