nagios using nsca

Download package and Install nsca package

nagios-nsca-2.7.2-2.el5.rf.x86_64.rpm 
libmcrypt-2.5.7-1.2.el5.rf.i386.rpm 
nagios-nsca-client-2.7.2-2.el5.rf.i386.rpm 

Install the package

[root@fazries.com nagios]# yum localinstall nagios-nsca-2.7.2-2.el5.rf.x86_64.rpm libmcrypt-2.5.7-1.2.el5.rf.i386.rpm nagios-nsca-client-2.7.2-2.el5.rf.i386.rpm 

configure nsca server, at nsca.conf

server_port=5667 
command_file=/var/nagios/rw/nagios.cmd 
alternate_dump_file=/var/nagios/rw/nsca.dump 
aggregate_writes=0 
append_to_file=0 
max_packet_age=30 

chown nsca.cfg

[root@fazries.com nagios]# chown nagios:nagios nsca.cfg 

configure xinetd

 
[root@fazries.com xinetd.d]# pwd 
/etc/xinetd.d 
[root@fazries.com xinetd.d]# cat nsca 
# default: off 
# description: NSCA (Nagios Service Check Acceptor) 
service nsca 
{ 
        flags = REUSE 
        type = UNLISTED 
        port = 5667 
        socket_type = stream 
        wait = no 
        user = nagios 
        group = nagios 
        server = /usr/sbin/nsca 
        server_args = -c /etc/nagios/nsca.cfg --inetd 
        log_on_failure += USERID 
        disable = no 
        only_from = 127.0.0.1 
} 

Add nsca services

[root@fazries.com xinetd.d]# vi /etc/services 
nsca 5667/tcp # NSCA 
[root@fazries.com xinetd.d]# /etc/init.d/xinetd restart 
Stopping xinetd: [FAILED] 
Starting xinetd: [ OK ] 

Cek active port

[root@fazries.com xinetd.d]# netstat -tnl | grep 5667 
tcp 0 0 0.0.0.0:5667 0.0.0.0:* LISTEN 

Adding Host for nagios

[root@fazries.com objects]# touch host.cfg 
[root@fazries.com objects]# vim host.cfg 
[root@fazries.com objects]# cat host.cfg 
define host 
{ 
use generic-host 
host_name localhost 
address 127.0.01 
active_checks_enabled 0 
passive_checks_enabled 1 
} 

[root@fazries.com objects]# chown nagios:nagios host.cfg 
[root@fazries.com objects]# chmod 664 host.cfg 
[root@fazries.com objects]# pwd 
/etc/nagios/objects 
[root@fazries.com objects]# chcon --reference=commands.cfg * 

Restart nsca services

[root@fazries.com objects]# /etc/init.d/nsca start 
Starting Nagios NSCA daemon (nsca): [ OK ] 
[root@fazries.com objects]# /etc/init.d/nagios start 
nagios is stopped 
Configuration validation failed [FAILED] 
[root@fazries.com objects]# setenforce 0 
[root@fazries.com objects]# /etc/init.d/nagios start 
nagios is stopped 
Starting nagios: [ OK ]