Mac Disable Prompt For Catalina

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Oct 21, 2019 macOS Catalina introduces new security controls. For example, apps are now required to ask your permission before accessing parts of the drive where documents and personal files are kept. Let's take a look at what's new for security in Catalina. Adobe Acrobat Reader DC DOES have an issue that has slipped passed your QA team. Google app for macos. System: MacOS Catalina 10.15.2 Browser: Fire Fox Developer Edition 73.0b1 (64-bit) App: Acrobat Reader DC version 2019.021.20061 (latest version for Mac). Repro Steps: Setup: According to message above, unverified A.

This article is intended for system administrators who set security policy in enterprise environments that require smart card authentication.

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Enable smart card-only login

Make sure that you carefully follow these steps to ensure that users will be able to log in to the computer.

1. Pair a smart card to an admin user account or configure Attribute Matching.
2. If you've enabled strict certificate checks, install any root certificates or intermediates that are required.
3. Confirm that you can log in to an administrator account using a smart card.
4. Install a smart-card configuration profile that includes 'enforceSmartCard,' as shown in the smart card-only configuration profile below.
5. Confirm that you can still log in using a smart card.

For more information about smart card payload settings, see the Apple Configuration Profile Reference.

For more information about using smart card services, see the macOS Deployment Guide or open Terminal and enter man SmartCardServices.

Disable smart card-only authentication

If you manually manage the profiles that are installed on the computer, you can remove the smart card-only profile in two ways. You can use the Profiles pane of System Preferences, or you can use the /usr/bin/profiles command-line tool. For more information, open Terminal and enter man profiles.

If your client computers are enrolled in Mobile Device Management (MDM), you can restore password-based authentication. To do this, remove the smart card configuration profile that enables the smart card-only restriction from the client computers.

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To prevent users from being locked out of their account, remove the enforceSmartCard profile before you unpair a smart card or disable attribute matching. If a user is locked out of their account, remove the configuration profile to fix the issue.

Arp scans your local network for connected devices. Because arp is designed to create and modify address resolution protocols, it  has limited tools available for scanning your network. But it ships on every Mac, and it's a rapid way to get specific information. Scan network for devices macos. Aug 23, 2019  The most powerful tool for scanning your local network on macOS is nmap. Arp is also useful for running a ping sweep across the network. Ipconfig can report results for a specific interface but is more useful for reporting interface information than scanning a network. Nov 02, 2011  Screenshots LanScan is a free, simple and efficient IPv4 network scanner that discovers all active devices on any subnet: the local one, or any public subnet that you configure. For users that are looking for a more robust network scanning and monitoring tool for Mac OS X, you probably want to take a look at WireShark. WireShark is an advanced network monitoring tool for OS X that allows you to view devices on your network as well. NMAP nmap is your best friend for all sorts of network devices scans. Use Zenmap if you need GUI zenmap. Assuming your local network is 192.168.0.0/24 (where 24 means netmask 255.255.255.0) this will give you online hosts with their IP and MAC addresses: nmap -sP 192.168.0.0/24.

If you apply the smart card-only policy before you enable smart card-only authentication, a user can get locked out of their computer. To fix this issue, remove the smart card-only policy:

1. Turn on your Mac, then immediately press and hold Command-R to start up from macOS Recovery. Release the keys when you see the Apple logo, a spinning globe, or a prompt for a firmware password.
   
2. Select Disk Utility from the Utilities window, then click Continue.
   
3. From the Disk Utility sidebar, select the volume that you're using, then choose File > Mount from the menu bar. (If the volume is already mounted, this option is dimmed.) Then enter your administrator password when prompted.
4. Quit Disk Utility.
5. Choose Terminal from the Utilities menu in the menu bar.
6. Delete the Configuration Profile Repository. To do this, open Terminal and enter the following commands.
   In these commands, replace with the name of the macOS volume where the profile settings were installed.
   rm /Volumes//var/db/ConfigurationProfiles/MDM_ComputerPrefs.plist
rm /Volumes//var/db/ConfigurationProfiles/.profilesAreInstalled
rm /Volumes//var/db/ConfigurationProfiles/Settings/.profilesAreInstalled
rm /Volumes//var/db/ConfigurationProfiles/Store/ConfigProfiles.binary
rm /Volumes//var/db/ConfigurationProfiles/Setup/.profileSetupDone
7. When done, choose Apple () menu > Restart.
8. Reinstall all the configuration profiles that existed before you enabled smart card-only authentication.

Configure Secure Shell Daemon (SSHD) to support smart card-only authentication

Users can use their smart card to authenticate over SSH to the local computer or to remote computers that are correctly configured. Follow these steps to configure SSHD on a computer so that it supports smart card authentication.

Update the /etc/ssh/sshd_config file:

1. Use the following command to back up the sshd_config file:
   sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config_backup_`date '+%Y-%m-%d_%H:%M'`
   
2. In the sshd_config file, change '#ChallengeResponseAuthentication yes' to 'ChallengeResponseAuthentication no' and change '#PasswordAuthentication yes' to '#PasswordAuthentication no.'

Then, use the following commands to restart SSHD:

sudo launchctl stop com.openssh.sshd

sudo launchctl start com.openssh.sshd

If a user wants to authenticate SSH sessions using a smart card, have them follow these steps:

1. Use the following command to export the public key from their smart card:
   ssh-keygen -D /usr/lib/ssh-keychain.dylib
2. Add the public key from the previous step to the ~/.ssh/authorized_keys file on the target computer.
3. Use the following command to back up the ssh_config file:
   sudo cp /etc/ssh/ssh_config /etc/ssh/ssh_config_backup_`date '+%Y-%m-%d_%H:%M'`
4. In the/etc/ssh/ssh_config file, add the line 'PKCS11Provider=/usr/lib/ssh-keychain.dylib.'
   

Mac Disable Prompt For Catalina Windows

If the user wants to, they can also use the following command to add the private key to their ssh-agent:

ssh-add -s /usr/lib/ssh-keychain.dylib

Enable smart card-only for the SUDO command

Use the following command to back up the /etc/pam.d/sudo file:

sudo cp /etc/pam.d/sudo /etc/pam.d/sudo_backup_`date '+%Y-%m-%d_%H:%M'`

Then, replace all of the contents of the /etc/pam.d/sudo file with the following text:

Enable smart card-only for the LOGIN command

Use the following command to back up the /etc/pam.d/login file:

sudo cp /etc/pam.d/login /etc/pam.d/login_backup_`date '+%Y-%m-%d_%H:%M'`

Then, replace all of the contents of the/etc/pam.d/login file with the following text:

Enable smart card-only for the SU command

Use the following command to back up the /etc/pam.d/su file:

sudo cp /etc/pam.d/su /etc/pam.d/su_backup_`date '+%Y-%m-%d_%H:%M'`

Then, replace all of the contents of the/etc/pam.d/su file with the following text:

Sample smart card-only configuration profile

Here's a sample smart card-only configuration profile. You can use it to see the kinds of keys and strings that this type of profile includes.

The user account named 'root' is a superuser with read and write privileges to more areas of the system, including files in other macOS user accounts. The root user is disabled by default. If you can log in to your Mac with an administrator account, you can enable the root user, then log in as the root user to complete your task.

The root user account is not intended for routine use. Its privileges allow changes to files that are required by your Mac. To undo such changes, you might need to reinstall your system software. You should disable the root user after completing your task.

It's safer to use the sudo command in Terminal instead of enabling the root user. To learn about sudo, open the Terminal app and enter man sudo.

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Enable or disable the root user

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Enable or disable the root user

1. Choose Apple menu () > System Preferences, then click Users & Groups (or Accounts).
   
2. Click , then enter an administrator name and password.
3. Click Login Options.
4. Click Join (or Edit).
5. Click Open Directory Utility.
6. Click in the Directory Utility window, then enter an administrator name and password.
7. From the menu bar in Directory Utility:
   • Choose Edit > Enable Root User, then enter the password that you want to use for the root user.
   • Or choose Edit > Disable Root User.

Log in as the root user

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When the root user is enabled, you have the privileges of the root user only while logged in as the root user.

1. Choose Apple menu > Log Out to log out of your current user account.
2. At the login window, log in with the user name 'root' and the password you created for the root user.
   If the login window is a list of users, click Other, then log in.

Remember to disable the root user after completing your task.

Change the root password

1. Choose Apple menu () > System Preferences, then click Users & Groups (or Accounts).
2. Click , then enter an administrator name and password.
3. Click Login Options.
4. Click Join (or Edit).
5. Click Open Directory Utility.
6. Click in the Directory Utility window, then enter an administrator name and password.
7. From the menu bar in Directory Utility, choose Edit > Change Root Password…
8. Enter a root password when prompted.