[root@tp etc]# vi /etc/hosts.deny
#
# hosts.deny This file describes the names of the hosts which are
# *not* allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
# The portmap line is redundant, but it is left to remind you that
# the new secure portmap uses hosts.deny and hosts.allow. In particular
# you should know that NFS uses portmap!
"ALL:ALL"
把允许访问的客户,或服务添加到/etc/hosts.allow,冒号左边为服务,冒号右边为授权的机器
[root@tp etc]# vi /etc/hosts.allow
#
# hosts.allow This file describes the names of the hosts which are
# allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
vsftp:211.101.46.253 注:仅如许IP地址为211.101.46.253的机器访问FIP服务器
7．删减登录信息
[root@tp ~]# rm -f /etc/issue
[root@tp ~]# rm -f /etc/issue.net
[root@tp ~]# touch /etc/issue
[root@tp ~]# touch /etc/issue.net