telnet连接linux主机

归档：学习笔记

2017/8/1

telnet连接linux服务器

1.1 检查系统是否安装telnet服务

[[email protected] etc]# rpm -qa |grep telnet     rpm –qa  查看软件是否安装

telnet-server-0.17-48.el6.x86_64

1.2 没有安装使用yum安装即可

[[email protected] xinetd.d]# yum install telnet-server    安装telnet服务

1.3 检查telnet当前状态

[[email protected] etc]# chkconfig |grep telnet

telnet:         off

如果为off需要将其改为on

[[email protected] xinetd.d]# chkconfig telnet on

[[email protected] xinetd.d]# chkconfig |grep telnet

telnet:         on

1.4 重启xinetd服务

[[email protected] xinetd.d]# /etc/init.d/xinetd restart     重启xinetd服务

Stopping xinetd:                                           [FAILED]

Starting xinetd:                                           [  OK  ]

1.5 关闭防火墙

[[email protected] ~]# /etc/init.d/iptables stop     关闭防火墙

[[email protected] ~]# /etc/init.d/iptables status   检查状态

iptables: Firewall is not running.

1.6 因为linux默认不容许 root用户以telnet方式登录系统，需要改/etc/securetty

[[email protected] etc]# mv securetty securetty.bak

将securetty重命名后即可使用root来登陆

1.7 检查root是否可以用telnet登陆

localhost.localdomain login: root

Password:

Last login: Sun Jul 30 22:59:36 from 10.0.0.1

[[email protected] ~]# ls

anaconda-ks.cfg  index.html  install.log  install.log.syslog

[[email protected] ~]# pwd

/root