Tomster/Microsoft-Edge-Policies
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Better fake MDM

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Signed-off-by: Tommy <contact@tommytran.io>
This commit is contained in:
Tommy 2023-12-31 05:10:34 -07:00
parent 4a8a0a7e5f
commit 5d96030638
Signed by: Tomster
GPG Key ID: 555C902A34EC968F
1 changed files with 45 additions and 2 deletions
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README.md
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@ -22,10 +22,53 @@ The mandatory policies should be put in `/etc/opt/edge/policies/managed/managed.
The mandatory policies should be put in `/Library/Managed Preferences/com.microsoft.Edge.plist`, and the recommended policies should be put in `/Library/Preferences/com.microsoft.Edge.plist`
macOS is problematic, as it will wipe `/Library/Managed Preferences` every boot if you are not using an MDM. I work around this by putting the policies in `/Library/Tomster Corporation`, and use a cronjob as root to copy it every boot:
macOS is problematic, as it will wipe `/Library/Managed Preferences` every boot if you are not using an MDM. I work around this by making a fake MDM:
```zsh
umask 022
mkdir -p Library/Tomster Corporation/scripts/ Library/Tomster Corporation/prefs/
```
Create `/Library/PrivSec Corporation/scripts/apply_prefs.sh`:
```
@reboot sleep 5 && cp -r '/Library/Tomster Corporation/' '/Library/Managed Preferences'
#!/bin/zsh
/bin/sleep 5
/bin/cp -r '/Library/PrivSec Corporation/prefs/' '/Library/Managed Preferences/'
```
Set the correct permission:
```zsh
chmod 744 /Library/PrivSec Corporation/scripts/apply_prefs.sh
```
Put the managed policies at `/Library/Tomster Corporation/prefs/com.microsoft.Edge.plist`
Next, create `/Library/LaunchDaemons/io.tommytran.prefs.plist`:
```
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>dev.privsec.prefs</string>
<key>RunAtLoad</key>
<true/>
<key>LaunchOnlyOnce</key>
<true/>
<key>ProgramArguments</key>
<array>
<string>/Library/PrivSec Corporation/scripts/apply_prefs.sh</string>
</array>
</dict>
</plist>
```
Finally, load in the service:
```
sudo launchctl load /Library/LaunchDaemons/dev.privsec.prefs.plist
```
I have also noticed that Microsoft Edge does not seem to reload Managed Preferences probably until the computer reboots. Note that this may not work after a macOS update, and you will need to reboot the computer again for the policies to apply. I am not sure if this is a macOS behavior or if it is caused because my machine is not enrolled in an MDM.