MacOS updates on port 443

[Narayan7]

I have an iMac on a network. The network is restricted to port 443 for Internet traffic. Unfortunately I cannot perform MacOS software updates. Looking closer it seems that this is because port 80 is blocked. Is it possible to force software updates to use port 443?

 

[chrfr]

I have an iMac on a network. The network is restricted to port 443 for Internet traffic. Unfortunately I cannot perform MacOS software updates. Looking closer it seems that this is because port 80 is blocked. Is it possible to force software updates to use port 443?

No, you can’t change how Apple’s software update system checks for updates. There are several other services which also require port 80 access; blocking port 80 is a strange way to run a network.
The article linked below provides guidance on what’s required to use Apple products on networks:

Use Apple products on enterprise networks - Apple Support

Learn which hosts and ports are required to use your Apple products on enterprise networks.

support.apple.com

 

[iStorm]

I agree, restricting network access to only port 443 seems like an odd way to run a network. Other apps might even use something other than port 80 or 443. FaceTime and iMessage are a couple examples.

If you use FaceTime and iMessage behind a firewall - Apple Support

You can use FaceTime and iMessage with most networks. If you're on a network that's behind a firewall, you might need to enable certain ports.

support.apple.com

I can appreciate wanting to lock down a network, but you still need to know what ports to allow for certain apps and services to function properly.

 

[Narayan7]

Thank you guys. This is very helpful

 

[gilby101]

1) Download the installer package from Apple - the https links are on Mr.Macintosh

2) Use Mist download from Apple.

1 is easiest, 2 more flexible.

If this a Mac owned by your employer, make sure you are complying with your computer usage agreement.