6.Use this command to start telnet server: sudo /etc/init.

#not allow access from the two IP.Īccess_times = 8:00-9:00 20:00-21:00 #allow access in the two times # unencrypted username/password pairs for authentication. # description: The telnet server serves telnet sessions it uses } 4.You can change telnet port number by edit /etc/services with this line: telnet 23/tcp 5.If you’re not satisfied with default configuration.Edit etc/xinetd.d/telnet, add following: # default: on # Please note that you need a log_type line to be able to use log_on_success # Some defaults, and include /etc/xinetd.d/ To check whether you have sudo privileges or not, you can launch the following command. Note : there are no practical differences between adding a user to sudoers on Ubuntu and Debian.

注意：如果nf不存在，可以手动创建 3.Edit /etc/nf,make its content look like following: # Simple configuration file for xinetd In order to install a SSH server on Ubuntu 20.04, you need to have sudo privileges on your server. 转：参考：本方法也适用于Debian Linux。 Install and Enable Telnet server in Ubuntu Linux 1.Install telnet use this command in terminal(Applications/Accessories/Terminal): sudo apt-get install xinetd telnetd 2.Edit /etc/nf using your favourite file editor with root permission,add this line: telnet stream tcp nowait telnetd /usr/sbin/tcpd /usr/sbin/in.telnetd

Setup telnet server ubuntu