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Old 06-28-2001, 03:16 PM   #1
morbius
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Unhappy Hardware modem not working????


I have a 33600 bps modem that is fully compatible with Linux. I tried to connect to the Internet with it, but it loggs me on the network and from there I cant load a g** d*** web page, because it says : "Could not locate remote server". That means that it doesnt receive a single byte, except for my user ID and password to the ISP. Beside that, it's like i didn't even dial. Nothing happens. Any idea why?
 
Old 06-28-2001, 03:19 PM   #2
trickykid
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can you ping IP addresses, it might be having a problem with the DNS servers.
 
Old 06-28-2001, 04:02 PM   #3
mikez
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i sorta have the same problem as you. I can connect and log in...but when i want to log on aol im or go to a webpage, it shows that i am not connected. I dont know what the problem could be. I get disconnected all the time with my linux box for some reason. On my windows 98 box, I can stay connected for ever...hmmm
 
Old 06-28-2001, 10:28 PM   #4
yogotie
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hmm...sounds like it could be the firewall on your linux machine.

if you are running RedHat the I'll bet that that is your problem. Anyway just login as root or su and do ipchains -L and if you get a list of stuff then those are all the rules for the fire wall. If the incoming is set to Deny then Linux is not alowing anything to get to your machine.

you can flush all the rules by usind ipchains -F. if you need more info look at the man pages.

If you are using mandrake loadup your favorite window manager and use gfcc which will the ipchains rules. You can download it for RedHat too.
 
Old 06-28-2001, 11:15 PM   #5
DavidPhillips
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Try this

Well the problems you are having are non specific, so I would go to the link, it covers everything.



http://axion.physics.ubc.ca/ppp-linux.html





Could be DNS is not setup, check to see if nameserver is in resolv.conf.

And check to see that default route is being set by typing route -n



Last edited by DavidPhillips; 06-28-2001 at 11:21 PM.
 
Old 06-30-2001, 01:09 AM   #6
mikez
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my dns works fine and the nameservers from my isp work fine on my win98 box...i dont know what it could be. I constantly get disconnected from the net.
 
Old 07-01-2001, 12:28 AM   #7
DavidPhillips
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Did you check out the howto in link above?

It is very well written and will explain a very simple method of troubleshooting viewing the debug messages in real time using tail. Very simple procedures for building your chat scripts, etc.

You can test DNS by using dig..

Dig www.anywhere.com

should return ip addresses for the website and show the DNS server near the bottom of the output.



it says : "Could not locate remote server".

Sounds like it might be a default route problem.

Pinging an address on the internet would also verify routing, while bypassing DNS.


Open a terminal and run trafshow or even tcpdump (shows more info), or both in seperate terminals. Look for problems like destination unreachable messages. They will also indicate ipaddresses that are incoming to and outgoing from your machine, and ports they are on, protocal, etc.

Flush ipchains / iptables to see if you are blocked by firewall.

Are you using squid, or any redirects, or proxy server?


Last edited by DavidPhillips; 07-01-2001 at 12:37 AM.
 
  


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