[CentOS-mirror] ftp.wrz.de IPv6

Thu Oct 19 10:57:53 UTC 2017
Anssi Johansson <avij at centosproject.org>

Christian Freund kirjoitti 19.10.2017 klo 12.41:
> Hello List,
> 
> the mirror-system at ftp.wrz.de is now also available via IPv6 at 2003:d1:3012::400 (AAAA entry for ftp.wrz.de was added) and has been upgraded to a 300 Mbit/s uplink. It seems to work because after the DNS-entry was up there was traffic via v6 instantly.
> 
> Please add
> 2003:d1:3012::400
> 2003:d1:3012::401
> 2003:d1:3012::402
> 2003:d1:3012::403
> 
> to the hosts that are allowed to sync. I currently added -4 to the rsync-command (the default rsync on CentOS prefers IPv6), but I want the sync to work with IPv6.

Great, it's nice to have more IPv6-capable mirrors. I have now added 
2003:d1:3012::400/126 to the ACL so you should now be able to rsync over 
IPv6.

There is only a slight problem with FTP over IPv6:

$ telnet ftp.wrz.de ftp
Trying 2003:d1:3012::400...
telnet: connect to address 2003:d1:3012::400: Connection refused
Trying 217.243.224.144...
Connected to ftp.wrz.de.
Escape character is '^]'.
220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 250 allowed.
220-Local time is now 12:40. Server port: 21.
220-Only anonymous FTP is allowed here
220 You will be disconnected after 15 minutes of inactivity.
quit
221-Goodbye. You uploaded 0 and downloaded 0 kbytes.
221 Logout.
Connection closed by foreign host.

I wonder if the IPv6 part could be fixed? It's currently showing up as a 
failure on http://miuku.net/ipv6reach/ where I keep statistics of 
IPv6-capable mirrors. An alternative would be to remove the FTP URL from 
our mirror database. I think we already have a sufficient number of FTP 
mirrors to serve the needs of those users who prefer to get their files 
over FTP.

Thanks!