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Peter Müller has announced the release and general availability of IPFire 2.27 Core Update 168 as the latest stable version of this hardened open-source Linux firewall distribution targeted at routers and firewalls.

IPFire 2.27 Core Update 168 is here one and a half months after the Core Update 167 release to further improve the Intrusion Prevention System (IPS) of the Linux firewall distro by allowing users to individually enable the monitoring mode for each ruleset provider, making parsing and restructuring of changed or updated rulesets faster, as well as support for the downloader to automatically check if a ruleset was updated or not on its providers’ server.

IPFire 2.27 Core Update 168 is also here to further improve the overall security of the Linux firewall distribution to prevent network spoofing attacks by dropping any packets that IPFire received on a different interface than it would have been routed back to, implement a defense-in-depth measure to prevent any unprivileged attacker from reading potentially sensitive configuration on an IPFire installation by tightening various file permissions, and updating to OpenSSH 9.0p1, which introduces quantum-resistant cryptography.

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