How to turn off linux firewall

Turn off the Linux firewall through the following steps: 1. Determine the firewall type (UFW, iptables or nftables); 2. Use the corresponding command to disable the firewall; 3. Confirm that the firewall is turned off; 4. Restart the network service (optional) ).

How to turn off the firewall in Linux

In order to turn off the Linux firewall, you can use the following steps:

1. Determine which firewall to use

• If you are using UFW (Uninterrupted Firewall), please use the following command:

  <code>sudo ufw disable</code>

• If you are using iptables, please use the following command:

  <code>sudo systemctl disable iptables
  sudo systemctl stop iptables</code>

• If you are using nftables, please use the following command:

  <code>sudo nft disable
  sudo systemctl disable nftables
  sudo systemctl stop nftables</code>

2. Confirm that the firewall is turned off

Use the following command to confirm that the firewall is turned off:

• UFW:

  <code>sudo ufw status</code>

• iptables:

  <code>sudo systemctl status iptables</code>

• nftables:

  <code>sudo nft status</code>

You should see something similar to the following Output, indicating the firewall is down:

• UFW:

  <code>Status: inactive</code>

• iptables:

  <code>Loaded: not-found (Reason: No such file or directory)</code>

• nftables ：

  <code>nft disabled</code>

3. Restart the network service (optional)

In some cases, you may need to restart the network service to Make the firewall changes take effect. You can use the following command:

<code>sudo service network restart</code>

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