如下:
# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost.localdomain localhost4 localhost4.localdomain4 localhost Appsrv63
::1 localhost.localdomain localhost.localdomain localhost6 localhost6.localdomain6 localhost Appsrv63
10.100.0.246 websrv659 #zabbix agent 的IP 和 HOSTNAME