example-config: Updated default_*_user comments.

--HG--
branch : HEAD

diff --git a/doc/example-config/conf.d/master.conf b/doc/example-config/conf.d/master.conf
index dd6a72ad502bb898077e433e817fafc1c57c7f35..f00f80a6c6db9d344170d5ca10500e9ccf2df650 100644 (file)
--- a/doc/example-config/conf.d/master.conf
+++ b/doc/example-config/conf.d/master.conf
@@ -2,7 +2,12 @@
 #default_client_limit = 1000
 #default_vsz_limit = 256M
 
+# Login user is internally used by login processes. This is the most untrusted
+# user in Dovecot system. It shouldn't have access to anything at all.
 #default_login_user = dovecot
+
+# Internal user is used by unprivileged processes. It should be separate from
+# login user, so that login processes can't disturb other processes.
 #default_internal_user = dovecot
 
 service imap-login {