issue with the Nagios

[h.sabrey]

as i'm somehow new in linux, and i'm required to install a monitoring system to our company using CentOS7 with LAMP & the monitoring Application NAGIOS.

after installation everything goes well, until the installation of the TeamViewer then the nagios stopped and other issues happened thus this quesion(s) comes up.

1- apache service is confirmed running by

Code: Select all

service httpd status

the following was the result

Code: Select all

httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled)
   Active: active (running) since Sun 2015-12-06 22:29:35 EET; 9h ago
  Process: 27173 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=0/SUCCESS)
  Process: 3015 ExecReload=/usr/sbin/httpd $OPTIONS -k graceful (code=exited, status=0/SUCCESS)
  Main PID: 27179 (httpd)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
   CGroup: /system.slice/httpd.service
           ├─ 3032 /usr/sbin/httpd -DFOREGROUND
           ├─ 3033 /usr/sbin/httpd -DFOREGROUND
           ├─ 3034 /usr/sbin/httpd -DFOREGROUND
           ├─ 3035 /usr/sbin/httpd -DFOREGROUND
           ├─ 3036 /usr/sbin/httpd -DFOREGROUND
           └─27179 /usr/sbin/httpd -DFOREGROUND

but when trying to access the server http://192.168.1.7 there is no page to load ???

2- for Nagios, when checking the status it is running normally similar to the apache step, but when accessing the web http://192.168.1.7/nagios not webpage page to load ????

3- how to confirm that the apache and the nagios are autorun as a service after the server reboots?

[hsmith]

How did you install Nagios?

Source? Repo? Guide? If so, please link it.

It was working until you installed TeamViewer? Can you please go into more depth regarding this?

2- for Nagios, when checking the status it is running normally similar to the apache step, but when accessing the web http://192.168.1.7/nagios not webpage page to load ????

Is there a firewall running on your server?

Code: Select all

systemctl status firewalld

how to confirm that the apache and the nagios are autorun as a service after the server reboots?

Code: Select all

systemctl is-enabled httpd
systemctl is-enabled nagios

[h.sabrey]

Nagios installation guide
https://www.youtube.com/watch?v=hQeVkapSaqM

firewall status :

Code: Select all

systemctl status firewalld
         firewalld.service - firewalld - dynamic firewall daemon
             Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
            Active: active (running) since Wed 2015-11-04 12:57:22 EET; 1 months 3 days ago
         Main PID: 692 (firewalld)
         CGroup: /system.slice/firewalld.service
                      └─692 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

for confirmation :

Code: Select all

$ system is-enabled httpd
bash: system: command not found...
[sysadmin@nagos-server ~]$ systemctl is-enabled httpd
disabled

Code: Select all

$ systemctl is-enabled nagios
nagios.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig nagios --level=5
enabled

[mleo40]

your apache isn't running.

/etc/init.d/apache start (it might be /etc/init.d/httpd start...not overly familiar with CentOS)

[hsmith]

/etc/init.d/apache start (it might be /etc/init.d/httpd start...not overly familiar with CentOS)

it's httpd

service httpd status will tell you whether or not it is running as well.

[h.sabrey]

friends,

for now i've added the httpd to the systemctl auto run by

Code: Select all

# systemctl enable httpd.service

but still not able to connect to nagios web portal

BTW i'm receiving emails from nagios as notification of one device which is not in my network ????

[mleo40]

that command only enables the service at boot time, it doesn't actually start it

try systemctl start httpd.service

[rkennedy]

Can you post the output of the following command -

Code: Select all

netstat -anp|grep :80

[h.sabrey]

[

Can you post the output of the following command -

Code: Select all

netstat -anp|grep :80

Code: Select all

# netstat -anp|grep :80
tcp6       0      0 :::80                   :::*                    LISTEN      3032/httpd 

[mleo40]

Working output:

# netstat -anp|grep :80
tcp 0 0 :::80 :::* LISTEN 13150/httpd

your machine is only listening on ipv6 ... ? That is strange