Can't access on any of our computers

Discussion in 'Mac Basics and Help' started by GoodtobetheKing, Apr 18, 2011.

  1. GoodtobetheKing, Apr 18, 2011
    Last edited: Apr 18, 2011

    GoodtobetheKing macrumors member

    Aug 19, 2010
    Before I talk about the problem I'm having, I want to state that I'm allowed to access for work.

    With that out of the way....:)

    We can't access youtube on any of our computers on our servers. There's no proxy or firewall in place that would cause me to not be able to access it (I checked the system preferences). I've tried using different web clients (Firefox, Safari, etc.) but they all say they can't access

    Now here's the weird part: I can access youtube on VM Ware. :confused: It worked fine last week but on Friday it stopped being able to access it.

    We're running Mac OS X 10.5.8. Everything is up to date as much as it can be (Flash, JavaScript, etc.). I know we don't have Snow Leopard but that shouldn't be a factor. I've cleared the cache, cookies, and history but nothing has worked.

    My supervisor and I are both confused, any suggestions on how to fix this problem?
  2. Consultant macrumors G5


    Jun 27, 2007
  3. GoodtobetheKing thread starter macrumors member

    Aug 19, 2010
    Sadly, we are a small company and have no IT support. :(
  4. emiljan macrumors 6502


    Jan 25, 2010
    Only thing i can think of is to check the hosts file, which could be blocking

    here are instructions to check the hosts file on osx.

    The hosts file is a text file that maps hostnames to IP addresses.
    Upon typing a url address on the browser, the system is checking if there is a relevant entry on the hosts file and gets the corresponding IP address, else it resolves the IP via the active connection’s DNS servers.
    The hosts file can be edited to block certain hostnames (like ad-serving/malicious hosts), or used for web development purposes, i.e. to redirect domains to local addresses.

    Editing the hosts file
    Editing the hosts file in Mac OS X – Leopard, is a pretty easy task, especially if you are familiar with the terminal.

    Step 1 – Open the
    Either by start typing Terminal on the Spotlight, or by going into Applications -> Utilities -> Terminal.

    Step 2 – Open the hosts file
    Open the hosts by typing on the Terminal that you have just opened:
    1$ sudo nano /private/etc/hosts

    Type your user password when prompted.

    Step 3 – Edit the hosts file
    The hosts file contains some comments (lines starting with the # symbol), as well as some default hostname mappings (e.g. – localhost).
    Simply append your new mappings underneath the default ones. Or edit one of the default values if you know what you are doing!
    You can navigate the file using the arrow keys.

    Step 4 – Save the hosts file
    When done editing the hosts file, press control-o to save the file.
    Press enter on the filename prompt, and control-x to exit the editor.

    Step 5 – Flush the DNS cache
    On Leopard you can issue a simple Terminal command to flush the DNS cache, and have your host file changes to take immediate effect:
    1$ dscacheutil -flushcache

    You can now test your new mapping on the browser!

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