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Security and protection1 min readUpdated

Firewall rules: open ports, allow and block addresses

Which ports are open on a Gen2 server, and how to allow or block an address or a range on all or one port.

The firewall closes every port that is not needed. The Security tab shows what is open and lets you add rules.

Security tab: SSH access and the firewall, with an allow rule and the forms to allow or block.
Security tab: SSH access and the firewall, with an allow rule and the forms to allow or block.

Open to everyone by default: web (http, https), SSH, and the mail ports when email is set up (smtp, submission, smtps, imaps).

RuleExampleUse it for
Allow an IP or range on a port203.0.113.4 on 22/tcpLet your office reach SSH after restricting it, or an ERP reach MariaDB.
Open a port to everyoneLeave the address emptyA service that must be public. Ask us first.
Block an IP or range198.51.100.0/24, all portsAn attacker that keeps coming back from one network.

Blocking at the firewall affects every application and SSH. To refuse a bot on one store only, use Protection blocks.

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Keep reading

All 13 guides
How Gen2 servers are securedThe layers that protect every server: updates, SELinux, firewall, SSH, fail2ban, per-application isolation, bot protection and backups.1 min readBot and overload protection explainedHow the Protection tab keeps bots and botnets from overloading your store, with the settings and what each one does.2 min readThe browser check: what visitors see and when it switches onA short page that stops bots and lets people through. When it runs on its own and how to turn it on or off.1 min read

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