On Fri January 13 2006 18:19, John Alberts wrote: > Hi all. I'm using vserver on a Gentoo machine. I originally tried to get > some help on the gentoo-vserver irc channel; however, I think we must all > have opposite schedules. > > Anyway, I am using Gentoo for my host machine and also Gentoo as the guest > os. The guest os runs Apache2 and MySQL and it works well for a while (5, 6 > hours). After a while I am unable to connect to the guest os. From the > host os, I can reach the guest os (ping, browse web page using links, etc), > but not from outside the host os. If I go into the guest os using vserver > myguest enter, the only fqdn i can ping is the one for the host os the is in > my hosts file. No other fqdn's work. > Is DNS accessible on both nic cablings? Could be the resolver is trying the nic/cable setup that does not reach any name server.
> If I ping a known working ip address, > everything starts working again! I have no idea what this means or how to > fix it. As a temporary solution, just to keep my guest os working, I put a > cron job that pings 2 different servers every half hour. > I think it's probably a routing problem, but I'm not sure what to do. My > host has 2 gigabit nics, both on the same subnet. > > Here is my ifconfig -a and route from my host os: (route hangs a while and > then finally prints the output below) > The delay in route response is probably DNS lookup time (failing and retrying) See if there is a difference in: "route " and "route -n" See below > ----------- > ifconfig -a > > route > > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 205.215.68.0 * 255.255.255.0 U 0 0 0 eth0 > 205.215.68.0 * 255.255.255.0 U 0 0 0 eth1 > loopback * 255.0.0.0 U 0 0 0 lo > default 205.215.68.254 0.0.0.0 UG 0 0 0 eth0 > default 205.215.68.254 0.0.0.0 UG 0 0 0 eth1 > Note there is no name resolution for names not in '/etc/hosts' > -------- > > Here is the ifconfig -a and route from inside my guest os: > ---------- > ifconfig -a > eth0 Link encap:Ethernet HWaddr 00:04:23:C3:C4:FE > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:929890 errors:0 dropped:0 overruns:0 frame:0 > TX packets:981291 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:256023685 (244.1 Mb) TX bytes:1085603257 (1035.3 Mb) > Base address:0xecc0 Memory:df9e0000-dfa00000 > > eth0:100 Link encap:Ethernet HWaddr 00:04:23:C3:C4:FE > inet addr:205.215.68.100 Bcast:205.215.68.255 Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:929890 errors:0 dropped:0 overruns:0 frame:0 > TX packets:981291 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:256023685 (244.1 Mb) TX bytes:1085603257 (1035.3 Mb) > Base address:0xecc0 Memory:df9e0000-dfa00000 > > route > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 205.215.68.0 * 255.255.255.0 U 0 0 0 eth0 > 205.215.68.0 * 255.255.255.0 U 0 0 0 * > loopback * 255.0.0.0 U 0 0 0 * > default 205.215.68.254 0.0.0.0 UG 0 0 0 eth0 > default * 0.0.0.0 UG 0 0 0 * > -------------- > Same here. What is the search order in /etc/host.conf? What name services in /etc/resolv.conf? What are the service providers for 'hosts:' in /etc/nsswitch.conf Duh... Which libc version is handling the above? Mike > Thanks in advance for any help. > > John > _______________________________________________ Vserver mailing list [email protected] http://list.linux-vserver.org/mailman/listinfo/vserver
