nagios 安装配置说明（一）
Nagios安装配置说明[*] 修改YUM源为国内sohu的站点；
# cd/etc/yum.repos.d/
# ls
CentOS-Base.repoCentOS-Debuginfo.repoCentOS-Media.repoCentOS-Vault.repo
# mvCentOS-Base.repo CentOS-Base.repo.backup
# wgethttp://mirrors.sohu.com/help/CentOS-Base-sohu.repo
--2014-06-08 22:34:38-- http://mirrors.sohu.com/help/CentOS-Base-sohu.repo
Resolving mirrors.sohu.com...119.188.36.70
Connecting tomirrors.sohu.com|119.188.36.70|:80... connected.
HTTP request sent, awaitingresponse... 200 OK
Length: 2299 (2.2K)
Saving to:`CentOS-Base-sohu.repo'
100%[===================================================================================>]2,299 --.-K/s in 0.1s
2014-06-08 22:34:43 (20.6 KB/s)- `CentOS-Base-sohu.repo' saved
# ls
CentOS-Base-sohu.repoCentOS-Base.repo.backupCentOS-Debuginfo.repoCentOS-Media.repoCentOS-Vault.repo
# mv CentOS-Base-sohu.repoCentOS-Base.repo
[*] 解决perl编译问题；
# echo 'exportLC_ALL=C'>> /etc/profile
# tail -1/etc/profile
export LC_ALL=C
# source/etc/profile
# echo $LC_ALL
C
[*] 关闭iptables防火墙；
#/etc/init.d/iptables stop
#/etc/init.d/iptables status
iptables: Firewall is notrunning.
# chkconfigiptables off
# chkconfig--list|grep iptables
iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
[*] 关闭selinux；
# cat /etc/selinux/config
# This file controls the stateof SELinux on the system.
# SELINUX= can take one ofthese three values:
# enforcing - SELinux security policy isenforced.
# permissive - SELinux prints warningsinstead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=enforcing
# SELINUXTYPE= can take one ofthese two values:
# targeted - Targeted processes areprotected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
# sed -i 's#SELINUX=enforcing#SELINUX=disabled#g'/etc/selinux/config
# cat/etc/selinux/config
# This file controls the stateof SELinux on the system.
# SELINUX= can take one ofthese three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warningsinstead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one ofthese two values:
# targeted - Targeted processes areprotected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
# setenforce 0
# getenforce
Disabled
五、解决时间同步问题；
#/usr/sbin/ntpdate pool.net.org #更新当前时间
8 Jun 22:55:22 ntpdate: no serversuitable for synchronization found
# echo '#timesync by jerry at 20140131'>> /var/spool/cron/root
# echo '*/10 * ** * /usr/sbin/ntpdate pool.ntp.org >/dev/null 2>&1'>>/var/spool/cron/root
# crontab -l
#time sync by jerry at 20140131
*/10 * * * * /usr/sbin/ntpdatepool.ntp.org >/dev/null 2>&1
六、安装nagios所需的基础软件包；
# yum installgcc glibc glibc-common gd gd-devel mysql* httpd php php-gd –y
七、创建用户和组；
# useradd nagios
# groupaddnagcmd
# usermod -a -Gnagcmd nagios
# usermod -a -Gnagcmd apache
八、创建软件存放文件夹及下载相关软件；
#mkdir –p /home/jerry/tools
#cd/home/jerry/tools
九、解压并安装nagios；
# tar zxfnagios-3.5.0-1374045102000.tar.gz
# ls
nagiosnagios-3.5.0-1374045102000.tar.gznagios-plugins-1.5.tar.gz
# cd nagios
#./configure --with-command-group=nagcmd
# make all
# makeinstall
# makeinstall-init
# makeinstall-config
# makeinstall-commandmode
十、安装nagios web 配置文件及创建登陆用户；
# makeinstall-webconf
/usr/bin/install -c -m 644sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
*** Nagios/Apache conf fileinstalled ***
# grep -v"#" /etc/httpd/conf.d/nagios.conf
ScriptAlias /nagios/cgi-bin"/usr/local/nagios/sbin"
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthType Basic
AuthUserFile/usr/local/nagios/etc/htpasswd.users
Require valid-user
Alias /nagios"/usr/local/nagios/share"
Options None
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthType Basic
AuthUserFile/usr/local/nagios/etc/htpasswd.users
Require valid-user
# htpasswd-c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
Adding password for usernagiosadmin
十一、添加监控报警的接收email地址；
# vim/usr/local/nagios/etc/objects/contacts.cfg +35
email nagios@localhost
更改为
email 46718718@qq.com
1. 启动sendmail时时间过长请检查主机名是否一致
#/etc/init.d/sendmail start
Starting sendmail: ^C
# cat/etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4localhost4.localdomain4
::1 localhost localhost.localdomainlocalhost6 localhost6.localdomain6
# uname -n
Nagios
修改为：
# cat/etc/hosts
127.0.0.1 nagios localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomainlocalhost6 localhost6.localdomain6
#/etc/init.d/sendmail start
Starting sendmail:
Starting sm-client:
# lsof -i:25
COMMANDPID USERFD TYPE DEVICE SIZE/OFF NODENAME
master1771 root12uIPv411293 0t0TCP nagios:smtp (LISTEN)
master1771 root13uIPv611295 0t0TCP localhost:smtp (LISTEN)
# chkconfigsendmail on
# chkconfig--list|grep sendmail
sendmail 0:off 1:off 2:on 3:on 4:on 5:on 6:off
2. 启动apache;
# netstat-lnt|grep 80
tcp 0 0 :::80 :::* LISTEN
# chkconfig--list|grep httpd
httpd 0:off 1:off 2:off 3:off 4:off 5:off 6:off
# chkconfighttpd on
# chkconfig--list|grep httpd
httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
打开浏览器输入http://server-ip/nagios会有一个用户名密码提示窗口，输入之前创建的用户名密码即可进入nagios系统页面。
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