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| author | Mike Silbersack <silby@FreeBSD.org> | 2004-04-22 08:49:51 +0000 |
|---|---|---|
| committer | Mike Silbersack <silby@FreeBSD.org> | 2004-04-22 08:49:51 +0000 |
| commit | fe9892eabd817e794bfcc88098b2f8081ac7a924 (patch) | |
| tree | 1ee4a313e035c71471ba8c65ed649adf0bf7c3bc | |
| parent | 174624e01d01ee25fd6b1dfbc7791fd5c8ef9852 (diff) | |
| download | src-fe9892eabd817e794bfcc88098b2f8081ac7a924.tar.gz src-fe9892eabd817e794bfcc88098b2f8081ac7a924.zip | |
Document the net.inet.ip.portrange.randomized sysctl.
Notes
Notes:
svn path=/head/; revision=128549
| -rw-r--r-- | share/man/man4/ip.4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/share/man/man4/ip.4 b/share/man/man4/ip.4 index 02030393e68e..b82e42171742 100644 --- a/share/man/man4/ip.4 +++ b/share/man/man4/ip.4 @@ -324,6 +324,13 @@ Changing these values departs from tradition and has security consequences that the administrator should carefully evaluate before modifying these settings. +.Pp +Ports are allocated at random within the specified port range in order +to increase the difficulty of random spoofing attacks. In scenarios +such as benchmarking, this behavior may be undesireable. In these +cases, +.Va net.inet.ip.portrange.randomized +can be used to toggle randomization off. .Ss "Multicast Options" .Pp .Tn IP |