Finally, we are releasing another big release of IPFire. In IPFire 2.23 - Core Update 131, we are rolling out our new Intrusion Prevention System. On top of that, this update also contains a number of other bug fixes and enhancements.
IPFire 2.23, Core Update, finally shipping our recently announced IPS
Thank you very much to everyone who has contributed to this release. If you want to contribute, too, and if you want to support our team to have more new features in IPFire, please donate  today!
A New Intrusion Prevention System
We are finally shipping our recently announced IPS  - making all of your networks more secure by deeply inspecting packets and trying to identify threats.
This new system has many advantages over the old one in terms of performance, security and it simply put - more modern. We would like to thank the team at Suricata  on which it is based for their hard work and for creating such an important tool that is now working inside of IPFire.
We have put together some documentation on how to set up the IPS , what rulesets are supported  and what hardware resources  you will need.
Migration from the older Intrusion Detection System
Your settings will automatically be converted if you are using the existing IDS and replicated with the new IPS. However, you will need to select the ruleset and rules that you want to use again, since those cannot be migrated. Please note that the automatic migration will enable the new IPS, but in monitoring mode only. This is that we won't break any existing configurations. Please disable the monitoring mode if you want the IPS to filter packets, too.
If you restore an old backup, the IDS settings won't be converted.
The guardian add-on is no longer required any more for the IDS to work but still provides means against SSH brute-force attacks and brute-force attacks against the IPFire Web UI.
This release rebases the IPFire kernel on 4.14.113 which brings various bug and security fixes. We have disabled some debugging functionality that we no longer need which will give all IPFire systems a small performance boost.
Updated packages: gnutls 22.214.171.124, lua 5.3.5, nettle 3.4.1, ntp 4.2.8p13, rrdtool 1.7.1, unbound 1.9.1. The wireless regulatory database has also been updated.
• SSH Agent Forwarding: This can now be enabled on the IPFire SSH service which allows administrators to connect to the firewall and use SSH Agent authentication when using the IPFire as a bastion host and connecting onwards to an internal server.
• When multiple hosts are created to overwrite the local DNS zone, a PTR record was automatically created too. Sometimes hosts might have multiple names which makes it desirable to not create a PTR record for an alias which can now be done with an additional checkbox.
• A bug in the firewall UI has been fixed which caused that the rule configuration page could not be rendered when the GeoIP database has not been downloaded, yet. This was an issue when a system was configured, but never connected to the internet before.
• On systems with a vast number of DHCP leases, the script that imports them into the DNS system has been optimised to make sure that they are imported faster and that at no time a half-written file is available on disk which lead unbound to crash under certain circumstances.
• Some minor UI issues on the IPsec VPN pages have been fixed: On editing existing connections, the MTU field is now filled with the default;
• We are no longer trying to search for any temperature sensors on AWS. This caused a large number of error messages in the system log.
• Package updates: borgbackup 1.1.9, dnsdist 1.3.3, freeradius 4.0.18, nginx 1.15.9, postfix 3.4.5, zabbix_agentd 4.2.0
• tor has received an extra firewall chain for custom rules to control outgoing traffic (TOR_OUTPUT). This allows to create rules for traffic that originates from the local tor relay. The service is also running as an own user now.
• Wireless Access Point: It is now possible to enable client isolation so that wireless clients won't be able to communicate with each other through the access point.
• flashrom - A tool to update firmware
 https://www.ipfire.org/donate  https://blog.ipfire.org/post/introducing-ipfire-s-new-intrusion-prevention-system  https://www.suricata-ids.org/  https://wiki.ipfire.org/configuration/firewall/ips/start  https://wiki.ipfire.org/configuration/firewall/ips/rulesets  https://wiki.ipfire.org/configuration/firewall/ips/performance-considerations
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