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### 版本：centreon-2.3.9.tar.gz
下载地址：http://www.centreon.com/Content-Download/donwload-centreon
安装参考文档：（1）http://documentation.centreon.com/01-centreon/centreon_web/documentation/01-setup/installation_from_sources/step_05_-_centreon
（2）http://blog.sina.com.cn/s/blog_5611597901016qd2.html
# tar zxvf centreon-2.3.9.tar.gz
# cd centreon-2.3.9
# ./install.sh -i //以下是安装过程中需要根据实际路径修改的地方，其他均为y 回车（当然你也可以自己定制）
Where is your NDO ndomod binary ?
default to [/usr/sbin/ndomod.o]
> /usr/local/nagios/bin/ndomod.o
/usr/local/nagios/bin/ndomod.o OK
(1)以下服务均已启动
# /etc/init.d/apache2 start
# /etc/init.d/mysqld start
# /etc/init.d/ndo2db start
# /etc/init.d/nagios start
(2)开始安装：http://192.168.113.5/centreon/
### 备注参考内容：
http://documentation.centreon.com/01-centreon/centreon_web/documentation/01-setup/installation_from_sources/step_05_-_centreon
http://blog.sina.com.cn/s/blog_5611597901016qd2.html
### 部分配图：其他基本next
图示1：mysql root密码填写，三个新库密码设置
图示2：配置centreon管理员用户、密码、其他三项自定义
Centreon安装时，其他应用在线安装的，需要修改以下可能出现的路径问题：
Where is installed Nagios ?
default to [/usr/local/nagios]
> /usr/share/nagios3/
Path /usr/share/nagios3/ OK
Where is your nagios config directory
default to [/usr/local/nagios/etc]
> /etc/nagios3
Path /etc/nagios3 OK
Where is your Nagios var directory ?
default to [/usr/local/nagios/var]
> /var/log/nagios3/
Path /var/log/nagios3/ OK
Where is your Nagios plugins (libexec) directory ?
default to [/usr/local/nagios/libexec]
> /usr/lib64/nagios/plugins
Path /usr/lib64/nagios/plugins OK
/usr/sbin/nagios3 OK
Where is your Nagios p_w_picpath directory ?
default to [/usr/local/nagios/share/p_w_picpaths/logos]
> /usr/share/nagios3/htdocs/p_w_picpaths/logos/
Path /usr/share/nagios3/htdocs/p_w_picpaths/logos/ OK
Where is your NDO ndomod binary ?
default to [/usr/sbin/ndomod.o]
> /usr/lib/ndoutils/ndomod-mysql-3x.o
/usr/lib/ndoutils/ndomod-mysql-3x.o OK
### 参考链接：http://www.xodino.it/?page_id=968
Finalize Centreon configuration:
Open in webrowser: "http://<yourserverip>/centreon/", replace "<yourserverip>" with your Centreon server ip address or hostname.
Go to: Configuration -> Nagios -> cgi (in sidebar), Press on "CGI.cfg" link
Change settings to some options, as writed below:
- Physical HTML Path: /usr/share/nagios3/htdocs
- URL HTML Path : /nagios3
- Nagios Process Check Command: /usr/lib/nagios/plugins/check_nagios /var/cache/nagios3/status.dat 5 '/usr/sbin/nagios3'
Press Save
Go to: Configuration -> Nagios -> nagios.cfg (in sidebar), Press on "Nagios CFG 1" link, you should be in "Files" section of the configuration screen.
Make sure to set folowing configuration values:
- Log File : /var/log/nagios3/nagios.log
- Downtime File : /var/lib/nagios3/downtime.dat
- Comment File : /var/lib/nagios3/comment.dat
- Temp File : /var/cache/nagios3/nagios.tmp
- P1 File : /usr/lib/nagios3/p1.pl
- Lock File : /var/run/nagios3/nagios3.pid
- Object Cache File : /var/cache/nagios3/objects.cache
- Status File : /var/cache/nagios3/status.dat
- External Command File : /var/lib/nagios3/rw/nagios.cmd
Now Press on "Logs Options" tab to go to "Logs Options" section.
Make sure to set folowing configuration values:
- Log Archive Path : /var/log/nagios3/archives/
- State Retention File : /var/lib/nagios3/retention.dat
Press Save
Go to: Administration -> Options -> CentStorage (in sidebar)
Make sure to set folowing configuration values:
- Nagios current log file to parse: /var/log/nagios3/nagios.log
Press Save
Now let's apply our changes, go to: Configuration -> Nagios
Select as below:
- Generate Configuration Files
- Include Comments
- Run Nagios debug (-v)
- Move Export Files
- Restart Nagios
- Method: "External Command"
Press Export
This will restart Nagios & apply all changes you made in Web Interface.
You will do it every time you make changes, e.g. adding/modifying of hosts, commands, contacts, services...etc...
The installation of Centreon is completed.
Final fixes (very important):
Go to terminal console, then...
In Debian/Ubuntu the user "nagios" is set to "/bin/false" shell. Because of it "centcore" and "centstorage" daemons won't start. A reason for that is because those daemons use "su -c" command which requires a real shell, so the shell for
"nagios" user must be set to "/bin/sh":
# usermod -s /bin/sh nagios
Apply permissions for Web interface to be able to send "External Commands", perform the following commands to change directory permissions and to make the changes permanent:
# invoke-rc.d nagios3 stop
# dpkg-statoverride --update --add nagios www-data 2710 /var/lib/nagios3/rw
# dpkg-statoverride --update --add nagios nagios 751 /var/lib/nagios3
Add htaccess user with password "P@ssw0rd" for nagios CGI:
# htpasswd -bc /etc/nagios3/htpasswd.users nagiosadmin P@ssw0rd
Allow SNMP readonly access:
# echo "rocommunity public" > /etc/snmp/snmpd.conf
If you want to allow SNMP access only for localhost then use this instead:
# echo "rocommunity public 127.0.0.1" > /etc/snmp/snmpd.conf
# ls -al /usr/lib/nagios/plugins //查看权限，需要具有sudo权限
# cd /usr/lib/nagios/
# chmod -R u+s plugins //权限修改成 ：-rwsr-xr-x
### 不修改权限会报：Warning: This plugin must be either run as root or setuid root.
Now, restart the server
# reboot
# /etc/init.d/nagios3 reload
# /etc/init.d/centcore restart or start
# /etc/init.d/centstorage restart or start
# /etc/init.d/ndoutils restart
# /etc/init.d/nagios-nrpe-server restart
（1）配置监控主机
（2）定义主机服务
Go to: Configuration -> Serivces -> Add -> Services by host
Add---关系（Relations）保存后生效，然后激活配置
（1）定义check_nrpe命令
命令名：check_nrpe
命令行：$USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
Go to: Configuration -> Commands -> Checks -> Add -> Services by host
（2）nrpe常用模版修改
# vim /etc/nagios/nrpe.cfg
# The following examples use hardcoded command arguments...
command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10
command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
#command[check_hda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
command[check_disk]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /
command[check_zombie_procs]=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200
（3）添加check_load
Go to: Configuration -> Services -> Templates -> Add -> Save
（3）关联模版
因为 Centreon-Server继承的是generic-host主机模板，所以我们在generic-host模板里将刚才的服务模板都关联上
Go to: Configuration -> HOsts -> Templates -> generic-host –> Relations
Go to: Configuration -> HOsts -> Centreon-Server
再次查看Centreon-Serve服务，已经生成 //若没有以下状态，可以重启nagios-nrpe-server 或ndoutils 服务
Go to: Monitoring -> Services -> All Serveices
# apt-get install build-essential
# groupadd nagios # useradd –g nagios nagios
# tar zxvf nagios-plugins-1.4.16.tar.gz
# cd nagios-plugins-1.4.16/
# ./configure
# make && make install
# chown nagios.nagios /usr/local/nagios
# chown -R nagios.nagios /usr/local/nagios/libexec
# apt-get install libssl-dev
# tar zxvf nrpe-2.13.tar.gz //以下为源码安装
# cd nrpe-2.13
# ./configure
# make all
# make install-plugin
# make install-daemon
# make install-daemon-config
# vim /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1,192.168.113.5
# The following examples use hardcoded command arguments...
command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10
command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
#command[check_hda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
command[check_desk]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /
command[check_zombie_procs]=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200
# cp init-script.debian /etc/init.d/nrpe
# chmod +x /etc/init.d/nrpe # /etc/init.d/nrpe start
# netstat -antup |grep 5666
# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 //在线安装路径
# /usr/lib/nagios/plugins/check_nrpe -H 192.168.113.6 //在监控服务器上
（1）Go to: Configuration -> HOsts -> Templates ->Servers-Linux –> Relations -> Save
（2）Go to: Configuration -> HOsts -> Add –> Save
（1）报错解决：
Error: Could not create external command file '/var/log/nagios3/rw/nagios.cmd'
解决：mkdir /var/log/nagios3/rw
Chown nagios.nagios rw
（2）在线安装ndoutils，启动ndo2前一定要修改：/etc/default/ndoutils
ENABLE_NDOUTILS=1
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