Visit Our UNIX and Linux User Community

Telnet client IP determination

Thread Tools Search this Thread
Top Forums Programming Telnet client IP determination
# 1  
Old 08-08-2002
Telnet client IP determination

I have configured my firewall to allow only five remote IP's to connect to my server. Upon connection...i would like to automate the Xsession functions for authorized IP's.

Mainly, $DISPLAY of the environment to the client.

I understand that the "gethostbyaddr" function is capable of this. But this means i would have to make another connection(as in...a separate client-to-server) other than the original telnet to perform this. Correct?

How do i do this without burdening the client with starting two scripts?

Previous Thread | Next Thread
Test Your Knowledge in Computers #354
Difficulty: Medium
gawk is the only awk implementation that makes serious progress implementing internationalization and localization and TCP/IP networking.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Determination n points between two coordinates

Hi guys. Can anyone tell me how to determine points between two coardinates. For example: Which type of command line gives me 50 points between (8, -5, 7) and (2, 6, 9) points Thanks (5 Replies)
Discussion started by: rpf
5 Replies

2. Linux

telnet client and logs

Hello everyone. I have a script that telnets into a linux workstation and restarts a service, while logging the session to a file. I'm kind of new to linux so when I was using windows I would capture something like windows cli: telnet -f c:/capture.log ... # /sbin/service... (3 Replies)
Discussion started by: Elyas_cr
3 Replies

3. Red Hat

Total space Determination

Hi experts, # df -h Filesystem Size Used Avail Use% Mounted on /dev/hda9 3.8G 1.7G 2.0G 46% / none 369M 0 369M 0% /dev/shm /dev/hda10 2.0G 33M 1.8G 2% /tmp /dev/hda12 1.4G 1.2G 260M 82% /usr I used df -h... (3 Replies)
Discussion started by: William1482
3 Replies

4. UNIX for Advanced & Expert Users

difference between logging into unix through f-secure ssh client and telnet

hi, what is the difference between logging into unix through f-secure ssh client and telnet is there any more security check is involved can any one explain thanks in advance (1 Reply)
Discussion started by: trichyselva
1 Replies

5. UNIX for Dummies Questions & Answers

mth code determination

FILE_DATE=`date +%Y%m%d` current mth code is 200808 How can i find the 56 mths back mth code. (1 Reply)
Discussion started by: dr46014
1 Replies

6. Programming

How to program a telnet client?

Hi, Experts: I have programmed a simple telnet client in sco unix 5.0.5, the client has passed throught the initial option negotiation, but I can't receive login prompt from the server. please help me. (8 Replies)
Discussion started by: thinker130
8 Replies

7. UNIX for Dummies Questions & Answers

IP address of telnet client

Hi, I am using the telnet client on windowsNT to access the Unix system. I want to find out the IP address of the telnet client from the server side. The reason is I want to set the DISPLAY environment variable when the user is logged on. Is there anyway that the the Unix server can... (1 Reply)
Discussion started by: vtran4270
1 Replies

8. Programming

Does Telnet client library exist ?

Hello, I'm new user in this forum, and i'm french ... so excuse me for my english :) In fact, I've to manage several network equipments which can be only configured with the telnet protocol. But using the standalone telnet tool, it's too long and hard. So I'd like to known if a Telnet... (0 Replies)
Discussion started by: aho
0 Replies

9. UNIX for Dummies Questions & Answers

Using telnet client from MacOSX's command line terminal

I'm completely new to Unix, but familiar with Mac OSX. I've just discovered the command line terminal feature of this new OS and I'm trying to learn how to telnet into my host's server to change permissions to allow executable cgi scripts for my website. Is there anyone who might be able to... (2 Replies)
Discussion started by: tylerl
2 Replies

10. UNIX for Dummies Questions & Answers

Hardware Determination

Does anyone know an equiv of lscfg -vp for HP-UX? (2 Replies)
Discussion started by: sam_pointer
2 Replies
XRLOGIN(1)						      General Commands Manual							XRLOGIN(1)

xrlogin - start an xterm that uses ssh (or optionally rlogin or telnet) to connect to a remote host SYNOPSIS
xrlogin [-l username] [-rlogin|-telnet] [xterm options] remote-host DESCRIPTION
Xrlogin opens an xterm window and runs ssh, rlogin or telnet to login to a remote host. Xrlogin automatically passes the -name argument to xterm with a value of "xterm-hostname" where hostname is the name of the remote host. This allows the user to specify resources in their server's resource manager which are specific to xterms from a given host. For example, this feature can be used to make all xterm windows to a given remote host be the same color or use a specific font or start up in a spe- cific place on the screen. Xrsh(1) passes the same string so they are compatible in this regard. Xrlogin specifies that the default title for the new xterm will be "hostname" where hostname is the name of the remote host. This and the -name argument above can be overridden with xterm-options on the command line. One could also use xrlogin's sister command xrsh(1) to open a window to a remote host. In the case of xrsh, the xterm would run on the remote host and use X as the connection protocol while xrlogin would run the xterm on the local host and use rlogin or telnet as the con- nection protocol. See xrsh(1) for a discussion of the merits of each scheme. OPTIONS
-l username When not using -telnet, use username as the id to login to the remote host. -rlogin Use the rlogin protocol to open the connection. In general rlogin is preferred because it can be configured to not prompt the user for a password. Rlogin also automatically propagates window size change signals (SIGWINCH) to the remote host so that applications running there will learn of a new window size. -telnet Use the -telnet protocol to open the connection. Use of telnet provided mostly for hosts that don't support rlogin. COMMON PROBLEMS
Make sure that the local host is specified in the .rhosts file on the remote host or in the remote hosts /etc/hosts.equiv file. See rlogin(1) for more information. EXAMPLES
xrlogin -bg red yoda Start a local red xterm which connects to the remote host yoda using rlogin. xrlogin -telnet c70 Open a local xterm which connects to the remote host c70 using telnet. SEE ALSO
xrsh(1), rlogin(1), telnet(1) AUTHOR
James J. Dempsey <> and Stephen Gildea <>. X Version 11 Release 6 XRLOGIN(1)

Featured Tech Videos