![]() ![]() Username-based Protection - Whether to enable the username-based protection settings. You can configure the following Configuration Settings options: Username-based protection Therefore, the system disables the UseDNS setting when you enable cPHulk. This allows the attacker to perform a brute force attack against the server with unlimited login attempts. If an attacker spoofs a DNS pointer record to impersonate a trusted hostname, the UseDNS setting and cPHulk’s whitelist will conflict.cPHulk also requests authentication information from PAM to determine whether a login attempt could be a brute force attack. The UseDNS setting sends the hostname to the Password Authentication Module (PAM), which ships with cPanel & WHM, for SSH session authentication. By default, your server enables the UseDNS setting in the /etc/ssh/sshd_config file. ![]()
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June 2023
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