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一、Nagios服务器端安装1、环境准备1.1基础环境 [iyunv@m01 yum.repos.d]# cat /etc/redhat-release CentOS release 6.7 (Final) [iyunv@m01 yum.repos.d]# uname -r 2.6.32-573.el6.x86_64 [iyunv@m01 yum.repos.d]# uname -m x86_64 1.2准备3台服务器管理IP 角色 备注 10.0.0.61 nagios Nagios服务器端（管理服务器） 10.0.0.8 web01 被监控的客户端服务器 10.0.0.7 web02 被监控的客户端服务器 1.3设置yum源安装cd /etc/yum.repos.d/ /bin/mv CentOS-Base.repo CentOS-Base.repo.oldboy.ori
64 bytes from 119.75.218.70: icmp_seq=1 ttl=128 time=19.0ms 64 bytes from 119.75.218.70: icmp_seq=2 ttl=128 time=4.46ms 64 bytes from 119.75.218.70: icmp_seq=3 ttl=128 time=3.66ms ^C 3 packets transmitted, 3 received, 0% packet loss, time2291ms rtt min/avg/max/mdev = 3.666/9.070/19.078/7.084 ms [iyunv@m01 ~]# cd /etc/yum.repos.d [iyunv@m01 yum.repos.d]# ls CentOS-Base.repo CentOS-Media.repo epel-testing.repo CentOS-Debuginfo.repo CentOS-Vault.repo CentOS-fasttrack.repo epel.repo [iyunv@m01 yum.repos.d]# /bin/mv CentOS-Base.repo CentOS-Base.repo.oldboy.ori [iyunv@m01 yum.repos.d]# cd ~
1.4解决Perl软件编译问题cd ~ echo 'export LC_ALL=C'>>/etc/profile tail -1 /etc/profile source /etc/profile echo $LC_ALL cd ~
[iyunv@m01 ~]# echo'export LC_ALL=C'>>/etc/profile [iyunv@m01 ~]# tail -1/etc/profile export LC_ALL=C [iyunv@m01 ~]# source/etc/profile [iyunv@m01 ~]# echo$LC_ALL C [iyunv@m01 ~]# cd ~ 1.5.关闭防火墙及selinux在测试环境下为了方便，最好关掉防火墙及selinex，如果是生产环境中，因为有外部IP，所以在调试完毕后需要开启防火墙。 /etc/init.d/iptables stop /etc/init.d/iptables status chkconfig iptables off chkconfig --list iptables sed -i 's#SELINUX=enforcing#SELINUX=disabled#g'/etc/selinux/config getenforce 关闭防火墙 [iyunv@m01 ~]#/etc/init.d/iptables stop [iyunv@m01 ~]#/etc/init.d/iptables status iptables: Firewall isnot running. [iyunv@m01 ~]# chkconfigiptables off [iyunv@m01 ~]# chkconfig--list iptables iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off 关闭SElinux [iyunv@m01 ~]# sed -i's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config [iyunv@m01 ~]#getenforce 查看 Disabled [iyunv@m01 ~]# setenforce0 临时生效 setenforce: SELinux isdisabled [iyunv@m01 ~]#getenforce Disabled 1.6解决系统时间同步问题 利用NTP时间同步或者配合定时任务来执行 #time sync by oldboy at2010-2-1 */5 * * * */usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1
1.7安装Nagios服务端所需安装包Nagios服务器端需要有web界面展示监控效果，界面的展示主要使用PHP程序，因此，需要LAMP环境。 注意：yum安装LAMP环境是配合Nagios服务端展示界面的最佳环境。(不要安装LNMP环境) yum install gcc glibc glibc-common -y 编译软件升级 yum install gd gd-devel -y 用于后面PNP出图的包 yum install mysql-server -y ##非必须的，如果有监控数据库，那么需要先安装mysql，否则mysql的相关插件不会被安装 yum install httpd php php-gd -y ##Apache，PHP环境 rpm -qa mysql httpd php （3个包） 提示：通过yum工具安装上述所有软件包，且这些环境一般不需要在Nagios客户端安装。 上面软件包安装好了之后的版本为：Apache2.2.15、PHP5.3.3、mysql5.1.73 [iyunv@m01 ~]# rpm -qa mysql httpd php httpd-2.2.15-47.el6.centos.4.x86_64 php-5.3.3-46.el6_7.1.x86_64 mysql-5.1.73-5.el6_7.1.x86_64
1.8、创建Nagios服务器端需要的用户及组/usr/sbin/useradd nagios ###这个地方最好创建家目录，否则，启动Nagios会提醒没家目录 /usr/sbin/useradd apache -M -s /sbin/nologin /usr/sbin/groupadd nagcmd /usr/sbin/usermod -a -G nagcmd nagios /usr/sbin/usermod -a -G nagcmd apache id -n -G nagios id -n -G apache
[iyunv@m01 ~]#/usr/sbin/useradd nagios [iyunv@m01 ~]#/usr/sbin/useradd apache -M -s /sbin/nologin useradd: user 'apache'already exists [iyunv@m01 ~]#/usr/sbin/groupadd nagcmd [iyunv@m01 ~]#/usr/sbin/usermod -a -G nagcmd nagios [iyunv@m01 ~]#/usr/sbin/usermod -a -G nagcmd apache [iyunv@m01 ~]# id -n -Gnagios nagios nagcmd [iyunv@m01 ~]# id -n -Gapache apache nagcmd [iyunv@m01 ~]#
1.9上传软件包到指定目录或通过URL下载mkdir -p /home/oldboy/tools/nagios cd /home/oldboy/tools/nagios rz
[iyunv@m01 ~]# mkdir -p /home/oldboy/tools/nagios [iyunv@m01 ~]# cd /home/oldboy/tools/nagios/ [iyunv@m01 nagios]# rz rz waiting to receive. ???a? zmodem ′???￡ °′ Ctrl+C ???￡ ??′??oldboy_training_nagios_soft.zip... 100% 7387 KB 7387 KB/s 00:00:01 0 ′?
?[iyunv@m01 nagios]# ll total 7388 -rw-r--r-- 1 root root 7564715 May 22 16:05oldboy_training_nagios_soft.zip [iyunv@m01 nagios]# unzip oldboy_training_nagios_soft.zip Archive: oldboy_training_nagios_soft.zip inflating:check_memory.pl inflating:check_mysql inflating:Class-Accessor-0.31.tar.gz extracting:Config-Tiny-2.12.tar.gz inflating:libart_lgpl-2.3.17.tar.gz inflating:Math-Calc-Units-1.07.tar.gz inflating:Nagios-Plugin-0.34.tar.gz inflating:nrpe-2.12.tar.gz inflating:Params-Validate-0.91.tar.gz inflating:pnp-0.4.14.tar.gz inflating:Regexp-Common-2010010201.tar.gz inflating:rrdtool-1.2.14.tar.gz inflating:check_iostat inflating:nagios-3.5.1.tar.gz inflating:nagios-plugins-1.4.16.tar.gz inflating:rrdtool-1.2.30.tar.gz [iyunv@m01 nagios]# tree . |-- Class-Accessor-0.31.tar.gz |-- Config-Tiny-2.12.tar.gz |-- Math-Calc-Units-1.07.tar.gz |-- Nagios-Plugin-0.34.tar.gz |-- Params-Validate-0.91.tar.gz |-- Regexp-Common-2010010201.tar.gz |-- check_iostat |-- check_memory.pl |-- check_mysql |-- libart_lgpl-2.3.17.tar.gz |-- nagios-3.5.1.tar.gz |-- nagios-plugins-1.4.16.tar.gz |-- nrpe-2.12.tar.gz |-- oldboy_training_nagios_soft.zip |-- pnp-0.4.14.tar.gz |-- rrdtool-1.2.14.tar.gz `-- rrdtool-1.2.30.tar.gz
0 directories, 17 files
启动LAMP环境的HTTP服务
[iyunv@m01 nagios]# /etc/init.d/httpd start Startinghttpd: httpd: Could not reliably determine the server's fully qualified domainname, using 172.16.1.61 for ServerName ##可忽略或表示httpd.conf中缺少ServerName配置，可在/etc/httpd/conf/httpd.conf中加入ServerName127.0.0.1:80 [ OK ] [iyunv@m01 nagios]# /etc/init.d/httpd restart Stopping httpd: [ OK ] Starting httpd: httpd: Could not reliably determine theserver's fully qualified domain name, using 172.16.1.61 for ServerName [ OK ] [iyunv@m01 nagios]# lsof -i :80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODENAME httpd 5527 root 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5529apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5530apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5531apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5532apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5533apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5534apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5535apache 4u IPv6 46082 0t0 TCP *:http (LISTEN) httpd 5536apache 4u IPv6 46082 0t0 TCP *:http (LISTEN)
2、安装Nagios服务器端unzip -q oldboy_training_nagios_soft.zip tar xf nagios-3.5.1.tar.gz cd nagios ./configure --with-command-group=nagcmd make all make install make install-init make install-config make install-commandmode
[iyunv@m01 httpd]# cd /home/oldboy/tools/nagios/ [iyunv@m01 nagios]# pwd /home/oldboy/tools/nagios [iyunv@m01 nagios]#tar xf nagios-3.5.1.tar.gz [iyunv@m01 nagios]#ls Class-Accessor-0.31.tar.gz libart_lgpl-2.3.17.tar.gz Config-Tiny-2.12.tar.gz nagios Math-Calc-Units-1.07.tar.gz nagios-3.5.1.tar.gz Nagios-Plugin-0.34.tar.gz nagios-plugins-1.4.16.tar.gz Params-Validate-0.91.tar.gz nrpe-2.12.tar.gz Regexp-Common-2010010201.tar.gz oldboy_training_nagios_soft.zip check_iostat pnp-0.4.14.tar.gz check_memory.pl rrdtool-1.2.14.tar.gz check_mysql rrdtool-1.2.30.tar.gz [iyunv@m01 nagios]# cd nagios [iyunv@m01 nagios]#./configure --with-command-group=nagcmd 出现下面的说明编译成功 Review the options abovefor accuracy. If they look okay, type 'make all' tocompile the main program and CGIs.
[iyunv@m01 nagios]# make all 出现这表示正常 ************************************************************* Enjoy. [iyunv@m01 nagios]# make install 出现这表示成功了 make[1]: Leaving directory`/home/oldboy/tools/nagios/nagios'
[iyunv@m01 nagios]# make install-init ##安装初始化脚本到/etc/rc.d/init.d /usr/bin/install -c -m755 -d -o root -g root /etc/rc.d/init.d /usr/bin/install -c -m755 -o root -g root daemon-init /etc/rc.d/init.d/nagios
*** Init scriptinstalled ***
[iyunv@m01 nagios]# make install-config ##生成Nagios模块配置文件到/usr/local/nagios/etc 出现下面表示安装成功了 Remember, these are *SAMPLE* config files. You'll need to read the documentation for more information on how to actuallydefine services, hosts, etc. to fit your particular needs.
[iyunv@m01 nagios]# make install-commandmode #安装配置目录许可外部命令文件 /usr/bin/install -c -m 775 -o nagios -g nagcmd -d/usr/local/nagios/var/rw chmod g+s /usr/local/nagios/var/rw
*** External command directory configured *** 2.1、安装Nagios Web配置文件及创建登录用户make install-webconf htpasswd -bc /usr/local/nagios/etc/htpasswd.users oldboy123456 cat /usr/local/nagios/etc/htpasswd.users /etc/init.d/httpd start
创建nagios web监控界面后，登录时会需要用户和名，密码（用户：oldboy密码：123456） [iyunv@m01 nagios]# makeinstall-webconf ##生成/etc/httpd/conf.d/nagios.conf配置文件 /usr/bin/install -c -m644 sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
*** Nagios/Apache conffile installed ***
[iyunv@m01 nagios]# htpasswd -bc/usr/local/nagios/etc/htpasswd.users oldboy 123456 Adding password for useroldboy 重新加载Apache [iyunv@m01 nagios]# /etc/init.d/httpd reload Reloading httpd: [iyunv@m01 nagios]#
2.2、添加监控报警信息接受的Email地址cp /usr/local/nagios/etc/objects/contacts.cfg{,.ori} sed -i 's#nagios@localhost# 542589761@qq.com#g'/usr/local/nagios/etc/objects/contacts.cfg 使用第三方邮件服务商提供的邮箱，把下列一行添加达到/etc/mail.rc里 [iyunv@m01 tools]# tail -1 /etc/mail.rc set from=13265571477@163.com smtp=smtp.163.comsmtp-auth-user=13265571477 smtp-auth-password=DA62073621 smtp-auth=login 操作前先备份 [iyunv@m01 nagios]# cp/usr/local/nagios/etc/objects/contacts.cfg{,.ori} [iyunv@m01 nagios]# sed-i 's#nagios@localhost# 542589761@qq.com#g'/usr/local/nagios/etc/objects/contacts.cfg [iyunv@m01 nagios]# sed-n '35p' /usr/local/nagios/etc/objects/contacts.cfg 使用第三方邮件服务商提供的邮箱，把下列一行添加达到/etc/mail.rc里 [iyunv@m01 tools]# tail -1 /etc/mail.rc setfrom=13265571477@163.com smtp=smtp.163.com smtp-auth-user=13265571477smtp-auth-password=DA62073621 smtp-auth=login
2.3、配置Apache服务并加入系统开机自启动/etc/init.d/httpd start /etc/init.d/httpd restart chkconfig httpd on netstat -lntup|grep httpd lsof -i :80 在浏览器登录 10.0.0.61/nagios 输入用户名和密码 oldboy 123456 显示nagios core就正常了
[iyunv@m01 nagios]#/etc/init.d/httpd start Starting httpd: [iyunv@m01 nagios]#/etc/init.d/httpd restart Stopping httpd: [ OK ] Starting httpd: [ OK ] [iyunv@m01 nagios]#chkconfig httpd on [iyunv@m01 nagios]#netstat -lntup|grep httpd tcp 0 0 :::80 :::* LISTEN 10922/httpd 在浏览器输入 10.0.0.61/nagios 输入用户名和密码 oldboy 123456 显示nagios core就正常了
2.4、安装Nagios插件软件包安装基础依赖包 yum install perl-devel openssl-devel -y 安装Nagiospluginx插件包 cd .. ls nagios-plugins-1.4.16.tar.gz tar xf nagios-plugins-1.4.16.tar.gz cd nagios-plugins-1.4.16 ./configure --with-nagios-user=nagios --with-nagios-group=nagios--enable-perl-modules --with-mysql make make install
2.5、安装nrpe软件cd /home/oldboy/tools/nagios ls nrpe-2.12.tar.gz tar xf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all make install-plugin make install-daemon make install-daemon-config ls /usr/local/nagios/libexec/check_nrpe ls /usr/local/nagios/libexec/|wc -l
到此为止Nagios服务器端的软件安装部分就配置完成了 2.6、配置并启动Nagios服务添加Nagios服务到开机自启动 echo "/etc/init.d/nagiosstart">>/etc/rc.local tail -1 /etc/rc.local /etc/init.d/nagios checkconfig
启动Nagios服务 /etc/init.d/nagios start 检查Nagios服务器端进程及端口 ps -ef |grep nagios|grep -v grep netstat -lntup|grep nagios(无内容就是正确的) 检查语法： [iyunv@m01 nrpe-2.12]#/etc/init.d/nagios checkconfig Running configurationcheck... OK.
2.7最后在浏览器输入http://10.0.0.61/nagios/，出现下面结果表明正确
有关出错问题看书（p570） 1、出现Forbidden403一般是由服务器端权限引起的，解决办法执行：yum install php -y
二、Nagios客户端安装2.1Nagios客户端无需安装LAMP环境， 2.安装前准备2.1、基础环境[iyunv@m01 yum.repos.d]# cat /etc/redhat-release CentOS release 6.7 (Final) [iyunv@m01 yum.repos.d]# uname -r 2.6.32-573.el6.x86_64 [iyunv@m01 yum.repos.d]# uname -m x86_64 2.2、准备2台服务器管理IP 角色 备注 10.0.0.8 web01 被监控的客户端服务器 10.0.0.7 web02 被监控的客户端服务器 2.3.解决Perl软件编译问题echo 'export LC_ALL=C'>>/etc/profile tail -1 /etc/profile source /etc/profile echo $LC_ALL
2.4.关闭防火墙及selinuxgetenforce #（显示Disabled下面就不用执行了） /etc/init.d/iptables stop /etc/init.d/iptables status chkconfig --list iptables sed -i 's#SELINUX=enforcing#SELINUX=disabled#g'/etc/selinux/config 修改配置文件则永久生效，但是必须重启系统 getenforce 2.5、解决系统时间同步问题crontab -l 也可以做NTP时间同步
3、正式安装1、安装基础系统软件yum install gcc glibc glibc-common -y yum install mysql-server -y rpm -qa mysql 2、上传软件包到指定目录或通过URL下载mkdir -p /home/oldboy/tools/nagios cd /home/oldboy/tools/nagios rz
unzip -q oldboy_training_nagios_soft.zip 3、添加Nagios用户useradd nagios-M -s /sbin/nologin id nagios
4、安装nagios-plugins插件yum install perl-devel perl-CPAN openssl-devel -y tar xf nagios-plugins-1.4.16.tar.gz cd nagios-plugins-1.4.16 ./configure --with-nagios-user=nagios --with-nagios-group=nagios--enable-perl-modules --with-mysql make make install cd .. ls /usr/local/nagios/libexec/|wc -l 5、安装nagios客户端nrpe软件cd .. ls /usr/local/nagios/libexec/check_nrpe tar xf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all make install-plugin make install-daemon make install-daemon-config ls /usr/local/nagios/libexec/check_nrpe ls /usr/local/nagios/libexec/|wc -l
6、安装其他相关的插件cd .. #----------Dear，我是分隔符--------------------- tar zxf Params-Validate-0.91.tar.gz cd Params-Validate-0.91 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- tar zxf Class-Accessor-0.31.tar.gz cd Class-Accessor-0.31 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- tar zxf Config-Tiny-2.12.tar.gz cd Config-Tiny-2.12 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- tar zxf Math-Calc-Units-1.07.tar.gz cd Math-Calc-Units-1.07 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- tar zxf Regexp-Common-2010010201.tar.gz cd Regexp-Common-2010010201 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- tar zxf Nagios-Plugin-0.34.tar.gz cd Nagios-Plugin-0.34 perl Makefile.PL make make install cd .. #----------Dear，我是分隔符--------------------- yum install sysstat -y
如果报错就是前面的perl环境变量没提前设置好
7、配置监控内存、磁盘I/O脚本插件yum install dos2unix -y /bin/cp /home/oldboy/tools/nagios/check_memory.pl/usr/local/nagios/libexec/ /bin/cp /home/oldboy/tools/nagios/check_iostat /usr/local/nagios/libexec/ chmod 755 /usr/local/nagios/libexec/check_memory.pl chmod 755 /usr/local/nagios/libexec/check_iostat dos2unix /usr/local/nagios/libexec/check_memory.pl dos2unix /usr/local/nagios/libexec/check_iostat
8、配置Nagios客户端nrpe服务cd /usr/local/nagios/etc/ sed -n '79p' nrpe.cfg sed -i's#allowed_hosts=127.0.0.1#allowed_hosts=127.0.0.1,172.16.1.61#g' nrpe.cfg sed -n '79p' nrpe.cfg
9、然后在命令模式下执行shift+g命令道结尾。并进行如下操作vim nrpe.cfg 第一步，注释掉199-203行 #command[check_users]=/usr/local/nagios/libexec/check_users-w 5 -c 10 #command[check_load]=/usr/local/nagios/libexec/check_load-w 15,10,5 -c 30,25,20 #command[check_hda1]=/usr/local/nagios/libexec/check_disk-w 20% -c 10% -p /dev/hda1 #command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs-w 5 -c 10 -s Z #command[check_total_procs]=/usr/local/nagios/libexec/check_procs-w 150 -c 200 第二步，在下面新添加要监控的内容： command[check_load]=/usr/local/nagios/libexec/check_load-w 15,10,5 -c 30,25,20 command[check_mem]=/usr/local/nagios/libexec/check_memory.pl-w 10% -c 3% command[check_disk]=/usr/local/nagios/libexec/check_disk-w 15% -c 7% -p / command[check_swap]=/usr/local/nagios/libexec/check_swap-w 20% -c 10% command[check_iostat]=/usr/local/nagios/libexec/check_iostat-w 6 -c 10 10、启动Nagiosclient nrpe守护进程/usr/local/nagios/bin/nrpe -c/usr/local/nagios/etc/nrpe.cfg -d netstat -lntup|grep nrpe ps -ef |grep nrpe |grep -v grep
重启技巧（这里不用重启） #pkill nrpe #/usr/local/nagios/bin/nrpe-c /usr/local/nagios/etc/nrpe.cfg -d
11、加入开机自启echo "#nagios nrpe process cmd by wangtian2016-5-22">>/etc/rc.local echo "/usr/local/nagios/bin/nrpe -c/usr/local/nagios/etc/nrpe.cfg -d">>/etc/rc.local tail -2 /etc/rc.local 三、Nagios服务器端监控3.1修改主配置文件（新手不需要，需要的话自己加上去书上582页）
cp /usr/local/nagios/etc/nagios.cfg{,.ori} vim /usr/local/nagios/etc/nagios.cfg +34 增加如下主机和服务的配置文件 cfg_file=/usr/local/nagios/etc/objects/hosts.cfg cfg_file=/usr/local/nagios/etc/objects/services.cfg cfg_dir=/usr/local/nagios/etc/objects/services/ 然后注释下列 # Definitions for monitoring the local (Linux) host #cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
根据已有数据生成hosts.cfg cd /usr/local/nagios/etc/objects/ head -51 localhost.cfg >hosts.cfg chown -R nagios.nagios/usr/local/nagios/etc/objects/hosts.cfg touch services.cfg chown -R nagios.nagios /usr/local/nagios/etc/objects/services.cfg mkdir services chown -R nagios.nagios/usr/local/nagios/etc/objects/services ls -lrt total 60
3配置Nagios服务器端监控项1、定义要监控的Nagios客户端主机cd /usr/local/nagios/etc/objects/ cp hosts.cfg{,.ori1} egrep -v "#|^$" hosts.cfg.ori1 >hosts.cfg vim hosts.cfg 检查
[iyunv@m01 objects]# cat hosts.cfg define host{ use linux-server host_name web01 alias web01 address 172.16.1.8 } define host{ use linux-server host_name web02 alias web02 address 172.16.1.7 } define host{ use linux-server host_name backup alias backup address 172.16.1.41 } define host{ use linux-server host_name nfs01 alias nfs01 address 172.16.1.31 } define host{ use linux-server host_name db01 alias db01 address 172.16.1.51 } define host{ use linux-server host_name lb01 alias lb01 address 172.16.1.5 } define host{ use linux-server host_name lb02 alias lb02 address 172.16.1.6 } define hostgroup{ hostgroup_name linux-servers alias Linux Servers members web01,web02,backup,nfs01,db01,lb01,lb02 }
2、配置services.cfg，定义要监控的资源服务cp services.cfg{,.ori} vim services.cfg cat services.cfg define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description DiskPartition check_command check_nrpe!check_disk } define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description SwapUseage check_command check_nrpe!check_swap } define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description MEMUseage check_command check_nrpe!check_mem } define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description Current Load check_command check_nrpe!check_load } define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description DiskIostat check_command check_nrpe!check_iostat!5!11 } define service { use generic-service host_name web01,web02,backup,nfs01,db01,lb01,lb02 service_description PING check_command check_ping!100.0,20%!500.0,60% }
3、调试hosts.cfg和service.cfg的所有配置cp commands.cfg{,.ori} vim commands.cfg tail -5 commands.cfg # 'check_nrpe' command definition define command{ command_name check_nrpe command_line $USER1$/check_nrpe-H $HOSTADDRESS$ -c $ARG1$ }
4、权限问题cd /usr/local/nagios/etc/ sed -i 's#nagiosadmin#oldboy#g' cgi.cfg
5、检查语法/etc/init.d/nagioscheckconfig 出现OK就可以启动了 /etc/init.d/nagios start 如果已经启动了，就执行/etc/init.d/nagios reload
在网页输入服务器端IP/nagios就可以看到结果啦（请耐心等待5-10分钟）
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