Red Hat Bugzilla – Bug 444849
vino only listens on IPv6 interfaces
Last modified: 2013-03-05 22:55:55 EST
Description of problem: I've always connected to vino-server over SSH like this: ssh -L 5901:localhost:5900 remotehost Then start vncviewer localhost:1 on the local system. This doesn't work with F9's vino-server. Instead, the SSH session gives an error message: channel 3: open failed: connect failed: Connection refused Even trying to telnet to localhost port 5900 fails: >telnet localhost 5900 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused But this works: >telnet localhost6 5900 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused Trying ::1... Connected to localhost6. Escape character is '^]'. RFB 003.007 ^] telnet> quit Connection closed. netstat shows that vino-server is listening on ::1:5900 >netstat -nlp|grep 5900 (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) tcp 0 0 ::1:5900 :::* LISTEN 3285/vino-server As a workaround I've been able to forward the IPv6 port over SSH like this: ssh -L '5901:[::1]:5900' remotehost vino-server should be listening on a socket that allows connections to 127.0.0.1 and ::1 by default. Version-Release number of selected component (if applicable): vino-2.22.1-1.fc9.i386
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
The problem goes beyond localhost; on two different F9 machines I've tried, vino-server only listens on remote IPv6 interfaces as well, and not remote IPv4 interfaces
Hm... server/libvncserver/sockets.c intentionally only opens an IPv6 socket if you built with IPv6 support. It must be expecting that libc will do the v6-mapped-v4-address thing and support IPv4 connections on the same socket? Did libc's behavior here change recently? Or did we used to build vino with --disable-ipv6? (That fixes this bug, though of course it breaks IPv6 usage completely.)
New bug #463782 was submitted for F10. So this is an old problem (already existing in F8) which is still relevant...
This message is a reminder that Fedora 9 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 9. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '9'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 9's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 9 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Verified that this works in Fedora 11.
*** Bug 463782 has been marked as a duplicate of this bug. ***
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.