Nagios Support Forum

Hi guys.

I believe I've discovered the issue. There isn't a software firewall, there is a physical firewall between the two subnets.

Thanks for all your help.

Derrick

detvmrh2 140.211 is the client.

[root@detvmrh2 ~]# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:50:56:9E:3D:88 inet addr:158.60.140.211 Bcast:158.60.140.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4606765924 errors:0 dropped:0 overruns:0 frame:0 TX packets:4954257593 errors:0 dropped:0 ov...

Client [root@detvmrh2 nrpe-2.15]# ps axuw | grep nrpe root 9384 0.0 0.0 61228 772 pts/1 S+ 16:00 0:00 grep nrpe [root@detvmrh2 nrpe-2.15]# netstat -at | grep nrpe tcp 0 0 *:nrpe *:* LISTEN Server [root@dethprh2 init.d]# nmap 158.60.146.211 -p 5666 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ )...

Sorry, was running the nmap command backward. [root@dethprh2 libexec]# nmap 158.60.140.211 5666 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2014-02-26 11:30 EST Failed to find device eth0 which was referenced in /proc/net/route Failed to find device eth0 which was referenced in /proc/net...

dethprh2 is the monitoring server [root@dethprh2 libexec]# /usr/local/nagios/libexec/check_nrpe -H 158.60.140.211 CHECK_NRPE: Socket timeout after 10 seconds. [root@dethprh2 libexec]# service iptables status Table: filter Chain INPUT (policy ACCEPT) num target prot opt source destination Chain FORWA...

detvmrh2 is the client [root@detvmrh2 ~]# service nrpe status nrpe: unrecognized service [root@detvmrh2 ~]# service xinetd status xinetd (pid 1560) is running... [root@detvmrh2 ~]# grep "only" /etc/xinetd.d/nrpe only_from = 127.0.0.1 158.60.146.196 [root@detvmrh2 ~]# service iptables statu...

No, the telnet from the nagios server to the client times out.

Hi guys, This is my first install of nagios for testing. I have just done a base install of nagios core and plugins on a new monitor server running red hat 5.4. The installation appeared to go fine without any errors. However after installing the NRPE on the monitor and a client server, I am getting...