Gottfried Szing wrote:
David wrote:
I'm just building a brand new Ubuntu server box. Unfortunately I put
in the wrong address for the nameserver so I changed it manually
(edited /etc/resolv.conf and /etc/network/interfaces) and now if I
restart networking I lose the eth0 connection completely! ie,
ifconfig only shows loopback.
If I completely reboot the machine, eth0 comes back and works fine
until the next time I restart networking :(
Can anyone suggest what I'm doing wrong?
disclaimer: AFAIK is ubuntu very similar to debian, so this
suggestions might not work if the differences between debian and
ubuntu are to big.
the network scripts utilizes the commands ifup and ifdown (located in
/sbin). so you can try to call the commands ifup/ifdown directly and
to turn on the verbose-mode.
e.g. as root
$ ifdown -v eth0
$ ifup -v eth0
Also these 'ifdown' and 'ifup' scripts take the ff file as parameter:
'ifcfg-eth0' and so you must ensure the contents are in order.
For example,
DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.1.255
IPADDR=192.168.1.254
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
TYPE=Ethernet
because the network-script does more than just bringing up the
interfaces, you could also run the network script in debug mode and
check the output for possible error messages.
$ bash -x /etc/init.d/network restart
hth, gottfried
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