1. Run a scanner or printer with an outdated driver that requires a particular OS. And the list goes on and on. If you’re using a different solution to run multiple operating systems, consider trying Parallels Desktop —no restart required, unmatched flexibility and performance, and a free 14-day trial.
2. Run Fallout 4 on Mac with Parallels. Parallels is the virtualization software that allows you to launch Windows and Fallout 4 on Mac OS with the help of virtualization. This program can be outlined for DirectX 11 support using Apple Metal. The meaning of it is that your Mac can render 3D graphics up to 15 percent faster than other programs.

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Check what version of OS X or macOS your Mac supports. The latest version of macOS, macOS Catalina, is supported on any Mac introduced in 2012 or newer. If your Mac doesn't support macOS Catalina, it might be supported by macOS High Sierra, which requires a Mac introduced in 2009 or 2010. Jump Desktop is a remote desktop application that lets you securely connect to any computer in the world. Compatible with both RDP and VNC, Jump Desktop is secure, reliable and very easy to set up. Jump Desktop also supports our own, high performance, next generation remote desktop protocol called Fluid Remote Desktop. Easy setup and reliable. Apple said that would run happily on a late 2009 or later MacBook or iMac, or a 2010 or later MacBook Air, MacBook Pro, Mac mini or Mac Pro. If you Mac is supported read: How to update to Big Sur.

Virtualization is not a new term to most of us, with the help of the Virtual Machine program on Windows 10 we can run and test various other operating systems just like one on some physical machine. There are many benefits of working with a Virtual Machine such as it allows us to test new systems safely, let’s use older software on old versions of Windows, or test unknown software with a second Windows without using the actual operating system. Here in this article, we will explain what is a virtual machine and for what purpose one should use which Virtual Machine platform?

What is a virtual machine?

Generally, on our PC or Laptop, we have only one operating system either Windows or Linux, however, what happens if we want to try out some other OS. For example, we have Windows 10 PC and want to try Ubuntu Linux, in such a scenario either you can set a boot manager that offers a selection of which operating system should be started when the system is booted. Well, this whole procedure is not only time-consuming and error-prone, moreover, if you don’t know how to do it properly it can even cause a breakdown of the system’s current OS.

However, this all doesn’t need anymore, we already have a technology called virtualization achieved using different hypervisor platforms for Windows, Mac OS, and Linux. Hypervisor programs such as Hyper-V, VMware Workstation, and Oracle VirtualBox are some popular ones that allow a virtual machine (VM) to run in isolation on a host system as if it were on a physical machine. For better compatibility, the VMWare and VirtualBox virtualizers also offer extensions that have to be installed on the guest system so that, for example, USB 3.0 or switching to the guest system is possible using the mouse focus alone. You can also know the difference between Type I and II Hypervisor and the best Type 1 virtualization platforms in the opensource category.

In clear words, the virtual machine (VM) running on our existing physical machine virtually has the ability to be executed like any other program on the desktop and can be displayed as a window or on a full screen. The OS which runs on VM known as guest OS and our physical machine’s main OS is called the host. Yes, a host that is taking care of guest requirements so that it could run properly. Guest can access the hardware and other attached peripheral devices.

In short, you can install everything within the virtual machine that would be executable on the real hardware. Regardless of whether it’s an old Windows XP, Linux, BSD, Solaris, OS / 2, macOS X, or the latest insider build of Windows 10.

Key Benefits of using Virtual Machines on Windows 10

1. Control on Resources

Well, the Virtualization platforms use the computing power and memory available on the host system, thus there would not be any massive loss in performance as compared to the expectation for running an OS on a real system. However, the major advantage is we can control the CPU performance and RAM allocation to installed Guests. This means, according to the demand it is possible to set how much RAM and CPU cores should be used by any particular guest OS. For example, we have two virtual machines one is Ubuntu Linux with GUI and the other is CentOS server CLI, of course, the GUI one needs more RAM and processing power than a command-line interface, hence we can customize the hardware resource on Hypervisors accordingly.

2. Networks with virtual machines

Guest machines get their network connectivity from the host machine, thus we can control its mode or turn it off to isolate the guest system completely from the outside world. There are multiple modes such as by default the network connection of the guest system is via “NAT” in which the client does not receive its IP from the main DHCP server or router whereas in “bridge mode” the guest system behaves like a normal PC, it receives its own IP address from the router and behaves like any other PC in the network.

You can use these network settings to determine how the VM is connected to the network, depending on the area of ​​application.

Furthermore, we can set a shared folder that facilitates data exchange between the virtual machine and the host system. Access to the folder from the real system can also only be set up as “read” to prevent the attack of a virus from the guest system on the host system.

3. Ability to run an older OS like Windows XP on Windows 10

Many of us especially the new generation didn’t get a chance to experience one of the dominant operating systems of the world i.e Windows XP, thus if any of us want to try an old operating system then virtual machines are the best available way.

4. Test new Linux or trial versions of Windows Server

As we know there are hundreds of Linux variants and every month something new is developing, thus we cannot test all of them on our physical machines but on Virtual Machine, we can. Also, if you are learning Windows Server then trying it on VM with other couple guests’ VMs to simulate a real-life server-client environment will be quite easy.

Furthermore, we can safely try out new feature upgrades of Windows 10 that appear every six months in a virtual machine before having the new build installed on the real system.

5. Experience unknown applications

Although Windows 10 has now a sandbox feature to test software in an isolated environment, however, the moment we close the Sandbox window, it automatically resets everything. Therefore, if you want to safely test new programs or those unknown sources from the Internet for as long as you want then the virtual environment gives us that freedom.

6. Virus protection

Virtualization offers enough protection from various kinds of Viruses, as VM platforms keep different machines separate from each other. Therefore, those who are in the testing field or developing can test security programs safely, it is very unlikely that viruses will jump from the guest system to the host system.

7. Better usage of powerful hardware

Today’s processors even in the PC of home users are enough powerful that we couldn’t actually use their complete processing power. For example, a common i7 desktop with 12 GB RAM, we can’t use its complete power by just doing regular day to day tasks, in the same way, today’s servers are way competent than we think. Therefore, to not only proper usage of their powers & resources but to save electricity, space, and carbon footprint, virtualization helps a lot.

Best virtual machines free for Windows 10 32 or 64-bit

When it comes to Virtualization platforms for professional or home users of Windows 10 32-bit or 64-bit, then there are only a couple of or rather I say only three best possible options. Of course, Docker and Vagrant like platforms are there but inclined more towards advance and enterprise users. The market of virtualization solutions is getting bigger day by day but especially for server services in the cloud for example VMware Cloud, Google Cloud, Microsoft with Azure, VMWare Cloud, or other solutions with Infrastructure as a Service (IaaS) show.

However, regular users somewhere confined to only three solutions on Windows 10- Microsoft Hyper-V, Vmware Workstation, and Oracle Vmware. Hence, these are the only best virtualization solution available to fulfill the demands of Home and professional users.

Some people may say about Qemu but it is an emulator rather than a virtualizer (one that has access to the same hardware available on the system), thus Qemu cannot match the performance of Hypervisors. However, when we use Qemu with KVM Kernel-based Virtual Machine (KVM ) on Linux then it provides high performance and virtualization of any operating system at near-native speed. But unfortunately, KVM is a Linux kernel and only available for Linux platforms, thus, using Qemu on Windows 10 is out of the question.

1. VMWare Workstation Player

Vmware is not a new name in the world of Virtualization, they have been in the market for many years and offer a range of enterprise products, however, two products for which VMware is mainly known among the home and professional Windows 10 desktop users are VMWare Workstation Player and VMWare Workstation Pro. The difference lies in the range of functions and the price.

The best thing VMware Workstation Player (download) is free for personal usage, however, compared to the pro version, of course, lacks many functions. Well, that’s acceptable but it even lacks some functions which are available in open-source Oracle VirtualBox such as snapshots or the simultaneous execution of several VMs without opening a separate app again. Despite some limitations and especially the lack of snapshots, VMWare Workstation is better in terms of performance to VirtualBox on Windows 10 (it is my personal experience and could be different for others). Even it is quite easy to handle and also offers unattended installation for common Linux operating systems such as Ubuntu.

Creating VMs on VMware is not a cumbersome task, just create a new VM, define memory and hard disk space along with ISO of the Linux or Windows OS you want to install on it. It provides support to almost all available platforms from Windows 3.1 to Windows 10 including Linux distributions and also other systems such as MS-DOS, FreeBSD, Netware, or Solaris. VMware workstation player is available for Windows and Linux platforms. One thing that also needs to be noted that we can run Vmware Player along with Hyper-V installed Windows 10.

2. Oracle VirtualBox

VirtualBox is popular not only due to its wide range of features but also because it is an open-source platform, thus can be used without any restrictions by home, professional users, and educational institutions. The virtualization software is available for Windows, Mac OS, Solaris, and Linux.

If we talk about guest OS supports, then VirtualBox has extensive compatibility with most of the available operating systems such as MS-DOS, Windows 3.1 to Windows 10, most Linux distributions, Solaris, BSD, OS / 2, and Mac OS X…

The user interface of VirtualBox has been improved quite a lot since the release of version 6 and ease of handling and usage of VM on it is no better or worse than that of VMWare Workstation Player.

On VirtualBox, we can perform various configurations such as hard drive, optical data storage device or ISO file, memory, network, USB, a shared folder for exchange with the host system, and much more.

One of the interesting features of VirtualBox is Snapshots, which are basically backup points that can be created, deleted, or cloned at any time. Snapshots are handy when we are installing some unknown software or upgrading our Virtual Guest OS, and incase if some problem occurs later, we can reset the system to the latest backup point. Just like Vmware, it is also possible to use VirtualBox side by side with Microsoft Hyper-V, however, performance toll will be there.

3. Microsoft Hyper-V

Hyper-V is also a free virtualizer from Microsoft that only available for Windows. However, only Pro editions of Windows 10 will have this feature; thus, if you are on Windows home, then you should go for the above-mentioned platforms. Apart from Windows 10, Windows Server 2016 or 2019 will also have it out of the box.

Also, your Windows or Server should be using a 64-bit processor with Second Level Address Translation (SLAT and at least 4GB of RAM to run Hyper-V, which is common in all modern systems.

The users can enable the Hyper-V featureeither using PowerShell or via GUI “Turns Windows feature on or off” Settings.

Well, the quickest method is the command line, simply press Win+X and open Windows PowerShell (Admin) to run the below-given command:

After that restart your PC or Server.

VM Setup on Hyper-V

We can use local stored ISO images to create VMs on Hyper-V and apart from that, there is also an option to Quickly create an evaluation version of Windows 10 Enterprise and three Ubuntu versions of virtual machines by downloading their files online. For other systems use ISO images from other systems via “Local installation source”.

A special feature of Hyper-V is the dynamic memory management. Here you set a minimum and maximum value. Hyper-V then uses the memory dynamically and does not block it when the VM is started. However, for newbies, Hyper-v will be a little bit complicated such as its Network Management is not like VMWare Workstation Player and VirtualBox. For example, by default, the virtual switch will be in NAT mode, and to have a bridge connection, you must first create a new virtual switch using the Hyper-V Manager.

Usage of created VMs is simple in Hyper-V, we can start, stop and stop them using corresponding buttons available in an icon bar.

Taking backup of Virtual Machine Guest OS is also possible using the Snapshot feature that is known as checkpoints in Hyper-V.

Which Virtual Machine should you use on Windows 10?

All three can be used to virtualize any existing popular operating system on Windows 10, however, if you want to narrow down your choice then that depends on your need and familiarity with Virtualization technology.

Hence, if you are a beginner then VirtualBox and VMWare Workstation Player are the best because of their interfaces and ease of usage. However, performance-wise I found VMware much better to run Linux distros on Windows 10 than VirtualBox whereas on the other hand users who are looking for a well-balanced and feature-rich platform then Oracle Virtualbox is good to go.

Well, advanced users, those who want a well-integrated virtualizer into the host operating system with a dynamic memory management feature to run several active VMs at the same time then Hyper-V would be the one to ponder upon.

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If you are developing daemons to run on OS X, it is highly recommended that you design your daemons to be launchd compliant. Using launchd provides better performance and flexibility for daemons. It also improves the ability of administrators to manage the daemons running on a given system.

If you are running per-user background processes for OS X, launchd is also the preferred way to start these processes. These per-user processes are referred to as user agents. A user agent is essentially identical to a daemon, but is specific to a given logged-in user and executes only while that user is logged in.

Unless otherwise noted, for the purposes of this chapter, the terms “daemon” and “agent” can be used interchangeably. Thus, the term “daemon” is used generically in this section to encompass both system-level daemons and user agents except where otherwise noted.

There are four ways to launch daemons using launchd. The preferred method is on-demand launching, but launchd can launch daemons that run continuously, and can replace inetdfor launching inetd-style daemons. In addition, launchd can start jobs at timed intervals.

Although launchd supports non-launch-on-demand daemons, this use is not recommended. The launchd daemon was designed to remove the need for dependency ordering among daemons. If you do not make your daemon be launched on demand, you will have to handle these dependencies in another way, such as by using the legacy startup item mechanism.

Launching Custom Daemons Using launchd

With the introduction of launchd in OS X v10.4, an effort was made to improve the steps needed to launch and maintain daemons. What launchd provides is a harness for launching your daemon as needed. To client programs, the port representing your daemon’s service is always available and ready to handle requests. In reality, the daemon may or may not be running. When a client sends a request to the port, launchd may have to launch the daemon so that it can handle the request. Once launched, the daemon can continue running or shut itself down to free up the memory and resources it holds. If a daemon shuts itself down, launchd once again relaunches it as needed to process requests.

In addition to the launch-on-demand feature, launchd provides the following benefits to daemon developers:

• Simplifies the process of making a daemon by handling many of the standard housekeeping chores normally associated with launching a daemon.

• Provides system administrators with a central place to manage daemons on the system.

• Supports inetd-style daemons.

• Eliminates the primary reason for running daemons as root. Because launchd runs as root, it can create low-numbered TCP/IP listen sockets and hand them off to the daemon.

• Simplifies error handling and dependency management for inter-daemon communication. Because daemons launch on demand, communication requests do not fail if the daemon is not launched. They are simply delayed until the daemon can launch and process them.

The launchd Startup Process

After the system is booted and the kernel is running, launchd is run to finish the system initialization. As part of that initialization, it goes through the following steps:

1. It loads the parameters for each launch-on-demand system-level daemon from the property list files found in /System/Library/LaunchDaemons/ and /Library/LaunchDaemons/.

2. It registers the sockets and file descriptors requested by those daemons.

3. It launches any daemons that requested to be running all the time.

4. As requests for a particular service arrive, it launches the corresponding daemon and passes the request to it.

5. When the system shuts down, it sends a SIGTERM signal to all of the daemons that it started.

The process for per-user agents is similar. When a user logs in, a per-user launchd is started. It does the following:

1. It loads the parameters for each launch-on-demand user agent from the property list files found in /System/Library/LaunchAgents, /Library/LaunchAgents, and the user’s individual Library/LaunchAgents directory.

2. It registers the sockets and file descriptors requested by those user agents.

3. It launches any user agents that requested to be running all the time.

4. As requests for a particular service arrive, it launches the corresponding user agent and passes the request to it.

5. When the user logs out, it sends a SIGTERM signal to all of the user agents that it started.

Because launchd registers the sockets and file descriptors used by all daemons before it launches any of them, daemons can be launched in any order. If a request comes in for a daemon that is not yet running, the requesting process is suspended until the target daemon finishes launching and responds.

If a daemon does not receive any requests over a specific period of time, it can choose to shut itself down and release the resources it holds. When this happens, launchd monitors the shutdown and makes a note to launch the daemon again when future requests arrive.

Important: If your daemon shuts down too quickly after being launched, launchd may think it has crashed. Daemons that continue this behavior may be suspended and not launched again when future requests arrive. To avoid this behavior, do not shut down for at least 10 seconds after launch.

Creating a launchd Property List File

To run under launchd, you must provide a configuration property list file for your daemon. This file contains information about your daemon, including the list of sockets or file descriptors it uses to process requests. Specifying this information in a property list file lets launchd register the corresponding file descriptors and launch your daemon only after a request arrives for your daemon’s services. Table 5-1 lists the required and recommended keys for all daemons.

The property list file is structured the same for both daemons and agents. You indicate whether it describes a daemon or agent by the directory you place it in. Property list files describing daemons are installed in /Library/LaunchDaemons, and those describing agents are installed in /Library/LaunchAgents or in the LaunchAgents subdirectory of an individual user’s Library directory. (The appropriate location for executables that you launch from your job is /usr/local/libexec.)

For more information: For a complete listing of the keys, see the launchd.plist manual page.

For sample configuration property lists, look at the files in /System/Library/LaunchDaemons/. These files are used to configure many daemons that run on OS X.

Writing a “Hello World!” launchd Job

The following simple example launches a daemon named hello, passing world as a single argument, and instructs launchd to keep the job running:

In this example, there are three keys in the top level dictionary. The first is Label, which uniquely identifies the job. when. The second is ProgramArguments which has a value of an array of strings which represent the tokenized arguments and the program to run. The third and final key is KeepAlive which indicates that this job needs to be running at all times, rather than the default launch-on-demand behavior, so launchd should always try to keep this job running.

Listening on Sockets

You can also include other keys in your configuration property list file. For example, if your daemon monitors a well-known port (one of the ports listed in /etc/services), add a Sockets entry as follows:

The string for SockServiceName typically comes from the leftmost column in /etc/services. The SockType is one of dgram (UDP) or stream (TCP/IP). If you need to pass a port number that is not listed in the well-known ports list, the format is the same, except the string contains a number instead of a name. For example:

Debugging launchd Jobs

There are some options that are useful for debugging your launchd job.

The following example enables core dumps, sets standard out and error to go to a log file, and instructs launchd to temporarily increase the debug level of its logging while acting on behalf of your job (remember to adjust your syslog.conf accordingly):

Running a Job Periodically

The following example creates a job that is run every five minutes (300 seconds):

Alternately, you can specify a calendar-based interval. The following example starts the job on the 7th day of every month at 13:45 (1:45 pm). Like the Unix cron subsystem, any missing key of the StartCalendarInterval dictionary is treated as a wildcard—in this case, the month is omitted, so the job is run every month.

Monitoring a Directory

The following example starts the job whenever any of the paths being watched have changed:

An additional file system trigger is the notion of a queue directory. The launchd daemon starts your job whenever the given directories are non-empty, and it keeps your job running as long as those directories are not empty:

Emulating inetd

The launchd daemon emulates the older inetd-style daemon semantics if you provide the inetdCompatibility key:

Behavior for Processes Managed by launchd

Processes that are managed by launchd must follow certain requirements so that they interact properly with launchd. This includes launch daemons and launch agents.

Required Behaviors

To support launchd, you must obey the following guidelines when writing your daemon code:

• You must provide a property list with some basic launch-on-demand criteria for your daemon. See Creating a launchd Property List File.

• You must not daemonize your process. This includes calling the daemon function, calling fork followed by exec, or calling fork followed by exit. If you do, launchd thinks your process has died. Depending on your property list key settings, launchd will either keep trying to relaunch your process until it gives up (with a “respawning too fast” error message) or will be unable to restart it if it really does die.

• Daemons and agents that are installed globally must be owned by the root user. Agents installed for the current user must be owned by that user. All daemons and agents must not be group writable or world writable. (That is, they must have file mode set to 600 or 400.)

Recommended Behaviors

To support launchd, it is recommended that you obey the following guidelines when writing your daemon code:

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• Wait until your daemon is fully initialized before attempting to process requests. Your daemon should always provide a reasonable response (rather than an error) when processing requests.

• Register the sockets and file descriptors used by your daemon in your launchd configuration property list file.

• If your daemon advertises a socket, check in with launchd as part of your daemon initialization. For an example implementation of the check-in process, see SampleD.

• During check-in, get the launch dictionary from launchd, extract and store its contents, and then discard the dictionary. Accessing the data structure used for the dictionary is very slow, so storing the whole dictionary locally and accessing it frequently could hurt performance.

• Provide a handler to catch the SIGTERM signal.

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In addition to the preceding list, the following is a list of things it is recommended you avoid in your code:

• Do not set the user or group ID for your daemon. Include the UserName, UID, GroupName, or GID keys in your daemon’s configuration property list instead.

• Do not set the working directory. Include the WorkingDirectory key in your daemon’s configuration property list instead.

• Do not call chroot to change the root directory. Include the RootDirectory key in your daemon’s configuration property list instead.

• Do not call setsid to create a new session.

• Do not close any stray file descriptors.

• Do not change stdio to point to /dev/null. Include the StandardOutPath or StandardErrorPath keys in your daemon’s configuration property list file instead.

• Do not set up resource limits with setrusage.

• Do not set the daemon priority with setpriority

Although many of the preceding behaviors may be standard tasks for daemons to perform, they are not recommended when running under launchd. The reason is that launchd configures the operating environment for the daemons that it manages. Changing this environment could interfere with the normal operation of your daemon.

Deciding When to Shut Down

If you do not expect your daemon to handle many requests, you might want to shut it down after a predetermined amount of idle time, rather than continue running. Although a well-written daemon does not consume any CPU resources when idle, it still consumes memory and could be paged out during periods of intense memory use.

The timing of when to shut down is different for each daemon and depends on several factors, including:

• The number and frequency of requests it receives

• The time it takes to launch the daemon

• The time it takes to shut down the daemon

• The need to retain state information

If your daemon does not receive frequent requests and can be launched and shut down quickly, you might prefer to shut it down rather than wait for it to be paged out to disk. Paging memory to disk, and subsequently reading it back, incurs two disk operations. If you do not need the data stored in memory, your daemon can shut down and avoid the step of writing memory to disk.

Special Dependencies

While launchd takes care of dependencies between daemons, in some cases, your daemon may depend on other system functionality that cannot be addressed in this manner. This section describes many of these special cases and how to handle them.

Network Availability

If your daemon depends on the network being available, this cannot be handled with dependencies because network interfaces can come and go at any time in OS X. To solve this problem, you should use the network reachability functionality or the dynamic store functionality in the System Configuration framework. This is documented in System Configuration Programming Guidelines and System Configuration Framework Reference. For more information about network reachability, see Determining Reachability and Getting Connected in System Configuration Programming Guidelines.

Disk or Server Availability

If your daemon depends on the availability of a mounted volume (whether local or remote), you can determine the status of that volume using the Disk Arbitration framework. This is documented in Disk Arbitration Framework Reference.

Non-launchd Daemons

If your daemon has a dependency on a non-launchd daemon, you must take additional care to ensure that your daemon works correctly if that non-launchd daemon has not started when your daemon is started. The best way to do this is to include a loop at start time that checks to see if the non-launchd daemon is running, and if not, sleeps for several seconds before checking again.

Be sure to set up handlers for SIGTERM prior to this loop to ensure that you are able to properly shut down if the daemon you rely on never becomes available.

User Logins

In general, a daemon should not care whether a user is logged in, and user agents should be used to provide per-user functionality. However, in some cases, this may be useful.

To determine what user is logged in at the console, you can use the System Configuration framework, as described in Technical Q&A QA1133.

Kernel Extensions

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If your daemon requires that a certain kernel extension be loaded prior to executing, you have two options: load it yourself, or wait for it to be loaded.

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The daemon may manually request that an extension be loaded. To do this, run kextload with the appropriate arguments using exec or variants thereof. I/O Kit kernel extensions should not be loaded with kextload; the I/O Kit will load them automatically when they are needed.

Note: The kextload executable must be run as root in order to load extensions into the kernel. For security reasons, it is not a setuid executable. This means that your daemon must either be running as the root user or must include a helper binary that is setuid root in order to use kextload to load a kernel extension.

Alternatively, our daemon may wait for a kernel service to be available. To do this, you should first register for service change notification. This is further documented in I/O Kit Framework Reference.

After registering for these notifications, you should check to see if the service is already available. By doing this after registering for notifications, you avoid waiting forever if the service becomes available between checking for availability and registering for the notification.

Note: In order for your kernel extension to be detected in a useful way, it must publish a node in the I/O registry to advertise the availability of its service. For I/O Kit drivers, this is usually handled by the I/O Kit family.

For other kernel extensions, you must explicitly register the service by publishing a nub, which must be an instance of IOService.

For more information about I/O Kit services and matching, see IOKit Fundamentals, I/O Kit Framework Reference (user space reference), and Kernel Framework Reference (kernel space reference).

For More Information

The manual pages for launchd and launchd.plist are the two best sources for information about launchd.

In addition, you can find a source daemon accompanying the launchd source code (available from http://www.macosforge.org/). This daemon is also provided from the Mac Developer Library as the SampleD sample code project.

The Daemons and Agents technical note provides additional information about how launchd daemons and agents work under the hood.

Finally, many Apple-provided daemons support launchd. Their property list files can be found in /System/Library/LaunchDaemons. Some of these daemons are also available as open source from http://www.opensource.apple.com/ or http://www.macosforge.org/.

Copyright © 2003, 2016 Apple Inc. All Rights Reserved. Terms of Use Privacy Policy Updated: 2016-09-13