osx/*: add page for macOS interal daemons (#6705)

appsleepd
auditd
avbdevided
bird
bnepd
cfprefsd
cloudphotod
coreaudiod
distnoted
emond
filecoordinationd
launchd
notifyd
ocspd
photoanalysisd
pppd
secd
securityd
timed
universalaccessd
usernoted
vpnd

pages/common/auditd.md

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+# auditd
+
+> This responds to requests from the audit utility and notifications from the kernel.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`auditd`
+
+- Start the daemon in debug mode:
+
+`auditd -d`
+
+- Start the daemon on-demand from launchd:
+
+`auditd -l`

pages/common/pppd.md

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+# pppd
+
+> Establish Point-to-Point connection to another computer.
+> It should not be invoked manually.
+> More information: <https://ppp.samba.org/pppd.html>.
+
+- Start the daemon:
+
+`pppd`

pages/osx/appsleepd.md

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+# appsleepd
+
+> Provides app sleep services.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`appsleepd`

pages/osx/avbdeviced.md

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+# avbdeviced
+
+> A service for managing Audio Video Bridging (AVB) devices.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`avbdeviced`

pages/osx/bird.md

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+# bird
+
+> This supports the syncing of iCloud and iCloud drive.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`bird`

pages/osx/bnepd.md

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+# bnepd
+
+> A service that handles all Bluetooth network connections.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`bnepd`

pages/osx/cfprefsd.md

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+# cfprefsd
+
+> Provides preferences services (`CFPreferences`, `NSUserDefaults`).
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`cfprefsd`

pages/osx/cloudphotod.md

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+# cloudphotod
+
+> This synchronizes iCloud Photos.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`cloudphotod`

pages/osx/coreaudiod.md

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+# coreaudiod
+
+> Service for Core Audio, Apple's audio system.
+> It should not be invoked manually.
+> More information: <https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/WhatisCoreAudio/WhatisCoreAudio.html>.
+
+- Start the daemon:
+
+`coreaudiod`

pages/osx/distnoted.md

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+# distnoted
+
+> Provides distributed notification services.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`distnoted`

pages/osx/emond.md

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+# emond
+
+> Event Monitor service that accepts events from various services, runs them through a simple rules engine, and takes action.
+> The actions can run commands, send email, or SMS messages.
+> More information: <https://www.xorrior.com/emond-persistence/>.
+
+- Start the daemon:
+
+`emond`
+
+- Specify rules for emond to process by giving a path to a file or directory:
+
+`emond -r {{path/to/file_or_directory}}`
+
+- Use a specific configuration file:
+
+`emond -c {{path/to/config}}`

pages/osx/filecoordinationd.md

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+# filecoordinationd
+
+> Coordinates access to files by multiple processes (`NSFileCoordinator`, `NSFilePresenter`).
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`filecoordinationd`

pages/osx/launchd.md

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+# launchd
+
+> This manages processes, both for the system and users.
+> You cannot invoke launchd manually, use launchctl to interact with it.
+> More information: <https://developer.apple.com/library/archive/documentation/MacOSX/Conceptual/BPSystemStartup/Chapters/Introduction.html>.
+
+- Run init:
+
+`/sbin/launchd`
+
+- View documentation for interacting with launchd using launchctl:
+
+`tldr launchctl`

pages/osx/notifyd.md

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+# notifyd
+
+> Notification server.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`notifyd`
+
+- Log debug messages to the default log file (`/var/log/notifyd.log`):
+
+`notifyd -d`
+
+- Log debug messages to an alternate log file:
+
+`notifyd -d -log_file {{path/to/log}}`

pages/osx/ocspd.md

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+# ocspd
+
+> This retrieves and caches Certificate Revocation Lists (CRLs) and Online Certificate Status Protocol (OCSP) responses for certificate verification.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`ocspd`

pages/osx/photoanalysisd.md

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+# photoanalysisd
+
+> This analyzes photo libraries for Memories, People, and scene or object based search.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`photoanalysisd`

pages/osx/photolibraryd.md

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+# photolibraryd
+
+> This handles all photo library requests.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`photolibraryd`

pages/osx/secd.md

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+# secd
+
+> Controls access to and modification of keychain items.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`secd`

pages/osx/securityd.md

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+# securityd
+
+> This manages security contexts and cryptographic operations.
+> Works with secd for keychain access.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`securityd`

pages/osx/timed.md

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+# timed
+
+> Service that synchronizes system time (e.g. using NTP).
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`timed`

pages/osx/universalaccessd.md

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+# universalaccessd
+
+> Provides universal access services.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`universalaccessd`

pages/osx/usernoted.md

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+# usernoted
+
+> Provides notification services.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`usernoted`

pages/osx/vpnd.md

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+# vpnd
+
+> Listens for incoming VPN connections.
+> It should not be invoked manually.
+
+- Start the daemon:
+
+`vpnd`
+
+- Run the daemon in the foreground:
+
+`vpnd -x`
+
+- Run the daemon in the foreground and print logs to the terminal:
+
+`vpnd -d`
+
+- Run the daemon in the foreground, print logs to the terminal, and quit after validating arguments:
+
+`vpnd -n`
+
+- Print usage summary and exit:
+
+`vpnd -h`
+
+- Run the daemon for a specific server configuration:
+
+`vpnd -i {{server_id}}`