The Mac Observer

Skip navigational links

You're viewing an article in TMO's historic archive vault. Here, we've preserved the comments and how the site looked along with the article. Use this link to view the article on our current site:
Protect Your Mac with Tiger's Firewall

TMO Quick Tip - Protect Your Mac with Tiger's Firewall

by , 7:30 AM EDT, April 14th, 2006

Your Mac may be inherently safer on the Internet than its Windows counterparts, but that doesn't mean you don't need to pay attention to your Mac's online safety. Luckily, you don't even have to buy any extra software because Mac OS X comes with an industrial strength firewall ready to keep hackers out of your computer. Your Mac shipped with its firewall deactivated by default, but it's easy to turn on.

  • Choose Apple menu > System Preferences.
  • Click the Sharing Preference Pane.
  • Click the Firewall tab.
  • Click the Start button to turn your firewall on. If the button says Stop, your firewall is already running.


Use Tiger's firewall to protect your Mac from hackers.

Once your Mac's firewall is running, no one without authorization should be able to get at your files wither through your network or through the Internet. In essence, a firewall is like a wall that surrounds your Mac, protecting it from any network or Internet-based attacks.

You can also make your Mac invisible to other computers on the Internet. Here's how:

  • While you are still in the Sharing Preference Pane's Firewall tab, click the Advanced button.
  • Check Block UDP Traffic.
  • Check Enable Stealth Mode.
  • Click the OK button.


Enabling Stealth Mode makes your Mac invisible on the Internet.

Protecting your Mac from unwanted hacking attempts is what a firewall is good at, but it can't keep you safe from virus threats. Although viruses aren't a big threat today, you'll need to install an antivirus application if you want any protection from potential virus, worm, and trojan horse threats. We'll take a look at antivirus software in another Quick Tip.

if you have ideas for Mac related tips that you think other TMO readers might find helpful.

Recent TMO Headlines - Updated July 17th

Wed, 5:27 PM
Apollo Mission Control Restored Just as it Was 50 Years Ago [Video]
Wed, 4:56 PM
Apple Continues to Quietly, Remotely Delete and Install macOS Files
Wed, 2:28 PM
DoNotPay Can Manage Your Free Trials
Wed, 2:27 PM
Explaining the Science Behind Elon Musk's Neuralink
Wed, 2:18 PM
Carpool Karaoke Returning For Another Season
Wed, 2:12 PM
Goldman Sachs Spent $1.3B on Consumer Transformation
Wed, 1:59 PM
Apple Sends Further Zoom Update, As More Flawed Apps Uncovered
Wed, 1:51 PM
Apple's Engineering Focus, iPod Frustration – TMO Daily Observations 2019-07-17
Wed, 1:46 PM
iPadOS, iOS 13 Developer Beta 4 Now Available
Wed, 1:07 PM
Apple Brings Twitter CEO Jack Dorsey in for Employee Talk
Wed, 1:01 PM
The 5G 'Health Hazard' Was a Misinterpretation
Wed, 12:54 PM
Turn Your Favorite Websites Into Searchable Documents: $47.88
  • __________
  • Buy Stuff, Support TMO!
  • Podcast: Mac Geek Gab
  • Podcast: Apple Weekly Report
  • TMO on Twitter!