用Nagios來監控網絡服務器-nagios安裝
Nagios的安裝過程(FreeBSD)
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nagios的安裝比較簡單，復雜的是設置和配置參數的設定。不過你要放松一點，畢竟我們要搞定它，不是嗎?那就開始吧：
1：獲得最新的安裝包，http://www.nagios.org/download
2：以root身份登錄服務器，目前最新的版本是2.5：
1)nagios，版本2.5：
fetch http://superb-west.dl.sourceforge.net/sourceforge/nagios/nagios-2.5.tar.gz
or
wget http://superb-west.dl.sourceforge.net/sourceforge/nagios/nagios-2.5.tar.gz
2)獲得nagios插件，版本1.4.3：
http://surfnet.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.3.tar.gz
3)獲得圖庫文件：
http://dl.sf.net/nagios/imagepak-base.tar.gz
4)NRPE，版本2.5.2
http://ufpr.dl.sourceforge.net/sourceforge/nagios/nrpe-2.5.2.tar.gz
5)NSCA，版本2.6
http://kent.dl.sourceforge.net/sourceforge/nagios/nsca-2.6.tar.gz
3：切換到root用戶：
- sudo su
4：解壓縮
- tar zxvf nagios-2.5.tar.gz
5：建立運行nagios的用戶：
- adduser nagios
6：建立安裝nagios的文件夾，并使這個文件夾的所有者為nagios:nagios
- mkdir /usr/local/nagios
- chown nagios.nagios /usr/local/nagios
7：確認web服務器的用戶
可能會通過web接口執行一些命令，必須確定web服務器以哪個用戶運行的，通常為：apache：
- grep "^User" /usr/local/apache2/conf/httpd.conf
8：建立命令文件組
這個新的組會包括apache的用戶和nagios的用戶
- pw groupadd nagcmd
- pw usermod apache -G nagcmd
- pw usermod nagios -G nagcmd
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- cat /etc/group
- nagcmd:*:9007:apache,nagios
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8：運行配置腳本并安裝nagios
- cd nagios-2.5
- ./configure --prefix=/usr/local/nagios --with-gd-lib=/usr/local/lib --with-gd-inc=/usr/local/include
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- *** Configuration summary for nagios 2.5 07-13-2006 ***:
- General Options:
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- Nagios executable: nagios
- Nagios user/group: nagios,nagios
- Command user/group: nagios,nagios
- Embedded Perl: no
- Event Broker: yes
- Install ${prefix}: /usr/local/nagios
- Lock file: ${prefix}/var/nagios.lock
- Init directory: /usr/local/etc/rc.d
- Host OS: freebsd6.0
- Web Interface Options:
------------------------
- HTML URL: http://localhost/nagios/
- CGI URL: http://localhost/nagios/cgi-bin/
- Traceroute (used by WAP): /usr/sbin/traceroute
- Review the options above for accuracy. If they look okay,
- type 'make all' to compile the main program and cgis.
---------------------------------
- make all
- make install
- make install-init
- make install-commandmode
- make install-config
9：安裝nagios-plugins
- tar zxvf nagios-plugins-1.4.3.tar.gz
- cd nagios-plugins-1.4.3
- ./configure --prefix=/usr/local/nagios-plugins
- make all
- make install
安裝完成以后在/usr/local/nagios-plugins-plugins會產生一個libexec的目錄，將該目錄全部移動到/usr/local/nagios目錄下即可。
- mv /usr/local/nagios-plugins-plugins/libexec/ /usr/local/nagios/
10：imagepak-base.tar.gz的安裝
- tar –xvzf imagepak-base.tar.gz
解壓以后是base目錄
mv base/ /usr/local/nagios/share/images/logos/
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