Bug 198821

Summary: https://forums.freebsd.org/ not accessible from Tor exit nodes
Product: Services Reporter: Yuri Victorovich <yuri>
Component: ForumsAssignee: freebsd
Status: Closed Works As Intended    
Severity: Affects Many People CC: forum-admins
Priority: ---    
Version: unspecified   
Hardware: Any   
OS: Any   

Description Yuri Victorovich freebsd_committer freebsd_triage 2015-03-23 06:27:29 UTC
> $ telnet forums.freebsd.org 443
> <...skipped...>
> Escape character is '^]'
> Connection closed by foreign host

Connections are established and then immediately closed.

FreeBSD shouldn't be unfriendly to tor (like Yelp).
Comment 1 freebsd 2015-03-23 09:30:51 UTC
https://forums.freebsd.org/threads/posting-to-the-forums-and-tor-filtering.45486/


If you know of specific Tor IPs that are blocked, run them through
http://stopforumspam.com/ or a general blacklist check like
http://whatismyipaddress.com/blacklist-check.

We are basically "slaving" off of these blacklists, which prevents an
enormous amount of attacks and abuse. I see no reason to change that.

Like the thread states: we are not targeting Tor nodes in any way, but they have a tendency to end up on spam prevention blacklists, and we don't feel obligated to talk to those.

If a Tor node is removed from blacklists, they automatically gain access to the forums within a couple of hours.
Comment 2 Yuri Victorovich freebsd_committer freebsd_triage 2015-03-23 09:39:11 UTC
But there is no reason to prevent read-only access from any IPs. How can read-only access be used to attack?

You can prevent most of abuse by only requiring valid login/password, that were registered from non-blacklisted IPs. Then there is no need to prevent regular access even from blacklisted IPs.

Many people are privacy-freaks, and tor-freaks, and the current state makes them very unhappy about FreeBSD.
Comment 3 freebsd 2015-03-23 10:30:43 UTC
The blacklisting takes place outside of the forums, so there is simply no access to these IP addresses whatsoever. If read-only access is all that is required, I don't see where the privacy issues for these 'many people' actually lie. Any old proxy will do (as long as it isn't abused for spam and blacklisted). I see no need to consider this a problem that the forum staff needs to appropriate and accommodate.
Comment 4 Yuri Victorovich freebsd_committer freebsd_triage 2015-03-23 11:19:10 UTC
I don't see why you prevent people with valid login credentials to access forums through tor. By its nature all exit nodes will likely always be blacklisted. Read-only access shouldn't be a concern abuse-wise, and write access with valid credentials also shouldn't be a problem.

The way how this issue is currently handled is simply too crude.
Comment 5 freebsd 2015-03-23 11:28:22 UTC
@bugmeister: This is not a bug. Feel free to close.