RHEL 5.5 安装 Nagios 3.2.3
安装好RHEL 5.5基础版后，我事先将光盘作为yum源，具体看本人之前随笔。相关rpm可在http://pkgs.repoforge.org/查找，个别缺失用google吧。监控主机HostA：
[*]#yum install httpd php gd
[*]#rpm -ivh nagios-3.2.3-3.el5.rf.i386.rpm nagios-plugins-1.4.9-1.el5.rf.i386.rpm nagios-plugins-nrpe-2.5.2-1.el5.rf.i386.rpm nagios-plugins-setuid-1.4.9-1.el5.rf.i386.rpm nginx-1.2.0-1.el5.ngx.i386.rpm perl-Crypt-DES-2.05-3.2.el5.rf.i386.rpm perl-Digest-HMAC-1.02-1.el5.rf.noarch.rpm perl-Digest-SHA1-2.13-1.el5.rfx.i386.rpm perl-Net-SNMP-5.2.0-1.2.el5.rf.noarch.rpm perl-Socket6-0.23-1.el5.rfx.i386.rpm
[*]#htpasswd -bc /etc/nagios/htpasswd.users nagiosadmin password
[*]#setenforce 0或者修改/etc/selinux/config使之永久有效
[*]#chkconfig --level 345 httpd on
[*]#chkconfig --level 345 nagios on
[*]#reboot
[*]#http://HostA/nagios
被控Windows主机HostB：
[*]http://nsclient.org/nscp/downloads 下载最新NSClient++，并安装
[*]注意安装目录下NSC.ini中的
[*]
[*]allowed_hosts=
[*]password=
[*]
[*]port=5666
[*]#vi /etc/nagios/nagios.cfg
[*]cfg_file=/usr/local/nagios/etc/objects/windows.cfg
[*]windows.cfg
[*]修改主机对象 host_name,alias,address
[*]验证，重启nagios
被控Linux主机HostC：
[*]# rpm -ivh nagios-nrpe-2.5.2-1.el5.rf.i386.rpm nagios-plugins-1.4.9-1.el5.rf.i386.rpm perl-Crypt-DES-2.05-3.2.el5.rf.i386.rpmperl-Digest-HMAC-1.02-1.el5.rf.noarch.rpm perl-Digest-SHA1-2.13-1.el5.rfx.i386.rpm perl-Net-SNMP-5.2.0-1.2.el5.rf.noarch.rpm perl-Socket6-0.23-1.el5.rfx.i386.rpm fping-2.4-1.b2.3.el5.rf.i386.rpm
[*] vi /etc/nagios/nrpe.cfg
[*]allowed_hosts=127.0.0.1,HostA_ip
[*]nrpe -c /etc/nagios/nrpe.cfg -d #运行nrpe
[*]vi /etc/sysconfig/iptables
[*]-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5666 -j ACCEPT
[*]netstat -an|grep 5666
[*]在HostA上执行
[*]#/usr/lib/nagios/plugins/check_nrpe-H 192.168.128.59
[*]返回NRPE v2.5.1，OK
[*]cp /etc/nagios/objects/localhost.cfg /etc/nagios/objects/linuxs.cfg
[*]vi /etc/nagios/objects/linuxs.cfg
[*]# Definitions for monitoring the Linux hosts
[*]cfg_file=/etc/nagios/objects/linuxs.cfg
[*]
View Code
◦###############################################################################
# LINUX.CFG - SAMPLE OBJECT CONFIG FILE FOR MONITORING THIS MACHINE
###############################################################################
# HOST DEFINITION
###############################################################################
define host{
use linux-server
host_name iplat-builder
alias localhost
address 192.168.128.59
}
###############################################################################
# HOST GROUP DEFINITION
###############################################################################
define hostgroup {
hostgroup_namelinux-Hosts
alias Linux Hosts
members iplat-builder ; Comma separated list of hosts that belong to this group
}
###############################################################################
# SERVICE DEFINITIONS
###############################################################################
define service{
use local-service
hostgroup_name linux-Hosts
service_description PING
check_command check_icmp!100.0,20%!500.0,60%
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description Root Partition
check_command check_local_disk!20%!10%!/
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description Total Processes
check_command check_local_procs!250!400!RSZDT
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description Current Load
check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description Swap Usage
check_command check_local_swap!20!10
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description SSH
check_command check_ssh
notifications_enabled 0
}
define service{
use local-service
hostgroup_name linux-Hosts
service_description HTTP
check_command check_http
notifications_enabled 0
}
[*]#chkconfig --level 345 nrpe on
参考：
[*]http://www.nagios.org/
[*]http://smallfish01.blog.iyunv.com/3565/455092
[*]http://minitrue.googlecode.com/svn-history/r118/trunk/txt/ch13.txt
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