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TELNETLOGIN

Section: Maintenance Commands (8)
Index Return to Main Contents

BSD mandoc
Linux NetKit (0.17)  

NAME

telnetlogin - login wrapper for telnetd  

SYNOPSIS

telnetlogin [-h host ] [-p ] [username ]  

DESCRIPTION

telnetlogin is a setuid wrapper that runs login(1). It is meant to be invoked by telnetd(8); the idea is to remove the necessity of running telnetd as root.

telnetlogin should be installed mode 4750, user root, group telnetd. Then, telnetd may be run from /etc/inetd.conf as user ``nobody'', group ``telnetd'', and with the option -L path-to-telnetlogin

telnetlogin accepts only the subset of options to login(1) shown above, in the order listed. This is the order telnetd 8 normally provides them in. telnetlogin also does sanity checks on the environment variables TERM , and REMOTEHOST It also insists that the standard input, output, and error streams are open on a terminal, and that it is the process group leader of the foreground process of that terminal. After checking all of these conditions, checking the values of the above environment variables for reasonable values, resetting signal handlers, and so forth, it execs login.  

SEE ALSO

login(1), inetd.conf5, inetd(8), telnetd(8)  

RESTRICTIONS

telnetlogin does not permit the -f option to login, so will not work with telnetds that perform authentication via Kerberos or SSL.

THIS IS PRESENTLY EXPERIMENTAL CODE; USE WITH CAUTION.  

HISTORY

telnetlogin was written during the development of NetKit 0.17.


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
RESTRICTIONS
HISTORY


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