diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-10-03 22:19:25 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-10-04 10:42:43 +0200 |
| commit | 3f845636159298fb18b6d6c455066d0344a61bee (patch) | |
| tree | d440bd11cafbfd7249aaffe5388d7eabcbc44966 /doc/manual | |
| parent | a95338a1715b025bf1b39136ba10de5907c1080b (diff) | |
conntrackd: fix crash if ExpectationSync is enabled on old Linux kernels
ExpectationSync requires Linux kernel >= 3.5 to work sanely, document this.
Still, we don't want to crash if someone enables expectation sync with
old Linux kernels (like 2.6.32).
Reported-by: James Gutholm <gutholmj@evergreen.edu>
Tested-by: James Gutholm <gutholmj@evergreen.edu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'doc/manual')
| -rw-r--r-- | doc/manual/conntrack-tools.tmpl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/manual/conntrack-tools.tmpl b/doc/manual/conntrack-tools.tmpl index 47e6f84..63a53e4 100644 --- a/doc/manual/conntrack-tools.tmpl +++ b/doc/manual/conntrack-tools.tmpl @@ -660,6 +660,13 @@ Sync { <sect3 id="sync-expect"><title>Synchronization of expectations</title> + <note><title>Check your Linux kernel version first</title> + <para> + The synchronization of expectations require a Linux kernel >= 3.5 + to work appropriately. + </para> + </note> + <para>The connection tracking system provides helpers that allows you to filter multi-flow application protocols like FTP, H.323 and SIP among many others. These protocols usually split the control and data traffic in |