00002.新装linux配置telnet

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博客介绍新装Linux后配置Telnet的方法，需设置/etc/seceretty、/etc/hosts.allow和/etc/deny三个文件，并展示了这些文件的部分内容，如seceretty文件定义root可登录的设备，hosts.allow和hosts.deny分别规定允许和不允许使用本地INET服务的主机。

新装linux后配置telnet:
要设置/etc/seceretty，/etc/hosts.allow和/etc/deny三个文件.

# more securetty
# This file defines which devices root can log in on.
# These are the ttys on the physical console:
console
tty1
tty2
tty3
tty4
tty5
tty6
# These are some remote ttys, and uncommenting them might be less than fully secure:
#ttyS0
#ttyS1
#ttyS2
#ttyS3
#ttyp0
#ttyp1
#ttyp2
#ttyp3
#ttyp4
#ttyp5
#ttyp6
#ttyp7
pts/0
pts/1
pts/2
pts/3
#pts/4
#pts/5
#pts/6
#pts/7
root@test:/etc # more 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.
# Version:      @(#)/etc/hosts.allow    1.00    05/28/93
ALL:ALL
# End of hosts.allow.
root@test:/etc # more 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.
# Version:      @(#)/etc/hosts.deny     1.00    05/28/93
# Author:       Fred N. van Kempen, < waltje@uwalt.nl.mugnet.org
# End of hosts.deny.