一、nagios除了管理员用户登录来管理往往是不够的，我们公司有广东、江西、北京等地的业务，甚至内部人员也需要来查看（只读）监控的项目或者告警信息。
So...
二、先备份我们需要修改的两个文件
[[email protected] nagios]#cp /etc/nagios/htpasswd.users /etc/nagios/htpasswd.users.20150126bak
[[email protected] nagios]#cp /etc/nagios/cgi.cfg /etc/nagios/cgi.cfg.20150126bak
三、创建用户，创建用户的时候不要加-c，否则会覆盖该文件原有数据，xh是用户名。输入密码确定即可
[[email protected] nagios]#htpasswd /etc/nagios/htpasswd.users xh
New password:
Re-type new password:
Updating password for user xh
查看文件，创建用户成功，没有覆盖之前的用户
[[email protected] nagios]# cat htpasswd.users
nagiosadmin:TxLl3Z4Hu/rgM
jxoperator:StFLcNbUYm8JQ
bjoperator:mIIZ6TKa85iyo
xh:HyPcV1ozVpCNg
四、赋予权限，只读。经过测试，修改下面5行即可
[[email protected] nagios]#vi /etc/nagios/cgi.cfg
authorized_for_read_only=jxoperator,bjoperator,xh
authorized_for_all_services=nagiosadmin,xh
authorized_for_all_hosts=nagiosadmin,xh
authorized_for_all_service_commands=nagiosadmin,xh
authorized_for_all_host_commands=nagiosadmin,xh
五、重启服务，使配置生效
/etc/init.d/httpd restart
/etc/init.d/nagios restart