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Allow incoming traffic from specific protocol.
$ sudo iptables -A INPUT -p ${protocol_name} -j ACCEPT
try on your machine

This command adds a new rule to the INPUT chain of the iptables firewall. The rule allows incoming traffic of a specific protocol (specified by the variable ${protocol_name}) to be accepted and passed through the firewall. The -j ACCEPT option indicates that the traffic matching this rule should be allowed to pass through the firewall. The use of sudo ensures that the command is executed with administrative privileges, allowing it to modify firewall rules.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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