Hi, On macOS 26.4 Beta (25E5218f) （macOS Tahoe 26 Developer Beta ）, the network filter causes network failures or slowdowns. This manifests as Chrome failing to access websites, while Safari can access the same websites without issue. The affected websites can be pinged locally. My situation is similar to this situation.The same question link is: https://github.com/objective-see/LuLu/issues/836 Have you been paying attention to this issue? Hopefully, it can be fixed in the official release. Thank you.

Hi, I developed a network extension program on macOS. I tried to update the program by changing the version number. My update process was to first turn off network filtering via "NEFilterManager.sharedManager.enabled = NO", and then use "[OSSystemExtensionRequest activationRequestForExtension:bundleid queue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0)];" to let the system replace the old network extension program. However, sometimes the old network extension process will become a zombie process like pid=86621 in the figure. As long as the zombie process exists, the network cannot be used. After about 10 minutes, it will be cleared and the network will be available. Restarting Wi-Fi can also clear the zombie process immediately. Why is this? How to avoid this problem?

Hi,team: I need to distribute an mdm configuration file containing the "ServiceManagementManagedLoginItems" service to a large number of company-supervised computers, where com.apple.servicemanagement only supports macOS 13.0+. However, I cannot effectively distinguish whether the device system where the mdm configuration file needs to be installed is greater than 13. Can I directly install the mdm configuration file on all devices? Will installing the mdm configuration file on devices less than 13 have any impact on the system or other configuration items in mdm? The description link of ServiceManagementManagedLoginItems is: https://developer.apple.com/documentation/devicemanagement/servicemanagementmanagedloginitems

Hi,team: I have configured SystemExtensions and WebContentFilter for supervised devices through mdm, and set NonRemovableFromUISystemExtensions in SystemExtensions, but found that my network filter cannot be deleted in macOS10, macOS11 and macOS12, but it can still be turned off by selecting the network filter in the network and choosing to disable the service. However, it cannot be turned off in macOS13, macOS14 and macOS15. How can I prevent supervised devices from turning off the network filter in 10, 11 and 12? The macOS 10.15.7 image is as follows: macOS15.1.1 cannot delete and cannot close the image as follows: Hope to receive your reply！

Hi,team: I know that the MDM system extension configuration parameter RemovableSystemExtensions can only be valid after macOS12+, but can I also use this parameter between macOS10.15-12? Even if he is ineffective. Will this cause any problems with the system. I want to use the same MDM configuration file for the devices I manage, which have systems between macOS10.15-15.I hope to receive your confirmation

Hi, I try to use NSUserDefaults to share some parameter values ​​between the container app and the system extension. I have added the App Group in Signing & Capabilities in both apps. I set it in the container app and read it in the system extension app, but the information I read from the system extension is nil. I tested that I can read the information directly from the container app. Is the system extension running in the sandbox not allowed to read other app information? But the information I see should be OK, as shown below: The container app code is as follows: NSUserDefaults *sharedDefaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.com.yourcompany.shared"]; [sharedDefaults setObject:@"Sample Data" forKey:@"SharedData"]; [sharedDefaults synchronize]; The system expansion reading code is as follows: NSUserDefaults *sharedDefaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.com.yourcompany.shared"]; NSString *data = [sharedDefaults objectForKey:@"SharedData"]; os_log_debug(logHandle, "NSUserDefaults: %{public}@", data);

Hi, I developed a system extension that uses the content filter providers of the network extension. When I am using a VPN, I turn on the network extension and the VPN is disconnected. Can this problem be avoided? How to prevent VPN disconnection

I developed a network filter using system extensions and placed the system extension program in a container app. I activated the extension and enabled the network filter in the/Applications directory through the container app. After that, my container app process exited, and only the system extension program process in the/Library/SystemExtensions directory was running. After booting up and upgrading the macOS system, the system extension program will be launched, and I learned from the link below that the system extension will be launched with the system at startup: https://developer.apple.com/forums/thread/701986 . But I haven't learned from the official documentation of System Extensions and NetworkExtension why system extensions start with the system and what their principles are. Because the container app under the activation system extension/Application did not start. Has the network filter developed for system expansion been registered in the system related files or frameworks? Ensure that it will start after each startup

Hi,team: I am testing a product and found that my 12.6.0 and 14.5.0 computers will cause other app processes to exit when starting my network filter, but 10, 11, 13, and 14.6.1 will not. I can see the exit log of the app from launchd.log. Why is this? The log is as follows: 2024-09-12 19:34:36.783374 (gui/501/app_bundleid [546]) : exited due to SIGPIPE | sent by App[546] 2024-09-12 19:34:36.783383 (gui/501/app_bundleid [546]) : service state: exited 2024-09-12 19:34:36.783386 (gui/501/app_bundleid [546]) : internal event: EXITED, code = 0 2024-09-12 19:34:36.783389 (gui/501/app_bundleid [546]) : job state = exited 2024-09-12 19:34:36.783411 (gui/501 [100005]) : service inactive: app_bundleid 2024-09-12 19:34:36.783414 (gui/501/app_bundleid [546]) : service state: not running 2024-09-12 19:34:36.783582 (pid/546 [App]) : shutting down

I sent the description file through MDM in advance and configured the system extension and web content filter. When my code uses activationRequestForExtension:queue: to activate the system extension, other security app processes will be killed. I received the following message. May I ask why this may be? 2024-09-02 11:42:19.737229 (gui/501/killed_bundleid [679]) : exited due to SIGPIPE | sent by killed_app[679], ran for 301372ms 2024-09-02 11:42:19.737239 (gui/501/killed_bundleid [679]) : service state: exited 2024-09-02 11:42:19.737245 (gui/501/killed_bundleid [679]) : internal event: EXITED, code = 0 2024-09-02 11:42:19.737247 (gui/501/killed_bundleid [679] ]) : job state = exited 2024-09-02 11:42:19.737274 (gui/501 [100003]) : service inactive: killed_bundleid 2024-09-02 11:42:19.737277 (gui/501/killed_bundleid [679]) : service state: not running 2024-09-02 11:42:19.737282 (pid/679 [killed_app]) : shutting down 2024-09-02 11:42:19.737310 (pid/679 [killed_app]) : cleaning up

Hi, Team: Is there any difference in the underlying logic between starting the network filter by configuring the MDM description file through the first connection below and starting the network filter through the second connection in the code? First connection：https://developer.apple.com/documentation/devicemanagement/webcontentfilter?language=objc Second connection： https://developer.apple.com/documentation/networkextension/nefiltermanager?language=objc

Hi,Team: I successfully installed the system extension through MDM and want to uninstall it through RemovableSystemExtensions, but this command does not support versions below macOS 12. Is there any other way to pause or uninstall the system extension? Can I delete the configuration file that allows system extensions through MDM? Or send and delete the configuration file of AllowedSystemExtensions?

Hi, Team: I developed a network filter and used MDM to issue a description file. By configuring AllowedSystemExtensions, I can avoid the reminder of loading system extensions during installation. However, when savingToPreferencesWithCompletionHandler, I will still be reminded that my network data is monitored. How can I configure MDM to avoid this reminder? And why can I still delete the filter from the network filter conditions even though I configured it in mobileconfig in the following way. NonRemovableFromUISystemExtensions com.mysystemextensionid

Hi Team: I first created a macOS app and added a target of the network extension of the system extension to the app. The function of my app is to enable the system extension and allow the network extension. The app only enables the network filter and does not perform other operations. After completion, it will execute [NSApp terminate:nil]; to exit. My network filter can run normally after the app exits, and I use rm -rf to delete the app from /Application, and the network filter can still run normally. This result is what I want, but I don’t know if it is reasonable to delete the app from /Application. My understanding is that the network filter I developed is registered with the system, so it is okay to delete it from /Application. Is this correct?

When I turn on the PAC proxy configuration on my computer, the URL request part in the developed app will overflow the memory, but it will not happen if I turn off PAC