nagios部署+短信和邮件报警
操作系统 CentOS6.6
服务端：10.0.0.20
客户端：10.0.0.50
一.nagios的服务端安装部署
1.nagios安装
[root@manager src]# rz
rz waiting to receive.
Starting zmodem transfer. Press Ctrl+C to cancel.
Transferring nagios-cn-3.2.3.tar.bz2...
100% 9412 KB 9412 KB/sec 00:00:01 0 Errors
tar xf nagios-cn-3.2.3.tar.bz2
cd nagios-cn-3.2.3
useradd -m -s /bin/bash nagios
groupadd nagcmd
make install; make install-init;make install-commandmode;make install-config;make install-webconf
ll /usr/local/nagios/ #出现以下文件代表成功
drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 bin
drwxrwxr-x 3 nagios nagios 4096 Mar 12 08:08 etc
drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 libexec
drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 sbin
drwxrwxr-x 9 nagios nagios 4096 Mar 12 08:08 share
drwxrwxr-x 6 nagios nagios 4096 Mar 12 08:08 var
chmod o+rwx /usr/local/nagios/var/rw
2.nagios plugin 插件安装
[root@manager src]# rz rz waiting to receive. Starting zmodem transfer. Press Ctrl+C to cancel. Transferring nagios-plugins-1.4.13.tar.gz... 100% 2226 KB 2226 KB/sec 00:00:01 0 Errors
[root@manager src]# tar xf nagios-plugins-1.4.13.tar.gz [root@manager src]# cd nagios-plugins-1.4.13
#安装依赖
yum install make apr* autoconf automake curl curl-devel gcc gcc-c++ zlib-devel \ openssl openssl-devel pcre-devel gd gd-devel kernel keyutils patch perl perl-devel \ kernel keyutils kernel-headers compat* mpfr cpp glibc libgomp libstdc++-devel ppl \ cloog-ppl keyutils-libs-devel libcom_err-devel libsepol-devel libselinux-devel \ krb5-devel zlib-devel libXpm* freetype libjpeg* libpng* php-common php-gd ncurses* libtool* libxml2 libxml2-devel patch -y
./configure --prefix=/usr/local/nagios --with-mysql=/usr/local/mysql/ make make install
file /usr/lib64/libxcb-reply.so.1.0.0 from install of compat-xcb-util-0.4.0-2.2.el6.x86_64 conflicts with file from package xcb-util-0.3.6-5.el6.x86_64
有冲突卸载掉这个有冲突的
yum remove -y xcb-util-0.3.6-5.el6.x86_64
3.nrpe安装
[root@manager src]# rz rz waiting to receive. Starting zmodem transfer. Press Ctrl+C to cancel. Transferring nrpe-2.12.tar.gz... 100% 396 KB 396 KB/sec 00:00:01 0 Errors
tar xf nrpe-2.12.tar.gz
cd nrpe-2.12 ./configure make ./configure make all make install-plugin make install-daemon make install-daemon-config \cp src/check_nrpe /usr/local/nagios/libexec/ /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d' >> /etc/rc.local
要重启nrpe进行就先杀掉进行，然后重启 kill `ps aux |grep nrpe |grep -v grep |awk '{print $2}'` /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d 本机测试下： /usr/local/nagios/libexec/check_nrpe -H localhost -c check_users
加入系统服务
加入系统服务并设为开机自动 chkconfig --add nagios chkconfig nagios on chown nagios.nagios /usr/local/nagios/var/rw # 测试配置文件是否正确 /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
添加别名命令，方便测试配置文件
vi ~/.bashrc 在里面用alias 来自定义一个命令来代替，这里我用check alias check='/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg' source ~/.bashrc 此时可以用check命令来检测配置文件了
安装 nginx 的FCGI模块
cd /usr/local/src/ rz tar xf FCGI-0.74.tar.gz cd FCGI-0.74 perl Makefile.PL make && make install
安装IO 和IO-ALL模块
[root@manager src]# tar xf IO-1.25.tar.gz [root@manager src]# cd IO-1.25 [root@manager IO-1.25]# perl Makefile.PL
[root@manager IO-1.25]# make && make install
[root@manager src]# tar xf IO-All-0.81.tar.gz
[root@manager src]# cd IO-All-0.81
[root@manager IO-All-0.81]# perl Makefile.PL
[root@manager IO-All-0.81]# make && make install
上传fastcgi 的启动脚本。
[root@manager src]# rz
rz waiting to receive.
Starting zmodem transfer. Press Ctrl+C to cancel.
Transferring perl-fcgi.zip...
100% 2 KB 2 KB/sec 00:00:01 0 Errors
[root@manager src]# unzip perl-fcgi.zip
Archive: perl-fcgi.zip
inflating: perl-fcgi.pl
[root@manager src]# cp perl-fcgi.pl /usr/local/nginx/
[root@manager IO-All-0.81]# chmod 755 /usr/local/nginx/perl-fcgi.pl
[root@manager nginx]# ./start_perl_cgi.sh start
start perl-fcgi done
[root@manager ~]# cat /usr/local/nginx/start_perl_cgi.sh #!/bin/bash #set -x dir=/usr/local/nginx/ stop () { #pkill -f $dir/perl-fcgi.pl kill $(cat $dir/logs/perl-fcgi.pid) rm $dir/logs/perl-fcgi.pid 2>/dev/null rm $dir/logs/perl-fcgi.sock 2>/dev/null echo "stop perl-fcgi done" } start () { rm $dir/now_start_perl_fcgi.sh 2>/dev/null chown nobody.root $dir/logs echo "$dir/perl-fcgi.pl -l $dir/logs/perl-fcgi.log -pid $dir/logs/perl-fcgi.pid -S $dir/logs/perl-fcgi.sock" >>$dir/now_start_perl_fcgi.sh chown nobody.nobody $dir/now_start_perl_fcgi.sh chmod u+x $dir/now_start_perl_fcgi.sh sudo -u nobody $dir/now_start_perl_fcgi.sh echo "start perl-fcgi done" } case $1 in stop) stop ;; start) start ;; restart) stop start ;; esac
启动fastcgi
[root@manager nginx]# ./start_perl_cgi.sh start
start perl-fcgi done
# 重复启动会报这样的错 使用行参restart 或者stop 以后再start 就不会报这样的错。
[root@manager nginx]# ./start_perl_cgi.sh start
ERROR PID file /usr/local/nginx/logs/perl-fcgi.pid already exists
start perl-fcgi done
把start_perl_cgi.sh文件中的nobody全部用nagios替换，nginx 目录上的用户
[root@manager ~]# sed -i 's#nobody#nagios#g' /usr/local/nginx/start_perl_cgi.sh
[root@manager ~]# ps -ef |grep nagios nagios 1695 1 0 05:52 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d nagios 1707 1 0 05:52 ? 00:00:00 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
# 取消用户认证(方便调试)vi /usr/local/nagios/etc/cgi.cfg
找到use_authentication=1并把值改为0
#修改联系人邮箱，修改为用于报警接收的邮件地址vi /usr/local/nagios/etc/objects/contacts.cfg
email 13311802282@163.com (默认是nagios@localhost换成自己的邮箱)
产生这样一个socket文件表示启动成功了
[root@manager nginx]# /etc/init.d/nagios start Starting nagios: done.
二，nagios的被监控端安装部署
1.安装nagios插件
[root@master ~]# groupadd nagios [root@master ~]# useradd nagios -M -s /sbin/nologin -g nagios [root@master ~]# rz rz waiting to receive. Starting zmodem transfer. Press Ctrl+C to cancel. Transferring nagios-plugins-1.4.13.tar.gz... 100% 2226 KB 2226 KB/sec 00:00:01 0 Errors
[root@master nagios-plugins-1.4.13]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --with-mysql=/usr/local/mysql && make && make install
2.安装nrpe
[root@master nagios-plugins-1.4.13]# cd [root@master ~]# rz rz waiting to receive. Starting zmodem transfer. Press Ctrl+C to cancel. Transferring nrpe-2.12.tar.gz... 100% 396 KB 396 KB/sec 00:00:01 0 Errors
[root@master nrpe-2.12]# ./configure && make all && make install-plugin && make install-daemon && make install-daemon-config
[root@master nrpe-2.12]# echo $? （0未报错）
0
# 启动nrpe
[root@master nrpe-2.12]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[root@master nrpe-2.12]# ps -ef |grep nrp
nagios 23592 1 0 09:28 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
# 设置开机启动进程
[root@master nrpe-2.12]# echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d' >> /etc/rc.local
监控服务端本机：自己监控自己不需要配置nrpe，服务端的nrpe只用于获取客户端的nrpe传送过来的数据，在这里因为中文版的nagios已经默认有些配置，等会儿修改下直接用了
监控客户端：监控的服务有：mysql、nginx、memory、ip连接数、僵死的进程、磁盘空间、磁盘IO、登录用户数、进程总数、cpu负载、PING、SSH
有两个红色的不知道啥吊情况。
3.操作数据库mysql
mysql> create database nagios; Query OK, 1 row affected (0.07 sec) mysql> grant select on nagios.* to nagios@'%' identified by '123'; Query OK, 0 rows affected (0.05 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> select user,password,host from mysql.user; +--------+-------------------------------------------+-----------+ | user | password | host | +--------+-------------------------------------------+-----------+ | root | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | localhost | | root | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | master | | root | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 127.0.0.1 | | root | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | ::1 | | | | localhost | | | | master | | repl | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 10.0.0.% | | root | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 10.0.0.% | | nagios | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | % | +--------+-------------------------------------------+-----------+ 9 rows in set (0.03 sec)
# 添加mysql库到系统搜索库 vim /etc/ld.so.conf /usr/local/mysql/lib ldconfig # 要监控磁盘io，还得安装sysstat这个工具包 yum install sysstat -y # 配置客户端上面的nrpe vim /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1,10.0.0.20; #允许server主机获取信息
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 （由于我的磁盘时scsii的硬盘所以不是hd是sd） 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 #----------------------------------下面是后加的---------------------------------------------------- command[check_sda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda1 command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2 command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% command[check_iostat]=/usr/local/nagios/libexec/check_iostat.sh -d sda -w 6 -c 10 command[check_mysql]=/usr/local/nagios/libexec/check_mysql -H 192.168.0.22 -u nagios -p 123456 -d nagios command[check_nginx]=/usr/local/nagios/libexec/check_nginx.sh -u 192.168.0.22 -p /status -w 4000 -c 5000 command[check_mem]=/usr/local/nagios/libexec/check_memory.pl -f -w 20 -c 10 command[check_ip_conn]=/usr/local/nagios/libexec/ip_conn.sh 200 250 command[check_ssh]=/usr/local/nagios/libexec/check_tcp -p 22 -w 1.0 -c 10.0
配置完重新启动进程
[root@master ~]# kill `ps aux |grep nrpe |grep -v grep |awk '{print $2}'` [root@master ~]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d [root@master ~]# ps -ef |grep nrpe nagios 1598 1 0 10:04 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d root 1600 1491 0 10:04 pts/0 00:00:00 grep nrpe
服务端配置：
[root@manager ~]# cp /usr/local/nagios/etc/objects/localhost.cfg /usr/local/nagios/etc/objects/localhost.cfg.bak [root@manager ~]# > /usr/local/nagios/etc/objects/localhost.cfg [root@manager ~]# vim /usr/local/nagios/etc/objects/localhost.cfg
#这是自己监控自己的配置文件
define host{ use linux-server host_name localhost alias localhost address 127.0.0.1 icon_image server.gif statusmap_image server.gd2 2d_coords 500,200 3d_coords 500,200,100 } define hostgroup{ hostgroup_name linux-servers ; The name of the hostgroup alias Linux Servers ; Long name of the group members * ; Comma separated list of hosts that belong to this group } define servicegroup{ servicegroup_name 全部联通性检查 alias 联通性检查 members localhost,PING,nagios-client,PING } define service{ use local-service ; Name of service template to use host_name * service_description PING check_command check_ping!100.0,20%!500.0,60% } define service{ use local-service ; Name of service template to use host_name localhost service_description 根分区 check_command check_local_disk!20%!10%!/ } define service{ use local-service ; Name of service template to use host_name localhost service_description 登录用户数 check_command check_local_users!20!50 } define service{ use local-service ; Name of service template to use host_name localhost service_description 进程总数 check_command check_local_procs!250!400!RSZDT } define service{ use local-service ; Name of service template to use host_name localhost service_description 系统负荷 check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0 } define service{ use local-service ; Name of service template to use host_name localhost service_description 交换空间利用率 check_command check_local_swap!20!10 } define service{ use local-service ; Name of service template to use host_name localhost service_description SSH check_command check_tcp!22!1.0!10.0 notifications_enabled 0 }
服务器端监控被监控主机的配置文件：cp /usr/local/nagios/etc/objects/localhost.cfg /usr/local/nagios/etc/objects/nagios-client.cfg vim /usr/local/nagios/etc/objects/nagios-client.cfg 修改完成后的配置如下 define host{ use linux-server host_name nagios-client alias nagios-client address 10.0.0.50 icon_image server.gif statusmap_image server.gd2 2d_coords 500,200 3d_coords 500,200,100 } define service{ use local-service ; Name of service template to use host_name * service_description PING check_command check_ping!100.0,20%!500.0,60% } define service{ use local-service ; Name of service template to use host_name nagios-client service_description boot分区 check_command check_nrpe!check_sda1 } define service{ use local-service ; Name of service template to use host_name nagios-client service_description 根分区 check_command check_nrpe!check_sda2 } define service{ use local-service ; Name of service template to use host_name nagios-client service_description 登录用户数 check_command check_nrpe!check_users } define service{ use local-service ; Name of service template to use host_name nagios-client service_description 进总程数 check_command check_nrpe!check_total_procs } define service{ use local-service ; Name of service template to use host_name nagios-client service_description CPU平均负载 check_command check_nrpe!check_load } define service{ use local-service ; Name of service template to use host_name nagios-client service_description 虚拟内存 check_command check_nrpe!check_swap } define service{ use local-service ; Name of service template to use host_name nagios-client service_description SSH check_command check_nrpe!check_ssh notifications_enabled 0 } define service{ use local-service ; Name of service template to use host_name nagios-client service_description 僵死进程数 check_command check_nrpe!check_zombie_procs } define service{ use local-service ; Name of service template to use host_name nagios-client service_description iostat check_command check_nrpe!check_iostat } define service{ use local-service ; Name of service template to use host_name nagios-client service_description mysql check_command check_nrpe!check_mysql } define service{ use local-service ; Name of service template to use host_name nagios-client service_description nginx check_command check_nrpe!check_nginx } define service{ use local-service ; Name of service template to use host_name nagios-client service_description memory check_command check_nrpe!check_mem } define service{ use local-service ; Name of service template to use host_name nagios-client service_description IP连接数 check_command check_nrpe!check_ip_conn }
出现问题会自动发送邮件到你设置的邮箱
这个部署的不太成功！网页没有显示。。。。明天重新再来一遍，再好好理解理解，这些安装包都特么好难找，这下我应该算是收集全了，在部署应该很快。
