Hi All, I''m experiencing issues with my DomU. Services such as FTP and SSH hang on connect. The login comes up, then there is a big lag before password request is displayed. I''m sure it''s a more general IP issue. Also when I reset my domu the extra IP''s I''ve assigned to it don''t some up. The only way I''ve managed to get them up it to go into Webmin Network Interface->Activated at boot, edit each interface (without making changes) and hit Save and Apply. I''m sure this is all part of the same issue, but I''ve no idea how to track it down :( Connectivity with Dom0 is fine. I think my xen DomU config file is pretty standard:- name = "DomU" uuid = "3982320d-2073-5fa2-3b7c-600318edf3da" memory = 512 vcpus = 2 bootloader="/usr/bin/pygrub" #kernel = "/boot/vmlinuz" #ramdisk = "/boot/initrd.img" on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" disk = [ "tap:aio:/xen/dom1.img,xvda,w", ] vif = [ "bridge=xenbr0" ] Lyle _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Sat, Feb 20, 2010 at 2:45 AM, Lyle <webmaster@cosmicperl.com> wrote:> Services such as FTP and SSH hang on connect. The login comes up, then there > is a big lag before password request is displayed. I''m sure it''s a more > general IP issue.Looks like DNS issue. Those services usually try to resolve connecting IP address to hostnames. If your DNS doesn''t answer it quickly, they seem to hang. There''s an easy test for that though. From domU: - host google.com - host 10.2.1.1 (test several random IP addresses in your network) if the second test takes a long time, then DNS server is your problem> > Also when I reset my domu the extra IP''s I''ve assigned to it don''t some up. > The only way I''ve managed to get them up it to go into Webmin Network > Interface->Activated at boot, edit each interface (without making changes) > and hit Save and Apply.Doesn''t seem to be Xen issue. Are they configured properly?> vif = [ "bridge=xenbr0" ]Try putting static MAC address there. Your switch/router might have a hard time handling new MAC addresses everytime dom0 is restarted. Also, some distros assign new interface names (eth0, eth1, eth2, etc) everytime MAC address change, which might explain why your previous IP address settings doesn''t work. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Lyle wrote:> Hi All, > I''m experiencing issues with my DomU. > > Services such as FTP and SSH hang on connect. The login comes up, then > there is a big lag before password request is displayed. I''m sure it''s > a more general IP issue. > > Also when I reset my domu the extra IP''s I''ve assigned to it don''t > some up. The only way I''ve managed to get them up it to go into Webmin > Network Interface->Activated at boot, edit each interface (without > making changes) and hit Save and Apply. > > I''m sure this is all part of the same issue, but I''ve no idea how to > track it down :( > > Connectivity with Dom0 is fine.Doh! When I adjusted IPTables through Webmin it messed it up. Was just a firewall issue :/ Sorry for bothering you all. Lyle _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users