Qmail

Lets start off by saying RTFM for the details.

tcpserver offers a concurrency limit to protect you from running out
of processes and memory. When you are handling 40 (by default)
simultaneous connections, tcpserver smoothly defers acceptance of new
connections.
tcpserver also provides TCP access control features, similar to
tcp-wrappers/tcpd's hosts.allow but much faster. Its access control
rules are compiled into a hashed format with cdb, so it can easily
deal with thousands of different hosts.

This package includes a recordio tool that monitors all the input and
output of a server.

tcpclient makes a TCP connection and runs a program of your choice. It
sets up the same environment variables as tcpserver.

This package includes several sample clients built on top of
tcpclient: who@, date@, finger@, http@, tcpcat, and mconnect.

tcpserver and tcpclient conform to UCSPI, the UNIX Client-Server
Program Interface, using the TCP protocol. UCSPI tools are available
for several different networks.

http://cr.yp.to/ucspi-tcp.html

HTH. HAND. YMMV.

It seems like on Mon, Feb 28, 2000 at 07:11:57PM -0700, The Wolf scribbled:
Orig Msg> Ok it may be kick ar$ but how is the security in this mechanism??
Orig Msg>
Orig Msg>
Orig Msg>
Orig Msg>


Jean Francois Sends...
President & CEO MagusNet, Inc.
MagusNet.com
CTO EBIZ Enterprises, Inc.
TheLinuxStore.com,TheLinuxLab.com,LinuxWired.net