Nagios Support Forum

Posted: **Wed May 14, 2014 11:26 am**

Sorry for the long delay. I did a fresh install of CentOS 6.5, installed Nagios using the link listed in an earlier post, tried to access the web page and chrome gave me this (with and without /nagios):

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Oops! Google Chrome could not connect to 192.168.2.25

I have several httpd processes running:

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[root@FreeNag ~]# ps aux | grep httpd
root      6823  0.0  0.1 235276  8292 ?        Ss   May13   0:00 /usr/sbin/httpd
apache    6865  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6866  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6867  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6868  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6869  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6870  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6871  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
apache    6872  0.0  0.0 235276  5504 ?        S    May13   0:00 /usr/sbin/httpd
root     14853  0.0  0.0 103256   824 pts/0    S+   09:18   0:00 grep httpd
[root@FreeNag ~]#

Selinux has been disabled:

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[root@FreeNag ~]# getenforce
Disabled
[root@FreeNag ~]#

and the only open port is 22:

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Nmap scan report for freenag.domain.com (192.168.2.25)

Host is up (0.0013s latency).

Not shown: 65534 filtered ports

PORT   STATE SERVICE

22/tcp open  ssh

MAC Address: 00:19:BB:33:AD:BA (Hewlett-Packard Company)

Is there a "common knowledge" step for getting port 80 open that I may be missing? I won't view ANY responses as condescension so please feel free to "post 'em if you got 'em."

Thanks,

Joe b

Posted: **Wed May 14, 2014 3:16 pm**

From what I'm seeing everything should be working, this and previous diagnostic steps:

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[root@FreeNag ~]# netstat -l | grep http
tcp        0      0 *:http                      *:*                         LISTEN
[root@FreeNag ~]#

Hmmm...

Thanks,

Joe B

Posted: **Wed May 14, 2014 3:23 pm**

Run:

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iptables -I INPUT -p tcp -m state --state NEW --dport 80 -j ACCEPT
service iptables save

Check iptables to make sure the rule was added:

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iptables -L -n

Posted: **Wed May 14, 2014 3:31 pm**

YES!!!!!! Thank you lmiltchev, that did the trick! I thought it had to be firewall-related but I didn't realize iptables was active by default. Now I can get on with my install.

Thanks again,

Joe B

Nagios Support Forum

[Solved] Can't connect to the web page

Re: Can't connect to the web page

Re: Can't connect to the web page

Re: Can't connect to the web page

Re: Can't connect to the web page