![]() ![]() It monitors logs, like the ny and hosts.allow files we edited previously. Fail2ban is a service designed to protect you from brute force attacks, and it can misinterpret your authentication attempts as an attack.įail2ban monitors and dynamically alters firewall rules to ban IP addresses that exhibit suspicious behavior. If you’ve tried to connect on multiple occasions, your IP might be blocked by an intrusion prevention software. Keep in mind that such a limiting security setting can affect administering capabilities on your remote servers. By adding the following line, only the following IP would be allowed to establish an SSH connection with your remote server: sshd : 10.10.0.5, LOCAL Subsequently, you can add a single IP address, an IP range, or a hostname to the etc/hosts.allow file. ![]() ![]() For example, a strict security policy within the etc/ny file, would deny access to all hosts: sshd : ALL ![]()
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