Questions tagged [logs]

System files that contain system event information, errors, and crash information.

76 questions with no upvoted or accepted answers
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220 views

iPhone app access log

I accidentally brought my iPhone 7 into my university examination and was wondering if I would be able to produce a log (record) of iPhone app access, to show that I never used it during that ...
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326 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 ...
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313 views

MacOS unified logging: how can I filter messages based on tag on the command line?

I can add a message to the macos system log via the command line on Sierra or later as follows: logger -t "TestTag" "testing 1 2 3" How do I find all messages that have been tagged with TestTag? I ...
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780 views

How to monitor Mac file sharing activity

I am a new Mac user and have struggled mightily to find an answer to this question in recent days. I’m running a MacOS Sierra client, and sharing a folder of files with other Macs on my local network....
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1k views

How to send macOS logs to syslog (graylog) server from /etc/asl.conf

I have recently setup a cool Graylog server for myself which I have various machines now sending their log output to. It's great and is helping me a ton. I want to do the same with macOS. There are ...
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22 views

Extracting diagnostic logs from iPad 2 with macOS Catalina

I have an iPad 2 from wich I want to extract the diagnostic logs. The use case is a failed activation that blocks me from using the iPad or restoring it with my Laptop. I have a separate question for ...
2
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0answers
41 views

Check system logs for “Service Battery” entry

I would like to find evidence of when the "Service Battery" warning has been activated. I knoow the console.app exists, but I'm not sure how to query it for what I am looking for. Why I want to do ...
2
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1k views

Was my Macbook Pro remotely accessed?

I'm running Mojave on a Macbook Pro. A while ago, my screen started randomly scrolling down by itself while I was using Safari, and the problem persisted for a few seconds. The scrolling seemed almost ...
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1k views

How to create a cron log file in macOS High Sierra

I have an issue with cron in macOS High Sierra. I have cron running, and it is running the jobs I want to run. I am unable, however, to figure out how to make it create a cron.log file in /var/log. ...
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0answers
53 views

How can I tell the exact time when a drive disconnected?

I have a USB drive (a Drobo) that appears disconnecting randomly after 10-20 hours. I'm trying to gather data to help understand the root cause of the problem so I'd like to understand the timing of ...
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47 views

How to get output from the console.app from a non-admin account?

I almost exclusively use a non-admin account for everyday use. Only for installing software, etc. I log in with the admin account. This normally works very well, however, there is one issue I haven't ...
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780 views

How to find if someone logged into my iPhone

I suspect that someone has logged on my iPhone (physical access, with my code) Is there a report of all connections with the hours that can be found on the iPhone so I can confirm my suspicions? If ...
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9k views

What is `IMDPersistenceAgent` and error in `com.apple.corespotlight.log.index`?

I am see this appear repeatedly in my log. Jan 6 18:23:46 johndoe-macbook com.apple.spotlight.IndexAgent[12337]: [com.apple.corespotlight.log] Not allowed to pass in bundle ID Jan 6 18:23:46 ...
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83 views

CPU freezes after Sierra update

Last night I managed to update to Sierra. Now there is a problem with the OS X speed. I read that there are Spotlight and iPhotos indexing stuff in the background. However, the main CPU usage comes ...
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0answers
2k views

macOS new logging api (unified logging) log stream

Questions: 1) How can we redirect the log stream from stdin to, for example lnav? Currently, I use bash | (pipe), but I would like to hear if there is a better way to do it - the pipe buffer flow is ...
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1k views

Where does Transmission store logs for called scripts?

Transmission has an option to run a shell script when a file finishes downloading. I'm wondering where to look for logs for it – it seems like it only executes half of my script but can't figure out ...
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184 views

Is there any way to view the names of files from before iTunes renamed them?

So here's my sad story guys. I'm a songwriter and I have a ton of audio files on my computer. I spent the last week or so going through them all (some were in iTunes, some were scattered across the HD)...
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13 views

Logging from AppleScript in Automator

I am writing an AppleScript (Run AppleScript item) from within an application in Apple Automator, but the Log panel at the bottom of the window does not display any logged messages (that is, anything ...
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52 views

how remove Apple support screen sharing software

I contacted the Apple support team and the technician asked me to install a software on my macbook so as to share my screen with him. I granted "record screen" permission to this software. A ...
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38 views

macOS removes log files in unwanted way

My computer is used for website development. As part of the website application, I have created log files, which previously had been stored in /var/log/webapps/appname (where appname varies per ...
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26 views

Logs of installed applications

Based on this question: How to read iPhone system logs? Will I find in these logs when applications were installed?
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1answer
93 views

Viewing Logs on Startup volume that freezes

I have a MacBook Pro (Computer A) which freezes / restarts during startup. To investigate the problem, I purchased a brand new internal disk and did a basic installation (10.13 - the latest this model ...
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264 views

What is log message `Failed to remove attribute… “Operation not permitted”` during Time Machine backup?

When my macOS laptop does Time Machine backups, I see in the log a pattern of error messages reading, Failed to remove attribute '…' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "...
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53 views

Diagnosing an intermittent system crash - how to analyse a spindump file

I am trying to figure out the root cause of full system crashes that I am sometimes experiencing in MacOS. It's an ongoing but intermittent issue that I've been encountering both in 10.15 and also in ...
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43 views

Is there a log somewhere that will show when I have done screensharing?

Over the past week, I have been doing a lot of remote access using the Screen Sharing.app. Is there a place that logs when I have used it and for how long? I've looked in the Console.app but haven't ...
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324 views

Remove the “Legacy Software” and “Installations” lists of System Information

There are a couple of programs listed in Legacy Software in the System Information: Is it possible to remove those entries? They are all old apps I've uninstalled, so there is no need to keep those ...
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21 views

How to browse var/log directories in console app as could be done in OS versions prior to Catalina?

In Mac OS prior to Catalina, the left sidebar in the console app would show a directory tree for the /var/log directory and a few other log directories. These could be expanded to navigate logs for ...
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768 views

Getting logs from Apple or iPhone when someone looks up someone's location

Details: Someone close to me and that I trusted logged into my iPhone and turned on Share my Location with their phone. On iMessages I see the note that says iMessage with 3*******78 You started ...
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27 views

How to see the log of specific activity on Mojave?

There are applications (eg. timing app.com) which once installed can log one's daily activity (websites visited, docs opened, time spent on an app etc.), but how can one do this without installing ...
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92 views

How to get LOG_DAEMON syslog messages available via asl

I am attempting to run unbound on my macOS Mojave. This works. I can also log from unbound to a file. That works. But I want to log to syslog. Unbound logs to the LOG_DAEMON (daemon) facility. So I ...
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37 views

Broken macOS High Sierra log system?

With /usr/bin/log I can get information about the mail services from macOS's log system. E.g. /usr/bin/log show --start '2019-08-07 12:50:59' --end '2019-08-07 13:00:59' --predicate '(process == "smtp"...
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108 views

Why has the MacOs Diagnostic Log shown an asterisk in an application path?

SuperDuper! crashed recently, and when looking at the report I found /Applications/Tools/*/SuperDuper!.app/Contents/MacOS/SuperDuper! The surprising part is the *, which I've never seen before. ...
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66 views

How to isolate systemic hangs in macOS 10.14?

I'm struggling with some kind of a hang that is very elusive. Apple can't seem to isolate the problem after many sysdiagnose submissions. It predominantly happens in instances of Google Chrome, Finder ...
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37 views

Someone has files from my Mac on their external hard drive

I have my housemate's old Mac. He still has an account on it, neither of us have each others passwords so we cannot access each others accounts, and public file sharing is turned off (and I don't keep ...
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35 views

How can I debug an unrecognised display in High Sierra?

My external monitor recently stopped being recognised by my MacBook Pro (Early 2011 - 8,2, High Sierra, 10.13.6) I have reset PRAM / SMC and tried a number of troubleshooting steps as outlined in the ...
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20 views

How to troubleshoot spurious restart?

MBP 15 inch 2018, 2.9 GHz i9, 32 GB, 2TB; 10.13.6 If I leave my system unattended for several hours, it will restart itself - as if someone selected applemenu>Restart... Apple has been no help so ...
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0answers
478 views

Disable new macos logging system

My SSD has bad blocks, so I get overwhelmed by those messages: 2018-07-07 21:24:03.950826+0000 0xd0 Default 0x0 0 kernel: (IOStorageFamily) disk1s1: device error. 2018-...
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0answers
92 views

store local1 syslog messages in /var/log/local1.log

I would like to have syslog messages for the local1 facility stored in a file /var/log/local1.log. I've tried managing /etc/asl.conf but can't figure out how to modify it. It seems that Apple is no ...
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0answers
59 views

Based on what criteria are the crash logs of a process automatically deleted?

According to the Apple Tech Note https://developer.apple.com/library/content/technotes/tn2004/tn2123.html, "CrashReporter limits the number of crash log files for any given combination of user, ...
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0answers
51 views

OSX freezes and logs me out when switching workspaces, it doesn't happen everytime and it's not consistant?

I'm running OSX High Sierra 10.13.2. also, where can I collect more info about why this is happening?
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72 views

Are BT MAC addresses of devices requesting BT connections to the Mac logged in High Sierra?

A neighbor of mine has a phone that keeps trying to connect to my Mac. Considering they're probably trying to connect, I'm a little annoyed. Any way I can find the BT MAC logged anywhere by default ...
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134 views

What sort of logs will help me debug why my mac is regularly freezing?

My 2017 iMac running macOS 10.12.6 has a problem that occurs on a roughly weekly basis where the entire system will gradually freeze. The symptoms are that an application will lock up with the ...
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0answers
8k views

How to solve the crashing problems with MacOS Sierra and interpret this log?

I have a Macbook 5,1, and installed a patched version of MacOS Sierra not long time ago. If it matters the battery is not original, and the magsafe is also replaced. It also used to crash often with ...
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0answers
932 views

Airport Extreme firewall logging

I have a newer model (2013) Airport Extreme and have activated remote logging with level 7/debug messages going to a Linux box. However, I find the messages actually getting logged seem minimal, and I ...
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0answers
595 views

How do I access sshd log messages that are in system.log with /usr/bin/syslog?

I am aware that messages on OS X are usually logged in the ASL database which then (based on asl.conf) are also written into files like /var/log/system.log Based on this comment I tried (and failed) ...
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0answers
547 views

webfilterproxyd flooding system.log with HTML content

I happened to look at my system.log today and I discovered that it is full of what appears to be full HTML pages, put there by webfilterproxyd. Here is an example of what I mean: $ head /var/log/...
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524 views

Finder Bus Error 10/Finder freezes and doesn't open a new window

About a month ago, my MacBook Pro from 2008 running OSX Lion 10.7.5 booted up incredibly slowly. I reset the PRAM and removed and put back the battery and that issue resolved itself but after that ...
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0answers
2k views

system.log is flooded with mDNSResponder messages: “queryrecord_result_callback:…”

My Mac is constantly writing the same following error message to system.log: ... Feb 18 15:24:21 MBA mDNSResponder[51]: queryrecord_result_callback: mDNS_Lock: Locking failure! mDNS_busy (1) != ...
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0answers
30 views

How do you turn on crontab logging on Big Sur?

I am running macOS Big Sur 11.2.1 and have several crontab jobs set up and they work fine, but I want to turn on the logging of all of my crontab jobs. I have read that with the recently releases such ...
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27 views

Logs in Console / Disk Usage

With a modern version of macOS, like Big Sur, if you open Console, you see tonnes and tonnes of messages streaming as soon as you press "start". I was wondering, it seems like the chatter ...