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-rw-r--r--network/authbind/README6
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diff --git a/network/authbind/README b/network/authbind/README
index 03a5013a77..81624ae1a2 100644
--- a/network/authbind/README
+++ b/network/authbind/README
@@ -1 +1,5 @@
-authbind allows non-root processes to bind to ports 1 to 511.
+authbind (allows unprivileged processes to bind to low-numbered ports)
+
+authbind allows non-root processes to bind to TCP and UDP ports 1 to 512.
+Access is controlled by config files located in /etc/authbind, and can
+be configured per user (or group), per address, and per port.