How to Block and Unblock Internet Sites (On a Mac)

DECIDE WHAT YOUR GOAL REALLY IS IN BLOCKING SITES.Be clear about this up front so you can find the best solution. Is this blocking for you? Is it for your kids? Is it to keep employees off of certain sites? Answer these questions first before stabbing in the blocking-sites-darkness.To block certain types of sites for all users on a computer or system - use OpenDNS.com, see step 2.
To block specific sites one at a time use the terminal command in Step 3.
To log (rather than block) specific sites use covenanteyes.com see Step 4.
To only ALLOW certain sites use the parental controls option, see Step 5.
USE FREE OPEN DNS TO BLOCK CERTAIN TYPES OF SITES FOR ALL USERS.This is a great option for small businesses or households with agreed upon and uniform standards for internet usage. See the resource section for a link. Go to the site (see resource link near the bottom of this page). Click on the 'start using open dns' button. Choose whether you want the blocking to occur at the computer level, the router level, or the server level. Follow the step by step instructions. They have pictures... it really is simple. Best of all, it is FREE!
TO BLOCK SPECIFIC SITES USE THE TERMINAL COMMAND IN MACOSX TO BLOCK THEM ONE AT A TIME.Few people really want to block only one or two sites. This is a wieldy way to provide internet security. But if that is your specific need this is for you. Another ehow article gives the detailed instructions (it's a bit technical) for this process. So it is linked both in the related articles to the right titled 'How to block access to websites in MacOS X' and in the resource link section at the bottom.
TO LOG EVERYTHING YOUR COMPUTERS VIEW, USE COVENANT EYES. This program will log and score every site that is viewed by a computer on which it is installed. It will not allow the internet to run if it is disabled and will send you an alert if it is uninstalled. You set the preferences as to how often to receive reports. Go to covenanteyes.com and click the 'sign up now' button. It will guide you through the process. For around $8 a month this is a relatively cheap option that covers up to three computers.
TO ONLY ALLOW CERTAIN SITES USE PARENTAL CONTROLS. If you are using the Leopard system then you can use the 'Parental Controls' feature found in System Preferences. Click on accounts. Check the box for parental controls. You can click on the content tab and then tick limit access to adult sites. You can also use button to add specific criteria to your block. Alternatively, simply add the specific sites you want allowed to the bookmark bar and type in your administrator's password. Then only those sites can be viewed.
TO UNBLOCK SITES ON A MAC.To remove parental controls simply return to the systems preference, accounts, then parental controls section. Un-click the parental control box. Un-click any content specific controls. To remove open dns.com simply drag the program folder from applications into the trash. Isn't Mac great?
If you worked at the router or server level you will have to undo those steps and reconfigure your system to allow direct access to the internet.To uninstall covenant eyes you need the password to get an uninstall code. It cannot happen late at night.
** See more tips and warnings in the next section below.
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How to Uninstall BlackBerry Desktop for a Macintosh

Double click on the disk image for BlackBerry installation wizard. If it's no longer on your computer, download it from the BlackBerry site (blackberry.com).
Click the 'BlackBerry Desktop Software Uninstaller' from the disk image.
Click 'Continue' when promoted by the uninstaller. If your Mac is password-protected, you're asked for the password at this time. Type in the password and click 'OK.'
Click 'OK' when prompted after the desktop software has been uninstalled.
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How to Sync iCal on Two Macs (21 Steps)

From the Apple menu, select 'System Preferences' and click on the 'MobileMe' icon. If you are running an old version of OSX, the icon will be '.Mac' but it will take you to the MobileMe site at Apple.
Click on the 'Sync' tab.
Check the 'Synchronize with MobileMe' box and select 'Automatically' from the drop-down menu to the right.
To sync iCal, select 'Calendars.'
Log all the computers to be synchronized into your MobleMe account.
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