Limit admin login access to IP addresses using ZeroTier

Through the use of ZeroTier VPN, you limit login access to specific IP addresses. Every machine that is connected to the VPN is assigned a private ZeroTier IP address. These private addresses are whitelisted addresses, meaning that only these addresses can access the admin page. With this restriction in place, attackers will first have to infiltrate ZeroTier before they can access the admin page. As a result, restricting admin access to specific IP addresses using ZeroTier can help in the mitigation of brute-force attacks.
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