No HTTP access

[Dragon_5]

This is gonna be something simple I hope :- Problem is I am unable to access web pages on the net. I can access all my local network, router settings etc, all othere machines ( both Linux and Windows ) can access the net, all router settings are the same for both Linux machines yet machine two can't load web pages, have even tried turning firewall off. I can Putty in to the machine from the lan also.

Machine :- Dell PE2400 ( onboard NI and PCI NIC )
Linux :- RH Enterprise Linux 3 ( tried RH5 as well )
Router :- Thomson Speedtouch

have matched all the settings I can think of with those of the working machine.

can anyone help


Mike

[nikunjb]

Is it able to resolve domain names? Check /etc/resolv.conf if its the same as others?

[Dragon_5]

Yep it was unable to resolve domain names, will check the conf when I get in from work and let you know

many thanks for response

Mike

[Dragon_5]

have tried the resolve.conf , problem not there , tried all the settings I could find to no avail.

I have now reinstalled Linux ( Fedora Core 5 this time ) and this version does not give internet access, I get full access to the other machines on the network, and to the broadband router but not out onto the www , all other machines ( linux & windows can access the web ok )

when I try a yum update this is what I get

[root@localhost ~]# yum update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
core                                                                 [1/3]
Cannot find a valid baseurl for repo: core
Error: Cannot find a valid baseurl for repo: core
[root@localhost ~]#

any other suggestions ?

Mike

[nikunjb]

What do you see when you do the following:

'nslookup www.google.com'

Post the output here. Also, do you have the gateway route configured properly? Post output of 'route -n' command and the file /etc/sysconfig/network-scripts/ifcfg-<your ethernet device>

[Dragon_5]

here's what I get for nslookup etc, I'm beginning to think it could be a router problem

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

[root@localhost ~]#
[root@localhost ~]# route -n
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         192.168.1.254   0.0.0.0         UG    0      0        0 eth0
[root@localhost ~]#

and /etc/sysconfig/network-scripts/ifcfg-eth0 is

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=dhcp
~

cheers for the help

Mike

[nikunjb]

So is your router's IP indeed 192.168.1.254? Check the output of same on the other boxes that are able to browse out...

[Dragon_5]

on the Linux machine that has web access I get :-

[root@asterisk ~]# nslookup www.google.com
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
www.google.com  canonical name = www.l.google.com.
Name:   www.l.google.com
Address: 66.102.9.99
Name:   www.l.google.com
Address: 66.102.9.104
Name:   www.l.google.com
Address: 66.102.9.147

[root@asterisk ~]# route -n
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
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth0
0.0.0.0         192.168.1.254   0.0.0.0         UG    0      0        0 eth0
[root@asterisk ~]#

and it's /etc/sysconfig/network-scripts/ifcfg-eth0 is

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=dhcp
USERCTL=yes
IPV6INIT=yes
PEERDNS=no
TYPE=Ethernet

and yep my routers IP address is 192.168.1.254 , does this help ??

Mike

[nikunjb]

Looks like the machine that is able to resolve names has a name server running locally. Can you see the difference and post the /etc/resolv.conf from both machines here? You can try pointing your broken machine's /etc/resolv.conf entry to this machine and see if your name resolution starts working through it.

[Dragon_5]

yep I see the difference in that there is an additional line with an IP address I don't recognise at all. The resolv.conf of the working linux machine is

# generated by NetworkManager, do not edit!

search lan

and the non-working one is

# generated by NetworkManager, do not edit!

search lan


nameserver 10.0.0.138

the IP address here is the setup page on my broadband router, I'm beginning to get confused here. I do appreciate your help

Mike