[Bitcoin-development] Anyone still using SOCKS4?

Odinn Cyberguerrilla odinn.cyberguerrilla at riseup.net
Mon Jul 7 06:34:53 UTC 2014

Wait, I thought SOCKS4 was supposed to help somehow in terms of prevention
of leaking of information?

Or maybe I am misremembering.  Here's what I'm thinking of...
1) https://trac.torproject.org/projects/tor/wiki/doc/Preventing_Tor_DNS_Leaks

2) More regarding TOR,

I keep seeing these warnings about SOCKS and DNS information leaks. Should
I worry?

The warning is:

Your application (using socks5 on port %d) is giving Tor only an IP
address. Applications that do DNS resolves themselves may leak
information. Consider using Socks4A (e.g. via Polipo or socat) instead.


I'm not sure that means I'm screaming fire or anything, but isn't there
some good reason for SOCKS4 and SOCKS4A?
Or maybe another way to ask this is:  Looking at an example in which
someone is running Tor, Privoxy, I2P, and FoxyProxy together while running
Bitcoin Core, would there be a problem with having a setting for SOCKS4A
for traffic in such a setup given the changes proposed to remove SOCKS4 as
suggested in bitcoin-development?

Probably there is just a simple answer to that last question, like "no."
But I thought I'd ask.

> On Wed, Jun 11, 2014 at 5:39 PM, Wladimir <laanwj at gmail.com> wrote:
>> If no one screams fire, we plan on removing support for it in the next
>> major release, for two reasons:
>> - It would remove some crufty, hardly tested code paths
>> - SOCKS5 offers better privacy as it allows DNS redirection
> Another one:
> - SOCKS5 supports IPv6
> Last call...
> Wladimir
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