steld(1)

NAME
steld - Secure TELnet server

SYNOPSIS
steld [ options ]

DESCRIPTION
steld(8) is a daemon program for accepts and serves connections from clients. It can be run standalone or invoked by When run standalone, steld listens to port 10005 or the one described by the stel service by default. steld is intended to be run as root; however, it can be run by a non-privileged user, despite the fact that the daemon will only be capable of providing remote sessions for users with UID equal to the UID the daemon is running with. When invoked by the inetd.conf and services configuration files should be edited accordingly. For example: stel stream tcp nowait root /some/where/steld in.steld -t 28800

OPTIONS
steld recognizes the following options:

    -p port
        Use a non standard port number. If -p is not used, steld binds and listens to the standard STEL port.

    -t timeout
        Set idle timeout value. By default, idle time out is zero (disabled). timeout is expressed in minutes. If set, logged-in user are disconneted after timeout minutes of inactivity. This option is useful when users have a tendency to forget active connections unattended, or stay logged to sensitive systems forever (a bad habit).

    -k  Do not kill IP options. Killing of IP options is the default, for security reasons. Many attacks, in fact, rely on IP options such as source routing. This option can be exceptionally useful in some circumstances.

DIAGNOSTIC
steld reports errors via syslog.

AUTHOR
David Vincenzetti <vince@idea.sec.dsi.unimi.it>, Stefano Taino <taino@idea.sec.dsi.unimi.it> and Fabio Bolognesi <bolo@idea.sec.dsi.unimi.it>.

SEE ALSO
stel(1)