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5 votes

wireshark captures vpn tun0 smtp as unencrypted, why?

tun0 is the virtual tunnel interface where the traffic gets routed to before encryption (outgoing) or after decryption (incoming) - so seeing plain traffic here is perfectly normal. To observe the ...
Steffen Ullrich's user avatar
3 votes

Do I need an IP whitelist on top of a VPN?

Limiting from what IP addresses the VPN is accessible can be a useful part of a defense in depth strategy. This way attackers cannot exploit vulnerabilities in the VPN (which unfortunately happen, and ...
Steffen Ullrich's user avatar
2 votes

Why do most VPN protocols work on the Transport Layer and not on the Network Layer instead?

Why do most VPN protocols work on the Transport Layer and not on the Network Layer instead? Most VPN/tunnel protocols transport (encapsulate, protect) network layer (IP) or sometimes link layer (...
ysdx's user avatar
  • 1,382
1 vote

Modern VPNs and average MITM attacks

I believe there are some inaccuracies among your statements, either because of your sources or misinterpretation. So I will rather focus on your summarized observations and question to try and not ...
bsaverino's user avatar
  • 154
1 vote
Accepted

How do vpn providers prevent other user internal ip access?

First, I'm assuming that this question is about the common case of consumer VPN where user1 and user2 are different users of the VPN service, i.e. each client systems creates their own VPN tunnel and ...
Steffen Ullrich's user avatar

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