IPv6
Hi, we've been using IPv6 for a few years now, but so far we haven't used it with Cyrus. Now we want to, and I have a few questions: Is it correct that if we use host names in the listen statement and add a record to the DNS that Cyrus will automatically listen to both the IPv4 and the IPv6 address? I have manually added listen statements with literal IPv6 addresses to cyrus.conf and HUP'ed the master, but that didn't seem to work. What format do I have to use? Plain addresses (e.g. 2001:DB8::6f0:484c:df5:e8b1:28cd), in brackets like in a browser (e.g. [2001:DB8::6f0:484c:df5:e8b1:28cd]), sendmail-style (e.g. IPv6:2001:DB8::6f0:484c:df5:e8b1:28cd) or ...? Or is the problem that for changes like that I have to restart the service? Cheers Sebastian -- .:.Sebastian Hagedorn - Weyertal 121 (Gebäude 133), Zimmer 2.02.:. .:.Regionales Rechenzentrum (RRZK).:. .:.Universität zu Köln / Cologne University - ✆ +49-221-470-89578.:. Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
On Wed, March 23, 2016 3:13 pm, Sebastian Hagedorn via Info-cyrus wrote: > Hi, > > > we've been using IPv6 for a few years now, but so far we haven't used it with > Cyrus. Now we want to, and I have a few questions: > > > Is it correct that if we use host names in the listen statement and add a > record to the DNS that Cyrus will automatically listen to both the > IPv4 and the IPv6 address? > > > I have manually added listen statements with literal IPv6 addresses to > cyrus.conf and HUP'ed the master, but that didn't seem to work. What format do > I have to use? Plain addresses (e.g. 2001:DB8::6f0:484c:df5:e8b1:28cd), > in brackets like in a browser (e.g. [2001:DB8::6f0:484c:df5:e8b1:28cd]), > sendmail-style (e.g. IPv6:2001:DB8::6f0:484c:df5:e8b1:28cd) or ...? Or is the > problem that for changes like that I have to restart the service? Sebastian, 'listen' entries go into /etc/cyrus.conf, not imapd.conf, and IMO require a Cyrus service restart, yes. Regards, Eric Luyten, Computing Centre VUB/ULB, Brussels. Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
Please disregard my previous comment, misread your original post. Need coffee. Eric Luyten. On Wed, March 23, 2016 3:27 pm, Eric Luyten via Info-cyrus wrote: <> Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
Zitat von Sebastian Hagedorn via Info-cyrus : Hi, we've been using IPv6 for a few years now, but so far we haven't used it with Cyrus. Now we want to, and I have a few questions: Is it correct that if we use host names in the listen statement and add a record to the DNS that Cyrus will automatically listen to both the IPv4 and the IPv6 address? I have manually added listen statements with literal IPv6 addresses to cyrus.conf and HUP'ed the master, but that didn't seem to work. What format do I have to use? Plain addresses (e.g. 2001:DB8::6f0:484c:df5:e8b1:28cd), in brackets like in a browser (e.g. [2001:DB8::6f0:484c:df5:e8b1:28cd]), sendmail-style (e.g. IPv6:2001:DB8::6f0:484c:df5:e8b1:28cd) or ...? Or is the problem that for changes like that I have to restart the service? Cheers Sebastian Hm, the man page say "bracket-enclosed IP address" but until now we have only used the port as service name "imap" e.g. listen="imap" which works fine for both IPv4 and IPv6 on a dual stack host. Do you have any special need to use the hostname/IP address and not bind to all local addresses? Regards Andreas smime.p7s Description: S/MIME Cryptographic Signature Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
--On 23. März 2016 um 15:41:25 +0100 lst_hoe02--- via Info-cyrus wrote: we've been using IPv6 for a few years now, but so far we haven't used it with Cyrus. Now we want to, and I have a few questions: Is it correct that if we use host names in the listen statement and add a record to the DNS that Cyrus will automatically listen to both the IPv4 and the IPv6 address? I have manually added listen statements with literal IPv6 addresses to cyrus.conf and HUP'ed the master, but that didn't seem to work. What format do I have to use? Plain addresses (e.g. 2001:DB8::6f0:484c:df5:e8b1:28cd), in brackets like in a browser (e.g. [2001:DB8::6f0:484c:df5:e8b1:28cd]), sendmail-style (e.g. IPv6:2001:DB8::6f0:484c:df5:e8b1:28cd) or ...? Or is the problem that for changes like that I have to restart the service? Cheers Sebastian Hm, the man page say "bracket-enclosed IP address" but until now we have only used the port as service name "imap" e.g. listen="imap" which works fine for both IPv4 and IPv6 on a dual stack host. Do you have any special need to use the hostname/IP address and not bind to all local addresses? Yes, I do (multi-homed system), and I have just tried it on a test system. Using literal IPv6 adresses without brackets works fine, even though it looks strange: imapv6cmd="imapd" listen="2001:DB8:0:6f0:21c:42ff:fe5e:202e:imap" I will now try a host name with bot A and records, but I assume that will work as well. -- .:.Sebastian Hagedorn - Weyertal 121 (Gebäude 133), Zimmer 2.02.:. .:.Regionales Rechenzentrum (RRZK).:. .:.Universität zu Köln / Cologne University - ✆ +49-221-470-89578.:. pgpgFDC_Ancj7.pgp Description: PGP signature Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
Hi, > On Wed, 23 Mar 2016 16:03:10 +0100 > Sebastian Hagedorn via Info-cyrus said: info-cyrus> Yes, I do (multi-homed system), and I have just tried it on a test info-cyrus> system. Using literal IPv6 adresses without brackets works fine, even info-cyrus> though it looks strange: info-cyrus> imapv6cmd="imapd" listen="2001:DB8:0:6f0:21c:42ff:fe5e:202e:imap" Though it is not mentioned in the manpage, the address:port notation without bracket is also accepted. You can find the following comment for parse_inet_listen() in master/master.c: * Parse the "listen" parameter as one of the forms: * * hostname * hostname ':' port * ipv4-address * ipv4-address ':' port * '[' ipv4-address ']' * '[' ipv4-address ']' ':' port * '[' ipv6-address ']' * '[' ipv6-address ']' ':' port info-cyrus> I will now try a host name with bot A and records, but I assume info-cyrus> that will work as well. Yes, it should work. Sincerely, -- Hajimu UMEMOTO u...@mahoroba.org u...@freebsd.org http://www.mahoroba.org/~ume/ Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
--On 24. März 2016 um 01:32:57 +0900 Hajimu UMEMOTO wrote: Though it is not mentioned in the manpage, the address:port notation without bracket is also accepted. You can find the following comment for parse_inet_listen() in master/master.c: * Parse the "listen" parameter as one of the forms: * * hostname * hostname ':' port * ipv4-address * ipv4-address ':' port * '[' ipv4-address ']' * '[' ipv4-address ']' ':' port * '[' ipv6-address ']' * '[' ipv6-address ']' ':' port info-cyrus> I will now try a host name with bot A and records, but I assume info-cyrus> that will work as well. Yes, it should work. Thank you! Perhaps that should go into the manpage of cyrus.conf? -- .:.Sebastian Hagedorn - Weyertal 121 (Gebäude 133), Zimmer 2.02.:. .:.Regionales Rechenzentrum (RRZK).:. .:.Universität zu Köln / Cologne University - ✆ +49-221-470-89578.:. pgpdz9rAqdF4t.pgp Description: PGP signature Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
Re: IPv6
Hi, > On Wed, 23 Mar 2016 17:43:30 +0100 > Sebastian Hagedorn said: > * Parse the "listen" parameter as one of the forms: > * > * hostname > * hostname ':' port > * ipv4-address > * ipv4-address ':' port > * '[' ipv4-address ']' > * '[' ipv4-address ']' ':' port > * '[' ipv6-address ']' > * '[' ipv6-address ']' ':' port The `ipv6-address ':' port' notation is also accepted. However, it is not mentioned even in the comment. Hagedorn> Thank you! Perhaps that should go into the manpage of cyrus.conf? I'm not sure but I think the bracket notation is recommended. Sincerely, -- Hajimu UMEMOTO u...@mahoroba.org u...@freebsd.org http://www.mahoroba.org/~ume/ Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
