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Leopard Reference Library
Networking capabilities in Mac OS X include support for the major protocols and services. Developers can gain access to them through sockets and Core Services, as well as through the higher-level Carbon and Cocoa APIs.

Provides a guided introduction to developing network-capable applications for Mac OS X.   Essential information for developers using Apple's networking environment.   API references organized by framework.
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68K Open Transport Code on Power Macintoshes (HTML)
Deprecated - NW48: Explains why running Open Transport 68K code on a PowerPC may not always work.
Carbon Technical Q&As 1997-03-14
Aborting a OTConnect in Progress (HTML)
Deprecated - NW29: Describes the proper way to abort OTConnect, and why after calling OTSndDisconnect you may receive "kOTOutStateErr".
Carbon Technical Q&As 1996-05-14
Accessing HTTPS Proxy Settings (HTML) (日本語 HTML)
QA1234: Describes how to programatically access Secure Web Proxy information.
Carbon, Mac OS X Server Technical Q&As 2003-02-19
Accessing SQL Data in Apple Remote Desktop 2 (HTML)
Learn how to access the PostgreSQL database to help create custom applications.
Mac OS X Server Articles 2005-02-21
Advertising a Bonjour service on a specific set of networking interfaces. (HTML)
QA1513: Explains how to register a Bonjour service only on a specific set of networking interfaces.
Bonjour Technical Q&As 2007-02-12
Allocate and Disk Full Error (HTML) (日本語 HTML)
FL12: Discusses a problem with AFP volumes displaying incorrect free space, and returning disk full errors.
Carbon, Cocoa Technical Q&As 1999-07-21
Apple Filing Protocol Programming Guide (HTML) (PDF)
Describes high-level concepts for Apple Filing Protocol commands.
Darwin, Mac OS X Server Guides 2006-04-04
Apple Filing Protocol Reference (HTML) (PDF)
Describes the Apple Filing Protocol commands.
Darwin, Mac OS X Server Reference 2006-05-23
Apple Remote Desktop Administrator's Guide Version 3.2 (PDF)
Explains how to install and configure Apple Remote Desktop and use it to remotely control and manage client computers.
Mac OS X Server Guides 2007-12-04
Apple Remote Desktop Focus on Task Server (PDF)
Explains how to use Task Server to provide always-on, automated administration of client computers.
Mac OS X Server Guides 2006-08-07
Are the Name Registry device tree nodes unique? (HTML)
Deprecated - HW64: Discusses whether Name Registry nodes copied from the Open Firmware device tree are unique.
Hardware & Drivers Technical Q&As 1999-10-11
AutoUpdater (HTML) (DMG) (ZIP)
This sample demonstrates Cocoa networking using the NSURL loading classes, NSURLConnection and NSURLDownload.
Cocoa Sample Code 2005-06-01
Availability of Quartz Composer Patches in Web Kit (HTML)
QA1505: Details which Quartz Composer patches are available in Web Kit
Internet & Web Technical Q&As 2007-03-05
Bonjour and wake from sleep (HTML)
QA1290: Explains why applications that use Bonjour should stay registered and continue browsing on sleep.
Bonjour, Carbon, Cocoa Technical Q&As 2003-09-18
Bonjour enforces the service type format in Panther (HTML)
QA1198: Explains why registering a Bonjour service might fail on Panther.
Bonjour, Carbon, Cocoa Technical Q&As 2004-03-23
Bonjour enforces the TXT record format in Panther (HTML)
QA1306: Explains how mDNSResponder enforces the proper TXT record format in Panther.
Bonjour, Carbon, Cocoa, Core Foundation, Darwin Technical Q&As 2004-07-14
Bonjour Overview (HTML) (PDF)
Explains how to use Apple's zero-configuration networking architecture in Cocoa applications.
Bonjour Guides 2006-05-23
Bonjour Printer Subtype for HTTP (HTML)
QA1555: Describes how printer vendors can register their bonjour service such that Safari can see them.
Carbon, Cocoa, Core Foundation, Darwin Technical Q&As 2008-03-25
Bonjour service types used in Mac OS X (HTML)
QA1312: Provides a list of common Bonjour service types used in Mac OS X.
Bonjour Technical Q&As 2004-07-14
Bonjour TXT record rate limiting in Panther (HTML)
QA1293: Explains how mDNSResponder implements TXT record rate limiting in Panther.
Bonjour, Carbon, Cocoa Technical Q&As 2003-10-23
BSDLLCTest (HTML) (DMG) (ZIP)
Program sample demonstrates how to send and receive raw LLC Ethernet packets.
Carbon, Hardware & Drivers Sample Code 2003-06-12
Calling CloseOpenTransport When Writing an App (HTML) (日本語 HTML)
Deprecated - NW36: Identifies a bug in Open Transport 1.1 which means your application must CloseOpenTransport before quitting.
Carbon Technical Q&As 1996-07-03
CBGroupIdentity Class Reference (HTML) (PDF)
Describes the class for operating on user identities.
Cocoa, Security Reference 2007-05-14
CBIdentity Class Reference (HTML) (PDF)
Describes the class used to create and operate on identities.
Cocoa, Security Reference 2007-05-14
CBIdentityAuthority Class Reference (HTML) (PDF)
Describes the class used to manipulate identity authority databases.
Cocoa, Security Reference 2007-05-14
CBIdentityPicker Class Reference (HTML) (PDF)
Describes the class that manages the identity picker.
Cocoa, Security Reference 2007-05-14
CBUserIdentity Class Reference (HTML) (PDF)
Describes the class for operating on user identities.
Cocoa, Security Reference 2007-05-14
CCL Modem Scripting Guide (HTML) (PDF)
Darwin, Hardware & Drivers Guides 2007-06-28
CCL Modem Scripting Release Notes (HTML)
Explains changes to modem CCLs for Mac OS X v10.5 and what to do to change existing and supersede older scripts.
Hardware & Drivers Release Notes 2007-10-31
CFFTPSample (HTML) (DMG) (ZIP)
A simple example showing how to use CFFTPStream to download and upload files.
Core Foundation Sample Code 2006-10-13
CFFTPStream Reference (HTML) (PDF)
Describes the C API for communicating with FTP servers.
Core Foundation Reference 2008-07-11
CFHost Reference (HTML) (PDF)
Describes the C API for acquiring host information.
Core Foundation Reference 2008-07-11
CFHostSample (HTML) (DMG) (ZIP)
Uses the CFHost API to do DNS hostname lookups and to determine host reachability.
Carbon, Core Foundation Sample Code 2004-04-20
CFHTTPAuthentication Reference (HTML) (PDF)
Describes the C API for applying authentication credentials to HTTP messages.
Core Foundation Reference 2007-05-15
CFHTTPMessage Reference (HTML) (PDF)
Describes the C API for creating, sending, receiving and manipulating HTTP messages.
Core Foundation Reference 2008-07-11
CFHTTPStream Reference (HTML) (PDF)
Describes the interface for working with HTTP connections.
Core Foundation Reference 2008-07-08
CFNetDiagnostics Reference (HTML) (PDF)
Describes the C API for diagnosing and fixing network related problems.
Core Foundation Reference 2008-07-11
CFNetServices Reference (HTML) (PDF)
Describes the C API for implementing Bonjour functionality in an application.
Core Foundation Reference 2008-07-08
CFNetwork Error Codes Reference (HTML) (PDF)
Describes error codes used by the CFNetwork API.
Core Foundation Reference 2008-10-15
CFNetwork Framework Release Notes (HTML)
General, Security Release Notes 2007-10-31
CFNetwork Programming Guide (HTML) (PDF)
Explains how to use Core Foundation networking functions to work with low-level BSD sockets.
Core Foundation, General, Security Guides 2009-05-06
CFNetwork Reference Collection (HTML) (PDF)
Describes the C APIs for performing a variety network tasks.
Carbon, General Reference 2008-07-15
CFNetworkHTTPDownload (HTML) (DMG) (ZIP)
Demonstrates how to download a URL using CFNetworking.
Carbon, Core Foundation Sample Code 2006-01-18
CFProxySupport Reference (HTML) (PDF)
Describes the CFProxySupport API, which provides functions for managing network proxy information.
Core Foundation Reference 2008-07-07
CFProxySupportTool (HTML) (DMG) (ZIP)
Shows how to use the CFProxySupport APIs to decide whether a network connection should pass through a proxy.
Core Foundation, Darwin Sample Code 2007-10-29
CFStream Reference (HTML) (PDF)
Describes the interface for creating streams.
Core Foundation Reference 2007-05-03
CFStream Socket Additions (HTML) (PDF)
Describes the C API for using streams with sockets.
Core Foundation Reference 2008-07-08
Changing the TCP Window Size (HTML)
NW47: Describes how to change the TCP window size in Open Transport.
Carbon, Cocoa, Hardware & Drivers Technical Q&As 1997-03-14
The "chosen" node in the device tree (HTML)
HW88: Describes how to find the "chosen" node in the Open firmware device tree.
Hardware & Drivers, Internet & Web Technical Q&As 2000-09-05
Clearing mDNSResponder's cached records (HTML)
QA1310: Clearing the Bonjour service cache (mDNSResponder's cached records) for testing purposes.
Bonjour Technical Q&As 2004-02-11
Closing the Connection: OpenTransport (HTML) (日本語 HTML)
Deprecated - NW20: Describes an orderly disconnect situation in Open Transport between two nodes.
Carbon Technical Q&As 1996-03-04
CocoaHTTPServer (HTML) (DMG) (ZIP)
A Cocoa example showing how to write a very basic HTTP service.
Cocoa Sample Code 2005-06-01
Code Signing Guide (HTML) (PDF)
Explains how you can sign your code and why you should.
Security Guides 2008-11-19
Code Signing Release Notes (HTML)
Security Release Notes 2007-10-31
Collaboration Framework Reference (HTML) (PDF)
Describes the Objective-C API for monitoring and editing identities.
Cocoa, Security Reference 2007-05-14
Collaboration Reference Update (HTML) (PDF)
Summarizes the symbols added to the Collaboration framework.
Cocoa Release Notes 2007-07-18
Configuring and Running X11 Applications on Mac OS X (HTML)
Learn to set up and use X11 applications on your Mac OS X system.
Internet & Web Articles 2005-01-17
Core Services Framework Reference (HTML) (PDF)
Describes the API for many fundamental operating system services.
General Reference 2007-10-31
Core Services Identity Reference (HTML)
Describes the C API for creating, maintaining and finding users and groups.
Core Foundation, Security Reference 2008-04-08
Creating Secure Transactions on Mac OS X Server with SSL (HTML)
Learn how to provide a layer of public-key encryption over any TCP connection.
Internet & Web, Mac OS X Server, Security Articles 2004-01-12
CryptNoMore (HTML) (DMG) (ZIP)
Shows how to authenticate a user using Open Directory (Directory Services).
Security Sample Code 2008-03-17
Darwin Notification API Reference (HTML)
Describes the Darwin API for interprocess notification.
Darwin Reference 2008-04-08
Deploying Mac OS X Computers for K-12 Education (PDF)
Explains how to configure and deploy Mac OS X Server and Mac OS X computers for K-12 education.
Mac OS X Server Guides 2006-07-24
Descriptor Passing Problems (HTML)
QA1541: Describes how to work around common problems with descriptor passing.
Darwin Technical Q&As 2007-10-29
Determining if a Drive is a Network Volume (HTML) (日本語 HTML)
NW09: Shows how to determine if a volume is mounted over the network.
Carbon Technical Q&As 1998-06-01
Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware (HTML) (日本語 HTML)
HW47: Explains the differences between using Restart or Shut Down on Open Firmware
Hardware & Drivers Technical Q&As 1999-02-15
Directory Service Framework Reference (HTML)
Describes the Directory Service Framework.
General, Mac OS X Server Reference 2008-04-08
Directory Service Reference Update (HTML) (PDF)
Summarizes the symbols added to the Directory Service framework.
Mac OS X Server Release Notes 2007-05-02
Directory Services for Mac OS X Server v10.5 Release Notes (HTML)
Describes updates, changes, and workarounds for Directory Services for Mac OS X Server v10.5
Mac OS X Server Release Notes 2007-06-08
Discovering all advertised Bonjour service types (HTML)
QA1337: Explains how to discover all Bonjour service types being advertised on the local network.
Bonjour, Carbon, Cocoa, Core Foundation, Darwin, Hardware & Drivers Technical Q&As 2004-06-01
Distributed Objects Programming Topics (HTML) (PDF)
Explains how Objective-C objects in different threads or different processes communicate.
Cocoa Guides 2007-06-06
DNS Service Discovery C Reference (HTML)
Describes the DNS Service Discovery API for implementing Bonjour in an application.
Bonjour, General Reference 2008-04-23
DNS Service Discovery Java Reference (HTML)
Describes DNS Service Discovery API features of ZeroConf networking for Java on Mac OS X in Javadoc format.
Bonjour Reference 2008-10-15
DNS Service Discovery Programming Guide (HTML) (PDF)
Explains how to use DNS Service Discovery in your application.
Bonjour Guides 2005-11-09
DNSServiceDiscovery Mach-Based API (HTML) (PDF)
Deprecated.
Bonjour Guides 2005-04-29
DNSServiceMetaQuery (HTML) (DMG) (ZIP)
Shows how to discover Bonjour service types being advertised on the local network.
Bonjour, Core Foundation, Darwin Sample Code 2005-06-01
DockBrowser (HTML) (DMG) (ZIP)
Demonstrates how to use CFNetServices to take advantage of Bonjour service discovery and name resolution.
Bonjour Sample Code 2005-02-08
Don't forget to cancel your Bonjour resolve (HTML)
QA1297: Explains why it's important to cancel a Bonjour resolve operation.
Bonjour, Carbon, Cocoa Technical Q&As 2007-08-30
Downloading through a proxy server in Mac OS X (HTML)
QA1296: Explains when downloading through a proxy server will work, and when it will fail.
Carbon, Cocoa, Core Foundation Technical Q&As 2003-10-29
Duplicate Bonjour services while browsing (HTML)
QA1333: Explains how to work with multiple network interfaces when browsing for Bonjour services.
Bonjour Technical Q&As 2004-02-06
Embedding Bonjour in Windows Applications (HTML)
TN2210: Details the proper steps necessary for a Windows Developer to include Bonjour for Windows in their application.
Bonjour Technical Notes 2008-01-17
enetlognke (HTML) (DMG) (ZIP)
Interface filter based on supported Kernel Programming Interfaces for Tiger.
Hardware & Drivers Sample Code 2005-08-10
Error -3168 (kOTStateChangeErr) and Handoff Endpoints (HTML) (日本語 HTML)
Deprecated - NW22: Explains why a kOTStateChangeErr -3168 occurs when there is a handoff endpoint involved.
Carbon Technical Q&As 1996-04-08
Extending and Troubleshooting Directory Services (HTML)
Explains how to extend Directory Services for Mac OS X Server v10.5 and how to troubleshoot problems.
Mac OS X Server Release Notes 2009-02-04
fBroadCastAddr Always Zero (HTML) (日本語 HTML)
Deprecated - NW58: Explains why the fBroadcastAddr field may be zero after a call to OTInetGetInterfaceInfo and includes the workaround.
Carbon Technical Q&As 1999-03-08
Generating a Non-Maskable Interrupt (NMI) (HTML) (日本語 HTML)
QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
Hardware & Drivers Technical Q&As 2008-10-13
GetHWEthernetAddr (HTML) (DMG) (ZIP)
Deprecated - Shows how to obtain the hardware Ethernet address of a machine.
Hardware & Drivers Sample Code 2003-01-14
GetMACAddressSample (HTML) (DMG) (ZIP)
Demonstrates how to retrieve the MAC address for each Ethernet interface from the Mac OS X I/O Registry.
Darwin, Mac OS X Server, Security Sample Code 2003-01-14
GetPrimaryMACAddress (HTML) (DMG) (ZIP)
Demonstrates retrieving the MAC address of the built-in Ethernet controller. Useful for uniquely identifying a Macintosh system.
Darwin, Mac OS X Server, Security Sample Code 2005-10-27
GetSetOptions (HTML) (DMG) (ZIP)
Demonstrates a variety of uses of Open Transport's option management routines.
Carbon, Hardware & Drivers, Mac OS X Server Sample Code 2003-01-14
Getting a Packet Trace (HTML) (日本語 HTML)
QA1176: Lists tools available for looking at the network packets on the wire.
AirPort/802.11, Bonjour, Carbon, Cocoa, Core Foundation, Darwin, Hardware & Drivers, Internet & Web, Mac OS X Server, Printing, Security Technical Q&As 2008-06-03
Getting the User and Computer Name (HTML)
QA1078: Describes how to get the user and computer name on Mac OS X.
Carbon, Core Foundation Technical Q&As 2001-10-30
GridCalendar (HTML) (DMG) (ZIP)
Demonstrates how to add a custom job submission UI to the GridSample project.
Cocoa Sample Code 2005-06-01
Handing Off TCP Connections to a Different Port (HTML) (日本語 HTML)
NW25: Explains that a passive TCP connection cannot hand off the connection to a different port address.
Carbon Technical Q&As 1996-05-14
How to use URL Access with proxy servers (HTML)
Deprecated - QA1074: Explains how to use URL Access with proxy servers.
Carbon Technical Q&As 2001-10-02
Identity Services Programming Guide (HTML) (PDF)
Explains how identities work and how to use them in applications.
Core Foundation, Security Guides 2008-10-15
Identity Services Reference Collection (HTML) (PDF)
Describes the APIs for using identities and the Identity Picker.
Cocoa, Core Foundation, Security Reference 2007-05-14
IdentitySample (HTML) (DMG) (ZIP)
IdentitySample builds a utility which demonstrates how to use the CoreServices Identity API to manage system-wide identities
Core Foundation Sample Code 2006-07-27
ImageClient (HTML) (DMG) (ZIP)
Demonstrates how to use CFNetwork for synchronous and asynchronous operations, network diagnostics, proxy navigation, and authentication.
Carbon, Cocoa, Core Foundation Sample Code 2005-06-01
Installing an I/O Kit KEXT Without Rebooting (HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
Hardware & Drivers Technical Q&As 2003-10-28
Internet Config Reference (HTML) (PDF)
Describes the legacy technology for managing Internet preferences in Classic Mac OS.
Carbon Reference 2003-05-01
Internet Connect Speed (HTML) (日本語 HTML)
QA1165: Describes how to get the modem connection speed from the System Configuration framework dynamic store.
Carbon, Internet & Web Technical Q&As 2003-03-26
IODeviceTree and the I/O Registry (HTML) (日本語 HTML)
QA1120: Describes the IODeviceTree plane in the Mac OS X I/O Registry.
Hardware & Drivers Technical Q&As 2008-09-18
IOKit Framework Headers (HTML) (日本語 HTML)
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
Hardware & Drivers Technical Q&As 2002-01-15
Kerberos GSS (HTML) (DMG) (ZIP)
Kerberos GSS-API Sample
Security Sample Code 2008-06-04
Kernel Core Dumps (HTML)
TN2118: Explains how to gather and use remote kernel core dumps.
Hardware & Drivers Technical Notes 2008-11-12
KPI Reference (HTML)
Provides information on the NKE Sustainable API in Headerdoc format.
Darwin Reference 2006-07-17
Launching the Default Internet Browser (HTML) (日本語 HTML)
NW60: Shows with sample code how to invoke a user's default browser to open a specific URL.
Internet & Web Technical Q&As 1999-10-11
Leopard Technology Series for Developers: OS Foundations (HTML)
Leopard Overview article on system-level updates.
Bonjour Articles 2007-09-04
ListMania (HTML) (DMG) (ZIP)
Demonstrates a variety of techniques for using Open Transport's list utility routines.
Carbon, Hardware & Drivers Sample Code 2003-01-14
Living in a Dynamic TCP/IP Environment (HTML) (日本語 HTML)
TN1145: Describes some of the intricacies of dealing with TCP/IP in a dynamic environment, such as Open Transport.
Internet & Web Technical Notes 2002-08-27
LocalServer (HTML) (DMG) (ZIP)
Deprecated - Sample demonstrates how a Classic process can communicate with a Mac OS X process using IP networking protocols.
Carbon Sample Code 2003-01-30
LSMSmartCategorizer (HTML) (DMG) (ZIP)
Demonstrates the Latent Semantic Mapping (LSM) framework by automatically categorize RSS feeds.
Internet & Web Sample Code 2007-05-09
Mac OS X Security Configuration Guide (PDF)
Describes how to configure Mac OS X to enhance security.
Security Guides 2008-06-09
Mac OS X Server Administrator Topics (HTML) (PDF)
Document that describes a variety of server administrator advanced operations.
Mac OS X Server Guides 2007-05-23
Mac OS X Server Command-Line Administration (PDF)
Explains how to use commands and configuration files to perform server administration tasks in a UNIX command shell.
Mac OS X Server Guides 2007-12-11
Mac OS X Server High Availability Administration (PDF)
Explains how to manage IP failover, link aggregation, and load balancing to ensure high availability of services.
Mac OS X Server Guides 2005-04-29
Mac OS X Server Network Services Administration (PDF)
Explains how to set up, configure, and administer DHCP, DNS, VPN, NTP, IP firewall, and NAT services on the server.
Mac OS X Server Guides 2008-06-09
Mac OS X Server Podcast Producer Administration (PDF)
Explains how to set up and manage Podcast Producer service to record, process, and distribute podcasts.
Mac OS X Server Guides 2007-10-31
Mac OS X Server Podcast Producer Workflow Tutorial (PDF)
Explains how to develop and customize Podcast Producer workflows.
Mac OS X Server Guides 2008-06-09
Mac OS X Server Security Configuration Guide (PDF)
Describes how to configure Mac OS X Server to enhance server and service security.
Mac OS X Server, Security Guides 2008-06-09
Mac OS X Server System Image and Software Update Administration (PDF)
Explains how to use network-resident startup disks and how to set up a software update server.
Mac OS X Server Guides 2007-10-31
Mac OS X Server Xgrid Administration and High Performance Computing (PDF)
Explains how to set up and manage computational clusters of Xserve systems and Mac computers.
Mac OS X Server Guides 2007-10-31
Mixing link-local IP addresses and routable IP addresses (HTML)
QA1357: Explains how to enable communication between devices with link-local addresses and devices with routable addresses.
Bonjour, Darwin, Hardware & Drivers, Printing Technical Q&As 2005-07-06
MoreIsBetter (HTML) (DMG) (ZIP)
Library providing indispensable wrapers and workarounds for many areas of Mac OS programming.
Carbon, Darwin, Security Sample Code 2003-10-27
MoreSCF (HTML) (DMG) (ZIP)
High-level wrapper around System Configuration framework, making common operations easy.
Darwin Sample Code 2007-06-07
NameAndAddress (HTML) (DMG) (ZIP)
A single window utility that gets a host name from an IP address or an IP address from a hostname.
Cocoa Sample Code 2003-01-14
Network Device Driver Programming Guide (HTML) (PDF)
Background and task information about developing network drivers for Mac OS X.
Hardware & Drivers Guides 2008-03-11
Network Kernel Extensions (legacy) (HTML) (PDF)
Describes how to write a kernel extension for adding or modifying functionality of a networking stack (Mac OS X 10.3 and earlier).
Darwin, Hardware & Drivers Guides 2006-10-03
Network Kernel Extensions Programming Guide (HTML) (PDF)
Describes how to write a kernel extension for adding or modifying functionality of a networking stack (Mac OS X 10.4 and later).
Darwin, Hardware & Drivers Guides 2009-03-02
Network Services Location Manager (Legacy) (HTML) (PDF)
Deprecated - Explains how to have a Carbon application discover available network services.
Carbon Guides 2006-05-23
NewsReader (HTML) (DMG) (ZIP)
Demonstrates use of the Publication Subscription framework to create a simple RSS reader application.
Cocoa, Internet & Web Sample Code 2007-06-01
NoCopyReceives (HTML) (DMG) (ZIP)
Demonstrates using no-copy receives under Open Transport.
Carbon, Hardware & Drivers, Internet & Web Sample Code 2003-01-14
NSCachedURLResponse Class Reference (HTML) (PDF)
Describes a cached response to a URL load request.
Cocoa Reference 2008-05-02
NSHost Class Reference (HTML) (PDF)
Describes a representation of a network host.
Cocoa Reference 2007-03-24
NSHTTPCookie Class Reference (HTML) (PDF)
Describes an opaque set of data that represents state or configuration.
Cocoa Reference 2008-11-13
NSHTTPCookieStorage Class Reference (HTML) (PDF)
Describes a collection of cookies shared across all applications.
Cocoa Reference 2006-05-23
NSHTTPURLResponse Class Reference (HTML) (PDF)
Describes a response to an HTTP request.
Cocoa Reference 2006-05-23
NSInputStream Class Reference (HTML) (PDF)
Describes a read-only data stream.
Cocoa Reference 2007-04-05
NSL and how it relates to Bonjour (HTML)
QA1299: Explains the relationship between NSL and Bonjour.
Bonjour Technical Q&As 2003-09-18
NSLMiniBrowser (HTML) (DMG) (ZIP)
Deprecated - Uses the NSL API to find network services using SLP, NBP, and Directory Services.
Carbon Sample Code 2003-01-14
NSMessagePort Class Reference (HTML) (PDF)
Describes an endpoint for distributed object connections or interprocess messaging.
Cocoa Reference 2006-05-23
NSMessagePortNameServer Class Reference (HTML) (PDF)
Describes a facility that accepts and returns message ports.
Cocoa Reference 2007-02-23
NSMutableURLRequest Class Reference (HTML) (PDF)
Describes a mutable request for a resource identified by a URL.
Cocoa Reference 2006-05-23
NSNetService Class Reference (HTML) (PDF)
Describes a network service that an application publishes or uses as a client.
Cocoa Reference 2009-04-08
NSNetServiceBrowser Class Reference (HTML) (PDF)
Describes a query for published network services.
Cocoa Reference 2009-04-08
NSNetServices and CFNetServices Programming Guide (HTML) (PDF)
Describes how to implement Bonjour in Cocoa or Carbon applications.
Bonjour, Cocoa Guides 2008-10-15
NSOutputStream Class Reference (HTML) (PDF)
Describes a write-only data stream.
Cocoa Reference 2009-01-06
NSSocketPort Class Reference (HTML) (PDF)
Describes a BSD socket for distributed object connections or raw messaging.
Cocoa Reference 2008-10-15
NSSocketPortNameServer Class Reference (HTML) (PDF)
Describes a registrar of named TCP/IP sockets.
Cocoa Reference 2007-02-26
NSStream Class Reference (HTML) (PDF)
Describes an interface for reading and writing data.
Cocoa Reference 2008-10-15
NSURL Additions Reference (HTML) (PDF)
Describes additions to support pasteboards.
Cocoa Reference 2006-05-23
NSURL Class Reference (HTML) (PDF)
Describes a string that uniquely identifies a resource.
Cocoa Reference 2009-02-04
NSURLAuthenticationChallenge Class Reference (HTML) (PDF)
Describes a challenge from a server requiring authentication from the client.
Cocoa Reference 2006-05-23
NSURLAuthenticationChallengeSender Protocol Reference (HTML) (PDF)
Describes the interface for receiving authentication challenges.
Cocoa Reference 2006-05-23
NSURLCache Class Reference (HTML) (PDF)
Describes a collection of cached responses and data.
Cocoa Reference 2008-03-11
NSURLClient Protocol Reference (HTML) (PDF)
Deprecated - Describes the deprecated class replaced by the classes NSURLConnection and NSURLDownload.
Cocoa Reference 2006-08-01
NSURLConnection Class Reference (HTML) (PDF)
Describes the class that provides support for retrieving data from a server in response to a URL load request.
Cocoa Reference 2007-04-01
NSURLCredential Class Reference (HTML) (PDF)
Describes a credential used to authenticate a URL load request.
Cocoa Reference 2006-06-28
NSURLCredentialStorage Class Reference (HTML) (PDF)
Describes a mapping of credentials to their corresponding protection spaces.
Cocoa Reference 2006-05-23
NSURLDownload Class Reference (HTML) (PDF)
Describes a connection used to download data to a file.
Cocoa Reference 2006-05-23
NSURLHandle Class Reference (HTML) (PDF)
Describes a deprecated technology replaced by the NSURLDownload class.
Cocoa Reference 2009-02-04
NSURLHandleClient Protocol Reference (HTML) (PDF)
Describes a deprecated technology replaced by the NSURLDownload class.
Cocoa Reference 2006-05-23
NSURLProtectionSpace Class Reference (HTML) (PDF)
Describes an area on a server that requires authentication of URL load requests.
Cocoa Reference 2006-05-23
NSURLProtocol Class Reference (HTML) (PDF)
Describes the interface for protocol-specific loading of URL data.
Cocoa Reference 2007-04-01
NSURLProtocolClient Protocol Reference (HTML) (PDF)
Describes the interface used by protocol objects to communicate with the URL loading system.
Cocoa Reference 2006-05-23
NSURLRequest Class Reference (HTML) (PDF)
Describes a request for a resource identified by a URL.
Cocoa Reference 2007-04-01
NSURLResponse Class Reference (HTML) (PDF)
Describes the metadata returned by a server for a load request.
Cocoa Reference 2007-12-11
Numerous Small Packet Exchanges Resultin Poor TCP Performance (HTML) (日本語 HTML)
NW26: Explains why numerous small package exchanges result in poor TCP performance.
Carbon Technical Q&As 1998-05-25
Open Directory Plug-in Programming Guide (HTML) (PDF)
Explains how to implement dynamically loaded libraries that respond to Open Directory client requests in Carbon.
Darwin, Mac OS X Server Guides 2006-05-23
Open Directory Programming Guide (HTML) (PDF)
Explains how to implement centralized storage and retrieval of information in Carbon.
Darwin, Mac OS X Server Guides 2007-01-08
Open Directory Reference (HTML) (PDF)
Describes the Carbon API for using Open Directory.
Darwin, Mac OS X Server Reference 2006-05-23
Open Transport Error -3208: kEBADFErr (HTML) (日本語 HTML)
NW21: Explains why a call to OTSnd may result in a kEBADFErr -3208.
Carbon Technical Q&As 1996-03-04
Open Transport Libraries (HTML) (日本語 HTML)
NW18: Lists the Open Transport libraries and what to link with for PowerPC and 68K.
Carbon Technical Q&As 2000-11-03
Open Transport Reference (HTML) (PDF)
Describes the Carbon compatibility library for accessing TCP/IP networks at the transport level.
Carbon Reference 2005-07-07
Open Transport STREAMS FAQ (HTML)
Deprecated - TN1117: Decribes writing STREAMS modules and drivers for use with Open Transport.
Hardware & Drivers Technical Notes 1997-12-01
Optimizing an Xserve for Web Hosting (HTML)
Learn how to configure and optimize an Xserve to ensure fast, robust web hosting.
Internet & Web, Mac OS X Server Articles 2003-08-06
OS Services Framework Release Notes (HTML)
Carbon Release Notes 2007-10-31
OT Virtual Server (HTML) (DMG) (ZIP)
Deprecated - Sample code which uses Open Transport and demonstrates real world issues.
Carbon Sample Code 2003-01-14
OTEndpointInfo (HTML) (DMG) (ZIP)
Deprecated - Demonstrates how to query an endpoint for its 'vital statistic' using OTGetEndpointInfo.
Carbon Sample Code 2003-08-20
OTLookupNameTest (HTML) (DMG) (ZIP)
Deprecated - Demonstrates how to lookup NBP entities on an AppleTalk network using Open Transport.
Carbon Sample Code 2003-01-14
OTMP (HTML) (DMG) (ZIP)
Deprecated - A library for calling Open Transport synchronously from preemptively scheduled tasks (MP tasks).
Carbon Sample Code 2003-07-22
OTPingSample (HTML) (DMG) (ZIP)
Deprecated - Demonstrates how to implement ping on top of the Open Transport API.
Carbon Sample Code 2003-07-22
OTScheduleDeferredTask When Task Running (HTML) (日本語 HTML)
NW52: Describes what happens when you use OTScheduleDefferedTask to schedule a task that is running.
Carbon, Cocoa, Hardware & Drivers Technical Q&As 1997-10-13
OTScheduleSystemTask Cleanup (HTML) (日本語 HTML)
Deprecated - NW37: States the proper way to clean up any pending system tasks scheduled with OTScheduleSystemTask.
Carbon Technical Q&As 1996-07-03
The "packages" node in the device tree (HTML)
HW90: Describes the "packages" node in the Open Firmware device tree.
Hardware & Drivers Technical Q&As 2006-02-22
PictureSharing (HTML) (DMG) (ZIP)
Demonstrates how to use NSNetServices to advertise a service using Bonjour.
Bonjour Sample Code 2005-02-08
PictureSharingBrowser (HTML) (DMG) (ZIP)
Demonstrates how to use NSNetServices to take advantage of Bonjour service discovery and name resolution.
Bonjour Sample Code 2005-02-08
PortMapper (HTML) (DMG) (ZIP)
Demonstrates Bonjour's NAT port-mapping API, and provides a higher-level Objective-C interface to it.
Bonjour Sample Code 2008-07-25
Power Management; Policy Maker vs. Power Controller (HTML) (日本語 HTML)
QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
Hardware & Drivers Technical Q&As 2002-02-13
PPPoE Server for Testing (HTML) (日本語 HTML)
QA1252: Describes how to configure Mac OS X as a PPPoE server for testing purposes.
Carbon, Cocoa Technical Q&As 2003-04-11
Problems getting Bonjour TXT record information (HTML)
QA1389: Explains why you might have problems retrieving TXT record information from a CFNetServiceRef or NSNetService.
Bonjour, Carbon, Cocoa, Core Foundation Technical Q&As 2005-07-06
PSetSelfSend in Classic AppleTalk vs. Open Transport AppleTalk (HTML) (日本語 HTML)
NW23: Describes the relationship between PSetSelfSend in Classic AppleTalk and Open Transport AppleTalk.
Carbon Technical Q&As 1996-05-14
Publication Subscription Framework Reference (HTML)
Describes the Cocoa framework for publishing and subscribing to RSS and Atom feeds.
Internet & Web Reference 2008-04-08
QISA (HTML) (DMG) (ZIP)
Demonstrates the basics of writing an Internet setup assistant for traditional Mac OS and Mac OS X.
Carbon, Darwin Sample Code 2003-05-15
Raw IP and Open Transport 2.5.x (HTML)
Deprecated - NW63: Discusses Open Transport 2.5's change to the behavior of raw IP endpoints with IP_HDRINCL set.
Carbon Technical Q&As 1999-10-25
Receiving UDP Broadcasts (HTML) (日本語 HTML)
Deprecated - NW53: Explains why UDP endpoints may never receive UDP broadcast messages.
Carbon Technical Q&As 1997-11-17
Registering a Bonjour service multiple times (HTML)
QA1311: Explains why registering the same Bonjour service twice on the same machine doesn't cause a name conflict.
Bonjour Technical Q&As 2003-10-23
Resolves may return an IPv6 address in Panther (HTML)
QA1298: Explains why you get an IP address of 0.0.0.0 when resolving a Bonjour service.
Bonjour, Carbon, Cocoa, Core Foundation Technical Q&As 2005-01-10
Retain Counts of io_object_t Objects in IOKit.framework (HTML) (日本語 HTML)
QA1195: Distinguishes between the retain counts of an I/O Kit kernel object and its io_object_t user space proxy.
Printing Technical Q&As 2008-09-24
Safari User Guide for Web Developers (HTML) (PDF)
Describes the developer tools built into Safari for analyzing, testing, and debugging HTML, JavaScript, style sheets, and DOM structure.
Internet & Web Guides 2009-01-06
Secure Transport Reference (HTML) (PDF)
Describes the C API for creating a Secure Sockets Layer session over any transport layer.
Security Reference 2004-08-31
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
Security Technical Q&As 2006-11-16
Security Overview (HTML) (PDF)
An introduction to computer security concepts and the security APIs in Mac OS X and iPhone OS.
Security Guides 2008-10-15
Sending an Email (HTML)
QA1084: Shows how to create an email in the user's prefered email application.
Internet & Web Technical Q&As 2004-11-05
Server Endpoint 'qlen' Limit (HTML) (日本語 HTML)
Deprecated - NW38: Tells how to determine the maximum 'qlen' value which limits the number of supported handoff endpoints.
Carbon Technical Q&As 1996-08-21
Setting request headers in URL Access (HTML) (日本語 HTML)
Deprecated - QA1073: Explains how to work around a bug in URL Access when setting request headers.
Carbon Technical Q&As 2002-09-10
SimpleDial (HTML) (DMG) (ZIP)
Demonstrates management of dialup connections, such as PPP, using System Configuration framework network connection API.
Core Foundation, Darwin Sample Code 2005-07-26
SimplePing (HTML) (DMG) (ZIP)
Sample provides simple API to programatically ping a remote host without admin privileges
Darwin, Internet & Web Sample Code 2003-10-27
SimpleReach (HTML) (DMG) (ZIP)
Demonstrates network host reachability testing using the System Configuration framework asynchronous network reachability API.
Core Foundation, Darwin Sample Code 2005-07-26
Smart Card Setup Guide (PDF)
Explains how to configure Mac OS X version 10.4 to use smart cards.
Security Guides 2006-08-07
SocketCancel (HTML) (DMG) (ZIP)
Shows how to safely cancel threads that are blocked within BSD sockets calls.
Darwin Sample Code 2005-08-10
The state of mDNSResponder (HTML)
QA1339: Explains how to obtain information regarding the internal state of mDNSResponder.
Bonjour, Darwin, Hardware & Drivers Technical Q&As 2006-10-03
Stream Programming Guide for Cocoa (HTML) (PDF)
Explains how to use the Cocoa stream classes to read data from and write data to streams.
Cocoa Guides 2009-05-06
Synchronous TCP OTConnect Client Call Completes Before Server Responds (HTML) (日本語 HTML)
Deprecated - NW24: Explains why an OTConnect call will complete before the server responds.
Carbon Technical Q&As 1996-05-14
System Configuration Framework Reference (HTML)
Describes the API for configuration of network resources, the reachability of target hosts, and connection to network services.
Darwin, General Reference 2008-04-08
System Configuration Programming Guidelines (HTML) (PDF)
Explains how to use system configuration services for network configuration and management, including determining reachability and getting connected.
Darwin, General Guides 2006-02-07
System Configuration Reference Update (HTML) (PDF)
Summarizes the symbols added to the System Configuration framework.
Darwin Release Notes 2007-07-18
T_DATA_REQ vs M_DATA TPI Message Blocks (HTML) (日本語 HTML)
NW42: Explains why OT passes data to a TPI module using M_DATA message blocks instead of M_PROTO+T_DATA_REQ.
Carbon, Cocoa, Core Foundation, Hardware & Drivers, Internet & Web Technical Q&As 1996-10-25
TCP Application Acquires Different Port Address After Relaunch (HTML)
Deprecated - NW28: Explains why a server application acquires a different TCP/IP port address after restarting.
Carbon Technical Q&As 1996-05-14
TCP Option Sizes (HTML)
Deprecated - NW27: Tells where to get more information on TCP Option sizes and setting TCP Options.
Carbon Technical Q&As 1996-05-14
TCP/IP Option Sizes (HTML) (日本語 HTML)
NW62: Enumerates the TCP/IP options and their sizes for Open Transport.
Carbon, Hardware & Drivers, Internet & Web Technical Q&As 1999-04-26
tcplognke (HTML) (DMG) (ZIP)
Demonstrates a TCP socket filter based on supported Kernel Programming Interfaces for Tiger
Hardware & Drivers Sample Code 2006-11-27
Uniquely Identifying a Macintosh Computer (HTML) (日本語 HTML)
TN1103: How to identify a specific Macintosh computer.
Hardware & Drivers, Security Technical Notes 2006-04-25
Update: Borrowed AFP Sessions (HTML) (日本語 HTML)
TN1106: Shows how to borrow the session reference number of an AFP volume mounted by the Macintosh File System.
Carbon Technical Notes 2000-08-14
Updating the TXT record of a Bonjour service (HTML)
QA1302: Explains how to update a Bonjour TXT record while running on either Jaguar or Panther.
Bonjour, Carbon, Cocoa, Core Foundation, Darwin Technical Q&As 2004-07-14
URL Access and the Missing Progress Dialog (HTML) (日本語 HTML)
Deprecated - QA1140: Explains a known bug in URL Access related to progress dialogs.
Carbon Technical Q&As 2002-09-23
URL Access Manager Reference (HTML) (PDF)
Deprecated - Describes the legacy C API for transferring data to and from a URL from within an application. Replaced by CFNetwork.
Carbon, Internet & Web Reference 2006-07-13
URL Access vs. CFNetwork (HTML)
QA1291: Explains when to choose URL Access or CFNetwork when downloading files from within your application.
Carbon Technical Q&As 2003-10-29
URL CacheInfo (HTML) (DMG) (ZIP)
Demonstrates resource caching behavior using the Cocoa URL loading system.
Cocoa, Internet & Web Sample Code 2008-06-05
URL Loading System (HTML) (PDF)
Explains how to manipulate URLs and transfer URL contents.
Cocoa Guides 2008-05-06
Use empty string for Bonjour domains (HTML)
QA1331: Explains what to specify for the domain parameter when using Bonjour API's.
Bonjour Technical Q&As 2004-02-06
Use the Computer Name when registering your Bonjour service (HTML)
QA1228: Explains why you should use the Computer Name when advertising a Bonjour service.
Bonjour, Carbon, Cocoa Technical Q&As 2004-03-05
Using Open Source Tools to Filter Email on Mac OS X Server (HTML)
Learn how to identify, filter, and remove viruses from the Postfix mail server.
Internet & Web, Mac OS X Server, Security Articles 2004-09-27
Using the Web Services Core Framework and CFNetwork to Access Remote SOAP Services (HTML)
Learn how to access remote SOAP-based web services that require HTTP Basic or Digest authentication.
Internet & Web Articles 2007-03-07
Web Services Core Programming Guide (HTML) (PDF)
Explains how to use the new Web Services client-side frameworks available in Mac OS X.
Internet & Web Guides 2009-01-06
What are snag keys in Open Firmware? (HTML) (日本語 HTML)
HW35: Explains Open Firmware snag keys, including examples of their function.
Hardware & Drivers Technical Q&As 1999-02-15
When to use PCMCIA, PC Card, and CardBus (HTML)
HW77: Explains the differences between PCMCIA, PC Card, and CardBus.
Hardware & Drivers Technical Q&As 1999-11-15
Writing Open Directory Plug-ins (HTML)
Learn how to write Open Directory plug-ins to help your application locate and manage network information.
Darwin, Mac OS X Server Articles 2004-09-13
Xsan Programming Guide (HTML) (PDF)
Describes managing files and storage pools with Xsan.
Mac OS X Server Guides 2006-05-23
Xsan Reference (HTML) (PDF)
Describes the Xsan API commands.
Mac OS X Server Reference 2006-05-23