home *** CD-ROM | disk | FTP | other *** search
- Sendmail with NeXT enhancements
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- THIS PACKAGE IS STILL IN BETA TEST. DO NOT OBTAIN IT IF YOU DO NOT HAVE
- THE TIME OR INCLANATION TO PUT IT TOGETHER, TEST IT THOROUGHLY AND REPORT
- RESULTS BACK TO ME. A FULL TESTED RELEASE WILL BE MADE WITHIN A COUPLE OF
- WEEKS, PLEASE WAIT FOR THAT IF YOU DO NOT WISH TO TAKE PART IN THE BETA TESTING
-
- This sendmail is a derivative of the near standard Sendmail version
- 5.65c with the IDA 1.4.4.1 enhancements. Additionally it has:-
-
- + The ability to handle NeXT netinfo aliases
- (My mail hub is not a NeXT so this part needs severe testing).
- + RFC931 authentication support (read about this in alt.security
- to decide if you like the idea). I have also recently posted
- a NeXT RFC931 authentication daemon to the ftp archives, although
- that may not yet be in its final home - nidentd-2.0.tar.Z .
- This *can* help in tracking forgeries, but is not foolproof.
- + A rewritten rewriting-rule parser (not as dangerous as it sounds
- - I got this from one of the people working on the next sendmail
- release). It fixes bugs related to map and dbm token lookups,
- and is generally *much* more efficient.
- + Queue checkpointing code - keeps track of what has been
- delivered, which means that when delivery is aborted for some
- reason on a large list of people, the top half of the list don't
- get a second copy of the mail when the queue is processed again.
-
- Compared to the elderly NeXT distribution it also has
- + Handling of large mailing lists (following the report a week or
- so back concerning problems with large mailing lists on a system
- using sendmail 5.65, I tested it running on a NeXT with a list of
- over 4000 names - a 100KB+ :include: file; it works fine, although
- it obviously takes a while to parse all those names!).
- + All the odd NeXT added bugs shouldn't be in there - things like
- the formats of full names should be correct now!
-
-
- BETA RELEASE BITS
- ~~~~~~~~~~~~~~~~~
- Areas that I need examining in detail:-
- + The netinfo alias handling
- + NIS/YP (Whats that??)
- + Interaction with the NeXT supplied named (I run version 4.8.3).
- + Checking that all named functions are OK - like the canonicalise
- functions which my NeXT configs do not use.
- + Functionality with boilerplate config files.
- + Any 3.0 beta testers with time on their hands who want to
- test that it will also work with NeXTstep 3.0.
-
-
- OTHER INFORMATION
- ~~~~~~~~~~~~~~~~~
- Generally the enhancements are transparent to the user/installer.
- The queue checkpointing is enabled using the OC<n> option, where
- <n> is the number sucessful transactions between checkpoints (default 10).
-
- The RFC931 authentication works on mail sent to sendmail,
- and requires that the sending maching is running an RFC931
- authentication daemon or the more recently named identity
- daemons. If this is the case the F macro will be set to the
- username of the owner of the other end of the connection
- (this may be root if a remote sendmail is relaying the mail,
- or it has been queued by a remote sendmail). This also works
- if someone attempts to telnet to port 25 and spoof sendmail that
- way. However it does depend entirely on the other end of the
- connection running authd, and is only as trustworthy as the root
- account on the remote machine. The F Macro can be interpolated into
- the mail Received: headers to give a reasonable track for mail.
- An example of this is the following lines to set up Received: headers:-
- >> HReceived: $?sfrom $s $.by $j$?r with $r$.
- >> (Sendmail $v/$C) id $i
- >> $?Fident-sender: $F$.; $b
- which is basically what is used on our systems.
- ($C is the config file version string).
-
-
- PACKAGING
- ~~~~~~~~~
- There are a set of fairly independant packages:-
- configs The set of IDA configuration files
- docs The documentation files (source only currently)
- ida The IDA specific things, excluding the charset
- mapping which is part of the source tree
- leftovers Anything outside the other catagories
- rcssrc The source in HIDDEN_RCS trees
- src The source required to build the package
- uk-bits Some UK specific config bits - which I have
- not tested at all despite being a UK site.
-
- All of these unpack into a sendmail directory, and fill in different
- parts of the tree.
-
- INSTALLATION
- ~~~~~~~~~~~~
- Currently sendmail compiles and builds for a NeXT system assuming that
- you are using a DNS name server, no NIS/YP (Yellow Pages), Netinfo
- aliases, RFC931 enabled. These can be changed in conf.h
- The RFC931 client code is in a set of files in libauth-4.0, however
- although it is mentioned in the Makefile it can be disabled by
- undefining the RFC931 definitions in conf.h
-
- The installation directory is currently set to be /etc/sendmail
- just as NeXT supply things. However I find it easier to convert it
- to run in /usr/etc/sendmail while I am beta testing - its much
- quicker to replace it with a known working version!
-
- As before, freeze files don't work, and never will without major
- work!
-
- Nigel Metheringham
- nigelm@ohm.york.ac.uk
-