TELNET(1) User Commands TELNET(1) NAME telnet - User interface to TELNET SYNOPSIS telnet [OPTION...] [HOST [PORT]] DESCRIPTION Login to remote system HOST (optionally, on service port PORT) General options: -4, --ipv4 use only IPv4 -6, --ipv6 use only IPv6 -8, --binary use an 8-bit data transmission -a, --login attempt automatic login -b, --bind=ADDRESS bind to specific local ADDRESS -c, --no-rc do not read the user's .telnetrc file -d, --debug turn on debugging -e, --escape=CHAR use CHAR as an escape character -E, --no-escape use no escape character -K, --no-login do not automatically login to the remote system -l, --user=USER attempt automatic login as USER -L, --binary-output use an 8-bit data transmission for output only -n, --trace=FILE record trace information into FILE -r, --rlogin use a user-interface similar to rlogin -?, --help give this help list --usage give a short usage message -V, --version print program version Mandatory or optional arguments to long options are also mandatory or op- tional for any corresponding short options. AUTHOR Written by many authors. REPORTING BUGS Report bugs to . COPYRIGHT Copyright (C) 2026 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO telnetd(1) The full documentation for telnet is maintained as a Texinfo manual. If the info and telnet programs are properly installed at your site, the com- mand info telnet should give you access to the complete manual. GNU inetutils 2.8 April 2026 TELNET(1)