Allow user control over autobinding. Also try ports at random to start

[preload-hacks] / noip.1

diff --git a/noip.1 b/noip.1
index 36b4cf0..d11ce7d 100644 (file)
--- a/noip.1
+++ b/noip.1
@@ -114,6 +114,16 @@ rather than the default.  The environment variable
 .B NOIP_SOCKETDIR
 can also be used to control which directory is used for sockets.
 .TP
+.BI "autoports " min "\-" max
+Select which ports are used for implicit binding.  Allocating ports can
+be a bit slow, since checking whether a Unix domain socket is in use is
+difficult.  A wide range makes things easier, because
+.B noip
+starts by trying ports at random from the given range.  The environment
+variable
+.B NOIP_AUTOPORTS
+can also be used to control which ports are assigned automatically.
+.TP
 .BI "realbind " acl-entry
 Add an entry to the
 .B realbind