nagios工作正常但maps不显示
nagios工作正常，各个监控页面也可以正常显示，唯独maps无法显示，提示The requested URL /nagios/cgi-bin/statusmap.cgi was not found on this server。进到/nagios/cgi-bin/文件夹中发现果然没有statusmap.cgi。上网查了一下，说是可能缺下面的安装包，
[*] gd
[*] gd-devel
[*] libpng
[*] libpng-devel
[*] libjpeg
[*] libjpeg-devel
[*] zlib
[*] zlib-devel
虽然不知道这些安装包到底有什么用，还是查查看到底哪个没装。
用rpm -qa | grep 命令挨个安装包查一遍，原来gd-devel没装
用yum install -y gd-devel命令安装，装好后回到nagios解压的目录执行以下命令：
#make devclean
# ./configure --with-gd-lib=/usr/lib --with-gd-inc=/usr/include
#./configure --with-command-group=nagcmd
#make all; make install; makeinstall-init; make install-config; make install-commandmode; makeinstall-webconf
完事之后重启nagios服务，ok，maps可以正常显示了！
不过突然发现监控主机少了一台，只剩下localhost了，另外一台远程主机看不到了！
是不是重新编译nagios把旧的配置文件覆盖了呢？查看nagios.cfg配置文件，
#vi /usr/local/nagios/etc/nagios.cfg
果然远程监控主机的信息没有了，添加
cfg_file=/usr/local/nagios/etc/objects/mylinux.cfg
重启nagios服务之后居然报错了，类似于这种错误
Error: Service check command 'check_nrpe!check_load' specified in service 'CPU Load' for host 'lucas_nj' not defined anywhere!
Error: Service check command 'check_nrpe!check_users' specified in service 'Current Users' for host 'lucas_nj' not defined anywhere!
Error: Service check command 'check_nrpe!check_total_procs' specified in service 'Total Processes' for host 'lucas_nj' not defined anywhere!
Error: Service check command 'check_nrpe!check_zombie_procs' specified in service 'Zombie Processes' for host 'lucas_nj' not defined anywhere!
意思说服务没定义， 难不成commands.cfg也被覆盖了？查看commands.cfg文件
#vi /usr/local/nagios/etc/objects/commands.cfg
乖乖，果然也覆盖掉了，在commands.cfg文件重新添加
define command {
command_namecheck_nrpe
command_line $USER1$/check_nrpe-H $HOSTADDRESS$ -c $ARG1$
}
重启nagios服务，工作正常。
http://s3.运维网.com/wyfs02/M02/28/7E/wKioL1N5xOXQtMCZAAIJtxZhC2Y381.jpg
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