分类： LINUX
2011-09-12 18:44:31
1、 解决nagios的依赖关系，和所需组件：
# yum -y install httpd gcc glibc glibc-common *gd* php php-mysql mysql mysql-server
2、 nagios所需组件：nagios nagios-plugins ndoutils(非必须) ，
linux客户端：nrpe windows客户端NSClient++
创建nagiso用户和组：
# groupadd nagcmd
# useradd -m nagios
# usermod -a -G nagcmd nagios
# usermod -a -G nagcmd apache
编译安装nagios:
# tar zxf nagios-3.1.2.tar.gz
# cd nagios-3.1.2
# ./configure --with-command-group=nagcmd --enable-event-broker --prefix=/var/www/nagios
# make all
# make install
# make install-init
# make install-config
# make install-commandmode
为email指定您想用来接收nagios警告信息的邮件地址，默认是本机的nagios用户:
# vi /var/www/nagios/etc/objects/contacts.cfg
email nagios@localhost #这个是默认设置
在httpd的配置文件目录(conf.d)中创建Nagios的Web程序配置文件：
# make install-webconf
创建一个登录nagios web程序的用户，这个用户帐号在以后通过web登录nagios认证时所用：
# htpasswd -c /var/www/nagios/htpasswd.users nagiosadmin
启动服务： #service httpd restart
编译安装nagios-plusgins:
# tar zxf nagios-plugins-1.4.13.tar.gz
# cd nagios-plugins-1.4.13
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/var/www/nagios --with-mysql=/usr/lib/mysql
#make && make install
启动服务：
检测配置文件：# /var/www/nagios/bin/nagios -v /var/www/nagios/etc/nagios.cfg
#service nagios restart
#chkconfig nagios add
#chkconfig nagios on
#setenforce 0 这个只是临时关闭selinux
当然，也可以通过以下方式将nagios的CGI程序运行于SELinux/targeted模式而不用关闭selinux：
# chcon -R -t httpd_sys_content_t /usr/local/nagios/sbin
# chcon -R -t httpd_sys_content_t /usr/local/nagios/share
在web中输入 并输入密码和账户
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
windows客户端安装:NSClient++-0.3.8-Win32.msi安装完后打开nagios.cfg文件将
注释去掉cfg_file=/usr/local/nagios/etc/objects/windows.cfg
定义windows.cfg
define host{
use windows-server ; Inherit default values from a template
host_name winserver ; The name we're giving to this host
alias My Windows Server ; A longer name associated with the host
address 192.168.0.191 ; 你主机的IP
}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
linux客户端的安装：
先添加nagios用户
useradd nagios
为了安装nrpe，先安装nagios-plugins-1.4.15.tar.gz 插件
# tar zxf nagios-plugins-1.4.15.tar.gz
# cd nagios-plugins-1.4.15
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios
# make
# make install
tar -zxvf nrpe-2.12.tar.gz
cd nrpe-2.12.tar.gz
./configure (会自动加载SSL)
#如果后面make报错,加如下参数
./configure --enable-ssl --with-ssl-lib=/usr/lib/(当然前提要有openssl)
make all
make install-plugin
make install-daemon
make install-daemon-config
4.配置nrpe信息
vim /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1 //允许监控的IP
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d
服务端
3.安装NRPE
cd nagios-nrpe_2.8.1
./configure #默认自动添加了openssl
#因为传送过程要加密,如果后面make报错,加如下参数
rpm -qa| grep ssl
openssl-devel-0.9.7a-43.17.el4_6.1
rpm -ql openssl-devel-0.9.7a-43.17.el4_6.1 | more
./configure --enable-ssl --with-ssl-lib=/lib/(当然前提要有openssl)
make all
make install-plugin
添加步骤：
vi /usr/local/nagios/etc/objects/commands.cfg
在nagios.cfg启用有以下行
cfg_file=/usr/local/nagios/etc/objects/mylinux.cfg
4.commands.cfg定义外部构件nrpe
#添加
#check nrpe
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
定义 mylinux.cfg
define host{
use linux-server
host_name mylinux
alias mylinux
address 192.168.0.27(客户端IP既被监控的IP)
}
define service{
use generic-service
host_name mylinux
service_description check-swap
check_command check_nrpe!check_swap
}
define service{
use generic-service
host_name mylinux
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name mylinux
service_description check-disk
check_command check_nrpe!check_had1
define service{
use generic-service
host_name mylinux
service_description check-users
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name mylinux
service_description otal_procs
check_command check_nrpe!check_total_procs
}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
define service{
use generic-service
host_name mylinux
service_description httpd
check_command check_http! -H 192.168.0.27
}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
nagios监控mysql服务器：
1、建立专用数据库：
[root@svr3 ~]# /usr/local/webserver/mysql/bin/mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 51910
Server version: 5.5.3-m3-log Source distribution
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database nagios;
Query OK, 1 row affected (0.00 sec)
mysql> grant select on nagios.* to nagios@'%' identified by '123qweasd';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> select User,Password,Host from user;
+----------------+-------------------------------------------+------------------+
| User | Password | Host |
+----------------+-------------------------------------------+------------------+
| root | *84BB5DF4823DA319BBF86C99624479A198E6EEE9 | localhost |
| nagios | *A1F1CB851D62F002C09A0C9C4A76262473432F55 | % |
+----------------+-------------------------------------------+------------------+
14 rows in set (0.00 sec)
12 rows in set (0.00 sec)
[root@svr3 ~]# /usr/local/nagios/libexec/check_mysql -H 192.168.0.3 -u nagios -d nagios -p 123qweasd
Uptime: 970046 Threads: 1 Questions: 684583 Slow queries: 3 Opens: 672 Flush tables: 1 Open tables:
注意：check_mysql必须如果没有则说明mysql-devel没有安装，需要安装后在重新编译安装nagios-plugins这个包
369 Queries per second avg: 0.705
[root@svr4 nrpe_install]# /usr/local/nagios/libexec/check_mysql -H 192.168.0.3 -u nagios -d nagios -p 123qweasd
Uptime: 970348 Threads: 1 Questions: 684584 Slow queries: 3 Opens: 672 Flush tables: 1 Open tables: 369 Queries per second avg: 0.705
果断开始设置：
#定义用户
#定义组，及隶属用户
#用户增加
在command.cfg里增加插件命令：
#check mysql
define command{
command_name check_mysql
command_line $USER1$/check_mysql -H $HOSTADDRESS$ -u nagios -d nagios -p 123qweasd
}
#定义服务：
define service {
host_name mysql
check_period 24x7
max_check_attempts 2
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 5
notification_period 24x7
notification_options w,u,c,r
check_command check_mysql
}
飞信报警
1.修改模板文件
修改concont.cfg
2.
修改
commands.cfg
define command{
command_name notify-service-by-fetion
command_line /usr/bin/fetion --mobile 15003880800 --pwd 123qweQWE --to 15003880800 --msg-tpye=0 --msg-utf8 $HOSTNAME
}
########################################
配置pnp，使其能够汇出流量图
tar zxvf pnp-0.4.12.tar.gz
cd pnp-0.4.12
./configure
--with-nagios-user=nagios \
--with-nagios-group-nagios \
--with-rrdtool=/usr/local/rrdtool/bin/rrdtool \
--with-perfdata-dir=/var/www/nagios/share/perfdata
#########################################
nagios常出的错误总结：
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