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How to telnet if you r behind firewall????


 
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# 1  
Old 03-03-2002
How to telnet if you r behind firewall????

Hi all

My freind has Windows 98 and behind a firewall ports used are (LAN)

http:80
ftp :80
Socks :1080

I have telnet server and connected to TCP/IP i.e modem and phone line I want to let my freind Enter my linux box (telnet tunnel) i.e using port 80 and redirect it to telnet port:23 ......How ?????
# 2  
Old 03-03-2002
I'm not exactly sure I understabd your setup
but I'm assuming your friend has the Win98 PC
that is behind a firewall. First, firewalls
can be (and are most often) configured to allow
outbound requests to pass through (probably
use IP Masquerading) so an outbound telent
request should not be a problem.

I also assume you have a Linux box with a dial-up
connection to the Internet therefore is using
DCHP to get an IP address from your ISP each time
you dial in (so you probably get a different IP
address each time you connect). First, I would
NEVER allow telnet inbound from the Internet.
You should look into enabling ssh/sshd on your
Linux box. You friend would need an SSH Windows
client. Look at...
http://www.chiark.greenend.org.uk/~sgtatham/putty/
...for a decent free one. However, your ISP may
not route inbound requests to you unless you are
paying for that type of service (typically comes
with a "static" IP address). So, all of this may
be moot.

Anyway, I know it's not exactly what you are
asking for but I hope this helps a little.
# 3  
Old 03-04-2002
Lightbulb This is what I meant ????

I think I have found the solution .....it is HTTP tunneling i.e let my freind who has win98 to send data thru his server and make his PC as local server
http://www.htthost.com ...after tunnling these data it become on TCP/IP network i.e he could use telnet ,ssh,ftp whaetever pppd etc ....whenhe is behind a firewall .......
 

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