ndc: add page (#17011)

Co-authored-by: Dylan <145150333+dmmqz@users.noreply.github.com>

pages/common/ndc.md

@@ -0,0 +1,37 @@
+# ndc
+
+> Name daemon control service for name servers.
+> If a command isn't provided, NDC will prompt for one until EOF.
+> More information: <https://manned.org/ndc>.
+
+- Set the [c]ontrol channel rendezvous point:
+
+`ndc -c {{channel}} {{command}}`
+
+- Bind the client side to a specific [l]ocalsock address:
+
+`ndc -l {{localsock}} {{command}}`
+
+- Set path to [p]idfile for UNIX signal control:
+
+`ndc -p {{path/to/pidfile}} {{command}}`
+
+- Enable [d]ebugging:
+
+`ndc -d {{command}}`
+
+- Enable [q]uiet mode:
+
+`ndc -q {{command}}`
+
+- Enable nonfatal error [s]uppression:
+
+`ndc -s {{command}}`
+
+- Enable [t]racing for protocol and system debugging:
+
+`ndc -t {{command}}`
+
+- List built-in commands:
+
+`ndc /help`