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Required hosts and ports for Endpoint Protection on MAC OS (On-premises package)

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Article ID: 238386

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Updated On:

Products

Endpoint Security Complete Endpoint Security Endpoint Protection

Issue/Introduction

Symantec Endpoint Protection (SEP) for MAC installation fails on dark network clients or if required hosts and ports are not accessible.(On-premises package)

Cause

Apple products require access to the internet hosts in this article for a variety of services. While SEP installation MAC OS attempting to activate "System Extension" and validate certificates. 

Here's how your devices connect to hosts and work with proxies:

  • Network connections to the hosts below are initiated by the device, not by hosts operated by Apple.
  • Apple services will fail any connection that uses HTTPS Interception (SSL Inspection). If the HTTPS traffic traverses a web proxy, disable HTTPS Interception for the hosts listed in this article.

Environment

Mac in dark network or connection fails due to WSS, HTTPS Interception (SSL Inspection), HTTPS traffic traverses a web proxy. 

Resolution

Make sure your Apple devices can access the hosts listed below.

Access to the following hosts might be required when setting up your device, or when installing, updating, or restoring the operating system.

Hosts Ports Protocol OS Description Supports proxies
albert.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Device activation Yes
captive.apple.com 443, 80 TCP iOS, iPadOS, tvOS, and macOS Internet connectivity validation for networks that use captive portals Yes
gs.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS   Yes
humb.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS   Yes
static.ips.apple.com 443, 80 TCP iOS, iPadOS, tvOS, and macOS   Yes
sq-device.apple.com 443 TCP iOS and iPadOS eSIM activation
tbsc.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS   Yes
time-ios.apple.com 123 UDP iOS, iPadOS, and tvOS Used by devices to set their date and time
time.apple.com 123 UDP iOS, iPadOS, tvOS, and macOS Used by devices to set their date and time
time-macos.apple.com 123 UDP macOS only Used by devices to set their date and time

 

Device Management

Network access to the following hosts might be required for devices enrolled in Mobile Device Management (MDM).

Hosts Ports Protocol OS Description Supports proxies
*.push.apple.com 443, 80, 5223, 2197 TCP iOS, iPadOS, tvOS, and macOS Push notifications Learn more about APNs and proxies.
deviceenrollment.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS DEP provisional enrollment
deviceservices-external.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS  
gdmf.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Used by an MDM server to identify which software updates are available to devices that use managed software updates Yes
identity.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS APNs certificate request portal Yes
iprofiles.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Hosts enrollment profiles used when devices enroll in Apple School Manager or Apple Business Manager through Device Enrollment Yes
mdmenrollment.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS MDM servers to upload enrollment profiles used by clients enrolling through Device Enrollment in Apple School Manager or Apple Business Manager, and to look up devices and accounts Yes
setup.icloud.com 443 TCP iOS and iPadOS Required to log in with a Managed Apple ID on Shared iPad
vpp.itunes.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS MDM servers to perform operations related to Apps and Books, like assigning or revoking licenses on a device Yes

 

Apple School Manager and Apple Business Manager

Network access to the following hosts as well as the hosts in the App Store section is required for full functionality of Apple School Manager and Apple Business Manager.

Hosts Ports Protocol OS Description Supports proxies
*.business.apple.com 443, 80 TCP - Apple Business Manager
*.school.apple.com 443, 80 TCP - Schoolwork Roster service
upload.appleschoolcontent.com 22 SSH - SFTP uploads Yes
ws-ee-maidsvc.icloud.com 443, 80 TCP - Schoolwork Roster service

 

Apple Business Essentials device management

Network access to the following hosts is required for full functionality of Apple Business Essentials device management.

Hosts Ports Protocol OS Description Supports proxies
axm-adm-enroll.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS DEP enrollment server
axm-adm-mdm.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS MDM server
axm-adm-scep.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS SCEP server
axm-app.apple.com 443 TCP iOS, iPadOS, and macOS Used by Apple Business Essentials to view and manage apps and devices

 

Software updates

Make sure you can access the following ports for updating macOS, apps from the Mac App Store, and for using content caching.

macOS, iOS, iPadOS, watchOS, and tvOS

Network access to the following hostnames is required for installing, restoring, and updating macOS, iOS, iPadOS, watchOS, and tvOS.

Hosts Ports Protocol OS Description Supports proxies
appldnld.apple.com 80 TCP iOS, iPadOS, and watchOS iOS, iPadOS, and watchOS updates
configuration.apple.com 443 TCP macOS only Rosetta 2 updates
gdmf.apple.com 443 TCP iOS, iPadOS, tvOS, watchOS, and macOS Software update catalog
gg.apple.com 443, 80 TCP iOS, iPadOS, tvOS, watchOS, and macOS iOS, iPadOS, tvOS, watchOS, and macOS updates Yes
gnf-mdn.apple.com 443 TCP macOS only macOS updates Yes
gnf-mr.apple.com 443 TCP macOS only macOS updates Yes
gs.apple.com 443, 80 TCP iOS, iPadOS, tvOS, watchOS, and macOS iOS, iPadOS, tvOS, watchOS, and macOS updates Yes
ig.apple.com 443 TCP macOS only macOS updates Yes
mesu.apple.com 443, 80 TCP iOS, iPadOS, tvOS, watchOS, and macOS Hosts software update catalogs
ns.itunes.apple.com 443 TCP iOS, iPadOS, and watchOS   Yes
oscdn.apple.com 443, 80 TCP macOS only macOS Recovery
osrecovery.apple.com 443, 80 TCP macOS only macOS Recovery
skl.apple.com 443 TCP macOS only macOS updates
swcdn.apple.com 80 TCP macOS only macOS updates
swdist.apple.com 443 TCP macOS only macOS updates
swdownload.apple.com 443, 80 TCP macOS only macOS updates Yes
swscan.apple.com 443 TCP macOS only macOS updates
updates-http.cdn-apple.com 80 TCP iOS, iPadOS, tvOS, and macOS Software update downloads
updates.cdn-apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Software update downloads
xp.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS   Yes

 

App Store

Access to the following hosts might be required for updating apps.

Hosts Ports Protocol OS Description Supports proxies
*.itunes.apple.com 443, 80 TCP iOS, iPadOS, tvOS, and macOS Store content such as apps, books, and music Yes
*.apps.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Store content such as apps, books, and music Yes
*.mzstatic.com 443 TCP iOS, iPadOS, tvOS, and macOS Store content such as apps, books, and music
itunes.apple.com 443, 80 TCP iOS, iPadOS, tvOS, and macOS   Yes
ppq.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Enterprise App validation

 

Carrier updates

Cellular devices must be able to connect to the following hosts to install carrier bundle updates.

Hosts Ports Protocol OS Description Supports proxies
appldnld.apple.com 80 TCP iOS and iPadOS Cellular carrier bundle updates
appldnld.apple.com.edgesuite.net 80 TCP iOS and iPadOS Cellular carrier bundle updates
itunes.com 80 TCP iOS and iPadOS Carrier bundle update discovery
itunes.apple.com 443 TCP iOS and iPadOS Carrier bundle update discovery
updates-http.cdn-apple.com 80 TCP iOS and iPadOS Cellular carrier bundle updates
updates.cdn-apple.com 443 TCP iOS and iPadOS Cellular carrier bundle updates

 

Content caching

A Mac that provides content caching must be able to connect to the following hosts, as well as the hosts listed in this document that provide Apple content such as software updates, apps, and additional content.

Hosts Ports Protocol OS Description Supports proxies
lcdn-registration.apple.com 443 TCP macOS only Server registration Yes
suconfig.apple.com 80 TCP macOS only

Configuration
xp-cdn.apple.com 443 TCP macOS only Reporting Yes

Clients of macOS content caching must be able to connect to the following hosts.

Hosts Ports Protocol OS Description Supports proxies
lcdn-locator.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Content caching locator service
serverstatus.apple.com 443 TCP macOS only Content caching client public IP determination

 

Apple Developer

Access to the following hosts is required for app notarization and app validation.

App notarization

Starting with macOS 10.14.5, software is checked for notarization before it will run. In order for this check to succeed, a Mac must be able to access the same hosts listed in the Ensure Your Build Server Has Network Access section of Customizing the Notarization Workflow.

Hosts Ports Protocol OS Description Supports proxies
17.248.128.0/18 443 TCP macOS only Ticket delivery
17.250.64.0/18 443 TCP macOS only Ticket delivery
17.248.192.0/19 443 TCP macOS only Ticket delivery

 

App validation

Hosts Ports Protocol OS Description Supports proxies
*.appattest.apple.com 443 TCP iOS, iPadOS, and macOS App validation, Touch ID and Face ID authentication for websites

 

Feedback Assistant

Feedback Assistant is an app used by developers and members of the beta software programs to report feedback to Apple. It uses the following hosts:

Hosts Port Protocol OS Description Supports proxies
bpapi.apple.com 443 TCP tvOS only Provides beta software updates Yes
cssubmissions.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Used by Feedback Assistant to upload files

Yes
fba.apple.com

443 TCP iOS, iPadOS, tvOS, and macOS

Used by Feedback Assistant to file and view feedback

Yes

 

Apple diagnostics

Apple devices might access the following host in order to perform diagnostics used to detect a possible hardware issue.

Hosts Ports Protocol OS Description Supports proxies
diagassets.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Used by Apple devices to help detect possible hardware issues Yes

 

Domain Name System resolution

In order to use encrypted Domain Name System (DNS) resolution in iOS 14, tvOS 14, and macOS Big Sur, the following host will be contacted.

Hosts Ports Protocol OS Description Supports proxies
doh.dns.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Used for DNS over HTTPS (DoH) Yes

 

Certificate validation

Apple devices must be able to connect to the following hosts to validate the digital certificates used by the hosts in this article.

Hosts Ports Protocol OS Description Supports proxies
certs.apple.com 80, 443 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
crl.apple.com 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
crl.entrust.net 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
crl3.digicert.com 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
crl4.digicert.com 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
ocsp.apple.com 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
ocsp.digicert.cn 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation in China
ocsp.digicert.com 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
ocsp.entrust.net 80 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
ocsp2.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Certificate validation
valid.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Certificate validation Yes

 

Apple ID

Apple devices must be able to connect to the following hosts in order to authenticate an Apple ID. This is required for all services that use an Apple ID, such as iCloud, app installation, and Xcode.

Hosts Ports Protocol OS Description Supports proxies
appleid.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Apple ID authentication in Settings and System Preferences Yes
appleid.cdn-apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Apple ID authentication in Settings and System Preferences Yes
idmsa.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Apple ID authentication Yes
gsa.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS Apple ID authentication Yes

 

iCloud

In addition to the Apple ID hosts listed above, Apple devices must be able to connect to hosts in the following domains to use iCloud services.

Hosts Ports Protocol OS Description Supports proxies
*.apple-cloudkit.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.apple-livephotoskit.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.apzones.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services in China
*.cdn-apple.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.gc.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.icloud.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.icloud.com.cn 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services in China
*.icloud.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.icloud-content.com 443 TCP iOS, iPadOS, tvOS, and macOS iCloud services
*.iwork.apple.com 443 TCP iOS, iPadOS, tvOS, and macOS iWork documents
mask.icloud.com 443 UDP iOS, iPadOS, macOS iCloud Private Relay
mask-h2.icloud.com 443 TCP iOS, iPadOS, macOS iCloud Private Relay
mask-api.icloud.com 443 TCP iOS, iPadOS, macOS iCloud Private Relay Yes

 

Additional content

Apple devices must be able to connect to the following hosts to download additional content. Some additional content might also be hosted on third-party content distribution networks.

Hosts Ports Protocol OS Description Supports proxies
audiocontentdownload.apple.com 80, 443 TCP iOS, iPadOS, and macOS GarageBand downloadable content
devimages-cdn.apple.com 80, 443 TCP macOS only Xcode downloadable components
download.developer.apple.com 80, 443 TCP macOS only Xcode downloadable components
playgrounds-assets-cdn.apple.com 443 TCP iPadOS and macOS Swift Playgrounds
playgrounds-cdn.apple.com 443 TCP iPadOS and macOS Swift Playgrounds
sylvan.apple.com 80, 443 TCP tvOS only Apple TV screen savers

 

Firewalls

If your firewall supports using hostnames, you might be able to use most Apple services above by allowing outbound connections to *.apple.com. If your firewall can only be configured with IP addresses, allow outbound connections to 17.0.0.0/8. The entire 17.0.0.0/8 address block is assigned to Apple.

 

HTTP proxy

You can use Apple services through a proxy if you disable packet inspection and authentication for traffic to and from the listed hosts. Exceptions to this are noted above. Attempts to perform content inspection on encrypted communications between Apple devices and services will result in a dropped connection to preserve platform security and user privacy.

 

Content Distribution Networks and DNS Resolution

Some of the hosts listed in this article may have CNAME records in DNS instead of A or AAAA records. These CNAME records may refer to other CNAME records in a chain before ultimately resolving to an IP address. This DNS resolution allows Apple to provide fast and reliable content delivery to users in all regions and is transparent to devices and proxy servers. Apple doesn't publish a list of these CNAME records because they are subject to change. You shouldn't need to configure your firewall or proxy server to allow them as long as you don't block DNS lookups and allow access to the hosts and domains named above. 

Additional Information

Use Apple products on enterprise networks

https://support.apple.com/en-us/HT210060