Re: [tor-relays] Bridge Usage and Setup

On Sun, 7 Jun 2015 12:31:52 +0200 tor-server-creator@use.startmail.com wrote:

...

I want to investigate why obfs4 is nearly never used.

hi, may you want to have a look into tails bug #9268 adressing some obfs issue

You mean, a Tails issue that happens to affect obfs4 since it likes to write large-ish packets, and what may be a Linux kernel issue that possibly makes the PLPMTUD code not that great.

I have a packet capture that I need to go over but, since it is tcpdump output from a terminal and not a pcap file I've been putting it off, but the fact that TCP/IP breaks when write calls are done when the system is breaking PMTUD is not an obfs4 issue.

In sane environments where PMTUD works, obfs4 has no issues with shorter than normal MSS.

Regards,