A./etc/hosts B./etc/hosts.allow C./etc/hosts.conf D./etc/hosts.deny
A.httpd B.sendmail C.net-snmp D.nfs-utils
A.創(chuàng)建文件 securenets 并增加一行:255.255.255.0192.168.1.0 B.創(chuàng)建文件 securenets 并增加一行:192.168.1.0255.255.255.0 C.配置/etc/ypserv.conf,設(shè)置 maps 文件的訪問控制:255.255.255.0/192.168.1.0 :* :* :none D.配置/etc/ypserv.conf,設(shè)置 maps 文件的訪問控制:192.168.1.0/255.255.255.0 :* :* :none