Ossec 的manage_agents命令默认去 /var/ossec 目录下找主机列表文件，
[root@ossecserver ossec]# pwd
/var/ossec
我们编辑一个需要添加的agent主机的列表，格式如下：
[root@ossecserver ossec]# more addhosts
192.168.1.87,bluehost87
192.168.1.88,bluehost88
192.168.1.89,bluehost89
执行批量添加命令：
[root@ossecserver ossec]# /var/ossec/bin/manage_agents -f /addhosts
Bulk load file: /addhosts
Opening: [/addhosts]
Agent information:
ID:004
Name:bluehost87
IP Address:192.168.1.87
Agent added.
Agent information:
ID:005
Name:bluehost88
IP Address:192.168.1.88
Agent added.
Agent information:
ID:006
Name:bluehost89
IP Address:192.168.1.89
Agent added.