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Top Forums UNIX for Dummies Questions & Answers how to logging telnet (-n tracefile) Post 302468746 by jim mcnamara on Wednesday 3rd of November 2010 05:46:20 PM
Old 11-03-2010
That is for a tracefile, not logging sessions.
You need to create an interposer process, an alias maybe
This only works for outbound telnet -- not when someone connects to your system.
create a script called /usr/local/bin/telnet that does something like this:
Code:
#!/bin/ksh
umask 000     
[ ! -d tmp/log  ] && mkdir /tmp/log  2>&1> /dev/null
script -a /tmp/telnet.log.$$
/usr/bin/telnet  $*
exit 0

next in /etc/profile
Code:
alias telnet=/usr/bin/local/telnet

Users have to login again to activate this. When a user types "telnet somenode"
the system will telnet to there and record the entire session in a file in /tmp/log

Is this what you mean -- keylogging?
 

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telnetrc(4)							   File Formats 						       telnetrc(4)

NAME
telnetrc - file for telnet default options DESCRIPTION
The .telnetrc file contains commands that are executed when a connection is established on a per-host basis. Each line in the file con- tains a host name, one or more spaces or tabs, and a telnet(1) command. The host name, DEFAULT, matches all hosts. Lines beginning with the pound sign (#) are interpreted as comments and therefore ignored. telnet(1) commands are case-insensitive to the contents of the .telnetrc file. The .telnetrc file is retrieved from each user's HOME directory. EXAMPLES
Example 1: A sample file. In the following example, a .telnetrc file executes the telnet(1) command, toggle: weirdhost toggle crmod # Always export $PRINTER DEFAULT environ export PRINTER The lines in this file indicate that the toggle argument crmod, whose default value is "off" (or FALSE), should be enabled when connecting to the system weirdhost. In addition, the value of the environment variable PRINTER should be exported to all systems. In this case, the DEFAULT keyword is used in place of the host name. FILES
$HOME/.telnetrc SEE ALSO
telnet(1), in.telnetd(1M), environ(5) SunOS 5.10 9 Jan 1998 telnetrc(4)
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