before you send us your feedback. There are similar protocols in Mac OS to be able to share files and print to printers.
For example, a VPN service can use up to four different ports. The Apple Filing Protocol (AFP), formerly AppleTalk Filing Protocol, is a proprietary network protocol, and part of the Apple File Service (AFS), that offers file services for macOS and the classic Mac OS. AFP 3.2 adds support for Access Control Lists and extended attributes in Mac OS X Server 10.4. 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, Kerberos, including Screen Sharing authentication, Date & Time preferences, network time server synchronization, Apple TV network time server sync, Windows Datagram Service, Windows Network Neighborhood, Microsoft Windows file and print services, such as Windows Sharing in macOS, Simple Network Management Protocol (SNMP), AirPort Base Station PPP status or discovery (certain configurations), AirPort Admin Utility, AirPort Express Assistant, Server app, Server Admin, Workgroup Manager, Server Monitor, Xsan Admin, Xsan Admin (OS X Mountain Lion v10.8 and later), Lightweight Directory Access Protocol (LDAP), Apps that look up addresses, such as Mail and Address Book, 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 (, Message Submission for Mail (Authenticated SMTP), Line Printer (LPR), Line Printer Daemon (LPD), Printing to a network printer, Printer Sharing in macOS, AppleShare, Personal File Sharing, Apple File Service, AirPlay, QuickTime Streaming Server (QTSS), streaming media players, Mail (sending mail), iCloud Mail (SMTP authentication), Lights Out Monitoring (LOM) feature of Intel-based Xserve computers, Server Monitor, Open Directory Proxy (ODProxy) (unregistered use), Open Directory, Server app, Workgroup Manager; Directory Services in OS X Lion or earlier, IMAP administration (Mac OS X Server v10.2.8 or earlier), Server serial number registration (Xsan, Mac OS X Server v10.3 – v10.6), macOS Printer Sharing, printing to many common printers, Server administration tools for Mac OS X Server v10.4 or earlier, including AppleShare IP, Server administration tools for Mac OS X Server v10.6 or earlier, including AppleShare IP, Administration of QuickTime Streaming Server, Profile Manager in macOS Server 5.2 and earlier, Network File System (NFS) (version 3 and 4), Apple Remote Desktop 2.0 or later (Reporting feature), Classroom app (command channel), Simple Authentication and Security Layer (SASL), AirPort Utility, AirPort Express Assistant. This allows the server to demultiplex requests to an appropriate AFP session.
See Apple's Developer documentation on AFP Version Differences.. Basically, this protocol is also used by time Machine - macOS backup system. If your firewall doesn't allow you to specify the type of port, configuring one type of port probably configures the other. 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 TCP, the port number is 548. Still earlier versions rely exclusively on AppleTalk. To submit a product bug or enhancement request, please visit the
Contact the vendor for additional information. The maximum share point and file size increased to 8 tebibytes with Mac OS X Server 10.2, and then to 16 tebibytes with Mac OS X Server 10.3.. It registers the AFP server on a well-known data stream port. Apple Filing Protocol (AFP) over TCP — afpovertcp: AppleShare, Personal … The size of the packets is based on the underlying networkâs maximum transmission unit (MTU). RFC documents are maintained by RFC Editor.
It controls access by app, instead of by port. AFP 3.4, introduced in OS X Mountain Lion, includes a minor change in the mapping of POSIX errors to AFP errors.
Learn about TCP and UDP ports used by Apple products such as macOS, macOS Server, Apple Remote Desktop, and iCloud. This chapter describes how the Transmission Control Protocol (TCP) can be used to transport AFP packets efficiently. It provides a one-to-one mapping between the AFP session and the port ID or connection ID maintained by the data stream protocol. AFP versions 3.0 and greater rely exclusively on TCP/IP (port 548) for establishing communication, supporting AppleTalk only as a service discovery protocol. 2. afp://ip_device_or_name_device_in LAN Note: For consistency between ASP and DSI commands, the command code for DSIAttention is 8. Still earlier versions rely exclusively on AppleTalk.
Protocol suites that include a service-locating protocol (Bonjour, for example) can be used to advertise and locate an AFP server. It’s common to see AFP running on TCP port 548. page. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. It replies to multiple outstanding requests in any order. AFP URLs for AppleTalk servers took the form: afp://at/⟨AppleTalk name⟩:⟨AppleTalk zone⟩. Changes made in AFP since version 3.0 represent major advances in the protocol, introducing features designed specifically for Mac OS X clients. AFP currently supports Unicode file names, POSIX and access control list permissions, resource forks, named extended attributes, and advanced file locking. In other words, the requestâs window size may be greater than 1 in length. The application firewall in macOS is not a port-based firewall. You’ll also see a service location protocol, or SLP, that works in conjunction with the AFP. On local area networks, providing AFP services over TCP/IP effectively utilizes the bandwidth of high speed network media such as Fiber Distributed Data Interface (FDDI) and Asynchronous Transfer Mode (ATM). The AFP 2.x family supports both TCP/IP (using Data Stream Interface) and AppleTalk for communication and service discovery. Copyright © 2012 Apple Inc. All Rights Reserved. AFP is located in the application and presentation layers of the AppleTalk protocol stack.  These AFP implementations relied on version 1.x or 2.x of the protocol. Some services might use more than one of these ports. AFP 3.2+ was introduced in Mac OS X Leopard and adds case sensitivity support and improves support for Time Machine (synchronization, lock stealing, and sleep notifications). In the output of Terminal commands, the port number might be replaced by this Service Name, which is the label listed in /etc/services. The number of a Request for Comment (RFC) document that defines the service or protocol. Copyright © 2020 Apple Inc. All rights reserved. Many third-party AFP implementations use AFP 2.x, thereby supporting AppleTalk as a connection method.
Bug Reporter Maximum share point size is at least 16 tebibytes, although Apple has not published a limits document for Mac OS X Server 10.4.
Apple makes no representations regarding third-party website accuracy or reliability. Many third-party AFP implementations use AFP 2.x, thereby supporting AppleTalk as a connection method. In Mac OS X 10.4, users can share the contents of their Public folders by checking Personal File Sharing in the Sharing section of System Preferences. AFP 3.1 was introduced in Mac OS X Server version 10.2. Notable changes included support for Kerberos authentication, automatic client reconnect, NFS resharing, and secure AFP connections via Secure Shell (SSH).
Other literature may refer to AFP as "AppleShare", the name of the Mac OS 9 (and earlier) AFP client. A layer known as the Data Stream Interface (DSI) is used to provide AFP services over TCP. Your input helps improve our developer documentation.  (Note that the maximum file size changed from version 2.2, described above.)
It uses a request/response model that supports multiple outstanding requests on any given connection.
In client operating systems, AFP was called "Personal File Sharing", and supported up to ten simultaneous connections. It maintains some state information for every open client connection. When a user mounts a remote volume over TCP, the type of network over which the volume is mounted is completely transparent to the user. This is usually running on TCP port 427 and UDP port 427 as well. In Mac OS X Tiger, users can connect to AFP servers by browsing for them in the Network globe or entering an AFP Uniform Resource Locator (URL) into the Connect to Server dialog. 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. In macOS, AFP is one of several file services supported, with others including Server Message Block (SMB), Network File System (NFS), File Transfer Protocol (FTP), and WebDAV. It allows the AFP server to send and receive large packets. AFP URLs take the form: afp://⟨server⟩/⟨share⟩, where ⟨server⟩ is the server's IP address, Domain Name System (DNS) name, or Bonjour name, and ⟨share⟩ is the name of the share point. 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. iCloud DAV Services (Contacts, Calendars, Bookmarks), Bonjour, AirPlay, Home Sharing, Printer Discovery, Can be enabled manually in OS X Lion Server (previously enabled by default for ARD 2.0 Database), Apple Remote Desktop 2.0 or later (Observe/Control feature), RTSP (unregistered use), Automatic Router Configuration Protocol (ARCP), Also JBOSS HTTP in Mac OS X Server 10.4 or earlier, pcastagentd (such as for control operations and camera), Mac OS X Server v10.5 or later (JBOSS HTTPS in Mac OS X Server 10.4 or earlier), Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP), Messages (Audio RTP, RTCP; Video RTP, RTCP).
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