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Firewall

View and edit firewall rules.

OpenPanel supports both ConfigServer Firewall (CSF) and Uncomplicated Firewall (UFW). By default, CSF is installed, but you can choose to install UFW instead by using the --ufw option during installation.

Based on the installed firewall, the OpenAdmin > Firewall page will display either the ConfigServer Firewall UI or the custom UFW interface.

CSF​

If ConfigServer Security & Firewall (CSF) is installed, it's integrated UI will be displayed on OpenAdmin > Firewall.

For instructions on how to use the CSF UI, please refer to ConfigServer Security & Firewall official documentation.

csf firewall

If you need to re-open all necessary ports for OpenPanel services and users, run the command: opencli firewall-reset.

UFW​

If Uncomplicated Firewall (UFW) is installed, our custom interface will be displayed on OpenAdmin > Firewall.

openadmin firewall settings

The firewall settings page provides multiple tabs:

  • IPv4 - View and manage IPv4 firewall rules
  • IPv6 - View and manage IPv6 firewall rules
  • Settings - Manage UFW settings
  • Blacklists - Enable/disable blaklists
  • Logs - view the UFW service log

View rules​

The table shows firewall rules, showcasing information such as rule ID, action, ports, source/destination IP, and the username of the user utilizing the port. For IPv6 rules, navigate to the IPv6 tab.

openadmin firewall ipv6 rules

Add Rules​

To create a new rule click on the 'Add Rule' button and in the modal choose 'ALLOW' to allow the IP address or port, and 'DENY' to block access for IP address or port.

openadmin firewall add rule

Delete Rules​

To delete a rule click on the 'Delete' link next to it, and in the confirmaiton modal click on 'Delete' button.

openadmin firewall delete rule

Settings​

This tab displays the current UFW settings and allows you to configure them.

It shows the current service status and provides options to enable or disable the firewall.

openadmin firewall settings

The following settings are available:

  • Enable IPV6 - Set to yes to apply rules to support IPv6 (no means only IPv6 on loopback accepted). You will need to 'disable' and then 'enable' the firewall for the changes to take affect.
  • Default Input Policy - Set the default input policy to ACCEPT, DROP, or REJECT. Please note that if you change this you will most likely want to adjust your rules.
  • Default Output Policy - Set the default input policy to ACCEPT, DROP, or REJECT. Please note that if you change this you will most likely want to adjust your rules.
  • Allow ping (IPMI) - By default, UFW allows ping requests. You can leave (icmp) ping requests enabled to diagnose networking problems.

The following tools are available:

  • Export IPv4 rules - click to download dall existing IPv4 rules form the UFW service.
  • Export IPv6 rules - click to download dall existing IPv6 rules form the UFW service.
  • Restrict access to Cloudflare only - block access to this server for traffic not coming from Cloudflare IP addresses. This will prevent direct access to the server IP and only allow traffic from Cloudflare netwrork. This is useful when your domains are configured to use the Cloudflare proxy, and you want to block direct access that bypasses Cloudflare's protection. NOTE: This setting affects all users and their services.
  • Reset ports for all users - delete all existing UFW rules and open ports required by OpenPanel, plus custom ports for users.

Blacklists​

Unless the --skip-blacklists flag is provided during the installation of OpenPanel, ipset-blacklists are automatically installed when the --ufw flag is used.

From the OpenAdmin > Security > Firewall > Blacklists page, administrators can easily add blacklists to block IP addresses from known malicious sources.

This feature utilizes the ipset-blacklist service to automate the process of fetching and blocking IPs, providing a straightforward and effective method to enhance system security without manual intervention.

openadmin ufw ipsetblacklists

Default blacklists:

BlacklistURL
AbuseIPDB (DISABLED)https://api.abuseipdb.com/api/v2/blacklist
OpenPanelhttps://api.openpanel.co/blocklist.txt
Spamhaus DROPhttps://www.spamhaus.org/drop/drop.lasso
Spamhaus EDROPhttps://www.spamhaus.org/drop/edrop.lasso
DShieldhttps://www.dshield.org/feeds/suspiciousdomains_Low.txt
FireHOL level1https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level1.netset
FireHOL level2https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level2.netset
FireHOL level3https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level3.netset
FireHOL level4https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level4.netset
Binary Defensehttps://www.binarydefense.com/banlist.txt
blocklist.dehttps://lists.blocklist.de/lists/all.txt

To enable or disable a blacklist in the OpenAdmin interface, click the 'Actions' button for the desired list, then select 'Enable' or 'Disable'.

To delete a blacklist from the OpenAdmin interface, click the 'Actions' button for the desired list, then select 'Delete'.

View logs​

For logs, navigate to the 'Logs' tab.

openadmin firewall logs

External Firewall​

Some cloud providers, like Hetzner, offer their own external firewalls. If you are using an external firewall, ensure the following ports are open for OpenPanel services to be accessible: 53 80 443 2083 2087 32768:60999

If you are using a custom port for OpenPanel instead of the default 2083, ensure that port is open as well.

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