About the Messages Library The Messages Library holds all messages used for your surveys, such as Invite Emails and End of Survey messages. Each time you. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. If you are running Mac® OS X, you can use the Network Utility application, which is included with Mac OS X, to run the trace route. Launch Network Utility. Note: You can do this through Mac OS X Spotlight by typing Network Utility, and then clicking the Top Hit. Click Traceroute. Enter the domain name for which you want to perform a traceroute.
Mac Library Messagetracer
Nov 09, 2014 Many Mac users are facing Wi-Fi and networking issues after updating to OS X Yosemite.These problems range from slow connections, frequent disconnects, or not being able to connect to the internet at all, despite being on a Wi-Fi network. If you choose the wrong interface, you may end up recording an empty packet trace. For example, if you use the en0 interface on a Mac that has built-in Ethernet but is connected to the Internet over Wi-Fi, your packet trace will include all the traffic over the built-in Ethernet, that is, nothing. Message Trace is a key tool for email admins to troubleshoot and track the health of their organization's mail flow. Message Trace in the Exchange Admin Center (EAC) is a useful tool for tracing messages, but it's visually cluttered and confusing, and it lacks a number of more sophisticated capabilities.
This document will attempt to explain what is involved with the Diagnostics & Usage Privacy checkbox, and how it does its work. This focuses on the mechanics more than what gets submitted.

The process that drives submission is
/System/Library/CoreServices/SubmitDiagInfo
, which is run as an 'always on' system daemon by /System/Library/LaunchDaemons/com.apple.SubmitDiagInfo.plist
launchd daemon. If 'Send diagnostic & usage data to Apple' was previously checked, unchecking it will not immediately disable this process. On the next reboot, SubmitDiagInfo will not launch.Submission usually happens nightly, but
SubmitDiagInfo
can be run manually from the command line to trigger a submission of the information to Apple. If run with no arguments, a 'normal' submission is made.Submission information includes information from
/Library/Logs/DiagnosticReports
, ~/Library/Logs/DiagnosticReports
, and summarized content from /var/log/DiagnosticMessages
.The
DiagnosticReports
directories contain crash logs, stack shots of processes spinning or hanging, and nothing directly normal use. Things typically only end up in those directories when something goes wrong. The files in that directory are plaintext and can be easily inspected by the user./var/log/DiagnosticMessages
is an Apple System Logger store, best viewed with system utilities. To get a high level view of the messages, Console.app can show you generally what is there:
For a more detailed view, you can use the command line:
syslog -d /var/log/DiagnosticMessages -F raw
:Other display formats are available with the
syslog
tool, including xml. Consult the syslog
man page for more information on supported output formats.Something to keep an eye on with these messages is, they will continue to be logged and stored locally even when 'Send diagnostic & usage data to Apple' is unchecked and
SubmitDiagInfo
isn't running. If 'Send diagnostic & usage data to Apple' is ever turned back on, the information that was collected while 'Send diagnostic & usage data to Apple' was unchecked will be sent to Apple.So, how do the logs get there?
These are just syslog messages, and some apps and system services have the logging scattered throughout their code. There's no real way to know beforehand what will or won't generate log messages, and it can change in updates. Some of the log messages are actually in lower level frameworks and libraries that will trigger a log message when a certain function is called, or under certain configurations. System Preferences for example logs the prefpane used and when it is opened. The MAS logs when and which updates are available.
However, some of the most interesting information is logged by
/System/Library/CoreServices/diagnostics_agent
, which is a per-user launchd agent, configured in /System/Library/LaunchAgents/com.apple.diagnostics_agent.plist
. In releases prior to 10.10, the same functionality existed in a UserEventAgent
. The diagnostics_agent
is what logs user behavior. It only dumps its state to the log periodically, although it can be forced by logging out and then logging back in again. For example, here is some messages logged during a logout:This is my best guess of what the fields mean for the com.apple.usage.app_activetime, please update if you find more accurate descriptions:
com.apple.message.signature2
: from the bundle's Info.plist CFBundleIdentifier ||| CFBundleShortVersionString (CFBundleVersion)com.apple.message.value
: total uptime of the app (accross launches, but since the last log timediagnostics_agent
logged the app's usage)com.apple.message.value2
: total time diagnostics_agent believes the user is actively using the appcom.apple.message.value4
: number of transitions from 'active' -> 'idle'. Meaning,diagnostics_agent
believes the app has gone from being actively used to unused. This seems to correspond to switching from foreground to background application, although if you leave the app in the foreground but not have any user input for a couple minutes, it will increment.com.apple.message.value5
: number of launches since the last com.apple.usage.app_activetime for this appcom.apple.message.value6
: number of transitions from 'idle' -> 'active', including launch- SenderMachUUID: the LC_UUID macho load command of the executable generating the log message. Viewable with:
otool -l /System/Library/CoreServices/diagnostics_agent | grep uuid
Since these messages are ASL messages, they are controlled by the ASL daemon. The
MessageTracer
log message location is configured by /etc/asl/com.apple.MessageTracer
to log to /var/log/DiagnosticMessages
. If you change this file, you change where the messages get logged. Additionally, SubmitDiagInfo
does not look at the ASL configuration to see where the message tracer logs are being logged to, it assumes the hard coded path to /var/log/DiagnosticMessages
.ASL, the Apple syslog infrastructure, is open source and available here.
May 29, 2014 A simple, succinct guide to transferring your iTunes Library from one computer to another, while keeping your Playlists and other metadata intact. Subscribe to remain current on Easy Mac Training. How to download itunes library to computer. On your Mac, use the iTunes backup feature to move your library to a new computer. See the Apple Support article Back up and restore your iTunes Library. Connect computers (over a wireless network or with a cable) and copy your iTunes files from one computer to the other. Use iPod or a portable drive to transfer iTunes files. Mar 06, 2019 iMusic - Most Excellent Music Tool to Transfer iTunes Library from Mac to PC Transfer iTunes Library from Mac to PC without erasing or lose the files. Record music in original quality and automatically split the ads. Discover and download music from more than 300,000 songs. Transfer music between any two devices directly without iTunes.
Hopefully the information can allow people to better understand what Diagnostics & Usage data is, where it comes from, how to inspect it, and how to control what gets sent.
With Messages for Mac, you can send unlimited messages to any Mac, iPhone, iPad, or iPod touch that uses iMessage, Apple's secure-messaging service. iPhone owners can use it for SMS and MMS messages, too.
Set up iMessage
iMessage is the Apple messaging service you get automatically with your Apple ID.If it's not already set up, you're asked to sign in when you first open the Messages app. Sign in with same Apple ID that you use with Messages on your iPhone and other devices. It's usually the same Apple ID that you use for iCloud, the iTunes Store, the App Store, and the account you created when you first set up your Mac.
Have a conversation
- Click at the top of the Messages window.
- Address your message by typing the recipient's name, email address, or phone number. Or click and choose a recipient. If they're in your Contacts app, Messages finds them as you type. To start a group conversation, just add more recipients.
- Type your message in the field at the bottom of the window, then press Return to send it.
- To include emoji, click.
- To include an image or other file, just drag or paste it into the message field. Or use Continuity Camera to capture a photo or scan directly from your iPhone or iPad camera.
- To include an audio recording, clickand record your message.
- After starting a conversation, click Details in the corner of the window to take other actions, including:
- Choose not to be disturbed by notifications about this conversation.
- Use FaceTime to start an audio call or video call .
- Share a screen .
- See the recipient's location—if they're sharing their location with you.
- Review all of the photos and files that were exchanged in the conversation.
- Add a group name, add members to a group, or leave a group. If the group has four or more members, you can remove members: Control-click the member's name, then choose Remove from Conversation.
With macOS Sierra or later, you can also use Siri to send, read, and reply to Messages:
- ”Send a message to Susan and Johnny saying I'll be late' or ”Tell Johnny Appleseed the show is about to start” or ”Text a message to 408 555 1212.”
- ”Read the last message from Brian Park” or ”Read my new messages.”
- ”Reply that's great news” or ”Tell him I'll be there in 10 minutes.”
Add a Tapback to a message
macOS Sierra introduces Tapback to the Mac. A Tapback is a quick response that expresses what you think about a message, such as that you like it or think it's funny. In the image above, the heart next to ”See you then!' is a Tapback. Here's how to do it:
- Control-click a message bubble to open a shortcut menu.
- Choose Tapback from the menu.
- Click a Tapback to add it to the message bubble.
Your Tapback is visible to everyone in the conversation who is using iMessage with macOS Sierra or later or iOS 10 or later. Other iMessage users see 'Liked' or 'Laughed at' or 'Emphasized,' for example, followed by the text of that message.
iPhone, iPad, and iPod touch also have Tapback, as well as other message effects available only on those devices. Most such affects look the same on your Mac when you receive them. Others appear as a description of the effect, such as ”(sent with Loud Effect).”
Send text messages to anyone from your Mac
If you have an iPhone with a text messaging plan, learn how to set up text message forwarding so you can send and receive SMS and MMS messages from your Mac.
Delete a message or conversation
When you permanently delete a message or conversation, you can't get it back. So make sure that you save important information from your messages.
To delete a message:
- Open a message conversation.
- Control-click the blank area of a message bubble that you want to delete.
- Choose Delete.
- Click Delete.
To delete a conversation:
- Control-click a conversation.
- Choose Delete Conversation.
- Click Delete.
Learn more
- To learn more about Messages, choose Messages Help from the Help menu in Messages.
- If you get an error when trying to sign in to iMessage, learn what to do.
FaceTime is not available in all countries or regions.