Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

SCO Openserver wont allow Telnet from public IP's?

Posted on 2006-06-12
4
Medium Priority
?
573 Views
Last Modified: 2013-12-27
Guys,
Ive got a SCO openserver (3.2) that will allow access by telnet to anyone on the LAN but when I forward in telnet (temporary) from the firewall it rejects the connection attempts.  From the client it just times out. I presume the previous admin had this blocked for good reason, however we need to change it temporarily.  any help would be greatly appreciated. I am much more a windows admin then unix.
0
Comment
Question by:Poudrecomputer
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 6

Expert Comment

by:dotENG
ID: 17040478
This is the OS/2 channel, you should post your question in:
http://www.experts-exchange.com/Operating_Systems/Unix/

Anyway, this looks like a firewall/routing/netmask problem.
Try running "netstat –rn" to get your network configuration.
0
 

Author Comment

by:Poudrecomputer
ID: 17043700
dotENG,
Yah i noticed i somehow posted to the wrong spot.. anyways... heres the results from hyperterm
---------------------------------------
netstat -rn
Routing tables
Destination           Gateway             Flags    Refs        Use      Interface
127.0.0.1             127.0.0.1             UH          3      262382        lo0
192.168               192.168.0.100      UC          1        0              net0
192.168.0.100      127.0.0.1            UGHS      163      833           lo0
224                     192.168.0.100      UCS         0        0              net0
root#
---------------------------------------

I appreciate any help! : )
0
 
LVL 6

Accepted Solution

by:
dotENG earned 2000 total points
ID: 17046114
Most likely your netmask is incorrect, to be sure do a "cat /etc/tcp" and check for something that looks like NETMASK=255.255.0.0
If so, edit the /etc/tcp file to NETMASK=255.255.255.0 and add GATEWAY=IP_ADDRESS_OF_FIREWALL.

All this is correct if your network uses Class C netmask (254 addresses from 192.168.0.1 to 192.168.0.254), if your network uses Class B netmask (65534 addresses from 192.168.0.1 to 192.168.255.254) then don't change the mask.

I don't know if it's possible to restart networking in SCO like Linux (/etc/init.d/network restart), so if it's possible, restart the server.
0

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why Shell Scripting? Shell scripting is a powerful method of accessing UNIX systems and it is very flexible. Shell scripts are required when we want to execute a sequence of commands in Unix flavored operating systems. “Shell” is the command line i…
Sometimes a user will call me frantically, explaining that something has gone wrong and they have tried everything (read - they have messed it up more and now need someone to clean up) and it still does no good, can I help them?!  Usually the standa…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question