完整安装nagios邮件报警.docx

完整安装nagios+cacti+短信和邮件报警 一：安装nagios中用到的其他软件和库文件 yum -y install httpd gcc glibc glibc-common gd gd-devel php php-mysql mysql mysql-server mysql-devel openssl-devel 二：安装和配置nagios3.4.1监控主程序 2.1建立用户和组groupadd nagcmduseradd m nagiosusermod -a -G nagcmd nagiosusermod -a -G nagcmd apache2.2下载最新版nagios3.4.1mkdir downloadswget /sourceforge/nagios/nagios-3.4.1.tar.gz2.3 编译安装cd downloadstar zxvf nagios-3.4.1.tar.gzcd nagios默认安装至/usr/local/nagios/./configure -with-command-group=nagcmd -enable-event-brokermake all & make install & make install-init & make install-config & make install-commandmode & make install-webconfWEB界面的用户名和密码htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin输入密码并确认service httpd restartchkconfig httpd on三：编译安装nagios-plugins-下载最新版本nagios-plugins-1.4.16cd downloadswget /sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gzcd nagios-plugins-1.4.16./configure -with-nagios-user=nagios -with-nagios-group=nagcmd -with-mysqlmake & make installchkconfig -add nagioschkconfig nagios onvim /etc/profile加入PATH=$PATH:/usr/local/nagios/bin检查nagios语法是否正确nagios -v /usr/local/nagios/etc/nagios.cfgservice nagios start3.2 关闭selinux 及修改iptables或关闭iptables关闭selinux的方法 vi /etc/sysconfig/selinux添加 SELINUX=disabled iptables建议开启，然后允许需要开启的端口，一般nagios需要的端口是80和5666（nrpe） vi /etc/sysconfig/iptables service httpd restart 此时已经能从浏览器访问http:/*/nagios 默认用户名nagiosadmin 密码是之前输入过的。 四：监控nagios本机创建fund123目录，用于存放所有相关配置文件cd /usr/local/nagios/etc/mkdir fund123cd /usr/local/nagios/etc/objectscp -v -R * /usr/local/nagios/etc/fund123/文件和目录修改下权限chown -R nagios:nagios fund123修改主配置文件nagios.cfg，修改之前最好先备份下vi /usr/local/nagios/etc/nagios.cfg修改成cfg_file=/usr/local/nagios/etc/fund123/commands.cfgcfg_file=/usr/local/nagios/etc/fund123/contacts.cfgcfg_file=/usr/local/nagios/etc/fund123/timeperiods.cfgcfg_file=/usr/local/nagios/etc/fund123/templates.cfgcfg_file=/usr/local/nagios/etc/fund123/contactgroups.cfgcfg_file=/usr/local/nagios/etc/fund123/hostgroups.cfgcfg_file=/usr/local/nagios/etc/fund123/servicegroups.cfgcfg_dir=/usr/local/nagios/etc/fund123/servers/cfg_dir=/usr/local/nagios/etc/fund123/services/注释掉#cfg_file=/usr/local/nagios/etc/objects/localhost.cfgcp objects/localhost.cfg fund123/servers/local-nagios.cfgvi local-nagios.cfg# Define a host for the local machinedefine host use linux-server ; Name of host template to use ; This host definition will inherit all variablesthat are defined ; in (or inherited by) the linux-server host template definition. host_name local-nagios alias nagios+cacti address 注释掉组的定义，后续会在hostgroups里定义#define hostgroup# hostgroup_name linux-servers ; The name of the hostgroup# alias Linux Servers ; Long name of the group# members localhost ; Comma separated list of hosts that belong to this group# 通过PING检测主机是否存活define service use local-service ; Name of service template to use host_name local-nagios service_description PING check_command check_ping!100.0,20%!500.0,60% # Define a service to check the disk space of the root partition# on the local machine. Warning if 20% free, critical if# 20 users, critical# if 50 users.define service use local-service ; Name of service template to use host_name local-nagios service_description Current Users check_command check_local_users!20!50 # Define a service to check the number of currently running procs# on the local machine. Warning if 250 processes, critical if# 400 users.define service use local-service ; Name of service template to use host_name local-nagios service_description Total Processes check_command check_local_procs!250!400!RSZDT # Define a service to check the load on the local machine.define service use local-service ; Name of service template to use host_name local-nagios service_description Current Load check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0 # Define a service to check the swap usage the local machine.# Critical if less than 10% of swap is free, warning if less than 20% is freedefine service use local-service ; Name of service template to use host_name local-nagios service_description Swap Usage check_command check_local_swap!20!10 # Define a service to check SSH on the local machine.# Disable notifications for this service by default, as not all users may have SSH enabled.define service use local-service ; Name of service template to use host_name local-nagios service_description SSH check_command check_ssh notifications_enabled 0 # Define a service to check HTTP on the local machine.# Disable notifications for this service by default, as not all users may have HTTP enabled.define service use local-service ; Name of service template to use host_name local-nagios service_description HTTP check_command check_http notifications_enabled 0 wq保存退出定义主机组文件/usr/local/nagios/etc/fund123/hostgroups.cfgvi /usr/local/nagios/etc/fund123/hostgroups.cfg# Nagios Servers Groupdefine hostgroup hostgroup_name NagiosMonitor ;定义的组名，我这里定义的是Nagios监控的所有主机成员，以后有新的主机监控进来都会在这个组里显示 alias Monitor all servers ;别名 members * ;主机组的成员主机，星号代表所有主机，有多个组成员可以用逗号隔开 # Linux System Groupdefine hostgroup hostgroup_name Linux-System ;定义的主机组名称，我这里定义的是Linux系统组 alias linux system members local-nagios ;这里的组成员是local-nagios.cfg定义的“host_name”这个的值 # Windows System Group#define hostgroup# hostgroup_name Windows-System ;这里我定义的是Windows系统组，现在还没有主机成员，所以先注释掉，等有成员机了再添加进来# alias windows system# members # 定义服务组文件/usr/local/nagios/etc/fund123/servicegroups.cfgvi /usr/local/nagios/etc/fund123/servicegroups.cfg# Define an servicegroup for Pingdefine servicegroup servicegroup_name Network alias network connetivity members local-nagios,PING ; 组成员的设置，主机名，服务名的方式表示，中间用逗号分隔 定义联系人组文件/usr/local/nagios/etc/fund123/contactgroups.cfgvi /usr/local/nagios/etc/fund123/contactgroups.cfg#contact groupdefine contactgroup contactgroup_name sagroup ;定义联系人组的名字 alias Nagios Adminstrators ;别名 members nagiosadmin ;联系人组成员保险起见再赋予下fund123 文件权限chown -R nagios:nagios fund123检查配置是否有误cd /usr/local/nagios/bin/nagios -v ./etc/nagios.cfg重启nagios 重启http/etc/init.d/nagios reloadservice httpd restartservice nagios restart五nagios监控windows客户端1下载nscilent+最新版本NSCP-83-x64.msi，网址是/nscp/downloads2安装NSCP-83-x64.msi选择第一个这里第一项填nagios服务器的地址，第二项密码不用填，其余都勾上。3，安装完毕后修改系统服务登陆允许服务与桌面交互。4，配置nagios主控端，增加对2这台机器的监控。cp /usr/local/nagios/etc/fund123/windows.cfg /usr/local/nagios/etc/fund123/servers/20.12.cfgvi 20.12.cfgdefine host use windows-server ; Inherit default values from a template host_name XS-20.12 ; The name were giving to this host alias XS-20.12 ; A longer name associated with the host address 2 ; IP address of the host #define hostgroup# hostgroup_name windows-servers ; The name of the hostgroup# alias Windows Servers ; Long name of the group# 这里注释掉hostgroup的定义，因为我们都统一在hostgroup文件去定义。其余都采用默认，注意把host name这项的内容都改成XS-20.12。注意：这里的继承模板“windows-server”中有定义hostgroup，所以要到templates.cfg中注释掉，不然验证配置文件时会报错。/usr/local/nagios/etc/fund123rootnagios230 fund123# vi templates.cfg# hostgroups windows-servers ;配置修改完成后都需要验证下配置是否正确，然后重启nagios和apachecd /usr/local/nagios/bin/nagios -v ./etc/nagios.cfg/etc/init.d/nagios reloadservice httpd restartservice nagios restart至此windows监控已完毕。六配置sendemail 来发送nagios报警信息下载sendemail程序cd downloads/wget /menu/Software/SendEmail/sendEmail-v1.56.tar.gztar -zxvf sendEmail-v1.56.tar.gz & cd sendEmail-v1.56cp sendEmail /usr/local/binchmod 0755 /usr/local/bin/sendEmail2测试发送邮件用nagios1的邮箱给weihj发一封邮件主题是nagios测试，内容是nagios test 测试sendEmail -f t -s -xu -xp -u nagios测试 -m nagios test 测试默认可能无法显示中文，可以做如下修改sendEmail -f -t -s -xu -xp -u nagios测试 -m nagios test 测试 -o message-content-type=html -o message-charset=utf8这样说明已经能发送邮件了，接下来就是配置到nagios里即可。3配置comand.cfg中的邮件通知cd /usr/local/nagios/etc/fund123/vi command.cfgdefine command command_name notify-host-by-email command_line /usr/bin/printf %b * 详细信息如下 *nNotification Type: $NOTIFICATIONTYPE$nHost: $HOSTNAME$nState: $HOSTSTATE$nAddress: $HOSTADDRESS$nInfo: $HOSTOUTPUT$nnDate/Time: $LONGDATETIME$n | /usr/local/bin/sendEmail -f -t $CONTACTEMAIL$ -s -u * $HOSTALIAS$ is $HOSTSTATE$ * -xu -xp # -o message-charset=utf8define command command_name notify-service-by-email command_line /usr/bin/printf %b * 详细信息如下 *nNotification Type: $NOTIFICATIONTYPE$nService: $SERVICEDESC$nHost: $HOSTALIAS$nAddress: $HOSTADDRESS$nState: $SERVICESTATE$nnDate/Time: $LONGDATETIME$nnAdditional Info:n$SERVICEOUTPUT$n | /usr/local/bin/sendEmail -f -t $CONTACTEMAIL$ -s -u * $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ * -xu -xp # -o message-charset=utf8define command command_name notify-host-by-email command_line /usr/bin/printf %b * 详细信息如下 *nNotification Type: $NOTIFICATIONTYPE$nHost: $HOSTNAME$nState: $HOSTSTATE$nAddress: $HOSTADDRESS$nInfo: $HOSTOUTPUT$nnDate/Time: $LONGDATETIME$n | /usr/local/bin/sendEmail -f -t $CONTACTEMAIL$ -s -u * $HOSTALIAS$ is $HOSTSTATE$ * -xu -xp -o message-charset=utf8监控linux客户端：1、服务端安装nrpe 确认安装了apache，gcc，glibc，gd库#tar zxvf NRPE-2.13.tar.gz#cd nrpe-2.13.1#./configure -enable-ssl -with-ssl-lib=/lib/前提是安装了openssl与openssl-devel#rpm -qa | grep ssl 保证：能够抓到 前两个openssl-0.9.8e-12.el5openssl-devel-0.9.8e-12.el5openssl-perl-0.9.8e-12.el5#make all#make install-plugin2、vim 编辑commands.cfg文件定义nrpe对的使用#vim /usr/local/nagios/etc/fund123/commands.cfg/添加如下几行使支持check_nrep#check_nrepdefine command command_name check_nrpe command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ 3、新建linux.cfg设置要监控的内容cp /usr/local/nagios/etc/fund123/servers/local-nagios.cfg /usr/local/nagios/etc/fund123/redhat.cfg#vim /usr/local/nagios/etc/fund123/servers/redhat.cfgdefine hostuse linux-serverhost_name redhat /需要修改工作站的主机名 alias mylinuxaddress 4 /工作站主机IP define serviceusegeneric-servicehost_nameredhatservice_descriptioncheck-swap /对下面操作的描述check_commandcheck_nrpe!check_swap/执行检测交换分区命令，监控swap define serviceusegeneric-service host_nameredhatservice_descriptioncheck-loadcheck_commandcheck_nrpe!check_load /监控负载 define service usegeneric-service host_name redhatservice_descriptioncheck-diskcheck_commandcheck_nrpe!check_had1 /监控硬盘 define serviceuse generic-servicehost_nameredhat service_description check-userscheck_command check_nrpe!check_users/监控用户（使用）情况 define service use generic-servicehost_name redhatservice_description otal_procs check_command check_nrpe!check_total_procs/监控进程 /对以上的redhat.cfg文件编辑如果有错，将会导致nagios无法启动；/修改工作站主机的主机名为redhat，保证能够#ping redhat 通信正常，可以选择#echo 4 redhat /etc/hosts#echo 30 nagios /etc/hosts/在服务器端#echo 30nagios /etc/hosts#echo 4redhat/etc/hosts检查nagios的配置文件的正确性#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg/如果上面有错误，请检查系统服务时间是否同步，新建的redhat.cfg是否有语法错误！/在commands.cfg是否添加对nrep使用等#service nagios start 重启nagios服务3、配置工作站上的nagios-plugin/nrpe等1、安装nagios-plugin#useradd nagios#passwd nagios#tar -zxvf nagios-plugins-1.4.16.tar.gz#cd nagios-plugins-1.