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Snort_inline updated to 2.6.1.4 in SVN
After moving, which went fine, I now finally have some real coding time again. The last week I have been updating and fixing various parts of Snort_inline. The most important change was the update to...
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Differences between Snort and Snort_inline
Every few weeks the same question comes up: what is the difference between Snort in inline mode and Snort_inline. This makes sense, because the Snort_inline documentation and website fail to explain...
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Memory leak fixed in stream4inline
A few days ago William told me that if he enabled stream4inline on a busy gateway, Snort_inline would consume all memory within hours. The problem went away when disabling stream4inline, so it made...
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TCP Window scaling in Snort_inline
The TCP window field in the TCP header is only 16 bits, so the maximum window size it can handle is only 64kb. A long time ago this was enough, but nowadays it isn’t, by far. Luckily, this is something...
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Snort_inline and out of order packets
In Snort_inline’s stream4 modifications, one of the changes is that out of order TCP packets are treated differently from unmodified stream4. This can cause some new alerts to appear and some...
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New Snort_inline TCP window normalization code in SVN
A while ago I wrote about why the TCP window scaling normalization in Snort_inline was broken by design. I also wrote about a new solution I was working on and testing that would be uploaded to SVN...
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