"VPN Service failed to start" and Deep Packet Inspection (DPI)

Asked by Geek on 2014-09-15

"PPTP VPN Service failed to start"
"VPN Service Failed to start"

This should help many people if you’re having constant disconnects with VPN on Ubuntu. :)
some countries use advanced firewall ( Deep packet inspection ) to Censorship the Internet ( in this scenario, disconnect VPN ) and instead of block traffics directly use simple and powerful tricks such as DNS Interception ( redirect or block queries for specific domains ) or DNS filtering so that resemble it is an old bug. indeed, Deep packet inspection technology has the ability to decrypt on the fly, perform SSL session inspection , Once a match is detected the connection is disconnected and the user gets a ‘403’ forbidden page or ‘page not found’ and one is important for us disconnect VPNs regularly.

what's your opinion?

thank you
G ( from Iran )

some useful links and resources:

http://swimminginthought.com/encryption-type-matters-deep-packet-inspection-solved/

https://blog.torproject.org/category/tags/deep-packet-inspection

http://www.vpnmag.co.uk/internet-censorship-now-relying-deep-packet-inspection-vpn-blocks/

http://www.symantec.com/connect/articles/firewall-evolution-deep-packet-inspection

https://techlib.barracuda.com/display/bngv54/how+to+configure+dns+interception

forums.whirlpool.net.au/archive/2268274

ieeexplore.ieee.org/search/searchresult.jsp?newsearch=true&queryText=deep+packet+inspection

https://sites.google.com/site/deeppacketinspectiondpi/

Question information

Language:
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Status:
Answered
For:
Ubuntu network-manager Edit question
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Last query:
2014-09-15
Last reply:
2014-09-15

If you get an SSH server outside of your country then make an SSH tunnel to that server, you can then use that as a proxy for web access.

Bit easier

Geek (goodbye-bluesky90) said : #2

@ andrew-woodhead666
thank you for response, but this isn't a strong way against DPI.

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