flowtop: Add command-line option to disable hostname lookup

Add option -n,--no-dns which allows to disable hostname lookup.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: Minor wording tweaks]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 4 insertions, 0 deletions

diff --git a/flowtop.8 b/flowtop.8
index faa1da1..7259e1d 100644
--- a/flowtop.8
+++ b/flowtop.8
@@ -103,6 +103,10 @@ Display ICMP version 4 and version 6 flows.
 .SS -S, --sctp
 Display SCTP flows.
 .PP
+.SS -n, --no-dns
+Don't perform hostname lookup. Only numeric addresses will be shown for flow
+endpoints.
+.PP
 .SS -s, --show-src
 Also show source information of the flow, not only destination information.
 .PP