nagios 3.x安装

最近这几台，几台服务器老挂，，可能是因为太老了，，没办法，只能弄个NAGIOS来监控它

 

首先安装http,什么都不用说了吧，

wget
tar -zxvf httpd-2.2.9.tar.gz
cd httpd-2.2.9
./configure --prefix=/usr/local/apache --enable-so --enable-rewrite --enable-mods-shared=most
make;make install
cd ..

 

接下来开始安装nagios

wget
groupadd nagios
groupadd nagcmd
useradd nagios -g nagcmd -d /usr/local/nagios
mkdir -p /usr/local/nagios
chown -R nagios.nagios /usr/local/nagios
chmod 755 /usr/local/nagios

tar -zxvf nagios-3.0.6.tar.gz
cd nagios-3.0.6
./configure --with-command-group=nagcmd   
make all
make install
make install-init
make install-config
make install-commandmode
cd ..

默认安装到/usr/local/nagios目录下

生成一个用户密码:

/usr/local/apache2/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

 

配置一下httpd.conf

cd /usr/local/apache/conf
cat >>httpd.conf<ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"

#  SSLRequireSSL
   Options ExecCGI
   AllowOverride None
   Order allow,deny
   Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
   AuthName "Nagios Access"
   AuthType Basic
   AuthUserFile /usr/local/nagios/etc/htpasswd.users
   Require valid-user

Alias /nagios "/usr/local/nagios/share"

#  SSLRequireSSL
   Options None
   AllowOverride None
   Order allow,deny
   Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
   AuthName "Nagios Access"
   AuthType Basic
   AuthUserFile /usr/local/nagios/etc/htpasswd.users
   Require valid-user

eof

 

安装nagios换件

wget
tar -zxvf nagios-plugins-1.4.13.tar.gz
cd nagios-plugins-1.4.13
./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-gourp=nagios --enable-perl-modules
make;make install
cd ..

chkconfig --add nagios
service nagios start

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg  //检测配置文件

service nagios restart

 

 

修改mail

vi /usr/local/nagios/etc/objects/contacts.cfg

 

增加一个hosts.cfg,内容如下:

[root@localhost objects]# cat hosts.cfg
define host{
        use                     linux-server
        host_name               nagios-server
        alias                   nagios-server
        address                 10.88.12.89
        max_check_attempts      5
        normal_check_interval   3
        retry_check_interval    2
        check_period            24x7
        notification_interval   10
        notification_period     24x7
        notification_options    d,u,r
        contact_groups          admins
        }
define service{
        use                     generic-service
        host_name               nagios-server
        service_description     HTTP
        check_command           check_http
        }
define  service{
        use                     generic-service
        host_name               nagios-server
        service_description     SSH
        check_command           check_ssh
        }
define service{
        use                     local-service
        host_name               nagios-server
        service_description     PING
        check_command           check-host-alive
        }

再将cfg_file=/usr/local/nagios/etc/hosts.cfg，加入到nagios.cfg里面

 

重启服务

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
service nagios restart

 

user:nagiosadmin

pwd:刚才生成的

这样就OK了

 

 

nagios访问apache权限问题解决

nagios web界面提示

It appears as though you do not have permission to view information for any of the services you requested...

打开cgi.cfg配置文件，里面有个参数:
use_authentication=1
为了保障系统的安全性，nagios设置了这个参数，默认为1,改为0即可

1.

装了几次，换了几个版本的系统，脑袋都大了，终于解决了

nrpe在 ./configure时提示

checking for SSL... configure: error: Cannot find ssl libraries

 

把openssl-devel装上就可以了

 

2.

nagios web界面提示

It appears as though you do not have permission to view information for any of the services you requested...

打开cgi.cfg配置文件，里面有个参数:
use_authentication=1
为了保障系统的安全性，nagios设置了这个参数，默认为1,改为0即可。

 

 

3.

Service Commands 中Enable notifications for this service时报错

 

Sorry Dave, I can't let you do that...

It seems that you have chosen to not use the authentication functionality of the CGIs.

I don't want to be personally responsible for what may happen as a result of allowing unauthorized users to issue commands to Nagios,so you'll have to disable this safeguard if you are really stubborn and want to invite trouble.

Read the section on CGI authentication in the HTML documentation to learn how you can enable authentication and why you should want to.

 

修改cgi.cfg文件

修改use_authentication=1 (默认) ，如果没有添加，重启nagios服务。

 

4.

is not allowed to connect to this MySQL server

server(nagios服务端192.168.0.132)
#/usr/local/nagios/libexec/check_mysql -H 192.168.0.207 -u root -p xukixu
此时可能会出现错误：Host '192.168.0.132' is not allowed to connect to this MySQL server

因此只要在客户端做个mysql授权用户访问即可
2、client(客户端192.168.0.207)
#mysql -uroot -pabcd
mysql>grant all privileges on *.* to  identified by 'abcd;
mysql>flush privileges;
mysql>quit;