12/25/2020 How To Uninstall App On Mac Os X Mavericks
One of the Mac OS X platform’s security features is Gatekeeper, which was first introduced in 2012 and works with Lion, Mountain Lion, and Mavericks. If a program is downloaded from the Internet and launched, Gatekeeper will first validate its digital signature and choose whether to let it run based on the user’s settings. How has this changed in Mavericks?
First, a background on how exactly Gatekeeper works. The user can allow only applications from the Mac App Store to be run, allow all applications, or applications from the Mac App Store and those with a valid digital signature, which means it comes from an Apple-certified developer. This last setting is the default in Mountain Lion.
How does Gatekeeper know which files to check? It is designed to only operate on files that have the extension attribute of quarantine. When a file is downloaded, the downloading application (usually the browser) marks the program’s extension attribute of quarantine. The origin of the program and time when it was downloaded are also kept in the extension attributes: Best desktop twitter apps mac.
Uninstall apps on mac os x yosemite. 3 min - Uploaded by Anson AlexanderHow to completely uninstall a program or application in Mac OS X Mavericks, Mountain Lion. The Mac App Store has thousands and thousands of great apps to download and install on your Mac.
Figure 1. Extension attributes of a downloaded archive
Even if the application is stored in an archive or disk image, the quarantine attribute is copied over from the original archive or image. The attribute also contains a UUID which can be used by OS X to trace it to the source file, and provide information to the user. How to open itunes app mac. https://furnitureclever682.weebly.com/blog/dark-mode-best-email-app-for-mac.
How Do I Uninstall Apps On MacFigure 2. Extracted file’s inherited attributes
When the user attempts to run an application that does not satisfy Gatekeeper’s settings, it displays an alert as seen below. On previous versions, the alert shows the current Gatekeeper setting; on Mavericks this is not shown.
Figure 3. New and old warning dialogs
If the user wants to run an application blocked by Gatekeeper, they have several options. Gatekeeper could, in effect, be turned off by letting it run all applications. A power user may opt to remove the quarantine attribute or use the spctl command to add a new policy in the security assessment policy subsystem.
Figure 4. Using the “spctl” command to change policies
Mavericks provides a new option. In the Security & Privacy panel of System Preferences, a new option is provided to the user – they can opt to force-launch the last blocked app. Unlike removing the extension attribute or adding a new assessment policy, this is a more user-friendly way to allow the execution of a single unsigned program.
Figure 5. New Mavericks dialog box
The first part of the semicolon-separated quarantine value represents where the file came from. As earlier, Safari downloaded the test program and set the value to 0002. If the user uses the “Open Anyway” option above, this value is modified (the third digit is set to 6). Whatever the previous value is, if the third digit is 6, Gatekeeper will let the application run.
However, this quarantine attribute can also be kept. If the file is transferred to another Mac (if copied using a compatible file system), this setting will also be honored by this other device.
Osx Uninstall AppFigure 6. Quarantine value of allowed program
This highlights a way for an attack to bypass Gatekeeper. If one user allows the execution of an unsigned program on their Mac, the file can be spread to other Macs via ways that keep this attribute (such as shared folders and USB flash disks). On these other systems, the program can be launched without any warning messages.
Figure 7. Gatekeeper allowing an application to run
To summarize: Mavericks provides users an easier way to create exceptions to Gatekeeper and allow unsigned programs to run. However, this was done in such a way that could put other users at risk. It would have been better for Apple to implement this in such a way to keep the exception from being enforced elsewhere; if I want to put myself at risk I shouldn’t be allowed to put other Macs at risk.
Learn how to protect Enterprises, Small Businesses, and Home Users from ransomware:
X11.app was removed from Mac OS X (not sure what version, but it is not included in Mavericks). I do not know why you still have it. I can only guess that you have been doing upgrades, and it is just residual cruft.
I would first check Finder -> File -> Get Info against the X11 app to see if there are any permission problems. The following is from a Mac OS X Leopard system. I'm using it as an example:
Make sure it is not 'Locked', and that the Sharing & Permissions look like the following. Use the Padlock in the lower right to enable changes.
How To Uninstall On A Mac
If that does not work, see if you can drag the X11.app from the Utilities folder to the Desktop, your Downloads folder, your Home folder, anywhere but the Utilities or Applications folders. If you can do that, try rebooting and then deleting it.
If that fails, you can always try a Terminal session, but that is a bit more risky. The command would be:
How To Uninstall App On Mac Os X Mavericks Download
sudo rm -rf /Applications/Utilities/X11.app
How To Uninstall Downloads On Mac
Password: your_account's_password
How To Uninstall App On Mac Os X Mavericks Iso
Aug 23, 2014 7:01 AM
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |