Go Back   HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials > Linux Forums > Desktop Operation

Do you like HowtoForge? Please consider supporting us by becoming a subscriber.
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 13th September 2012, 16:48
blocker blocker is offline
Senior Member
 
Join Date: Mar 2008
Posts: 178
Thanks: 9
Thanked 4 Times in 4 Posts
Unhappy Skype for linux opens TCP and UDP port directly on router?

Hello,

i have noticed a strange thing. In my router there is a port forward that i did not made. It is even not visible in the manual port forwarding menu, it is only visible in the port forwarding log:

Destination Proto. Port Range Redirect to
all TCP 31929 192.168.1.214
all UDP 31929 192.168.1.214

i have tried telnet from my network, and from outside to this port, and it connects, the connection stays active 4-5 seconds then it drops

# telnet MY_REMOTE_IP 31929
Trying MY_REMOTE_IP...
Connected to MY_REMOTE_IP.
Escape character is '^]'.
Connection closed by foreign host.

on 192.168.1.214 i have checked which service is running on this port, and guess what??? it was skype!!!

when i quit skype, ports close, but this redirect still stays in my router table, even if i refresh.

i have for 2 weeks reinstalled this PC with debian and downloaded skype from the official site as .deb package.

the questions is how did skype managed to open those ports on my router and redirect them to the PC on which skype is running

and

why does skype needs those ports

i will be happy to hear your opinions!
Reply With Quote
Sponsored Links
 

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
IPSCoonfig is not avaliable after few hours server has been rebooted emanation Installation/Configuration 11 20th September 2011 13:22
Cant connect to SMTP usign Microsoft Outlook onlinewebs Installation/Configuration 4 12th September 2011 20:54
Howto analyse a IPTables firewall issue? chillifire Installation/Configuration 2 27th August 2008 08:23
Facing problem with ICMP (ping request) princeu28 Installation/Configuration 5 14th August 2008 01:13
Opening TPC ports thehappyappy Installation/Configuration 12 7th May 2008 19:39


All times are GMT +2. The time now is 21:55.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.