Find the answer to your Linux question:
Results 1 to 3 of 3
If your really good, can you answer my question? I have the typical home setup: a router to the internet and internal network with various computers on it. All the ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Feb 2005
    Posts
    4

    How good of a network troubleshooter are you?


    If your really good, can you answer my question?
    I have the typical home setup: a router to the internet and internal network with various computers on it. All the internal computers can access the internet except one Linux box.
    If I type `ping yahoo.com` it will resolve the IP
    If I type `traceroute yahoo.com` it will start tracing the route.
    When I type `wget yahoo.com` to responds 'failed:No route to host'
    This box runs a web server and the router is configured to forward ports to the box. The web server will respond and work perfecty if computers connect from the outside world.
    I can connect to internal machines without a problem.
    If I use nmap and do a syn scan on an open internet port it declares that it is open, however if i do a tcp connect scan to the same port it declares that it is filtered.
    I have replaced network cards and routers, to no avail.
    I'm stumped as to what to try next. If anyone has any suggestions, I would be very greatful.

  2. #2
    Linux Guru loft306's Avatar
    Join Date
    Oct 2003
    Location
    The DairyLand
    Posts
    1,666
    well if you scan yourself with nmap over the inet back to your box you will get bogus info!
    on the wget thing i dunno i was able to wget yahoo.com's index.html
    ~Mike ~~~ Forum Rules
    Testing? What's that? If it compiles, it is good, if it boots up, it is perfect. ~ Linus Torvalds
    http://loft306.org

  3. #3
    Just Joined!
    Join Date
    Feb 2005
    Posts
    4

    nmap

    I actually have run nmap on the borked box and scanned a known good box on the internet.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •