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Full Discussion: telnetd daemon
Operating Systems AIX telnetd daemon Post 302421244 by zaxxon on Friday 14th of May 2010 12:41:01 AM
Old 05-14-2010
There are some points on that..
  • Telnet is unencrypted and out of date - ssh is the protocol to go for sure.
  • Trying to get a stable network should be the main task in this problem.
  • You might want to check with the process list ps how a dead session is different to a working one. Maybe there is missing an attached process and PPID is different that to working sessions. By that you could set up a small script via cron, that kills dead sessions for clean up.
  • There could be the one or other network option (see man no) that might be related to that, but I don't know if and which. Again, first 2 points of this list are the things to solve. Rest is just ugly workaround.
 

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portslave(8)							     Portslave							      portslave(8)

NAME
portslave - terminal server program. SYNOPSIS
portslave [+config-file] port|- DESCRIPTION
This manual page documents briefly the portslave, program. This program is a getty replacement that will run it's own version of pppd, the user can specify their user-name via a login: prompt or PPP PAP negotiation. After the username and password have been supplied the user will be authenticated by the RADIUS protocol. OPTIONS
An optional first parameter is '+config-file' to specify an alternate config file. The default is /etc/portslave/pslave.conf . The next parameter is either the port number or '-'. The value '-' means that portslave is to use it's controlling tty as the serial device and inspect the config file to find the RADIUS port number which matches that. This was originally written for telnetd support (telnetd puts a '-' as the first command line parameter) but can be used for other things. To run over the telnet protocol put a config entry similar to the following in your inetd configuration: telnet stream tcp nowait root /usr/sbin/tcpd /usr/sbin/in.telnetd -L /usr/sbin/portslave Then in the pslave.conf file put a series of entries specifying every pseudo-tty device (either ptyp0, ptyp1, etc or pts/1, pts/2 etc depending on which type of device naming you use). For the RADIUS port numbers which are to be used for telnet connections you must spec- ify the initchat as an empty string. If you want to run portslave over a clean TCP connection (no telnet protocol) then put the following in your inetd configuration: telnet stream tcp nowait root /usr/sbin/tcpd /usr/sbin/portslave - AUTHOR
This man page was written by Russell Coker <russell@coker.com.au>. May be freely used and distributed without restriction. SEE ALSO
pslave.conf(5), pppd(8), ctlportslave(1) http://doc.coker.com.au/projects/portslave/ Russell Coker <;russell@coker.com.au> 2010.03.30 portslave(8)
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