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Update documentation regarding FLOW_FILTER

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2010-02-11 14:35:12 -08:00
parent b35f20b403
commit 757fea7467
1 changed files with 13 additions and 6 deletions
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19
Shorewall/releasenotes.txt
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@ -211,12 +211,19 @@ Shorewall 4.4.7
5) Previously, specifying a TYPE in /etc/shorewall/tcinterfaces would
cause start/restart to fail on systems lacking 'flow' classifier
support. While we currently know of no safe way to test for that
support, in Shorewall 4.4.7 we use other hints to surmise that the
installed toolset is likely to be too old to support 'flow' and
simply ignore the TYPE setting. In particular, RHEL5 and
derivatives no lonter experience a startup failure when TYPE is
specified.
support. In Shorewall 4.4.7, we detect the ability of the 'tc'
utility to support that classifier.
There are two caveats:
- 'tc' may support 'flow' but the kernel does not. In that case,
start/restart will still fail.
- If you use a capabilities file, you will need to regenerate the
file using shorewall-lite 4.4.7 in order for 'flow' to be
accurately detected. If you do not regenerate the file, the
compiler will use other hints to try to determine if 'flow' is
available.
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