Debian系统Nagios+Centreon+Nrpe集成

jonvi

　　Debian 系统 Nagios+Centreon+Nrpe集成

1、软件包信息

操作系统	debian-6.0.5-amd64-DVD-1
Centreon	centreon-2.3.9.tar.gz
Nagios	nagios-3.4.1.tar.gz	源码安装
Nagios插件	nagios-plugins-1.4.16.tar.gz
Ndoutils	ndoutils-1.5.2.tar.gz
Nrpe	nrpe-2.13.tar.gz
MySQL	mysql-5.5.15.tar.gz

2、服务端在线安装内容

Program groups	Command
System base	apt-get install sudo tofrodos bsd-mailx   lsb-release heirloom-mailx build-essential
Database server	apt-get install mysql-server libmysqlclient16 libmysqlclient-dev   libmysql++-dev ###备注：这是在线安装内容，红色字体内容是源码安装mysql5.5.15后也需要安装的内容
WebServer and PHP5	apt-get install apache2 apache2-mpm-prefork php5 php5-mysql php-pear php5-ldap php5-snmp php5-gd
RRDTools	apt-get install rrdtool librrds-perl ### 备注：安装后路径：/usr/bin/rrdtool
Perl modules	apt-get install libconfig-inifiles-perl libcrypt-des-perl   libdigest-hmac-perl libdigest-sha1-perl libgd-gd2-perl
SNMP	apt-get install snmp snmpd libnet-snmp-perl libsnmp-perl
GD-libraries and othes pack	apt-get install libgd2-xpm libgd2-xpm-dev   libpng12-dev fping libmcrypt4 libldap2-dev libgnutls-dev libssl-dev smbclient   libpq-dev libradiusclient-ng-dev dbi-link

3、服务端集成应用

3.1 Mysql


源码安装省略……
# insserv mysqld   //创建自启动
# insserv -d mysqld
# mysqladmin -u root password '111111'   //修改root密码
3.2 Ngigos

3.2.1安装

### 版本：nagios-3.4.1.tar.gz  

下载地址：http://www.nagios.org/download/
          http://sourceforge.net/projects/nagios/files/
# apt-get install nagios3  //在线安装
# /usr/sbin/useradd -m nagios     //以下是源码安装
# /usr/sbin/groupadd nagcmd
# /usr/sbin/usermod -G nagios,nagcmd www-data
# tar zxvf nagios-3.4.1.tar.gz
# cd nagios/
# ./configure --prefix=/usr/local/nagios --with-command-group=nagcmd --enable-nanosleep --enable-event-broker
# make all
# make install
# make install-init
# make install-commandmode
# make install-config
# make install-webconf
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nadmin
# htpasswd -c /etc/nagios3/htpasswd.users nadmin   //在线安装时
//创建nogios登陆用户名和密码，apache自动安装后/usr/bin/htpasswd路径
# vim /etc/rc.local   //设置nagios自启动
/etc/init.d/nagios start
3.2.2 配置

# vim /usr/local/nagios/etc/cgi.cfg
  use_authentication=0   //修给cgi权限验证问题
# vim /usr/local/nagios/etc/nagios.cfg   //待定
//验证nagios配置文件是否正确
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg -d
3.3 NgigosPlugins

### 版本：nagios-plugins-1.4.16.tar.gz
# tar zxvf nagios-plugins-1.4.16.tar.gz
# cd nagios-plugins-1.4.16
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl=/usr/bin/openssl --enable-perl-modules
# make
# make install
3.4 Nrpe

### 版本：nrpe-2.13.tar.gz

下载地址：http://sourceforge.net/projects/nagios/files/nrpe-2.x/
# apt-get install nagios-nrpe-server nagios-nrpe-plugin //在线安装
# 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
### 备注，在线安装目录：/etc/nagios/nrpe.cfg
server_address=192.168.113.5      //修改nrpe服务器IP地址
allowed_hosts=127.0.0.1,192.168.113.5  //允许访问的IP地址
//nrpe启动并测试是否启动成功，且加入/etc/rc.local使得开机自启动
# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
# netstat -antup |grep 5666
//验证客户端nrpe是否正常连接，显示：NRPE v2.13 说明服务正常
# /usr/local/nagios/libexec/check_nrpe -H 192.168.113.5
# /usr/lib/nagios/plugins/check_nrpe -H 192.168.113.5  //在线安装路径
3.5 Ndoutils

3.5.1安装

### 版本：ndoutils-1.5.2.tar.gz

下载地址：http://sourceforge.net/projects/nagios/files/ndoutils-1.x/
# apt-get install ndoutils-nagios3-mysql   //在线安装
# tar zxvf ndoutils-1.5.2.tar.gz   //以下是源码安装
# cd ndoutils-1.5.2
#./configure --prefix=/usr/local/nagios/ --enable-mysql \
--with-ndo2db-user=nagios --with-ndo2db-group=nagios \
--with-mysql-lib=/usr/local/mysql/lib/mysql \
--with-mysql-inc=/usr/local/mysql/include/mysql \
# make
# make install
# cp ./config/ndo2db.cfg-sample /usr/local/nagios/etc/ndo2db.cfg
# cp ./config/ndomod.cfg-sample /usr/local/nagios/etc/ndomod.cfg
# cp src/ndomod-3x.o /usr/local/nagios/bin/
# cp src/ndo2db-3x /usr/local/nagios/bin/
# chmod 774 /usr/local/nagios/bin/ndo*
# chown nagios:nagios /usr/local/nagios/bin/ndo*
# chown nagios:nagios /usr/local/nagios/etc/ndo*
# cp ./daemon-init.in /etc/init.d/ndo2db
# chmod +x /etc/init.d/ndo2db
# insserv ndo2db
# insserv -d ndo2db
//创建数据库且导入库内容
mysql> create database nagios;   
./installdb -u root -p 111111 -h localhost -d nagios
或者：
# cd /root/ndoutils-1.5.2/db
# mysql -uroot -p nagios select host_id,address,display_name from nagios_hosts;
+---------+-----------+--------------+
| host_id | address   | display_name |
+---------+-----------+--------------+
|       3 | 127.0.0.1 | localhost    |
+---------+-----------+--------------+
1 row in set (0.00 sec)
//在线安装启动/etc/init.d/ndoutils start前，需要编辑：
# vim /etc/default/ndoutils
ENABLE_NDOUTILS=1     //修改成 1

//问题解决：
问题（1）./installdb nagios数据库时报：
failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) at ./installdb line 41
解决：# mkdir -p /var/run/mysqld  
# ln -s /tmp/mysql.sock /var/run/mysqld/mysqld.sock
问题（2）./installdb nagios数据库时报：
DBD::mysql::db do failed: Table 'nagios.nagios_dbversion' doesn't exist at ./installdb line 51.
解决：可以忽略，核实nagios数据库59个表即可
问题（3）tail -f  nagios.log时，提示：
ndomod: Could not open data sink!或ndomod: Still unable to connect to data sink.
解决：按照以上操作，且进程ps均可见，则尝试重启ndo2db 或nagios或mysql
4、centreon集成

4.1应用程序安装

### 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

4.2 web installation

(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

   

4.3在线安装nagios后

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 image directory ?
default to [/usr/local/nagios/share/images/logos]
> /usr/share/nagios3/htdocs/images/logos/
Path /usr/share/nagios3/htdocs/images/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

4.4 Web 安装centreon完成后

### 参考链接：http://www.xodino.it/?page_id=968
Finalize Centreon configuration:
Open in webrowser: "http:///centreon/", replace "" 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

4.5 可能的报错信息

（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

### 说明，debian操作系统下安装比较麻烦，建议还是用我参考的完整系统吧呵呵！