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Questions tagged [daemons]

macOS, which is a Unix system, uses daemons. A daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.

20 questions with no upvoted or accepted answers
8 votes
0 answers
3k views

What is `knowledgeconstructiond` doing?

Just installed Ventura on a 2017 macbook pro 15", and for the last 10 minutes or so a daemon called knowledgeconstructiond has been using sizeable but not problematic amounts of CPU. Was curious ...
Michael Roswell's user avatar
5 votes
0 answers
256 views

How to prevent non-root load of a LaunchDaemon

I want to prevent a LaunchDaemon (/Library/LaunchDaemons/com.mycorp.service.plist) from being loaded by a non-root user. Running sudo launchctl load /Library/LaunchDaemons/com.mycorp.service.plist ...
craig65535's user avatar
4 votes
0 answers
1k views

Append instead of overwrite log file by StandardOutPath and StandardErrorPath

I have a launchd job that periodically runs in the background. Any stdout and stderr output during the job is logged to some files set in the job's plist using the StandardOutPath and ...
Erik's user avatar
  • 283
4 votes
0 answers
3k views

What is the touristd process doing when it downloads ~14MB on each boot?

I've noticed on my MacBook Air (early 2015 edition, macOS 10.13.3) that there is a certain 'touristd' process that launches when I turn on the computer, downloads about 14.2MB of data, then exits. ...
numbermaniac's user avatar
3 votes
0 answers
660 views

Guide on removing unused Agents and Daemons to speed up MacOS

Can you point me to a good guide on spotting and getting rid of running Agents, Daemons and Processes that aren't useful to me anyway and are taking up memory and CPU cycles?
Petruza's user avatar
  • 2,875
2 votes
0 answers
579 views

errSecInternalComponent when using codesign from within a daemon

I have my own running daemon application that listens to a network port and executes some different commands based on the coming request. All is working fine except when trying to execute the ...
Mohammad Fneish's user avatar
2 votes
0 answers
400 views

Disable Launchd based daemon sudden termination upon shutdown

I'm running my own daemon under macOS Sierra and High-Sierra, and get unexpected behavior upon shutdown. according to the manual of daemon life cycle, it says that ... If the system is being shut ...
Irad K's user avatar
  • 151
2 votes
0 answers
57 views

Where to find documentation for apple services (agents, daemons) and status codes?

I have looked all over the place with incredible frustration - what should be basic information I can't find anywhere. Whatever I do find, is single items of information (and not what I was looking ...
vv111y's user avatar
  • 61
2 votes
0 answers
58 views

How should daemons tell users about errors?

I wrote a bash script that backs up certain files on my computer. To automate the running of the script, I set up an associated daemon that runs the script every day. There are certain instances ...
user134824's user avatar
1 vote
0 answers
17 views

S3 lauchctl error input/output. Boot doesn't mount S3 bucket

My script to mount an S3 bucket works fine, but mount at boot is not working. I tried launch daemons on macOS Sonoma, compiling with this plist. Here is the code: <?xml version="1.0" ...
Oscardot's user avatar
1 vote
0 answers
216 views

Why are my LaunchDaemons disappearing after reboot in Mac OS Catalina?

I've got a group of launchds which I've been using across a dozen OS versions in Mac. These do various things (such as shut off TimeMachine for parts of the day when the system is most heavily used, ...
Frank Smith's user avatar
1 vote
0 answers
810 views

How to know what `nsurlsessiond` is downloading

I have nsurlsessiond downloading at about 1.5 MB per second for a full day now, making other internet activities on my laptop less responsive. I tried killing the nsurlsessiond but it just comes back ...
Maarten Derickx's user avatar
1 vote
0 answers
128 views

Mouse moves, but cannot click

My mouse just got stuck: I could still move the pointer, but clicks would not register. This occurred with both my external Magic Trackpad, and the laptop's internal trackpad, apropos of nothing. As ...
Xophmeister's user avatar
0 votes
0 answers
382 views

Possible method to mount a Linux SMB share on macOS Ventura before user login

I am trying to mount a Linux SMB share onto a macOS machine running Ventura 13.4. I must have the share mounted after the macOS machine bootup is completed, but before any possible user has logged ...
Sam Marrocco's user avatar
0 votes
0 answers
152 views

macOS - run bash script when specific URL is clicked

Is it possible to write an AppleScript or macOS service/daemon to detect when a URL is clicked (which would launch the browser) and run a bash script as well/instead? Use case: detect when github.com ...
Tom Oakley's user avatar

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