Re: [tor-relays] DNS Server

[dns1983@xxxxxxxxxx]

Ok, i understood. So, for my purposes it's not useful to change dns servers. I'll continue to use my ISP DNS servers or those of my virtual server provider.

Thanks

Il 23 gennaio 2019 15:54:34 CET, Dmitrii Tcvetkov <demfloro@xxxxxxxxxxx> ha scritto:

On Wed, 23 Jan 2019 11:23:50 +0100
dns1983@xxxxxxxxxx wrote:

Of course. But, as far as I know, you can host multiple domains to
the same ip. So, in such case, if you only know the ip you can't tell
what domain I visit.


If your adversary is able to catch your packets, then he's able to see
packet headers, like source and destination IP addresses, also he can
see content of the packets. Although modern HTTPS traffic is encrypted,
but the very start of the TLS handshake isn't, so such adversary can see
domain (SNI[1] field in ClientHello[2]) to which you connect to.

[1] https://en.wikipedia.org/wiki/Server_Name_Indication
[2] https://en.wikipedia.org/wiki/Transport_Layer_Security#TLS_handshake

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