Suricata Ubuntu PPA updated to 1.4.5 Posted on July 28, 2013 | by inliniac We have updated the official Ubuntu PPA to Suricata 1.4.5. 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.