Ubuntu 开启TELNET服务

步骤：　

1、安装xinetd 以及telnetd 

sudo apt-get install xinetd telnetd 

2、配置文件/etc/inetd.conf 

sudo gedit /etc/inetd.conf 

在文件中加入此句：

telnet stream tcp nowait telnetd /usr/sbin/tcpd /usr/sbin/in.telnetd 

3.修改/etc/xinetd.conf 

sudo gedit /etc/xinetd.conf 

将文件中的内容改为一下：

# Simple configuration file for xinetd # # Some defaults, and include /etc/xinetd.d/ defaults { # Please note that you need a log_type line to be able to use log_on_success # and log_on_failure. The default is the following : # log_type = SYSLOG daemon info instances = 60 log_type = SYSLOG authpriv log_on_success = HOST PID log_on_failure = HOST cps = 25 30 } includedir /etc/xinetd.d 

4. 在/etc/xinetd.d/telnet并加入以下内容： 

sudo gedit /etc/xinetd.d/telnet

将文件内容改为：

# default: on 
# description: The telnet server serves telnet sessions; it uses \ 
# unencrypted username/password pairs for authentication. 
service telnet 
{ 
disable = no 
flags = REUSE 
socket_type = stream 
wait = no 
user = root 
server = /usr/sbin/in.telnetd 
log_on_failure += USERID 
} 

5.重启机器或重启网络服务

sudo /etc/init.d/xinetd restart

6.使用TELNET客户端远程登录

telent 10.10.103.77

操作图片：