需求套件
apache
php
gcc
gd
安裝需求套件
yum install httpd php gcc glibc glibc-common gd gd-devel
新增使用者
useradd -c nagios -d /usr/local/nagios -s /bin/bash nagios -m
groupadd nagcmd
/usr/sbin/usermod -a -G nagcmd nagios
/usr/sbin/usermod -a -G nagcmd apache
下載 nagios 3 套件
解開編譯 nagios 3
tar zxvf nagios-3.2.3.tar.gz
cd nagios-3.2.3
./configure –prefix=/usr/local/nagios –with-command-group=nagcmd
make all
make install
make install-init
make install-config
make install-commandmode
make install-webconf
說明:
make install
– This installs the main program, CGIs, and HTML filesmake install-init
– This installs the init script in /etc/rc.d/init.dmake install-commandmode
– This installs and configures permissions on the
directory for holding the external command filemake install-config
– This installs *SAMPLE* config files in /usr/local/nagios/etc
You’ll have to modify these sample files before you can
use Nagios. Read the HTML documentation for more info
on doing this. Pay particular attention to the docs on
object configuration files, as they determine what/how
things get monitored!make install-webconf
– This installs the Apache config file for the Nagios
web interface
問題: check_http.o check_http.c undefined reference to np_net_ssl_cleanup
解決: make clean 後重新 ./configure
安裝 nagios conf for apache
make install-webconf
或
cp -rp sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
新增網頁存取使用者
htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
安裝 nagios plugins
tar zxvf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15
./configure –prefix=/usr/local/nagios –with-nagios-user=nagios –with-nagios-group=nagios
make
make install
確認 conf 是否正確
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
啟動apache及nagios
service nagios start
service httpd start
設成開機啟動
chkconfig nagios on
chkconfig httpd on
問題: 支持uTF-8 的方法
解決: http://blogold.chinaunix.net/u/12479/showart_695760.html
如果使用nagios-plugin check_http检测url，页面utf-8中文，一旦报警，在nagios的页面出现的关键字将会是乱码，需要修改nagios的cgi程序
路径在源代码/cgi
在所有c源代码中查找着两行，如果有就在这两行下面增加：printf(“<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
“);
printf(“<html>
“);
printf(“<head>
“);
問題: 當nagios.log 一直出現 “Max concurrent service checks (55) has been reached” 這類的訊息
解決: 需要調高 max_concurrent_checks 的數值，且也要搭配，管理介面的 “Check Latency / Duration: 0.231 / 5.201 seconds” 數據，別讓數值 > 10 or 15 seconds
最後
把原本已監控的主機的 cfg檔複製到新nagios3的/usr/local/nagios/etc/目錄底下 (cfg我是用dir的方式分類)
nagios.cfg舊的也不複製了
可能需要比對的新舊設定
cgi.cfg
physical_html_path= # 就看你的nagios網頁是放在那裡
url_html_path=/ # 預設的當然會是 /nagios，除非我是瀏覽 nagios.ssorc.tw/ 就要改成 /
resource.cfg
$USER1$= # 有可能會變，否則照預設的吧
nagios.cfg
date_format=iso8601 # 日期還是這個比較習慣
max_concurrent_checks= # nagios 3版預設是無限的，但看server機器的等級作調整吧
問題: check_http 1.4.5 會對某些主機監控時抓不到該有的 string
解決: 所以我換回 1.4.2版的
留言