All modern operating systems come equipped with a firewall – a software application that regulates network traffic to a computer. Firewalls create a barrier between a trusted network (like an office ...

Linux may have a reputation for security, but it isn’t perfect. Many distributions also don’t have the best security defaults, so it’s best to implement some best practices for security or use open ...

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nftables provides a simpler, more efficient alternative to iptables, with unified IPv4/IPv6 handling. Features like rule tracing and multi-action rules in nftables enhance network management.

Mastering iptables could take a while, but if you have a few rules to cover the basic security needs, you'll be well on your way to protecting your Linux system. Jack Wallen explains some key rules to ...

Iptables, more properly referred to as “iptables/netfilter” because of the two modules that are involved — the userspace module “iptables” and the kernel ...