Suricata Ubuntu PPA updated to 2.1beta4 Posted on May 28, 2015 | by kmisata We have updated the official Ubuntu PPA to Suricata 2.1beta4. To use this PPA read our docs here. If you’re using this PPA, updating is as simple as: apt-get update && apt-get upgrade The PPA Ubuntu packages have IPS mode through NFQUEUE enabled.