Updates and downloads
configuration.apple.com
configuration.apple.com is the Apple host for Rosetta 2 updates. Apple lists it for macOS only, on port 443.
Short answer
The Apple host that Apple lists for Rosetta 2 updates on macOS.
Block with care
Blocking it can stop Rosetta 2 from installing or updating, so Intel-only apps may not run on a Mac with Apple silicon.
- Matches
configuration.apple.com
A name with *. covers every name under it: *.push.apple.com matches 1-courier.push.apple.com.
What it serves
Apple's enterprise host list names configuration.apple.com in its Software updates section, for “Rosetta 2 updates”.
Rosetta 2 lets a Mac with Apple silicon run apps built for Intel processors. Apple Platform Security describes it.
Apple doesn't say which process contacts this host.
What breaks if you block it
Block with care
Blocking it can stop Rosetta 2 from installing or updating, so Intel-only apps may not run on a Mac with Apple silicon.
What breaks if you block it
- Rosetta 2 updates can't download.
- Intel-only apps may fail to open if Rosetta 2 isn't installed yet.
With Kilobat Pro and the network filter, you can block a host for every app or for one app: in Connections, select a connection and choose Block. Apple’s own services are never blocked by Kilobat’s Protection lists.
Apple’s rules for its hosts
Apple’s list, Use Apple products on enterprise networks, says that devices open these connections, not Apple’s servers. Apple services fail any connection that uses HTTPS interception, so a proxy that inspects TLS should leave Apple’s hosts alone.
If a firewall allows hosts by name, allowing *.apple.com covers most Apple services, Apple says. A firewall that works only with addresses can allow 17.0.0.0/8 for IPv4, and 2403:300::/32, 2620:149::/32 and 2a01:b740::/32 for IPv6.
To see which app on your Mac opened a connection to this host, use Kilobat’s Connections tab, or the agent network log for AI agents.
Sources
- Apple Support: Use Apple products on enterprise networks
- Apple Platform Security: Rosetta 2 on a Mac with Apple silicon
Checked on 1 November 2026.