How To Install In.telnetd On Debian, Ubuntu, Kali, Fedora, Raspbian And MacOS?

How To Install In.telnetd On Debian, Ubuntu, Kali, Fedora, Raspbian And MacOS?

in.telnetd

basic telnet server

Install in.telnetd

  • Debian apt-get install telnetd-ssl Click to copy
  • Ubuntu apt-get install telnetd-ssl Click to copy
  • Kali Linux apt-get install telnetd Click to copy
  • Fedora dnf install telnet-server-1 Click to copy
  • Raspbian apt-get install telnetd-ssl Click to copy
  • macOS brew install telnetd Click to copy

telnetd

basic telnet server

The in.telnetd program is a server which supports the DARPA telnet interactive communication protocol. This legacy server should in general be abandoned in favour of a contemporary ssh-server, as this implementation only is able to process password and user name in clear text. Other variants, like telnetd-ssl and a selection of Kerberized TELNET servers, are able to improve on this by providing secure forms of authentication and encryption.

telnetd-ssl

telnet server with SSL encryption support

The in.telnetd program is a server which supports the DARPA telnet interactive communication protocol. SSL telnetd replaces normal telnetd using SSL authentication and encryption. It interoperates with normal telnetd in both directions. It checks if the other side is also talking SSL, if not it falls back to normal telnet protocol. Advantages over normal telnetd: Your passwords and the data you send will not go in cleartext over the line. Nobody can get it with tcpdump or similar tools.

telnet-server-1

login protocol
To install the latest version of in.telnetd in your favorite operating system just copy the in.telnetd installation command from above and paste it into terminal. It will download and install the latest version of in.telnetd 2026 package in your OS.