Re: DNS Error

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You have a problem with DNS name resolution. Most probably there are no nameserver records in the /etc/resolv.conf file on your computer. When you use option 'usepeerdns' in /etc/ppp/options PPP daemon will accept list of DNS servers from your provider and put appropriate 'nameserver' records in file /etc/ppp/resolv.conf. Therefore, you need to copy that file to /etc/resolv.conf when connection is established (you also may use a symbolic link instead of copying the file). If your ISP does not transmit DNS server addresses when your computer connects to ISP, you can ask your ISP about those addresses and manually put them into /etc/reslov.conf. Alternatively, you could run your own DNS server (caching only) on your computer.

Alexey Fadyushin
Brainbench MVP for Linux.
http://www.brainbench.com


Vasco DionМsio wrote:

Hello,

I installed a ADSL Modem that uses unicorn chipset (IceData500), compiled the drivers, and configured pppoe to connect to my ISP Provider. I am using Red Hat 7.3. Everything went fine and I am able to connect to my ISP (when I do a ifconfig I can see the connection and I am able to ping the DNS servers of the ISP). My problem is that if I do a ping with a name I get an error message saying "host unknow". For instance, if I do ping www.google.com I get the error message but if I do ping xxx.xxx.xxx.xxx for the DNS address of the ISP everything goes fine. Could anyone give some hints please. I am new to linux...

Thanks in advance,
Vasco

Here's my /etc/ppp/options

lock
ipparam ppp0
noipdefault
noauth
defaultroute
user "user@xxxxxxxxxx"
noaccomp
noccp
nobsdcomp
nodeflate
nopcomp
novj
lcp-echo-interval 20
lcp-echo-failure 3
maxfail 25
updetach
usepeerdns
holdoff 4
persist

Here's how I connect

#modprobe unicorn_usb_eth PROTOCOL=pppoe ActivationMode=1 VPI=0 VCI=35 ENCAPS=llc-encaps


#ifconfig dsl0 up #pppd pty 'pppoe -I dsl0 -m 1452'

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