From 5285c5e873d8b622da7007c1628e5afa80f372fb Mon Sep 17 00:00:00 2001
From: Bruce Momjian
Date: Thu, 18 Aug 2016 21:41:10 -0400
Subject: doc:  requirepeer is a way to avoid spoofing

We already mentioned unix_socket_directories as an option.

Reported-by: https://www.postgresql.org/message-id/45016837-6cf3-3136-f959-763d06a28076%402ndquadrant.com

Backpatch-through: 9.6
---
 doc/src/sgml/runtime.sgml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index 60a06590fec..98752c2875c 100644
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -1922,7 +1922,7 @@ pg_dumpall -p 5432 | psql -d postgres -p 5433
   </para>
 
   <para>
-   The simplest way to prevent spoofing for <literal>local</>
+   On way to prevent spoofing of <literal>local</>
    connections is to use a Unix domain socket directory (<xref
    linkend="guc-unix-socket-directories">) that has write permission only
    for a trusted local user.  This prevents a malicious user from creating
@@ -1934,6 +1934,13 @@ pg_dumpall -p 5432 | psql -d postgres -p 5433
    <filename>/tmp</> cleanup script to prevent removal of the symbolic link.
   </para>
 
+  <para>
+   Another option for <literal>local</> connections is for clients to use
+   <link linkend="libpq-connect-requirepeer"><literal>requirepeer</></>
+   to specify the required owner of the server process connected to
+   the socket.
+  </para>
+
   <para>
    To prevent spoofing on TCP connections, the best solution is to use
    SSL certificates and make sure that clients check the server's certificate.
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