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SAVE $1000 Sony a9 Mirrorless

SAVE $300 Apple 15.4" MacBook Pro with To…
SAVE $1200 Apple 15.4" MacBook Pro with To…
SAVE $600 Apple 15.4" MacBook Pro with To…
SAVE $600 Sony A8F-Series 65"-Class HDR U…
SAVE $400 Sony X900F Series 65"-Class HDR…
SAVE $400 Sony X830F Series 70"-Class HDR…
SAVE $800 LG C8PUA Series 65"-Class HDR U…
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Upgrade the memory of your 2018 Mac mini up to 64GB

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OWC Thunderbolt 3 Dock
Must-have expansion for iMac/MacBook Pro/Mac mini
Thunderbolt 3 • USB 3 • USB-C • Gigabit Ethernet • Dual Thunderbolt 3 Ports
4K Support • Mini Display Port • Analog sound in/out • Optical sound out
Works on any Mac with Thunderbolt 3

MPG discussion of OWC Thunderbolt 3 Dock

View Port Expansion wish list

Disable Incoming Internet Connections

Last updated 2011-06-05 - Send Feedback
Related: how-to, security

Enabling the Mac OS X Firewall.

Enable the Mac OS X Firewall

If you are not using File Sharing, click the Advanced… button and disable all incoming connections.

Advanced options for the Mac OS X Firewall

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B&H Deal Zone • Deals by Brand/Category/Savings
Deals expire in 9 hours unless noted. Certain deals may last longer.
Sony Mirrorless wish list • Deals on Sony
$2199 SAVE $700 = 24.0% Apple 13.3" MacBook Pro with Touch Bar (Mid 2017, Space Gray) in Computers: Apple Macs	$2399 SAVE $600 = 20.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2017, Space Gray) in Computers: Apple Macs	$2499 SAVE $900 = 26.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2017, Space Gray) in Computers: Apple Macs	$2999 SAVE $1200 = 28.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2017, Space Gray) in Computers: Apple Macs	$2499 SAVE $300 = 10.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2018, Space Gray) in Computers: Apple Macs	$6699 SAVE $500 = 6.0% Apple 27" iMac Pro with Retina 5K Display (Late 2017) in Computers: Apple Macs
$1599 SAVE $250 = 13.0% Canon EOS 7D Mark II DSLR Body with W-E1 Wi-Fi Adapter in Cameras: DSLR	$599 SAVE $300 = 33.0% Canon EOS M6 Mirrorless with 15-45mm Lens (Silver) in Cameras: Mirrorless	$299 SAVE $140 = 31.0% $76 FREE ITEMS Dracast S-Series Plus Daylight LED1000 Panel with V-Mount Batter… in Lighting: LED	$199 SAVE $100 = 33.0% Electro-Voice R300-HD Handheld Wireless Microphone System (Band… in All Other Categories	$10 SAVE $10 = 50.0% ExpoImaging Rogue Safari DSLR Pop-Up Flash Booster in All Other Categories	$1099 SAVE $500 = 31.0% FUJIFILM X-T2 Mirrorless in Cameras: Mirrorless
$1599 SAVE $300 = 15.0% FUJIFILM 100-400mm f/4.5-5.6 XF R LM OIS WR in Lenses: Mirrorless	$289 SAVE $210 = 42.0% LG 27UD68-P 27" 16:9 4K UHD IPS Monitor in Computers: Displays	$2697 SAVE $800 = 22.0% LG C8PUA Series 65"-Class HDR UHD Smart OLED TV in Electronics: Televisions	$3197 SAVE $800 = 20.0% LG E8PUA Series 65"-Class HDR UHD Smart OLED TV in Electronics: Televisions	$5995 SAVE $1500 = 20.0% Leica M-P (Typ 240) Digital (Silver Chrome) in Cameras: Mirrorless	$547 SAVE $300 = 35.0% Nikon D3400 DSLR with 18-55mm and 70-300mm Lenses in Cameras: DSLR
$797 SAVE $350 = 30.0% $59 FREE ITEMS Nikon D5600 DSLR with 18-55mm and 70-300mm Lenses in Cameras: DSLR	$999 SAVE $200 = 16.0% Olympus 25mm f/1.2 M.Zuiko Digital ED PRO in Cameras: Mirrorless	$75 SAVE $45 = 37.0% On-Stage UTC2200 Utility Cart in Lighting: Cases	$498 SAVE $500 = 50.0% Panasonic Lumix DMC-GX85 Mirrorless with 12-32mm and 45-150mm Le… in Cameras: Mirrorless	$598 SAVE $100 = 14.0% Panasonic 14-140mm f/3.5-5.6 Lumix G Vario ASPH. POWER O.I.S. in Lenses: Mirrorless	$5497 SAVE $1500 = 21.0% Pentax 645Z Medium Format DSLR in Cameras: Medium Format
$160 SAVE $115 = 41.0% Porta Brace Soft Case for Assembled Cine-Style Camera in All Other Categories	$73 SAVE $30 = 29.0% Samsung 500GB 860 EVO SATA III 2.5" Internal SSD in Computers: Drives and Storage	$1099 SAVE $300 = 21.0% $249 FREE ITEMS Sigma 70-200mm f/2.8 EX DG APO OS HSM in Lenses: DSLR	$899 SAVE $100 = 10.0% Sigma dp0 Quattro in Cameras: Point and Shoot	$3198 SAVE $600 = 15.0% Sony A8F-Series 65"-Class HDR UHD Smart OLED TV in Electronics: Televisions	$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless
$1598 SAVE $400 = 20.0% Sony X830F Series 70"-Class HDR UHD Smart LED TV in Electronics: Televisions	$1598 SAVE $400 = 20.0% Sony X900F Series 65"-Class HDR UHD Smart LED TV in Electronics: Televisions	$900 SAVE $383 = 29.0% ZEISS 28mm f/2.0 Distagon T* Lens with ZE Mount in Lenses: DSLR	$999 SAVE $700 = 41.0% ZEISS 25mm f/2.0 Distagon T* ZE in Lenses: DSLR	$1083 SAVE $200 = 15.0% ZEISS 28mm f/2.0 Distagon T* Lens with ZF.2 Mount in Lenses: DSLR	$230 SAVE $370 = 61.0% ezviz BN-1424A1 4-Channel 1080p NVR with 1TB HDD and 4 1080p Out… in All Other Categories
$280 SAVE $420 = 60.0% ezviz BN-1824A2 8-Channel 1080p NVR with 2TB HDD and 4 1080p Out… in All Other Categories	$450 SAVE $550 = 55.0% ezviz BN-1G28A3 16-Channel 1080p NVR with 3TB HDD and 8 1080p Ou… in All Other Categories