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voncloft Tux's lil' helper
Joined: 29 Jan 2014 Posts: 99
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Posted: Mon Dec 03, 2018 5:03 pm Post subject: Stagnant connections shown in netstat |
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I attached a screenshot of connections that are still showing , even though my device 192.168.42.2 (my phone) is not at home - (I am at work right now)
Why is it still showing a connection when I am not home with it?
https://imgur.com/a/0MCy2iw
Also the :4040 is a subsonic service, and it is currently streaming outside my network to my phone - but it seems to never close a connection.
Thanks.
(Red blocks are external IP's that are blocked out for security reasons) |
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eccerr0r Watchman
Joined: 01 Jul 2004 Posts: 9679 Location: almost Mile High in the USA
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Posted: Mon Dec 03, 2018 7:37 pm Post subject: |
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TCP is known as a stateful connection. However it requires packets to pass to control the connection.
If there are no packets flowing, and there doesn't need to be, the connection state table won't change, it assumes the device is still there even if it's not. The software needs to detect and reap those connections, and if it doesn't know how to do that you'll have to restart the program. _________________ Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching? |
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zeek Guru
Joined: 16 Nov 2002 Posts: 480 Location: Bantayan Island
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eccerr0r Watchman
Joined: 01 Jul 2004 Posts: 9679 Location: almost Mile High in the USA
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Posted: Sun Dec 09, 2018 4:00 am Post subject: |
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This unfortunately depends on the software, if it does not have the capability to send keep alive packets, either you have to write them into the software or else you're still in the same boat... _________________ Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
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