No longer permit the exim user to be root. Fixes: #752

[users/jgh/exim.git] / doc / doc-txt / NewStuff

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 35ed9a399382d053630fdb71ca2f4d54070ea7e5..03c0d4833f900ccface38360850b478b91295712 100644 (file)
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.169 2010/06/05 23:50:18 pdp Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.172 2010/06/06 02:46:13 pdp Exp $
 
 New Features in Exim
 --------------------
@@ -51,6 +51,30 @@ Version 4.73
       ${reverse_ip:2001:0db8:c42:9:1:abcd:192.0.2.3}
        -> 3.0.2.0.0.0.0.c.d.c.b.a.1.0.0.0.9.0.0.0.2.4.c.0.8.b.d.0.1.0.0.2
 
+ 6. There is a new ACL control called "debug", to enable debug logging.
+    This allows selective logging of certain incoming transactions within
+    production environments, with some care.  It takes two options, "tag"
+    and "opts"; "tag" is included in the filename of the log and "opts"
+    is used as per the -d<options> command-line option.  Examples, which
+    don't all make sense in all contexts:
+
+      control = debug
+      control = debug/tag=.$sender_host_address
+      control = debug/opts=+expand+acl
+      control = debug/tag=.$message_exim_id/opts=+expand
+
+ 7. It has always been implicit in the design and the documentation that
+    "the Exim user" is not root.  src/EDITME said that using root was
+    "very strongly discouraged".  This is not enough to keep people from
+    shooting themselves in the foot in days when many don't configure Exim
+    themselves but via package build managers.  The security consequences of
+    running various bits of network code are severe if there should be bugs in
+    them.  As such, the Exim user may no longer be root.  If configured
+    statically, Exim will refuse to build.  If configured as ref:user then Exim
+    will exit shortly after start-up.  If you must shoot yourself in the foot,
+    then henceforth you will have to maintain your own local patches to strip
+    the safeties off.
+
 
 Version 4.72
 ------------
@@ -94,7 +118,7 @@ Version 4.70 / 4.71
  2. Experimental DCC support via dccifd (contributed by Wolfgang Breyha).
 
  3. There is now a bool{} expansion condition which maps certain strings to
-    true/false condition values (most likely of use in conjuction with the
+    true/false condition values (most likely of use in conjunction with the
     and{} expansion operator).
 
  4. The $spam_score, $spam_bar and $spam_report variables are now available
@@ -118,6 +142,12 @@ Version 4.70 / 4.71
  9. The transport_filter_timeout option now applies to SMTP transports too.
 
 
+Version 4.69
+------------
+
+ 1. Preliminary DKIM support in Experimental.
+
+
 Version 4.68
 ------------