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-rw-r--r--conntrack.87
1 files changed, 5 insertions, 2 deletions
diff --git a/conntrack.8 b/conntrack.8
index f485619..0565907 100644
--- a/conntrack.8
+++ b/conntrack.8
@@ -88,8 +88,11 @@ Show the in-kernel connection tracking system statistics.
Atomically zero counters after reading them. This option is only valid in
combination with the "-L, --dump" command options.
.TP
-.BI "-o, --output [extended,xml,timestamp,id] "
-Display output in a certain format.
+.BI "-o, --output [extended,xml,timestamp,id,ktimestamp] "
+Display output in a certain format. With the extended output option, this tool
+displays the layer 3 information. With ktimestamp, it displays the in-kernel
+timestamp available since 2.6.38 (you can enable it via echo 1 >
+/proc/sys/net/netfilter/nf_conntrack_timestamp).
.TP
.BI "-e, --event-mask " "[ALL|NEW|UPDATES|DESTROY][,...]"
Set the bitmask of events that are to be generated by the in-kernel ctnetlink