router dhcp and dnsmasq hosts resolotion problem?

shams · 08-19-2013, 03:54 AM

I am running debian wheezy and use the dnsmasq for my local web and mails server, recently i got the D-link Wireless N 300 ASDL2+Modem Router, the router is connected to eth0 of the debian box, the debian box get it is private ip and default gateway 192.168.1.1 from the router dhcp the router ip is 192.168.1.1.
The problem is i cannot reach the outside internet:

Quote:

ping google.com
Unknown host google.com

these are some files:

Quote:

cat /etc/resolv.conf
nameserver 127.0.0.1

Quote:

cat /etc/hosts
127.0.0.1 localhost

Quote:

cat /var/run/dnsmasq/resolv.conf
nameserver 192.168.1.1

I also has ubuntu 12.10 in the same pc, i didn't touch the default configurations of ubuntu the internet is working fine wih the same above router.

eSelix · 08-28-2013, 06:05 PM

Show you routing table, ip, check firewall

Code:

ifconfig -a
iptables -L
route -n

It should show something like that

Code:

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0

Can you ping router and external IP?

Code:

ping 192.168.1.1
ping 217.30.152.149

If yes, then problem will be DNS.

Check that your DNS is working, for example

Code:

nmap -PN -p 53 127.0.0.1
nmap -PN -p 53 192.168.1.1
or
dig @127.0.0.1 google.com
dig @192.168.123.1 google.com

shams · 08-29-2013, 12:51 PM

Thanks for reply, i just changed from the dialup connection to the ADSL router so after some work i configured the system now working fine.