nagios是目前非常流行的系统,服务器监控免费软件,很多大的国内站点像搜狐,网易都在使用nagios进行服务器监控。 nagios的有点在于他本身只是一个框架,对于nagios扩展监控模块,以及报警模块非常方便,能很方便的加入自己编写的服务监控,以及手机短信,邮件,gtalk ,msn报警等等。 以下是nagios在linux REDHAT AS4U4 下的安装和简单的配置过程: 下载软件: wget http://surfnet.dl.sourceforge.net/sourceforge/nagios/nagios-3.0.3.tar.gz wget http://nchc.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.12.tar.gz wget http://nchc.dl.sourceforge.net/sourceforge/nagiosplug/nagiosmib-1.0.0.tar.gz 添加用户: useradd -m nagios passwd nagios groupadd nagcmd usermod -G nagcmd nagios usermod -G nagcmd daemon 编译安装nagios tar -xvzf nagios-3.0.3.tar.gz cd nagios-3.0.3 ./configure --with-command-group=nagcmd make all make install make install-init make install-config make install-commandmode 设置apache服务器访问密码: cd /usr/local/nagios/etc/ /usr/local/apache/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin cd /usr/local/apache/conf/ vi httpd-vhosts.conf 配置apache的cgi ,具体配置如下: ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin Options ExecCGI AllowOverride None Order allow,deny Allow from all AuthName "Nagios Access" AuthType Basic AuthUserFile /usr/local/nagios/etc/htpasswd.users Require valid-user Alias /nagios /usr/local/nagios/share Options None AllowOverride None Order allow,deny Allow from all AuthName "Nagios Access" AuthType Basic AuthUserFile /usr/local/nagios/etc/htpasswd.users Require valid-user 重启apache /usr/local/apache/bin/apachectl configtest /usr/local/apache/bin/apachectl stop /usr/local/apache/bin/apachectl start 安装nagios插件 tar -xvzf nagios-plugins-1.4.12.tar.gz cd nagios-plugins-1.4.12 ./configure --with-nagios-user=nagios --with-nagios-group=nagios make make install chkconfig --add nagios chkconfig nagios on /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg service nagios start 现在你可以通过浏览器访问监控的界面了, http://www.example.com/nagios 现在你仅仅能看到对于本机的监控,接下来我们添加一个http服务的监控 cd /usr/local/nagios/ vi nagios.cfg 添加一行: cfg_file=/usr/local/nagios/etc/objects/wwws.cfg 编写配置wwws.cfg touch objects/hosts.cfg objects/wwws.cfg vi objects/wwws.cfg 具体内容如下: define host{ use generic-host host_name maycode alias www.maycode.com address 10.11.24.42 hostgroups webhosts max_check_attempts 10 } define hostgroup{ hostgroup_name webhosts alias web service hosts members maycode } define service{ use generic-service host_name maycode service_description HTTP check_command check_http! -H www.maycode.com } 请根据具体情况修改为你要监控的主机以及域名,现在来看看你的配置文件是否正确: /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg 如果争取,请重启nagios服务器 service nagios start 接下来请去浏览器看看吧,如果在host部分看到pending别奇怪啊,我们只设置了监控www服务器,如果你需要监控alive ,请参考localhost.cfg配置文件。 在libexec目录下,所有的监控脚本和应用都在,你可以用 prog -h ,查看如何使用这些监控脚本和程序。如果你自己写的程序最好也放在这个目录下。 |
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