Hi, This is a problem which started to show up today. After reboot, sshd failed to listen on my local IPv6 address. I have a static network configuration using the network init script. I have a sshd configuration which defines various ListenAddresses in /etc/ssh/sshd_config, like this: # localhost ListenAddress 127.0.0.1:22 ListenAddress [::1]:22 # local only addresses ListenAddress 192.168.1.1:22 ListenAddress [fc00::1]:22 # external address ListenAddress a.b.c.d:12345 The last time before today I rebooted the machine was 2 days ago. This was right after I updated to the new 3.1.7 kernel via yum. Everything worked fine. Today I installed the last set of updates via yum and rebooted again. This time I was not able to connect to that machine via IPv6. So I tried netstat: $ netstat -tnl | grep :22 tcp 0 0 127.0.0.1:22 0.0.0.0:* LISTEN tcp 0 0 192.168.1.1:22 0.0.0.0:* LISTEN tcp 0 0 ::1:22 :::* LISTEN Where is fc00::1? ifconfig showed clearly that the fc00::1 address was configured and ready. `systemctl restart sshd.service' worked fine and afterwards sshd was listening on fc00::1:22 as well. I had a look into /var/log/secure: 12:32:24 sshd[1360]: Server listening on a.b.c.d port 12345. 12:32:24 sshd[1360]: error: Bind to port 22 on fc00::1 failed: Cannot assign requested address. 12:32:24 sshd[1360]: Server listening on 192.168.1.1 port 22. 12:32:24 sshd[1360]: Server listening on ::1 port 22. 12:32:24 sshd[1360]: Server listening on 127.0.0.1 port 22. Ok, so it was no problem to set up the listening sockets on any other requested IP address, just trying to lsten on fc00::1 failed with "Cannot assign requested address". So what about setting up the network? 12:32:22 avahi-daemon[1092]: Registering new address record for fe80::6250:40ff:fe30:2010 on br0.*. 12:32:22 avahi-daemon[1092]: Joining mDNS multicast group on interface br0.IPv4 with address 192.168.1.1. 12:32:22 avahi-daemon[1092]: New relevant interface br0.IPv4 for mDNS. 12:32:22 avahi-daemon[1092]: Registering new address record for 192.168.1.1 on br0.IPv4. 12:32:22 avahi-daemon[1092]: Registering new address record for a.b.c.d on br0.IPv4. 12:32:22 avahi-daemon[1092]: Withdrawing address record for a.b.c.d on br0. 12:32:22 avahi-daemon[1092]: Registering new address record for a.b.c.d on br0.IPv4. 12:32:22 network[962]: Bringing up interface br0: [ OK ] 12:32:24 avahi-daemon[1092]: Registering new address record for fc00::1 on br0.*. 12:32:24 avahi-daemon[1092]: Withdrawing address record for fe80::6250:40ff:fe30:2010 on br0. So the network is supposed to be up 2 seconds before sshd tries to create a listener on these addresses. There's no good reason that it should fail for the IPv6 address, except that avahi-daemon is apparently doing "something" with the IPv6 address at this time. Could that be the problem? And if so, why? And does anybody know how to workaround this problem? Thanks in advance, Corinna -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
