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. 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)
-----------
ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:04:23:C3:C4:FE
inet addr:205.215.68.74 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::204:23ff:fec3:c4fe/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:929466 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:255987202 (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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0xecc0 Memory:df9e0000-dfa00000
eth1 Link encap:Ethernet HWaddr 00:04:23:C3:C4:FF
inet addr:205.215.68.75 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::204:23ff:fec3:c4ff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:82354 errors:0 dropped:0 overruns:0 frame:0
TX packets:54663 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8731671 (8.3 Mb) TX bytes:71564782 (68.2 Mb)
Base address:0xec80 Memory:df9c0000-df9e0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:28411 errors:0 dropped:0 overruns:0 frame:0
TX packets:28411 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:57095159 (54.4 Mb) TX bytes:57095159 (54.4 Mb)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
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
--------
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 *
--------------
Thanks in advance for any help.
John
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Received on Sat Jan 14 00:25:36 2006