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网络安全入侵检测系统原码

01-02-01    Welcome to version 1.7. This version features clean compiles
            on following architectures and platforms:

            * Linux 2.0.X, Linux 2.1.X, Linux 2.2.X (i386)
            * FreeBSD 3.x, 4.x (i386)
            * SunOS/gcc 5.5, 5.5.1, 5.6, 5.7, 5.8 (sparc)
            * OpenBSD 2.7, 2.8
            * Tru64/gcc 
            * HPUX 11.0/gcc

            Other platforms/architectures should be supported as well, we just 
            don't have them available for testing on the moment.  
        
            There are a ton of bug fixes and new features in this version, have
            a look at the ChangeLog to see many of them.  I think that this 
            will be the last full point release of the 1.X codebase, we're 
            starting design work on the 2.0 series and I hope that we'll be 
            putting it out there in the not too distant future (less than six
            months!).  

            It's been a long road to 1.7, the amount of code in the program 
            compared to the initial release over two years ago is incredible.
            We're just getting rolling though, and 2.0 is going to bring a 
            great number of changes including more plugin interfaces (packet
            acquisition and decode), faster/cleaner code (I hope ;) and a
            better design for performing more types of analysis.

            Big changes in this version: snort-lib renamed to snort.conf, IP
            defragmentation plugin now 100% on all architectures, tcp stream
            reassembly, statistical anomaly detection, three new command line
            switches (-L,-I,-X), IP address lists, a cool "automatic variable"
            in the rules file that automatically picks up the IP address and
            netmask of a named interface, more packet header printouts, 
            detection plugins for TOS and the IP fragment bits, as well as a
            plugin that allows reference data to be attached to rules and a 
            completely rewritten active response module, etc.

            I hope everyone likes this release, we've put a ton of work into it
            to make sure that it's functional and stable while still being 
            easy to use for everyone.
            
07-22-00    Welcome to version 1.6.3.  This version features clean compiles
            on all architectures and OS's that I have access to, some 
            elusive bug fixes in the decoders, a little bit better 
            packet printing, full-time ARP packet decoding (instead of only
            when the -a option is spec'd), and an upgraded portscan
            detector.  The moral of the story with the 1.6.1->1.6.2.2 
            release cycle was "don't release when you're working on the
            road".  This will be the last version release until the
            Hiverworld IDS ships as I need to dedicate myself fully to
            that cause.  Please watch http://www.snort.org for information
            on the availability for an upgraded defragmentation 
            preprocessor, the one shipping with this version should be
            treated as *beta* code!  

07-08-00    It wouldn't be a relase without a disaster, and in that vein
            we lost the ability to compile cleanly on Linux boxes with 
            version 1.6.1.  Typical.  Lessons learned: I need to reinstall
            a RedHat box at Snort Labs so that I can do compile tests
            before release.  C'est la vie.

07-06-00    Version 1.6.1 is finally ready to see the light of day.  This
            release is mostly a bug fix with a few minor feature additions
            for runtime security.  Version 1.7 is a few months behind in 
            development due to my busy schedule at Hiverworld where I'm 
            putting together a completely new (not Snort-based) IDS.

            Version 1.7 is in development and you can check the latest
            beta functionality by checking it out from the CVS repository.
            The features that have or are going to be added include dynamic
            rules (rules that turn on other rules), variable alert levels,
            port and IP sets for rules, and a few other goodies, plus
            a slew of new plugins.

            Additionally, the snort.org web site has gone live since the
            last release, and it's pretty much a one-stop-shop for all 
            things Snort related (that and www.whitehats.com).

            I hope to have version 1.7 available by the October SANS 
            Network Security 2000 conference.

03-20-00    Bang!  Here's version 1.6, marvel at its glory! :) I'm going
            to keep this short since it's 3AM, but I think that everyone
            is going to like the changes and additions since version 1.5.
            Be sure to check out the new rules writing document at 
            http://www.clark.net/~roesch/snort_rules.html! 

02-26-00    1.6 is still in the works, but this one fixes a few problems
            with people trying to compile on SunOS/Solaris/HP-UX boxes.
            This release really falls more into the "tweak" category, but I
            think it's important enough to put out.  Version 1.6 is coming
            RSN, but will probably be a couple more weeks!

01-03-00    This one is a minor bug fix in preparation for the impending
            release of version 1.6.  Version 1.6 is in beta, but I couldn't
            hold back doing a release of this bug fix version any longer.
            Speaking of 1.6, it should be out in about two weeks, and will
            incorporate a bunch of cool new functionality.  Stay tuned!

12-8-99     Wow, almost two months since the last major release.  Well, if
            you thought the last one was big, this one is HUGE!  There are
            nine major additions to this release, including plugins, 
            session recording, improved flexibility in the rules files,
            better packet content analysis, and a bunch of other stuff.
            Snort is faster, more efficient, more flexible, and more 
            powerful than 1.3.1.  Not bad for two month's work, eh? :)

            What's down the road from here?  Well, the Token Ring decoder
            needs to get finished, and then there are three big topics that
            Snort needs to address: IP defragmentation, TCP stream 
            reassembly, and port scan detection.  Fortunately, the new
            plugin architecture implemented in this version of Snort
            makes the addition of these huge features relatively painless
            from a development standpoint.  The modules can simpley be
            developed and then dropped right into every copy of Snort
            out there.

            The really cool functional (user level) things about version 
            1.5 are session logging with the new "session" keyword, 
            multiple content tests per rule, rules file variables, and the
            IP options inspection keyword "ipopts".  Check out the 
            RULES.SAMPLE file (at the bottom) for more info on the new
            stuff.

10-13-99    Welp, here's the bug fix release.  There was one really big
            stupid bug in this one plus some other minor annoying stuff, 
            so here's a patch to clean things up a bit.  I also added some
            functionality to the dsize option keyword, you can specify
            ">" or "<" now to select ranges.

            2.0 is progressing slowly in the face of various conference 
            activity I have over the next few months.  I'm looking at a late
            November or mid-December release now, but hang in there, it's 
            coming.

09-18-99    This is probably the last 1.x release of Snort (barring a 
            possible bugfix release).  The next planned version is 2.0
            and it will be radically changed for the better.  It will 
            include a faster, more flexible detection engine, plug-in 
            support for detection, output, and monitoring modules, and
            a plethora of other options.  Look for it in late October or
            early November!

            This version includes an enhanced logging/alerting engine that
            is several times faster than the Snort 1.2.1.  The logging
            and alerting command line options are also more streamlined
            so that people may have the flexibility to choose how they log.

            Enjoy!

08-06-99    This is the official "mea culpa" version of Snort.

            Version 1.2 wasn't exactly a high quality release for 
            non-Linux platforms, and so here we are five days later with
            version 1.2.1.  Thanks to everyone's bug reports and a small
            band of volunteers, this release is much more stable than
            version 1.2 and should configure and build cleanly on
            all platforms and architectures, including Sparcs and OpenBSD.

            While all of the bug fixing was taking place, I actually found
            time to integrate some patches that people generously sent in
            during the week.  That kind of makes this release value added,
            it's not just a bug fix there's actually some new stuff in 
            here!