Do not grant any users the act as part of the operating system right.Here are the top Windows Server hardening best practices you can implement immediately to reduce the risk of attackers compromising your critical systems and data.
Organizational Security Maintain an inventory record for each server that clearly documents its baseline configuration and records each change to the server. Windows Server Group Policy Disable Administrative Shares Software Before MakingThoroughly test and validate every proposed change to server hardware or software before making the change in the production environment. Windows Server Group Policy Disable Administrative Shares Update Your RiskUse the results to update your risk management plan and maintain a prioritized list of all servers to ensure that security vulnerabilities are fixed in a timely manner. Keep all servers at the same revision level Windows Server Preparation Protect newly installed machines from hostile network traffic until the operating system is installed and hardened. Harden each new server in a DMZ network that is not open to the internet. Windows Server Group Policy Disable Administrative Shares Password To PreventSet a BIOSfirmware password to prevent unauthorized changes to the server startup settings. Disable automatic administrative logon to the recovery console. Configure the device boot order to prevent unauthorized booting from alternate media. Windows Server Installation Ensure the system does not shut down during installation. Use the Security Configuration Wizard to create a system configuration based on the specific role that is needed. Ensure that all appropriate patches, hotfixes and service packs are applied promptly. Security patches resolve known vulnerabilities that attackers could otherwise exploit to compromise a system. After you install Windows Server, immediately update it with the latest patches via WSUS or SCCM. Whenever a patch is released, it should be analyzed, tested and applied in a timely manner using WSUS or SCCM. User Account Security Hardening Ensure your administrative and system passwords meet password best practices. In particular, verify that privileged account passwords are not be based on a dictionary word and are at least 15 characters long, with letters, numbers, special characters and invisible (CTRL ) characters interspersed throughout. Configure account lockout Group Policy according to account lockout best practices. Disallow users from creating and logging in with Microsoft accounts. Network Security Configuration Enable the Windows firewall in all profiles (domain, private, public) and configure it to block inbound traffic by default. Perform an analysis to determine which ports need to be open and restrict access to all other ports. Restrict the ability to access each computer from the network to Authenticated Users only.
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