ipv6 on nginx.org

Daniel Krämer d.kraemer at mittwald.de
Tue Oct 20 14:12:56 UTC 2015


> Looks like an MTU issue then (small response OK, big responses timeout).
> Check if you correctly clamp MSS on IPv6.
thanks for your suggestion. I made some tests with my private server and 
workplace. I'm not done testing MSS clamping yet.

[root at kackkiste]~# echo -ne "GET / HTTP/1.1\nHost: nginx.org\n\n" |nc -6 
nginx.org 80 > /tmp/test
[root at kackkiste]~# ls -l /tmp/test
-rw-r--r--. 1 root root 7936 20. Okt 15:38 /tmp/test
[root at kackkiste]~# nc -6 -l 80 < /tmp/test
GET / HTTP/1.1
Host: kackkiste.de

[dkraemer at castleblack:~] echo -ne "GET / HTTP/1.1\nHost: 
kackkiste.de\n\n" |nc -6 kackkiste.de 80
HTTP/1.1 200 OK
Server: nginx/1.7.7
Date: Tue, 20 Oct 2015 13:38:07 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 7658
Last-Modified: Tue, 22 Sep 2015 15:20:08 GMT
Connection: keep-alive
Keep-Alive: timeout=15
ETag: "560171a8-1dea"
Accept-Ranges: bytes

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
[..lot of stuff..]

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