编译安装nagios

实例安装包nagios.zip下载 
yum install -y gcc glibc glibc-common gd gd-devel httpd php php-gd mysql* sendmailunzip nagios.zipuseradd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apacheecho 'export LC_ALL=C'>>/etc/profile
source /etc/profiletar zxvf nagios-3.5.1.tar.gz
cd nagios
./configure  --with-command-group=nagcmd
make all
make install
make install-init
make install-commandmode
make install-config
make install-webconf

创建htpasswd.users，并添加nagios网页登录的用户密码

htpasswd -cb /usr/local/nagios/etc/htpasswd.users nagios 123456

打开浏览器，输入本机ip地址/nagios进行访问

#在34行修改email地址
vim /usr/local/nagios/etc/objects/contacts.cfg

编译安装nagios-plugins插件

tar zxvf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-perl-modules
make
make install#检查nagios语法
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
/etc/init.d/nagios checkconfig#启动nagios
/etc/init.d/nagios start

编译安装nrpe

tar zxvf nrpe-2.12.tar.gz
cd nrpe-2.12
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config

创建hosts,services.cfg,services

cd /usr/local/nagios/etc/objectshead -51 localhost.cfg > hosts.cfg
#hosts.cfg实例配置
cat hosts.cfg
define host{use                     linux-server            ; Name of host template to use; This host definition will inherit all variables that are defined; in (or inherited by) the linux-server host template definition.host_name               192.168.1.171alias                   192.168.1.171address                 192.168.1.171}define host{use                     linux-server            ; Name of host template to use; This host definition will inherit all variables that are defined; in (or inherited by) the linux-server host template definition.host_name               192.168.1.172alias                   192.168.1.172address                 192.168.1.172}define hostgroup{hostgroup_name  linux-servers ; The name of the hostgroupalias           Linux Servers ; Long name of the groupmembers         192.168.1.171,192.168.1.172     ; Comma separated list of hosts that belong to this group}
touch services.cfgmkdir services#添加客户端配置文件,实例
vim services/192.168.1.171.cfg
define service{
use                     generic-service
host_name               192.168.1.171
service_description     Disk Partition
check_command           check_nrpe!check_disk
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     mem
check_command           check_nrpe!check_mem
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     load
check_command           check_nrpe!check_load
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     swap
check_command           check_nrpe!check_swap
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     iostat
check_command           check_nrpe!check_iostat
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     http
check_command           check_http!192.168.1.171
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     phpmyadmin
check_command           check_http!192.168.1.171 -u /phpmyadmin/
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     ping
check_command           check_ping!100.0,20%!500.0,60%
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     port_80
check_command           check_tcp!80
}
define service{
use                     generic-service
host_name               192.168.1.171
service_description     mysql
check_command           check_mysql!192.168.1.171
}
vim services/192.168.1.172.cfg
define service{
use                     generic-service
host_name               192.168.1.172
service_description     Disk Partition
check_command           check_nrpe!check_disk
}
define service{
use                     generic-service
host_name               192.168.1.172
service_description     mem
check_command           check_nrpe!check_mem
}
define service{
use                     generic-service
host_name               192.168.1.172
service_description     load
check_command           check_nrpe!check_load
}
define service{
use                     generic-service
host_name               192.168.1.172
service_description     swap
check_command           check_nrpe!check_swap
}
define service{
use                     generic-service
host_name               192.168.1.172
service_description     iostat
check_command           check_nrpe!check_iostat
}
define service{
use                     generic-service
host_name               192.168.1.172
service_description     mysql
check_command           check_mysql!192.168.1.172
}
chown -R nagios.nagios *
#添加命令,commands.cfg配置实例
vim commands.cfg
#将227到238替换为以下内容
# 'process-host-perfdata' command definition
define command{command_name    process-host-perfdatacommand_line    /usr/local/nagios/libexec/process_perfdata.pl}# 'process-service-perfdata' command definition
define command{command_name    process-service-perfdatacommand_line    /usr/local/nagios/libexec/process_perfdata.pl}在结尾添加
# 'check_nrpe' command definition
define command{command_name    check_nrpecommand_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$}# 'check_mysql' command definition
define command{command_name    check_mysqlcommand_line    $USER1$/check_mysql -H $HOSTADDRESS$ -u root -p 123456}

修改用户权限

vim /usr/local/nagios/etc/cgi.cfg
#将nagiosadmin用户替换为nagios，nagios为登录的用户，替换后才能出图
g/nagiosadmin/s//nagios/g

安装出图插件

yum install -y cairo pango zlib zlib-devel freetype freetype-devel gd gd-develtar zxvf libart_lgpl-2.3.17.tar.gz
cd libart_lgpl-2.3.17
./configure
make
make install
cp -r /usr/local/include/libart-2.0 /usr/include/
cd ..
tar zxvf rrdtool-1.2.14.tar.gz
cd rrdtool-1.2.14
./configure  --prefix=/usr/local/rrdtool --disable-python --disable-tcl
make
make install
cd ..
tar zxvf pnp-0.4.14.tar.gz
cd pnp-0.4.14
./configure --with-rrdtool=/usr/local/rrdtool/bin/rrdtool --with-perfdata-dir=/usr/local/nagios/share/perfdata/
make all
make install
make install-config
make install -init
cd ..
vim nagios.cfg
#在35行添加
cfg_file=/usr/local/nagios/etc/objects/hosts.cfg
cfg_dir=/usr/local/nagios/etc/objects/services
#注释40行左右的下面这一行
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
#修改835行，将0改为1
process_performance_data=1
#取消847、848行的注释
host_perfdata_command=process-host-perfdata
service_perfdata_command=process-service-perfdata
vim templates.cfg
#在linux-server中添加下列配置，大概在83行
process_perf_data               1
action_url                      /nagios/pnp/index.php?host=$HOSTNAME$
#在generic-service中添加下列配置，大概在179行
action_url                      /nagios/pnp/index.php?host=$HOSTNAME$&srv=$SERVICEDESC$

客户端插件安装

useradd nagios -M -s /sbin/nologin
echo 'export LC_ALL=C'>>/etc/profile
source /etc/profile
unzip nagios.zip
tar zxvf nagios-plugins-1.4.16.tar.gz
cd nagios-plugins-1.4.16
./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-perl-modules
make
make install
cd ..
tar zxvf nrpe-2.12.tar.gz
cd nrpe-2.12
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config
cd ..
tar zxvf Params-Validate-0.91.tar.gz
cd Params-Validate-0.91
perl Makefile.PL
make
make install
cd ..
tar zxvf Class-Accessor-0.31.tar.gz
cd Class-Accessor-0.31
perl Makefile.PL
make
make install
cd ..
tar zxvf Config-Tiny-2.12.tar.gz
cd Config-Tiny-2.12
perl Makefile.PL
make
make install
cd ..
tar zxvf Math-Calc-Units-1.07.tar.gz
cd Math-Calc-Units-1.07
perl Makefile.PL
make
make install
cd ..
tar zxvf Regexp-Common-2010010201.tar.gz
cd Regexp-Common-2010010201
perl Makefile.PL
make
make install
cd ..
tar zxvf Nagios-Plugin-0.34.tar.gz
cd Nagios-Plugin-0.34
perl Makefile.PL
make
make install
cd ..
yum install -y sysstat dos2unix
cp check_iostat /usr/local/nagios/libexec/
cp check_memory.pl /usr/local/nagios/libexec/
cd /usr/local/nagios/libexec/
chmod 755 check_iostat
chmod 755 check_memory.pl
dos2unix check_iostat
dos2unix check_memory.pl

配置nrpe

vim /usr/local/nagios/etc/nrpe.cfg
在第79行填写监控服务器地址
allowed_hosts=192.168.1.178
将199到203行替换为以下内容
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_mem]=/usr/local/nagios/libexec/check_memory.pl -w 10% -c 3%
command[check_disk]=/usr/local/nagios/libexec/check_disk -w 15% -c 7% -p /
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%
command[check_iostat]=/usr/local/nagios/libexec/check_iostat -w 6 -c 10

启动nrpe

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

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