DNS/Gateway issue.

[J4zen]

Hi there,

Im running on a fedora 7 distro and am by far, no expert.
After installing Fedora i find myself unable to ping any hosts outside of my own local network.
However.. an nslookup does show it resolves to an IP just fine.

It started by a "fedora = connect: Network is unreachable" message when pinging, it turned out that my 2003server didnt send out a gateway adress in dhcp(which is now fixed).


Heres the output of my nslookup:

[root@localhost ~]# nslookup
> google.com
Server:         192.168.1.100
Address:        192.168.1.100#53

Non-authoritative answer:
Name:   google.com
Address: 64.233.167.99
Name:   google.com
Address: 72.14.207.99
Name:   google.com
Address: 64.233.187.99

My local network is setup as follows:
Gateway: 192.168.1.1 (router which was unable to provide fedora with DNS service)
DNS: 192.168.1.100 (Server2003, setup to provide a DNS service and forward it to 192.168.1.1)
Fedora IP: Via DHCP, 192.168.1.10.

Fedora server is configured to recieve DHCP(static lease) from Server2003, Server2003 will then forward all DNS-service requests to my router(192.168.1.1).

Heres the output from netstat -nr:

[root@localhost ~]# netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
0.0.0.0         192.168.1.1     0.0.0.0         UG        0 0          0 eth0

And lastly, my ifconfig output:

[root@localhost ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:19:DB:CB:5F:11
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::219:dbff:fecb:5f11/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2751 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3062 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:259420 (253.3 KiB)  TX bytes:471590 (460.5 KiB)
          Interrupt:21 Base address:0x800

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:60 errors:0 dropped:0 overruns:0 frame:0
          TX packets:60 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4776 (4.6 KiB)  TX bytes:4776 (4.6 KiB)

Does anyone have any IDEA why i AM able to resolve ip's, but unable to ping or wget/yum?

Thanks in advance, if you need further info.. please tell me

Regards,
J. van Vierzen

[falko]

What's in /etc/resolv.conf? Did you disable SELinux? What's the otput of

iptables -L

?

[J4zen]

Resolv.conf:

nameserver 192.168.1.100

IPTables -L

Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Yes SELinux and the firewall are disabled.

[falko]

Try

nameserver 145.253.2.75
nameserver 193.174.32.18

in /etc/resolv.conf instead.

[J4zen]

Tried it , didnt work.. not even NSLookup works now

:

[root@fedora ~]# nslookup
> google.com
;; connection timed out; no servers could be reached
> www.google.com
;; connection timed out; no servers could be reached

Any idea's?

Thanks for your time

[falko]

This sounds like a firewall issue with your router. Try to modify your router's firewall.

[J4zen]

Right on, i purchased a new router today as the previous one didnt allow the firewall to be disabled withuot turning the NAT service off as well.

Worked as soon as i plugged the network cable in.

Thanks for your support!