[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
** No longer affects: ubuntu-docs (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/serverguide/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
Updated the description with link to the possible page of concern. The serverguide for saucy doesn't have postfix.page. Has it been dropped deliberately? ** Also affects: serverguide Importance: Undecided Status: New ** Description changed: + Refer to https://help.ubuntu.com/13.04/serverguide/postfix.html + By default IPv6 privacy extensions is installed on Ubuntu server and temporary addresses are preferred. This means that outgoing connections from Postfix will use the temporary IPv6 addresses, which will likely fail reverse DNS checks and cause mail to bounce. Postfix should implement the requirements of RFC5014 and ensure that it sets the IPV6_PREFER_SRC_PUBLIC IPv6 socket option (or possibly provide a configuration option to enforce that requirement). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: postfix (not installed) ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33 Uname: Linux 3.2.0-34-generic x86_64 ApportVersion: 2.0.1-0ubuntu15 Architecture: amd64 CheckboxSubmission: 55cafa5b8b82ed224cc59d444cb1fc25 CheckboxSystem: 3e53d3ea5811723345f19eff5070f9ab Date: Wed Dec 12 11:51:28 2012 InstallationMedia: Ubuntu 11.10 Oneiric Ocelot - Release amd64 (20111012) MarkForUpload: True SourcePackage: postfix UpgradeStatus: Upgraded to precise on 2012-05-07 (218 days ago) ** Tags removed: amd64 apport-bug precise running-unity ** Tags added: serverguide -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/serverguide/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
This is actually a bug in the ubuntu server settings. Servers should not have ipv6 privacy on by default, and postfix should honor what the admin has set. I'll revisit this and either close it with a reference to the other bug, or reassign it, as appropriate. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
** Changed in: ubuntu-docs (Ubuntu) Milestone: ubuntu-13.04-beta-1 = ubuntu-13.04-beta-2 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
This is only really a problem when you use the default wildcard address for your MTA binds. And it looks like there already is an option in postfix that allows you to fix the outbound source address. smtp_bind_address6 So perhaps its a configuration/documentation issue. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
http://www.postfix.org/postconf.5.html#smtp_bind_address6 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
What we ship now is the upstream default and that is the correct thing to do by default. I think it's a fair point to discuss if, given the increasing availability of IPv6, there should be a debconf question about this. I think it would make sense to add it as a low priority (not normally asked) question so the answer can be pre-seeded. I think the documentation (as usual for postfix) is excellent. When I ran into this problem myself, I was able to solve it using the available documentation. Postfix documentation is not, however, aimed at new postfix users. It would probably make sense to add a discussion about this to the Ubuntu Server Guide. ** Also affects: ubuntu-docs (Ubuntu) Importance: Undecided Status: New ** Changed in: ubuntu-docs (Ubuntu) Importance: Undecided = Medium ** Changed in: ubuntu-docs (Ubuntu) Status: New = Confirmed ** Changed in: ubuntu-docs (Ubuntu) Milestone: None = ubuntu-13.04-beta-1 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1089342] Re: Postfix uses temporary IPv6 address for outbound connections
Postfix gets used in many different situations in Ubuntu since it is the default MTA. In many of these cases, using the privacy extensions is perfectly appropriate, so I don't think that making this change by default is appropriate. For traditional MTA applications, I agree it should be set and it might be nice to provide this as a configuration option (I did get burned by this too the first time I set up postfix on an IPv6 connected host). ** Changed in: postfix (Ubuntu) Importance: Undecided = Wishlist ** Changed in: postfix (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/1089342 Title: Postfix uses temporary IPv6 address for outbound connections To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1089342/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
