topic #7 客户端网络验证 :

18) 以下哪个不是常用的验证模式?
nis
ldap
autofs

19) 以下哪个是配置网络验证模式的工具?
systemauth
userconfig
authconfig

20) nisdomain变量在哪里设置和保存?
/etc/sysconfig/network
/etc/sysconfig/network-scripts/ifcfg-interface, where interface is an interface name, such as eth0. /etc/sysconfig/network-scripts/ifcfg-interface, interface类似于 eth0 等.
/var/yp/securenets