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Firewall Rules for Applications: How to Safely Allow an App Through
Learn how to configure firewall rules for applications the right way. Open only the ports an app needs with ufw and firewalld instead of disabling your firewall.
Read More »Best Linux Server Firewalls: A Practical Guide for 2026
Compare the best Linux server firewalls: iptables, nftables, UFW, firewalld, and CSF. Learn when to use each, how to layer security, and harden your server.
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