Nmap Announce mailing list archives
making NMAP's job harder on FreeBSD
From: "David O'Brien" <obrien () FreeBSD ORG>
Date: Wed, 18 Aug 1999 10:50:10 -0700
This just went into FreeBSD 4.0-CURRENT (the development branch). I expect it will also appear in 3.3-RELEASE (mid-sept). ----- Forwarded message Date: Wed, 18 Aug 1999 08:40:06 -0700 (PDT) Subject: cvs commit: src/sys/netinet tcp_input.c Modified files: sys/netinet tcp_input.c Log: Slight tweak to tcp.blackhole to add optional behaviour to drop any segment arriving at a closed port. tcp.blackhole=1 - only drop SYN without RST tcp.blackhole=2 - drop everything without RST tcp.blackhole=0 - always send RST - default behaviour This confuses nmap -sF or -sX or -sN quite badly. Revision Changes Path 1.89 +26 -9 src/sys/netinet/tcp_input.c ----- End forwarded message -----
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- making NMAP's job harder on FreeBSD David O'Brien (Aug 18)