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http://bugs.exim.org/show_bug.cgi?id=1289
Summary: 10.14: Is there a wrong example?
Product: Exim
Version: 4.80
Platform: Other
URL: http://git.exim.org/exim.git/blob_plain/HEAD:/doc/doc-
docbook/spec.xfpt
OS/Version: All
Status: NEW
Severity: bug
Priority: low
Component: Documentation
AssignedTo: nigel@???
ReportedBy: regid23@???
CC: exim-dev@???
The following patch deletes an example which, I think, is plain wrong.
I did not replaced it with another example because I could not think of
any. There is also a suggested usage for the +ignore_unknown directive
at the next paragraph of the text, where it is mentioned that it can
cancel a previous +include_unknown directive. In fact, is there any
difference between +ignore_unknown and the default behavior?
I think the example is plain wrong because it mentions name lookup
for 192.168.4.5. Yet, in the hosts = < host list> section in ACL
conditions (42.24), it is explicitly stated that
It can test IP addresses without doing any DNS lookups
My understanding is that no DNS lookups on these circumstances is also
implied in the Host list patterns that match by IP address (10.11)
section:
* If the pattern is an IP address, it is matched against the
IP address of the subject host.
--- a/spec.xfpt 2012-08-24 21:35:19.000000000 +0300
+++ b/spec.xfpt 2012-08-24 22:42:09.000000000 +0300
@@ -8240,15 +8240,7 @@ any hosts whose name it cannot find.
.next
If any item that follows &`+ignore_unknown`& requires information that cannot
-be found, Exim ignores that item and proceeds to the rest of the list. For
-example:
-.code
-accept hosts = +ignore_unknown : friend.example : \
- 192.168.4.5
-.endd
-accepts from any host whose name is &'friend.example'& and from 192.168.4.5,
-whether or not its host name can be found. Without &`+ignore_unknown`&, if no
-name can be found for 192.168.4.5, it is rejected.
+be found, Exim ignores that item and proceeds to the rest of the list.
.endlist
Both &`+include_unknown`& and &`+ignore_unknown`& may appear in the same
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