check_http: Invalid option - SSL is not available

[rlevick]

So I have a number of local sites that use SSL. I edited the default check_http command and ran it manually. On my old Nagios server it works, not on the new.

/usr/local/nagios/libexec/check_http -H <server> -S -w 30 -c 120
HTTP OK - HTTP/1.1 302 Found - 0.059 second response time |time=0.058508s;30.000000;120.000000;0.000000 size=209B;;;0

# /usr/local/nagios/libexec/check_http -H <server> -S -w 30 -c 120
check_http: Invalid option - SSL is not available

[abrist]

First, make sure the server supports ssl:

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nmap <server> -p 443

And lets check where your ssl bin is:

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which openssl

[tmcdonald]

Assuming a RHEL or CentOS installation:

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yum -y install openssl openssl-devel
cd /tmp
wget http://www.nagios-plugins.org/download/nagios-plugins-1.5.tar.gz
tar xzf nagios-plugins-1.5.tar.gz
cd nagios-plugins-1.5
./configure --with-openssl
make all
make install

This assumes you have all the standard gcc, make, etc. available.

[rlevick]

]# nmap <server> -p 443

Starting Nmap 5.51 ( http://nmap.org ) at 2014-02-05 11:02 CST
Nmap scan report for <server>1 (172.xx.xx.xx)
Host is up (0.00061s latency).
rDNS record for 172.xx.xx.xx: <server>
PORT STATE SERVICE
443/tcp open https

Nmap done: 1 IP address (1 host up) scanned in 0.15 seconds
[root@vfcmon-01 servers]# which openssl
/usr/bin/openssl

[tmcdonald]

I might also add that you need openssl-devel as well, if you don't already. I updated my post to reflect this.

[rlevick]

So I still need to install the plugins with openssl?

[tmcdonald]

So I still need to install the plugins with openssl?

Recompile, but basically yes.

[rlevick]

What?

[root@vfcmon-01 tmp]# http://www.nagios-plugins.org/download/ ... 1.5.tar.gz
-bash: http://www.nagios-plugins.org/download/ ... 1.5.tar.gz: No such file or directory

[slansing]

You need to wget the tarball:

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wget http://www.nagios-plugins.org/download/nagios-plugins-1.5.tar.gz

[rlevick]

Sweet! It's working. Thank you!