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Unable to find .com servers, but can find .edu just fine...

By Excellent
Jan 15, 2008
  1. First off, I just want to say that this is a fantastic site with a great, helpful community. It has helped me solve several computer related issues and has saved me lots of time.

    Here goes my problem:

    I've noticed that lately my desktop and my laptop are having issues going to any website ending in .com (google.com). The browser will sit there and load for a minute or 2, then it will say that it can't find the server. However, when I go to any website ending in .edu (i.e. uc.edu) the site comes up rather quickly as it should. I just noticed this in the last couple of days and I just recently installed Norton 360 on both. Could this be causing the issue?

    Could it be my ISP? router? I don't really seem to notice this issue when I take my laptop on campus and use my college's internet. But I've only used it on campus once so far this quarter, I might have gotten lucky. It doesn't seem to have this problem all of the time as well. Sometimes if I reset my router it helps.... I'm a complete loss on this issue. Any input would be greatly appreciated.

    Thanks for your help in advance.

    - Mike
     
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Hi Mike,

    Your problem seems to be in your firewall settings.
    Temporarily disabling your firewall, and testing, should show .com sites load without error.

    As you are a student, it is possible that the Admin who set up your computer has place restrictions on your user account.
    Therefore creating a new Administrator user account should fix those issues, but you may need to approach your computer technical staff at uni (?) and confirm with them first. ie you do not want to upset any user network settings made by your school for you.
     
  3. jobeard

    jobeard TS Ambassador Posts: 9,327   +622

    A laptop! You likely took it to school and the DNS settings are wrong.
    This is NOT a firewall condition :)

    View Network Connections
    find the LAN Connection and right click->Properties
    pull down to TCP/IP -> properties
    be sure DHCP is selected for both IP and DNS
    use the Alternate tab
    clear all data
    save the results

    get a command prompt; enter ipconfig /flushdns

    reboot and enjoy :)
     
  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    DHCP of course
    No server at home !
     
  5. LNCPapa

    LNCPapa TS Special Forces Posts: 4,210   +424

    Could a busted hosts file do this? *.com 127.0.0.1 ? Could be a prank if so.
     
  6. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Yes

    Anything that appears in your HOSTS file without an # at the beginning, apart from the "127.0.0.1 localhost" line, should be viewed with suspicion
     
  7. Excellent

    Excellent TS Rookie Topic Starter

    I really don't quite understand what this means, would somebody please elaborate?
     
  8. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Start -> Run -> C:\windows\system32\drivers\etc

    Double click on "HOSTS" and open with Notepad

    All the # entries mean nothing

    But is there any line without a hash symbol before it ?
    If so just copy and paste the line(s) into here
     
  9. jobeard

    jobeard TS Ambassador Posts: 9,327   +622

    the file has been HACKED! :( :(

    replace it with a good one here

    save it as text without an extension, then mark it READ/ONLY!
     
  10. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Right click on that link and save target
     
  11. LNCPapa

    LNCPapa TS Special Forces Posts: 4,210   +424

    Pay attention to who mentioned this - I was just tossing it out there as a possibility. I don't know that his/her hosts file is actually abnormal.
     
  12. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    What do you mean mentioned it jobeard mentioned it
    You metioned check for *.com in there
     
  13. jobeard

    jobeard TS Ambassador Posts: 9,327   +622

    > *.com 127.0.0.1

    this is a bogus attempt to capture/inhibit all dot com domain access :(

    I believe that the meta-character '*' pattern match is invalid in the HOST file
    and ONLY domain names are valid therein.


    edit:
    For each host a single line should be present with the following information:

    IP_address canonical_hostname [aliases...]

    Fields of the entry are separated by any number of blanks and/or tab characters. Text from a "#" character until the end of the line is a comment, and is ignored. Host names may contain only alphanumeric characters, minus signs ("-"), and periods ("."). They must begin with an alphabetic character and end with an alphanumeric character. Optional aliases provide for name changes, alternate spellings, shorter hostnames, or generic hostnames (for example, localhost).
     
  14. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Example Only by LNCPapa
    Possible the original wording could be clearer here
     
  15. Excellent

    Excellent TS Rookie Topic Starter

    these are the only lines w/o a # sign before it:

    127.0.0.1 localhost
    ::1 localhost
     
  16. Excellent

    Excellent TS Rookie Topic Starter

    Should I still right click this target and save as?

    Thanks a lot everybody, your help is much appreciated.
     
  17. jobeard

    jobeard TS Ambassador Posts: 9,327   +622

    YES! save as HOSTS
     
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