基于Nginx平台部署Nagios监控系统
环境：CentOS 6.5（最小化安装）Nginx：1.6.2
Nagios：3.3.1
安装基本环境：
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# yum -y install gcc gcc-c++
# yum -y install perl-devel perl
源码安装PHP：
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# yum -y install mysql mysql-devel
# yum -y install gd-2.0.35-11.el6.x86_64.rpm gd-devel-2.0.35-11.el6.x86_64.rpm
# yum -y install libxml2 libxml2-devel
# tar -zxvf zlib-1.2.7.tar.gz &>/dev/null
# cd zlib-1.2.7
# ./configure -prefix=/usr/local/zlib&&make &&make install
# tar -zxvf libmcrypt-2.5.7.tar.gz &>/dev/null
# cd libmcrypt-2.5.7
# ./configure &&make &&make install
# useradd -s /sbin/nologin www
# tar -jxvf php-5.3.8.tar.bz2 &>/dev/null
# cd php-5.3.8
# ./configure --prefix=/usr/local/php --enable-mbstring --enable-soap --enable-wddx=shared --enable-xml --with-gd --with-gettext --with-regex=system --with-zlib-dir=/usr/local/zlib --enable-fpm --with-jpeg-dir --with-fpm-user=www --with-fpm-group=www --enable-shmop --with-mcrypt --with-mysqli=mysqlnd
# make &&make install
# cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf
# sed -i '/run\/php-fpm.pid/s/^;//g' /usr/local/php/etc/php-fpm.conf
# sed -i '/^;pm.min_spare_servers/s/^;//g' /usr/local/php/etc/php-fpm.conf
# sed -i '/^;pm.max_spare_servers/s/^;//g' /usr/local/php/etc/php-fpm.conf
# sed -i '/^;pm.start_servers/s/^;//g' /usr/local/php/etc/php-fpm.conf
# /usr/local/php/sbin/php-fpm
# echo '/usr/local/php/sbin/php-fpm'>>/etc/rc.local
# netstat -tunlp |grep php
tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 1592/php-fpm
# ps -ef|grep php|grep -v grep
root 1592 10 12:36 ? 00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www 1593 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1594 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1595 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1596 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1597 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1598 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1599 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1600 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1601 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1602 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1603 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1604 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1605 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1606 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1607 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1608 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1609 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1610 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1611 15920 12:36 ? 00:00:00 php-fpm: pool www
www 1612 15920 12:36 ? 00:00:00 php-fpm: pool www
#
安装Nginx：
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# tar -jxvf pcre-8.12.tar.bz2 &>/dev/null
# cd pcre-8.12
# ./configure &&make &&make install
zlib上面安装php时已安装
# tar -zxvf openssl-1.0.1c.tar.gz &>/dev/null
# cd openssl-1.0.1c
# ./config &&make &&make install
# tar -zxvf nginx-1.6.2.tar.gz &>/dev/null
# cd nginx-1.6.2
# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-pcre=/software/pcre-8.12 --with-zlib=/software/zlib-1.2.7 --with-openssl=/software/openssl-1.0.1c --with-http_stub_status_module
# make &&make install
编写/etc/init.d/nginx文件
# /etc/init.d/nginx start
Starting nginx:
#
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# chkconfig --add nginx
# chkconfig nginx on
# ln -s /usr/local/nagios/share /usr/local/nginx/html/nagios
# ll /usr/local/nginx/html/
total 8
-rw-r--r-- 1 root root 537 Apr 18 10:59 50x.html
-rw-r--r-- 1 root root 612 Apr 18 10:59 index.html
lrwxrwxrwx 1 root root23 Apr 18 12:43 nagios -> /usr/local/nagios/share
还需要自己编写nginx.conf、fastcgi.conf、cgi.conf、start_perl_cgi.sh、perl-fcgi.pl
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给Nginx添加对Perl的CGI支持（默认不支持）：
安装FCGI模块：
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# tar -zxvf FCGI-0.73.tar.gz &>/dev/null
# cd FCGI-0.73
# perl Makefile.PL &&make &&make install
# tar -zxvf FCGI-ProcManager-0.25.tar.gz &>/dev/null
# cd FCGI-ProcManager-0.25
# perl Makefile.PL &&make &&make install
# tar -zxvf IO-1.25.tar.gz &>/dev/null
# cd IO-1.25
# perl Makefile.PL &&make &&make install
# tar -zxvf IO-All-0.39.tar.gz &>/dev/null
# cd IO-All-0.39
# perl Makefile.PL &&make &&make install
# tar -zxvf spawn-fcgi-1.6.3.tar.gz &>/dev/null
# cd spawn-fcgi-1.6.3
# ./configure &&make &&make install
# unzip perl-fcgi.zip
# cp perl-fcgi.pl /usr/local/nginx/
# chmod 755 /usr/local/nginx/perl-fcgi.pl
# cd /usr/local/nginx/
# chmod 755 start_perl_cgi.sh
编写start_perl_cgi.sh脚本
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# ./start_perl_cgi.sh start
start perl-fcgi done
# ll /usr/local/nginx/logs/perl-fcgi.sock
srwxr-xr-x 1 www www 0 Apr 18 11:02 /usr/local/nginx/logs/perl-fcgi.sock
# echo "/bin/sh /usr/local/nginx/start_perl_cgi.sh start" >>/etc/rc.local
安装Nagios：
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# yum -y install libgd2-noxpm libgd2-noxpm-dev
# yum -y install php-gd
# groupadd nagcmd
# useradd -G nagcmd nagios
# usermod -G nagcmd www
# tar -zxvf nagios-3.3.1.tar.gz &>/dev/null
# cd nagios
# ./configure --with-command-group=nagcmd --prefix=/usr/local/nagios --with-gd-lib=/usr/lib --with-gd-nc=/usr/include
# make all &&make install &&make install-init &&make install-config &&make install-commandmode
# yum -y install httpd-tools
# cd /usr/local/nagios/etc/
# htpasswd -cm htpasswd.users yfshare
# sed -i '/authorized\_for\_/s/nagiosadmin/&\,yfshare/g' cgi.cfg
# cd /usr/local/nginx/conf/
# mkdir /usr/local/nagios/logs
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg |grep ^Total
Total Warnings: 0
Total Errors: 0
# /etc/init.d/nagios start
Starting nagios: done.
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# chkconfig --add nagios
# chkconfig nagios on
也可通过访问http://www.4webhelp.net/us/password.php生成htpasswd.users
# /etc/init.d/nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
#
# /etc/init.d/nginx restart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:
Starting nginx:
#
安装Nagios-plugin：
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# tar -zxvf nagios-plugins-1.4.15.tar.gz &>/dev/null
# cd nagios-plugins-1.4.15
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-perl-modules
# make &&make install
# ls /usr/local/nagios/libexec/|wc -l
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#
安装NRPE：
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# yum -y install openssl openssl-devel
# tar -zxvf nrpe-2.13.tar.gz &>/dev/null
# cd nrpe-2.13
# ./configure
# make all &&make install-plugin &&make install-daemon &&make install-daemon-config
# cd /usr/local/nagios/etc/
# sed -i '/allowed_host/s/127.0.0.1/&,192.168.10.99/g' nrpe.cfg
# /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
# /usr/local/nagios/libexec/check_nrpe -H localhost
NRPE v2.13
#
访问:http://192.168.10.99/nagios
但是，打开页面时，其他选项卡都是显示的502 Bad Gateway
# chown nagios:nagcmd /usr/local/nagios/ -R
# chown www:nagcmd /usr/local/nginx/ -R
# cd /usr/local/nginx/
# ./start_perl_cgi.sh start
ERROR PID file /usr/local/nginx/logs/perl-fcgi.pid already exists
start perl-fcgi done
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因为perl-fcgi进程意外中断，但是进程未退出变成了孤儿进程，所以就变成这样了
修改下脚本start_perl_cgi.sh
# ./start_perl_cgi.sh start
start perl-fcgi done
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# /etc/init.d/nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
# /etc/init.d/nginx restart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:
Starting nginx:
#
OK，在Nginx上安装Nagios成功
如果出现上面的问题，解决方法：
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# sed -i '/use_authentication/s/1/0/g' /usr/local/nagios/etc/cgi.cfg
# /etc/init.d/nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
# /etc/init.d/nginx restart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:
Starting nginx:
#
访问http://192.168.10.99/nagios/
OK，Successful
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