Which Command Is Used to Configure Firewall Linux?
Contents

We will be using “IPTables” the default tool provided in Linux to establish a firewall. Iptables is used to set up, maintain and inspect the tables of the IPv4 and IPv6 packet filter rules in the Linux Kernel. Note:- All the command below need sudo privileges.

Which command is used for firewall in Linux?

This article covers the firewall-cmd terminal command found on most Linux distributions. Firewall-cmd is a front-end tool for managing the firewalld daemon, which interfaces with the Linux kernel’s netfilter framework.

How do I add a firewall to Linux?

Firewall Rule Parameters

  1. Indicates the protocol for the rule.
  2. Possible values are tcp, udp, icmp.
  3. Use “all” to allow all protocols. …
  4. Use either the name (for example: tcp), or the number (for example: 6 for tcp) for protocol.
  5. /etc/protocols file contains all allowed protocol name and number.
  6. You an also use –protocol.
Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.

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