centos6 64bit nagios的安装
参照netseek的pdf，centos6 64bit[*]nagios 安装步骤
[*]1在做安装之前确认要对该机器拥有root 权限。
[*]确认你安装好的linux 系统上已经安装如下软件包再继续。
[*]Apache
[*]GCC 编译器
[*]GD库与开发库
[*]yum -y install httpd gcc glibc glibc-common gd gd-devel
[*]
[*]2
[*]建立nagios 账号
[*]/usr/sbin/useradd nagios&& passwd nagios
[*]创建一个用户组名为nagcmd用于从Web 接口执行外部命令
[*]用户都加到这个组中
[*]/usr/sbin/groupaddnagcmd
[*]/usr/sbin/usermod ‐ G nagcmd nagios
[*]/usr/sbin/usermod ‐ G nagcmd apache
[*]
[*]3
[*]下载nagios 和插件程序包
[*]下载Nagios 和Nagios 插件的软件包( 访问http://www.nagios.org/download/站点以获得最
[*]新版本)
[*]cd/usr/local/src
[*]wgethttp://nchc.dl.sourceforge.net/sourceforge/nagios/nagios-3.0.6.tar.gz
[*]wgethttp://nchc.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.13.tar.gz
[*]
[*]4
[*]编译与安装nagios
[*]cd/usr/local/src
[*]tar zxvfnagios-3.0.6.tar.gz
[*]cdnagios-3.0.6
[*]./configure --with-command-group=nagcmd--prefix=/usr/local/nagios
[*]make all
[*]make install
[*]make install-init
[*]make install-config
[*]make install-commandmode
[*]
[*]验证程序是否被正确安装。切换目录到安装路径（这里是/usr/local/nagios）,看是否存在
[*]etc、bin、 sbin、 share、 var 这五个目录，如果存在则可以表明程序被正确的安装到系
[*]统了。后表是五个目录功能的简要说明：
[*]
[*]5
[*]编译并安装nagios 插件 nagios-plugins
[*]cd/usr/local/src
[*]tar zxvfnagios-plugins-1.4.13.tar.gz
[*]cdnagios-plugins-1.4.13
[*]./configure --with-nagios-user=nagios --with-nagios-group=nagios--prefix=/usr/local/nagios
[*]
[*]make && make install
[*] 验证：
[*]ls/usr/local/nagios/libexec
[*]会显示安装的插件文件,即所有的插件都安装在 libexec 这个目录下
[*]
[*]6配置WEB 接口
[*]方法一：直接在安装nagios 时 make install ‐ webconf
[*]创建一个nagiosadmin的用户用于Nagios 的WEB 接口登录。记下你所设置的登录口
[*]令，一会儿你会用到它。
[*]htpasswd ‐ c /usr/local/nagios/etc/htpasswd.users nagiosadmin
[*]重启Apache服务以使设置生效。
[*]servicehttpdrestart
[*]方法二：在httpd.conf最后添加如下内容：
[*]#for nagios
[*]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
[*] 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
[*] Require valid-user
[*]
[*]
[*]htpasswd ‐ c /usr/local/nagios/etc/htpasswdtest
[*]Newpassword: (输入123456)
[*]Re‐ typenewpassword: (再输入一次密码)
[*]Addingpasswordfor usertest
[*]查看认证文件的内容
[*]less/usr/local/nagios/etc/htpasswd
[*]test:OmWGEsBnoGpIc 前半部分是用户名test, 后面是加密后的密码
[*]
[*]本例添加的是 test用户名，需要改 cgi.cfg配置文件，允许test 用户
[*]vi /usr/local/nagios/etc/cgi.cfg
[*] authorized_for_system_information=test
[*] authorized_for_configuration_information=test
[*] authorized_for_system_commands=test
[*] authorized_for_all_services=test
[*] authorized_for_all_hosts=nagiosadmin,test
[*] authorized_for_all_ service_commands=test
[*] authorized_for_all_host_commands=test
[*]
[*]7
[*]启动nagios
[*]把Nagios 加入到服务列表中以使之在系统启动时自动启动
[*]chkconfig ‐‐ addnagios
[*]chkconfignagioson
[*]验证Nagios 的样例配置文件
[*]/usr/local/nagios/bin/nagios ‐ v /usr/local/nagios/etc/nagios.cfg
[*]有可能
[*]Nagios 3.0.6
[*]Copyright (c) 1999-2008 Ethan Galstad (http://www.nagios.org)
[*]Last Modified: 12-01-2008
[*]License: GPL
[*]Error: Cannot open main configuration file '/usr/local/‐' for reading! 然后赋予权限也不行 直接重启nagios服务 启动即可
[*]Nagios 3.0.6 starting... (PID=2821)
[*]Local time is Thu Feb 16 14:24:25 CST 2012
[*]Bailing out due to one or more errors encountered in the configuration files. Run Nagios from the command line with the -v option to verify your config before restarting. (PID=2821)
[*]
[*]如果没有报错，可以启动Nagios 服务
[*]servicenagiosstart
[*]servicehttpd start
[*]8 setenforce 0(执行这个命令就可了）
[*]
[*]令SELinux处于容许模式
[*]setenforce 0
[*]如果要永久性更变它，需要更改/etc/selinux/config 里的设置并重启系统。
[*]不关闭SELinux或是永久性变更它的方法是让 CGI 模块在SELinux下指定强制目标模式：
[*]chcon‐ R‐ t httpd_sys_content_t /usr/local/nagios/sbin/
[*]chcon‐ R‐ t httpd_sys_content_t /usr/local/nagios/share/
[*]
[*]9
[*]测试
[*]登录 http://localhost/nagios/输入用户名test和密码123456就可以正常登录了
[*]
[*]十 如何配置监控远程主机
[*]1 在被监控主机上
[*]增加用户
[*]useradd nagios
[*]设置密码
[*]passwd nagios
[*]安装nagios插件
[*]wgethttp://nchc.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.13.tar.gz
[*]tar zxvf nagios-plugins-1.4.13.tar.gz
[*]cd nagios-plugins-1.4.13
[*]./configure
[*]make
[*]make install
[*]chown nagios.nagios /usr/local/nagios/
[*]chown-Rnagios.nagios /usr/local/nagios/libexec/
[*]
[*]
[*]2 nagios 安装nrpe的时候步骤（监控与被监控都要安装）
[*]tar -zxvfnrpe-2.8.1.tar.gz
[*]cdnrpe-2.8.1
[*]./configure
[*]make all
[*]make install-plugin
[*]make install-daemon
[*]make install-daemon-config
[*]
[*]3 vim /usr/local/nagios/etc/nrpe.cfg
[*]#allowed_hosts=127.0.0.1
[*]allowed_hosts=127.0.0.1,192.168.1.130（192.168.1.130监控端的地址）
[*]
[*]改/etc/hosts.allow增加监控机ip
[*]
[*]echo 'nrpe:192.168.1.130' >> /etc/hosts.allow
[*]4启动服务
[*]/usr/local/nagios/bin/nrpe -c/usr/local/nagios/etc/nrpe.cfg -d
[*]测试nrpe服务是否正常
[*]/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1（用127.0.0.1测试 不要用localhost测试）
[*]NRPE v2.8.1
[*]
[*]5在监控端（192.168.1.130）测试 看到如下结果说明成功
[*]/etc/init.d/iptables stop(或者添加允许从被监控端收集信息）
[*]/usr/local/nagios/libexec/check_nrpe -H 192.168.1.129
[*]NRPE v2.8.1
[*]
[*]
[*]然后在监控端
[*]1 vim /usr/local/nagios/etc/objects/129.cfg内容如下
[*]define host{
[*]
[*]use linux-server
[*]
[*]host_name 129
[*]
[*]alias 129
[*]
[*]address 192.168.1.129
[*]
[*]}
[*]
[*]define service{
[*]
[*]use generic-service
[*]
[*]host_name 129
[*]
[*]service_description load
[*]
[*]check_command check_nrpe!check_load
[*]#使用自定参数
[*]#check_command check_nrpe!check_load!6.0,5.0,4.0!15.0,8.0,6.0
[*]}
[*]
[*]vim /usr/local/nagios/etc/nagios.cfg 添加如下内容
[*]# Definitions for monitoring 192.168.1.129
[*]cfg_file=/usr/local/nagios/etc/objects/129.cfg
[*]
[*]
[*]vim /usr/local/nagios/etc/objects/commands.cfg
[*]# 'check_nrpe ' command definition
[*]define command{
[*]
[*]command_name check_nrpe
[*]
[*]command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
[*]
[*]}
[*]
[*]监控机nagios重启
[*]service nagios reload
[*]输入http://192.168.1.130/nagios 就可看到129已经添加成功
[*]
[*]
[*]
[*]nagios监控swap
[*]在被监控机的/usr/local/nagios/etc/nrpe.cfg
[*]vim /usr/local/nagios/etc/nrpe.cfg添加
[*]command=/usr/local/nagios/libexec/check_swap -w 20% -c 10%
[*]nrpe服务重启
[*]# ps -ef | grep nrpe
[*]nagios 2332 10 14:24 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]root 2373 288870 14:25 pts/0 00:00:00 grep nrpe
[*]kill -9 2332
[*]/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg添加
[*]# check_swap command definition
[*]define command{
[*] command_name check_swap
[*] command_line $USER1$/check_swap -w $ARG1$ -c $ARG2$
[*] }
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/129.cfg添加
[*]define service{
[*]use generic-service
[*]host_name 129
[*]service_description swap
[*]check_command check_nrpe!check_swap
[*]}
[*]
[*]
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]nagios监控磁盘
[*]
[*]在被监控机的/usr/local/nagios/etc/nrpe.cfg
[*]vim /usr/local/nagios/etc/nrpe.cfg添加
[*]command=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /
[*]nrpe服务重启
[*]# ps -ef | grep nrpe
[*]nagios 2332 10 14:24 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]root 2373 288870 14:25 pts/0 00:00:00 grep nrpe
[*]kill -9 2332
[*]/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg添加
[*]define command{
[*] command_name check_disk
[*] command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
[*] }
[*]
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/129.cfg添加
[*]
[*]define service{
[*]use generic-service
[*]host_name 129
[*]service_description disk
[*]check_command check_nrpe!check_disk
[*]}
[*]
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]nagios监控内存
[*]监控内存脚本如下
[*]######################################
[*]#!/bin/bash
[*]# check memory script
[*]
[*]TOTAL=`free -m | head -2 |tail -1 |gawk '{print $2}'`
[*]USED=`free -m | head -2 |tail -1 |gawk '{print $3}'`
[*]FREE=`free -m | head -2 |tail -1 |gawk '{print $4}'`
[*]# to calculate free percent
[*]# use the expression free * 100 / total
[*]FREETMP=`expr $FREE \* 100`
[*]PERCENT=`expr $FREETMP / $TOTAL`
[*]echo "$TOTAL MB Total Memory"
[*]echo "$USED MB Used Memory"
[*]echo "$FREE MB ($PERCENT%) Free Memory"
[*]exit 0
[*]######################################
[*]
[*]在被监控机的/usr/local/nagios/etc/nrpe.cfg
[*]vim /usr/local/nagios/etc/nrpe.cfg添加
[*]command=/usr/local/nagios/libexec/check_mem -w 150 -c 200
[*]把监控脚本check_mnem放到/usr/local/nagios/libexec/ 并赋予执行权限
[*]chmod +x /usr/local/nagios/libexec/check_mem
[*]chown nagios.nagios /usr/local/nagios/libexec/check_mem
[*]
[*]nrpe服务重启
[*]# ps -ef | grep nrpe
[*]nagios 2332 10 14:24 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]root 2373 288870 14:25 pts/0 00:00:00 grep nrpe
[*]kill -9 2332
[*]/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg添加
[*]define command{
[*] command_name check_mem
[*] command_line $USER1$/check_mem -w $ARG1$ -c $ARG2$
[*] }
[*]
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/129.cfg添加
[*]
[*]define service{
[*]
[*]use generic-service
[*]
[*]host_name 129
[*]
[*]service_description memory
[*]
[*]check_command check_nrpe!check_mem
[*]}
[*]
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]
[*]
[*]nagios监控http存活状态
[*]被监控机不需要任何操作（因为check_http不需要通过nrpe来监控）
[*]
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg已经存在check_http命令 故也不需要操作
[*]
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/129.cfg添加
[*]
[*]define service{
[*]
[*]use generic-service
[*]
[*]host_name 129
[*]
[*]service_description http
[*]
[*]check_command check_http（这一行要注意 不是check_nrpe!check_http这种形式）
[*]}
[*]
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]
[*]错误解决方法 因为http是采用yum安装的 网站文件路径默认是/var/www/html
[*]执行下面命令检测时
[*]/usr/local/nagios/libexec/check_http -I 192.168.1.129
[*]报错如下
[*]HTTP WARNING: HTTP/1.1 403 Forbidden
[*]原因这是因为/var/www/html 下面没有文件所致
[*]cd /var/www/html
[*]echo 123 >index.html
[*]然后过一会 nagios检测就ok了
[*]
[*]nagios监控mysql存活状态
[*]被监控机登录数据库授权
[*]
[*]mysql> grant all privileges on *.* to xxxxx@192.168.1.130 identified by '123456';
[*]Query OK, 0 rows affected (0.09 sec)
[*]
[*]mysql> flush privileges;
[*]Query OK, 0 rows affected (0.08 sec)
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg添加如下内容
[*]
[*]# check_mysql command definition
[*]define command{
[*] command_name check_mysql
[*] command_line $USER1$/check_mysql -H $HOSTADDRESS$-P $ARG1$ -
[*]u $ARG2$-p $ARG3$(liuyu那个pdf有问题）
[*] }
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/129.cfg添加
[*]
[*]define service{
[*]
[*]use generic-service
[*]
[*]host_name 129
[*]
[*]service_description mysql
[*]
[*]check_command check_mysql!192.168.1.129!3306!xxxx!123456（这一行liuyu文档上是对的这一行要注意 不是check_nrpe!check_http这种形式）
[*]
[*]notifications_enabled0
[*]
[*]
[*]}
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]
[*]nagios监控tomcat存活状态
[*]被监控机不需要任何操作（因为check_tcp!8080不需要通过nrpe来监控）
[*]
[*]
[*]监控端
[*]/usr/local/nagios/etc/objects/commands.cfg已经存在check_tcp命令 故也不需要操作
[*]
[*]
[*]
[*]
[*]在下面的文件中
[*]vim /usr/local/nagios/etc/objects/hong221.cfg添加
[*]define service{
[*]
[*]use generic-service
[*]
[*]host_name hong221
[*]
[*]service_description tomcat
[*]
[*]check_command check_tcp!8080!xxxxx
[*]
[*]}
[*]
[*]收到检测 执行下面命令
[*]# /usr/local/nagios/libexec/check_tcp -H xxxxx -p 8080
[*]TCP OK - 0.141 second response time on port 8080|time=0.141140s;;;0.000000;10.000000
[*]
[*]重启nagios服务和http服务
[*]service nagios restart
[*]service httpd restart
[*]
[*]然后在监控端就可以看到监控页面了
[*]
[*]nagios配置139邮箱报警
[*]关于mail发送邮件139邮箱收不到的解决办法
[*]tail -f /var/log/maillog 日志报错如下
[*]Feb 21 17:20:49 localhost postfix/qmgr: A296612227F: from=, size=700, nrcpt=1 (queue active)
[*]Feb 21 17:20:49 localhost sendmail: q1L9KmDa002275: to=xxxxx@139.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:0
[*]0, mailer=relay, pri=30221, relay= , dsn=2.0.0, stat=Sent (Ok: queued as A296612227F)
[*]Feb 21 17:20:49 localhost postfix/smtpd: disconnect from localhost.localdomain
[*]Feb 21 17:20:50 localhost postfix/smtp: A296612227F: to=, relay=mx1.mail.139.com:25, delay
[*]=0.53, delays=0.05/0.01/0.24/0.23, dsn=5.0.0, status=bounced (host mx1.mail.139.com said: 550 985a4f43618db72-3c5de Mail rejected (in reply to end of DATA command))
[*]Feb 21 17:20:50 localhost postfix/cleanup: 43FB812227E: message-id=
[*]Feb 21 17:20:50 localhost postfix/qmgr: 43FB812227E: from=, size=2697, nrcpt=1 (queue active)
[*]Feb 21 17:20:50 localhost postfix/bounce: A296612227F: sender non-delivery notification: 43FB812227E
[*]Feb 21 17:20:50 localhost postfix/qmgr: A296612227F: removed
[*]
[*]经指点是由于hostname（localhost.localdomain）的问题 可能会被139邮箱当做垃圾邮件
[*]# cat /etc/sysconfig/network
[*]NETWORKING=yes
[*]#HOSTNAME=localhost.localdomain
[*]HOSTNAME=nagios.localdomain
[*]
[*]# cat /etc/hosts
[*]192.168.1.130 nagios.localdomain nagios# Added by NetworkManager
[*]127.0.0.1 localhost.localdomain localhost
[*]::1 nagios.localdomain nagioslocalhost6.localdomain6 localhost6
[*]
[*]故随便改了一个名字 然后重启服务器发现可以使用了 139邮箱也能收到邮件了
[*]
[*]
[*]
[*]关于服务报警nagios方面的配置
[*]监控机上
[*]vim /usr/local/nagios/etc/objects/contacts.cfg
[*]define contact{
[*] contact_name nagiosadmin ; Short name of user
[*] use generic-contact ; Inherit default values from generic-contact template (defined abov
[*]e)
[*] alias Nagios Admin ; Full name of user
[*] service_notification_period 24x7
[*] host_notification_period 24x7
[*] service_notification_options w,u,c,r
[*] host_notification_options d,u,r
[*] service_notification_commands notify-service-by-email
[*] host_notification_commands notify-host-by-email
[*] email xxxxx@139.com（写上你要发送到的邮箱里面 139邮箱运维必备） ;
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