Suricata 1.4rc1 Available!

Photo by Eric LeblondThe OISF development team is proud to announce Suricata 1.4rc1, the first (and hopefully only) release candidate for the upcoming 1.4 version.

This release adds two major new features: a unix socket command mode, allowing for easy processing of large numbers of pcap files, and IP reputation. Both features are considered experimental.

Get the new release here: suricata-1.4rc1.tar.gz

New features

  • Interactive unix socket mode (#571, #552)
  • IP Reputation: loading and matching (#647)
  • Improved –list-keywords commandline option gives detailed info for supported keyword, including doc link (#435)


  • Rule analyzer improvement wrt ipv4/ipv6, invalid rules (#494)
  • User-Agent added to file log and filestore meta files (#629)
  • Endace DAG supports live stats and at exit drop stats (#638)
  • Add support for libhtp event “request port doesn’t match tcp port” (#650)


  • Rules with negated addresses will not be considered IP-only (#599)
  • Rule reloads complete much faster in low traffic conditions (#526)
  • Suricata -h now displays all available options (#419)
  • Luajit configure time detection was improved (#636)
  • Flow manager mutex used w/o initialization (#628)
  • Cygwin work around for windows shell mangling interface string (#372)
  • Fix a Prelude output crash with alerts generated by rules w/o classtype or msg (#648)
  • CLANG compiler build fixes (#649)
  • Several fixes found by code analyzers


We’d like to thank the following people and corporations for their contributions and feedback:

  • Jason Ish — Endace
  • Ludovico Cavedon — Lastline
  • Last G

Known issues & missing features

This is a “release candidate”-quality release so the stability should be good although unexpected corner cases might happen. If you encounter one, please let us know!

As always, we are doing our best to make you aware of continuing development and items within the engine that are not yet complete or optimal. With this in mind, please notice the list we have included of known items we are working on.

See issues for an up to date list and to report new issues. See Known_issues for a discussion and time line for the major issues.

About Suricata

Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine. Open Source and owned by a community run non-profit foundation, the Open Information Security Foundation (OISF). Suricata is developed by the OISF, its supporting vendors and the community.