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If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos. In addition, logging out of Box Drive deletes all of the downloaded content you had marked for offline availability. This clears up hard disk space on your device. This also returns to an online-only state all of the content you have marked for offline availability, and you must repeat the process of marking folders for offline availability.
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Network administrators can use this information to make sure that Mac computers and other Apple devices can connect to services such as the App Store and Apple's software-update servers.
Ports used by Apple products
This is a quick-reference guide showing common examples, not a comprehensive list of ports. This guide is updated periodically with information available at the time of publication.
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Some software might use different ports and services, so it can be helpful to use port-watching software when deciding how to set up firewalls or similar access-control schemes.
Some services might use more than one of these ports. For example, a VPN service can use up to four different ports. When you find a product in this list, search (Command-F) in your browser for that name, then repeat your search (Command-G) to locate all occurrences of that product.
Some firewalls allow selective configuration of UDP or TCP ports with the same number, so it's important to know the type of port you're configuring. For example, NFS can use TCP 2049, UDP 2049, or both. If your firewall doesn't allow you to specify the type of port, configuring one type of port probably configures the other.
| Port | TCP or UDP | Service or protocol name1 | RFC2 | Service name3 | Used by |
|---|---|---|---|---|---|
| 7 | TCP/UDP | echo | 792 | echo | — |
| 20 | TCP | File Transport Protocol (FTP) | 959 | ftp-data | — |
| 21 | TCP | FTP control | 959 | ftp | — |
| 22 | TCP | Secure Shell (SSH), SSH File Transfer Protocol (SFTP), and Secure copy (scp) | 4253 | ssh | Xcode Server (hosted and remote Git+SSH; remote SVN+SSH) |
| 23 | TCP | Telnet | 854 | telnet | — |
| 25 | TCP | Simple Mail Transfer Protocol (SMTP) | 5321 | smtp | Mail (sending email); iCloud Mail (sending email) |
| 53 | TCP/UDP | Domain Name System (DNS) | 1034 | domain | — |
| 67 | UDP | Bootstrap Protocol Server (BootP, bootps) | 951 | bootps | NetBoot via DHCP |
| 68 | UDP | Bootstrap Protocol Client (bootpc) | 951 | bootpc | NetBoot via DHCP |
| 69 | UDP | Trivial File Transfer Protocol (TFTP) | 1350 | tftp | — |
| 79 | TCP | Finger | 1288 | finger | — |
| 80 | TCP | Hypertext Transfer Protocol (HTTP) | 2616 | http | World Wide Web, FaceTime, iMessage, iCloud, QuickTime Installer, Maps, iTunes U, Apple Music, iTunes Store, Podcasts, Internet Radio, Software Update (OS X Lion or earlier), Mac App Store, RAID Admin, Backup, Calendar, WebDAV, Final Cut Server, AirPlay, macOS Internet Recovery, Profile Manager, Xcode Server (Xcode app, hosted and remote Git HTTP, remote SVN HTTP) |
| 88 | TCP | Kerberos | 4120 | kerberos | Kerberos, including Screen Sharing authentication |
| 106 | TCP | Password Server (unregistered use) | — | 3com-tsmux | macOS Server Password Server |
| 110 | TCP | Post Office Protocol (POP3), Authenticated Post Office Protocol (APOP) | 1939 | pop3 | Mail (receiving email) |
| 111 | TCP/UDP | Remote Procedure Call (RPC) | 1057, 1831 | sunrpc | Portmap (sunrpc) |
| 113 | TCP | Identification Protocol | 1413 | ident | — |
| 119 | TCP | Network News Transfer Protocol (NNTP) | 3977 | nntp | Apps that read newsgroups. |
| 123 | UDP | Network Time Protocol (NTP) | 1305 | ntp | Date & Time preferences, network time server synchronization, Apple TV network time server sync |
| 137 | UDP | Windows Internet Naming Service (WINS) | — | netbios-ns | — |
| 138 | UDP | NETBIOS Datagram Service | — | netbios-dgm | Windows Datagram Service, Windows Network Neighborhood |
| 139 | TCP | Server Message Block (SMB) | — | netbios-ssn | Microsoft Windows file and print services, such as Windows Sharing in macOS |
| 143 | TCP | Internet Message Access Protocol (IMAP) | 3501 | imap | Mail (receiving email) |
| 161 | UDP | Simple Network Management Protocol (SNMP) | 1157 | snmp | — |
| 192 | UDP | OSU Network Monitoring System | — | osu-nms | AirPort Base Station PPP status or discovery (certain configurations), AirPort Admin Utility, AirPort Express Assistant |
| 311 | TCP | Secure server administration | — | asip-webadmin | Server app, Server Admin, Workgroup Manager, Server Monitor, Xsan Admin |
| 312 | TCP | Xsan administration | — | vslmp | Xsan Admin (OS X Mountain Lion v10.8 and later) |
| 389 | TCP | Lightweight Directory Access Protocol (LDAP) | 4511 | ldap | Apps that look up addresses, such as Mail and Address Book |
| 427 | TCP/UDP | Service Location Protocol (SLP) | 2608 | svrloc | Network Browser |
| 443 | TCP | Secure Sockets Layer (SSL or HTTPS) | 2818 | https | TLS websites, iTunes Store, Software Update (OS X Mountain Lion and later), Spotlight Suggestions, Mac App Store, Maps, FaceTime, Game Center, iCloud authentication and DAV Services (Contacts, Calendars, Bookmarks), iCloud backup and apps (Calendars, Contacts, Find My iPhone, Find My Friends, Mail, iMessage, Documents & Photo Stream), iCloud Key Value Store (KVS), iPhoto Journals, AirPlay, macOS Internet Recovery, Profile Manager, Dictation, Siri, Xcode Server (hosted and remote Git HTTPS, remote SVN HTTPS, Apple Developer registration), Push notifications (if necessary) |
| 445 | TCP | Microsoft SMB Domain Server | — | microsoft-ds | — |
| 464 | TCP/UDP | kpasswd | 3244 | kpasswd | — |
| 465 | TCP | Message Submission for Mail (Authenticated SMTP) | smtp (legacy) | Mail (sending mail) | |
| 500 | UDP | ISAKMP/IKE | 2408 | isakmp | macOS Server VPN service |
| 500 | UDP | Wi-Fi Calling | 5996 | IKEv2 | Wi-Fi Calling |
| 514 | TCP | shell | — | shell | — |
| 514 | UDP | Syslog | — | syslog | — |
| 515 | TCP | Line Printer (LPR), Line Printer Daemon (LPD) | — | printer | Printing to a network printer, Printer Sharing in macOS |
| 532 | TCP | netnews | — | netnews | — |
| 548 | TCP | Apple Filing Protocol (AFP) over TCP | — | afpovertcp | AppleShare, Personal File Sharing, Apple File Service |
| 554 | TCP/UDP | Real Time Streaming Protocol (RTSP) | 2326 | rtsp | AirPlay, QuickTime Streaming Server (QTSS), streaming media players |
| 587 | TCP | Message Submission for Mail (Authenticated SMTP) | 4409 | submission | Mail (sending mail), iCloud Mail (SMTP authentication) |
| 600–1023 | TCP/UDP | Mac OS X RPC-based services | — | ipcserver | NetInfo |
| 623 | UDP | Lights-Out-Monitoring | — | asf-rmcp | Lights Out Monitoring (LOM) feature of Intel-based Xserve computers, Server Monitor |
| 625 | TCP | Open Directory Proxy (ODProxy) (unregistered use) | — | dec_dlm | Open Directory, Server app, Workgroup Manager; Directory Services in OS X Lion or earlier This port is registered to DEC DLM |
| 626 | TCP | AppleShare Imap Admin (ASIA) | — | asia | IMAP administration (Mac OS X Server v10.2.8 or earlier) |
| 626 | UDP | serialnumberd (unregistered use) | — | asia | Server serial number registration (Xsan, Mac OS X Server v10.3 – v10.6) |
| 631 | TCP | Internet Printing Protocol (IPP) | 2910 | ipp | macOS Printer Sharing, printing to many common printers |
| 636 | TCP | Secure LDAP | — | ldaps | — |
| 660 | TCP | Server administration | — | mac-srvr-admin | Server administration tools for Mac OS X Server v10.4 or earlier, including AppleShare IP |
| 687 | TCP | Server administration | — | asipregistry | Server administration tools for Mac OS X Server v10.6 or earlier, including AppleShare IP |
| 749 | TCP/UDP | Kerberos 5 admin/changepw | — | kerberos-adm | — |
| 985 | TCP | NetInfo Static Port | — | — | — |
| 993 | TCP | Mail IMAP SSL | — | imaps | iCloud Mail (SSL IMAP) |
| 995 | TCP/UDP | Mail POP SSL | — | pop3s | — |
| 1085 | TCP/UDP | WebObjects | — | webobjects | — |
| 1099, 8043 | TCP | Remote RMI and IIOP Access to JBOSS | — | rmiregistry | — |
| 1220 | TCP | QT Server Admin | — | qt-serveradmin | Administration of QuickTime Streaming Server |
| 1640 | TCP | Certificate Enrollment Server | — | cert-responder | Profile Manager in macOS Server 5.2 and earlier |
| 1649 | TCP | IP Failover | — | kermit | — |
| 1701 | UDP | L2TP | — | l2f | macOS Server VPN service |
| 1723 | TCP | PPTP | — | pptp | macOS Server VPN service |
| 1900 | UDP | SSDP | — | ssdp | Bonjour |
| 2049 | TCP/UDP | Network File System (NFS) (version 3 and 4) | 3530 | nfsd | — |
| 2195 | TCP | Apple Push Notification Service (APNS) | — | — | Push notifications |
| 2196 | TCP | Apple Push Notification Service (APNS) | — | — | Feedback service |
| 2197 | TCP | Apple Push Notification Service (APNS) | — | — | Push notifications |
| 2336 | TCP | Mobile account sync | — | appleugcontrol | Home directory synchronization |
| 3004 | TCP | iSync | — | csoftragent | — |
| 3031 | TCP/UDP | Remote AppleEvents | — | eppc | Program Linking, Remote Apple Events |
| 3283 | TCP/UDP | Net Assistant | — | net-assistant | Apple Remote Desktop 2.0 or later (Reporting feature), Classroom app (command channel) |
| 3284 | TCP/UDP | Net Assistant | — | net-assistant | Classroom app (document sharing) |
| 3306 | TCP | MySQL | — | mysql | — |
| 3478–3497 | UDP | — | — | nat-stun-port - ipether232port | FaceTime, Game Center |
| 3632 | TCP | Distributed compiler | — | distcc | — |
| 3659 | TCP/UDP | Simple Authentication and Security Layer (SASL) | — | apple-sasl | macOS Server Password Server |
| 3689 | TCP | Digital Audio Access Protocol (DAAP) | — | daap | iTunes Music Sharing, AirPlay |
| 3690 | TCP/UDP | Subversion | — | svn | Xcode Server (anonymous remote SVN) |
| 4111 | TCP | XGrid | — | xgrid | — |
| 4398 | UDP | — | — | — | Game Center |
| 4488 | TCP | Apple Wide Area Connectivity Service | awacs-ice | ||
| 4500 | UDP | IPsec NAT Traversal | 4306 | ipsec-msft | macOS Server VPN service |
| 4500 | UDP | Wi-Fi Calling | 5996 | IKEv2 | Wi-Fi Calling |
| 5003 | TCP | FileMaker - name binding and transport | — | fmpro-internal | — |
| 5009 | TCP | (unregistered use) | — | winfs | AirPort Utility, AirPort Express Assistant |
| 5100 | TCP | — | — | socalia | macOS camera and scanner sharing |
| 5222 | TCP | XMPP (Jabber) | 3920 | jabber-client | Jabber messages |
| 5223 | TCP | Apple Push Notification Service (APNS) | — | — | iCloud DAV Services (Contacts, Calendars, Bookmarks), Push Notifications, FaceTime, iMessage, Game Center, Photo Stream |
| 5228 | TCP | — | — | — | Spotlight Suggestions, Siri |
| 5297 | TCP | — | — | — | Messages (local traffic) |
| 5350 | UDP | NAT Port Mapping Protocol Announcements | — | — | Bonjour |
| 5351 | UDP | NAT Port Mapping Protocol | — | nat-pmp | Bonjour |
| 5353 | UDP | Multicast DNS (MDNS) | 3927 | mdns | Bonjour, AirPlay, Home Sharing, Printer Discovery |
| 5432 | TCP | PostgreSQL | — | postgresql | Can be enabled manually in OS X Lion Server (previously enabled by default for ARD 2.0 Database) |
| 5897–5898 | UDP | (unregistered use) | — | — | xrdiags |
| 5900 | TCP | Virtual Network Computing (VNC) (unregistered use) | — | vnc-server | Apple Remote Desktop 2.0 or later (Observe/Control feature) Screen Sharing (Mac OS X 10.5 or later) |
| 5988 | TCP | WBEM HTTP | — | wbem-http | Apple Remote Desktop 2.x See also dmtf.org/standards/wbem. |
| 6970–9999 | UDP | — | — | — | QuickTime Streaming Server |
| 7070 | TCP | RTSP (unregistered use), Automatic Router Configuration Protocol (ARCP) | — | arcp | QuickTime Streaming Server (RTSP) |
| 7070 | UDP | RTSP alternate | — | arcp | QuickTime Streaming Server |
| 8000–8999 | TCP | — | — | irdmi | Web service, iTunes Radio streams |
| 8005 | TCP | Tomcat remote shutdown | — | — | — |
| 8008 | TCP | iCal service | — | http-alt | Mac OS X Server v10.5 or later |
| 8080 | TCP | Alternate port for Apache web service | — | http-alt | Also JBOSS HTTP in Mac OS X Server 10.4 or earlier |
| 8085–8087 | TCP | Wiki service | — | — | Mac OS X Server v10.5 or later |
| 8088 | TCP | Software Update service | — | radan-http | Mac OS X Server v10.4 or later |
| 8089 | TCP | Web email rules | — | — | Mac OS X Server v10.6 or later |
| 8096 | TCP | Web Password Reset | — | — | Mac OS X Server v10.6.3 or later |
| 8170 | TCP | HTTPS (web service/site) | — | — | Podcast Capture/podcast CLI |
| 8171 | TCP | HTTP (web service/site) | — | — | Podcast Capture/podcast CLI |
| 8175 | TCP | Pcast Tunnel | — | — | pcastagentd (such as for control operations and camera) |
| 8443 | TCP | iCal service (SSL) | — | pcsync-https | Mac OS X Server v10.5 or later (JBOSS HTTPS in Mac OS X Server 10.4 or earlier) |
| 8800 | TCP | Address Book service | — | sunwebadmin | Mac OS X Server v10.6 or later |
| 8843 | TCP | Address Book service (SSL) | — | — | Mac OS X Server v10.6 or later |
| 8821, 8826 | TCP | Stored | — | — | Final Cut Server |
| 8891 | TCP | ldsd | — | — | Final Cut Server (data transfers) |
| 9006 | TCP | Tomcat standalone | — | — | Mac OS X Server v10.6 or earlier |
| 9100 | TCP | Printing | — | — | Printing to certain network printers |
| 9418 | TCP/UDP | git pack transfer | — | git | Xcode Server (remote git) |
| 10548 | TCP | Apple Document Sharing Service | — | serverdocs | macOS Server iOS file sharing |
| 11211 | — | memcached (unregistered use) | — | — | Calendar Server |
| 16080 | TCP | — | — | — | Web service with performance cache |
| 16384–16403 | UDP | Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) | — | connected, — | Messages (Audio RTP, RTCP; Video RTP, RTCP) |
| 16384–16387 | UDP | Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) | — | connected, — | FaceTime, Game Center |
| 16393–16402 | UDP | Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) | — | — | FaceTime, Game Center |
| 16403–16472 | UDP | Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) | — | — | Game Center |
| 24000–24999 | TCP | — | — | med-ltp | Web service with performance cache |
| 42000–42999 | TCP | — | — | — | iTunes Radio streams |
| 49152–65535 | TCP | Xsan | — | — | Xsan Filesystem Access |
| 49152– 65535 | UDP | — | — | — | |
| 50003 | — | FileMaker server service | — | — | — |
| 50006 | — | FileMaker helper service | — | — | — |
1. The service registered with the Internet Assigned Numbers Authority, except where noted as “unregistered use.”
2. The number of a Request for Comment (RFC) document that defines the service or protocol. RFC documents are maintained by RFC Editor.
3. In the output of Terminal commands, the port number might be replaced by this Service Name, which is the label listed in /etc/services.
FaceTime is not available in all countries or regions.
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The application firewall in macOS is not a port-based firewall. It controls access by app, instead of by port.