nagios的web页面从apache到nginx的迁移步骤

Nginx和Nagios的安装过程略。由于Nginx不支持Perl的CGI，所以先需要来搭建Perl环境。让Nginx支持Perl的CGI方法有好几种，基本原理都是通过Perl的FCGI模块实现。

yum -y install perl-devel

安装FCGI模块

wget http://search.cpan.org/CPAN/authors/id/F/FL/FLORA/FCGI-0.73.tar.gz
tar xvzf FCGI-0.73.tar.gz
cd FCGI-0.73
perl Makefile.PL
make && make install
cd ../

安装FCGI-ProcManager模块

wget http://search.cpan.org/CPAN/authors/id/G/GB/GBJK/FCGI-ProcManager-0.19.tar.gz
tar xvzf FCGI-ProcManager-0.19.tar.gz
cd FCGI-ProcManager-0.19
perl Makefile.PL
make && make install
cd ../

安装IO perl-IO-String IO::ALL模块

#安装IO
wget http://search.cpan.org/CPAN/authors/id/G/GB/GBARR/IO-1.25.tar.gz
tar zxvf IO-1.25.tar.gz
cd IO-1.25
perl Makefile.PL
make && make install
cd ../
#安装 perl-IO-String
yum install perl-IO-String
#安装IO::ALL模块
wget http://search.cpan.org/CPAN/authors/id/I/IN/INGY/IO-All-0.87.tar.gz
tar zxvf IO-All-0.87.tar.gz
cd IO-All-0.87
perl Makefile.PL
make && make install
cd ../

下载Perl脚本

wget http://download.chekiang.info/blog/perl-fcgi.zip
unzip perl-fcgi.zip
cp perl-fcgi.pl /usr/local/nginx/
#修改脚本权限
chmod 755 /usr/local/nginx/perl-fcgi.pl

建立一个CGI启动/停止脚本
这个SHELL脚本只是为了方便管理上面的Perl脚本。脚本中的www为nginx的运行用户，请据自己的实际情况调整。
注意事项：不能用root用户执行(会提示). 要用与Nginx相同身份的用户执行。否则可能会在Nginx Log中提示 Permision Denied。

vim /usr/local/nginx/start_perl_cgi.sh
#!/bin/bash
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 www.www $dir/logs
echo “$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 www.www $dir/now_start_perl_fcgi.sh
chmod u+x $dir/now_start_perl_fcgi.sh
sudo -u www $dir/now_start_perl_fcgi.sh
echo “start perl-fcgi done”
}
case $1 in
stop)
stop
;;
start)
start
;;
restart)
stop
start
;;
esac
#修改脚本权限
chmod 755 /usr/local/nginx/start_perl_cgi.sh
#启动脚本
/usr/local/nginx/start_perl_cgi.sh start
正常情况下在/usr/local/webserver/nginx/logs下生成perl-fcgi.sock这个文件,如果没有生成,请检查下上面的步聚

#启动
/usr/local/nginx/start_perl_cgi.sh start

配置NGINX
Nagios Web界面登陆帐号及密码

htpasswd -c /usr/local/nagios/etc/nagiospasswd mike

如果你没有htpasswd(这个工具由Apache安装包所提供)，可在线生成，地址：http://www.4webhelp.net/us/password.php。
修改Nagios配置文件，给新增的用户增加访问权限

vi /usr/local/nagios/etc/cgi.cfg
#以下几项中分别加入新增的用户，多用户用逗号分隔。
authorized_for_system_information=nagiosadmin,mike
authorized_for_configuration_information=nagiosadmin,mike
authorized_for_system_commands=nagiosadmin,mike
authorized_for_all_services=nagiosadmin,mike
authorized_for_all_hosts=nagiosadmin,mike
authorized_for_all_service_commands=nagiosadmin,mike
authorized_for_all_host_commands=nagiosadmin,mike

nginx配置如下

#nagios
location ~ .*\.(cgi|pl)?$ {
gzip off;
root /usr/local/nagios/sbin;
rewrite ^/nagios/cgi-bin/(.*)\.cgi /$1.cgi break;
fastcgi_pass unix:/usr/local/nginx/logs/perl-fcgi.sock;
fastcgi_param SCRIPT_FILENAME /usr/local/nagios/sbin$fastcgi_script_name;
fastcgi_index index.cgi;
fastcgi_read_timeout 60;
fastcgi_param REMOTE_USER $remote_user;
include fastcgi.conf;
auth_basic “Nagios Access”;
auth_basic_user_file /usr/local/nagios/etc/htpasswd.users;
}
location ~ ^(/nagios.*\.php)(.*)$ {
root /home/wwwroot/monitor.nbhao.org;
# comment try_files $uri =404; to enable pathinfo
try_files $uri =404;
fastcgi_pass unix:/tmp/php56-cgi.sock;
fastcgi_index index.php;
include fastcgi.conf;
#include pathinfo.conf;
}

pnp4nagios配置如下

#PNP4Nagios
location ~ ^(/pnp4nagios.*\.php)(.*)$ {
root /home/wwwroot/monitor.nbhao.org;
if ( $uri !~ /pnp4nagios/index.php(.*)) {
rewrite ^/pnp4nagios/(.*)$ /$1;
break;
}
fastcgi_pass unix:/tmp/php53-cgi.sock;
fastcgi_index index.php;
include fastcgi.conf;
# this splits out the trailing path
# eg index.php?host -> $fastcgi_path_info == ‘host’
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME /usr/local/pnp4nagios/share/index.php;
auth_basic “Nagios Access”;
auth_basic_user_file /usr/local/nagios/etc/htpasswd.users;
}

特别注意pnp4nagios安装的时候需要确保php.ini中的disable_functions没有proc_open，否则会报Undefined variable的错误。找了好久才发现是这个问题。。。

nagios的web页面从apache到nginx的迁移步骤

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nagios的web页面从apache到nginx的迁移步骤

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