Server Connection Problems

**kahuna0789** · November 9th, 2009

Hello all,
I have done a great deal of searching on this issue and I cannot find a solution to my problem that works.

my setup: my server (ubuntu 9.10 server) is directly connected to my linksys router via eth0 (and this is the exact setup this server has been in for the last year... until the hard drive crashed a week ago)

On install when i was asked for network information I chose to manual in order to get a specific address.

The configuration was something like this

Code:

address 192.168.1.10
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
nameserver x.x.x.148 x.x.x.147 127.0.0.1 192.168.1.1

now that it is finished installing I cannot access the internet or even ping my local network addresses.

I have tried verifying /etc/network/interfaces and /etc/resolv.conf which provides the same information

I have also tried to setup a default route using

Code:

route add default gw 192.168.1.1

this does not return an error... but it still does not allow me to access anything on the network

I have also tried setting up eth0 (and others) as dhcp and when I restart /etc/init.d/networking it fails to receive a DHCP response.

Does anyone see anything I have missed?

**BQAggie2006** · November 10th, 2009

Can you post the output of:

Code:

cat /etc/network/interfaces

**kahuna0789** · November 10th, 2009

Here is the file without all of the commented lines

Code:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1

**Iowan** · November 10th, 2009

ifconfig -a and route -n confirm that your manual entries got applied?
The cable is OK?

**kahuna0789** · November 10th, 2009

My cable tester says that the cable is fine

ifconfig -a returns the expected results and route -n returns

Code:

Kernel IP routing table
Destination    Gateway       genmask        Flags    Metric    Ref    Use    Iface
192.168.1.0    0.0.0.0       255.255.255.0  U        0         0      0      eth0
0.0.0.0        192.168.1.1   0.0.0.0        UG       100       0      0      eth0

Note: I'm not sure if it makes a difference but there was a typo in my first post, the server version should have been 9.10 instead of 8.10

**doas777** · November 10th, 2009

ok, can you do an nslookup? your problem may be dns resolution.
I would start by dropping the network and broadcast lines from your interfaces file unless you need them (your values are generic so you don't).

I'm worried about the loopback in your nameserver list. what is in \etc\resolv.conf?
also can you post the ifconfig anyway?

**kahuna0789** · November 10th, 2009

nslookup just hangs, i have removed 192.168.1.1 and the loopback from /etc/resolv.conf so now it just has the two dns addresses i found when i did ipconfig on this computer

i also commented out the network and broadcast lines and restarted networking. No help

the output of ifconfig eth0

Code:

eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST 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)

mac address omitted but the rest is an exact copy

**Iowan** · November 11th, 2009

Firewall running?

**kahuna0789** · November 11th, 2009

I disabled UFW as soon as i started having problems, i probably should have mentioned that earlier.
I'm starting to wonder if maybe I got a bad burn of the ISO because i had to reinstall as soon as i installed the OS the other day because it failed to boot. Luclky reinstalling fixed the boot time issue but this one persists.