Fedora Core3: Problem in connecting internet

asifqaiyum · 05-27-2005, 04:55 AM

Hi everyone there,

Here is my system report.
Intel Pentium4
OS: Linux Fedora Core3 and WinXP

I am facing problem in connecting internet through gateway in linux. I have tried everything almost but failed. The following is the content of the file useful to you for identifying the problem.

file: /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
BOOTPROTO=none
BROADCAST=192.168.1.255
NETWORK=192.168.1.0
NETMASK=255.255.255.0
IPADDR=192.168.1.26

file: /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=asifqa.abacus

Remember, I can ping the other system in my LAN successfully, but cann't connect internet. I can ping my gateway as well.

The DSN setting is also fine, but nslookup command does not work.

I have used system-config-network command to perform all settings.

Plz help me as it is really bothering me.

Thanks in advance

Asif Qaiyum

fancypiper · 05-27-2005, 05:21 AM

Are your ISPs nameservers listed in /etc/resolv.conf?

Code:

; generated by /sbin/dhclient-script
nameserver 205.244.112.20
nameserver 206.74.254.2
nameserver 207.40.113.20
nameserver 204.116.57.2

Is /etc/hosts correct?

Code:

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       uilleann        localhost.localdomain   localhost
192.168.0.1     modem
192.168.0.2     bones
192.168.0.3     tinwhistle
192.168.0.4     uilleann

asifqaiyum · 05-27-2005, 05:33 AM

yes, the /etc/resolve.cnf has following contents:

; generated by /sbin/dhclient-script
nameserver 202.147.176.40
nameserver 202.147.176.41

i think so, these are the DNS servers, i have also set in xp

and the contents of /etc/hosts is:
127.0.0.1 localhost.localdomain asifqa localhost
192.168.1.25 proto
192.168.1.20 salam

proto and salam is the systems on my local network;

Thanks for your reply

Looking forward to your reply

Asif Qaiyum

fancypiper · 05-27-2005, 05:42 AM

Can you identify the bottleneck with traceroute?

Code:

Fri May 27 06:40 AM root@uilleann ~ # traceroute yahoo.com
traceroute: Warning: yahoo.com has multiple addresses; using 66.94.234.13
traceroute to yahoo.com (66.94.234.13), 30 hops max, 38 byte packets
 1  208-34-232-1.skybest.com (208.34.232.1)  23.916 ms  26.618 ms  20.621 ms
 2  host73.sprintnetops.net (207.14.228.73)  22.140 ms  21.714 ms  19.990 ms
 3  sl-gw21-rly-5-0-TS7.sprintlink.net (160.81.38.209)  35.960 ms  35.754 ms  36 .039 ms
 4  sl-bb24-rly-3-0.sprintlink.net (144.232.14.53)  35.895 ms  35.782 ms  40.124  ms
 5  sl-st22-ash-6-0.sprintlink.net (144.232.20.189)  39.766 ms  41.044 ms  38.44 7 ms
 6  sl-st22-ash-14-0.sprintlink.net (144.232.29.204)  37.961 ms  41.571 ms  75.8 22 ms
 7  4.68.127.209 (4.68.127.209)  92.454 ms  60.454 ms  39.454 ms
 8  ae-1-55.bbr1.Washington1.Level3.net (4.68.121.129)  44.369 ms  37.832 ms  38 .009 ms
 9  ae-0-0.bbr2.SanJose1.Level3.net (64.159.1.130)  107.870 ms as-0-0.bbr1.SanJo se1.Level3.net (64.159.1.133)  107.857 ms ae-0-0.bbr2.SanJose1.Level3.net (64.15 9.1.130)  107.797 ms
10  ge-11-1.ipcolo3.SanJose1.Level3.net (4.68.123.107)  107.911 ms ge-10-0.ipcol o3.SanJose1.Level3.net (4.68.123.11)  132.006 ms ge-10-2.ipcolo3.SanJose1.Level3 .net (4.68.123.139)  119.968 ms
11  unknown.Level3.net (64.152.69.30)  119.927 ms  128.350 ms  127.893 ms
12  vl42.bas1-m.scd.yahoo.com (66.218.82.226)  142.433 ms UNKNOWN-66-218-82-230. yahoo.com (66.218.82.230)  146.381 ms vl42.bas1-m.scd.yahoo.com (66.218.82.226)  160.868 ms
13  * * *
14  *

asifqaiyum · 05-27-2005, 05:49 AM

when i run 'traceroute yahoo.com'; it returned:

traceroute: unknown host yahoo.com

nslookup command also failed.

What to do?

Will it be possible for you to be online in yahoo or msn.....

My id is asifqaiyum@yahoo.com or asifqaiyum@hotmail.com....by the way

I am very disappointed with this situation.

Thanks in advance

Regards,
Asif Qaiyum

fancypiper · 05-27-2005, 05:53 AM

Sorry, I am out of ideas, unless your gateway has you blocked.

Mine worked out of the box on my install, but I don't use a gateway.

uma mahesh · 08-15-2007, 09:49 AM

please help me out, i am suffering from same problem.

uma mahesh · 08-15-2007, 09:49 AM

my email id is echo_mahesh@yahoo.co.in

alexander_bosakov · 08-15-2007, 01:45 PM

Try to "ping" or better "traceroute" to some host given by IP, instead by host name. If it works, then your problem is in the name resolution - either you incorrectly set your namerservers, or they are not working correctly. But given the fact, that you have 4 of them, it's improbable all of them to be down. So, I suppose the problem is in the router and "traceroute" will fail after the gateway. Check if "ping" to a remote IP gives "Network unreachable", your router's NAT settings, the cables, the firewall settings (particularly the DNS service port), in this order.