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modes (and replace the requiressl boolean). The four options were first spelled out by Magnus Hagander <mha@sollentuna.net> on 2000-08-23 in email to pgsql-hackers, archived here: http://archives.postgresql.org/pgsql-hackers/2000-08/msg00639.php My original less-flexible patch and the ensuing thread are archived at: http://dbforums.com/t623845.html Attached is a new patch, including documentation. To sum up, there's a new client parameter "sslmode" and environment variable "PGSSLMODE", with these options: sslmode description ------- ----------- disable Unencrypted non-SSL only allow Negotiate, prefer non-SSL prefer Negotiate, prefer SSL (default) require Require SSL The only change to the server is a new pg_hba.conf line type, "hostnossl", for specifying connections that are not allowed to use SSL (for example, to prevent servers on a local network from accidentally using SSL and wasting cycles). Thus the 3 pg_hba.conf line types are: pg_hba.conf line types ---------------------- host applies to either SSL or regular connections hostssl applies only to SSL connections hostnossl applies only to regular connections These client and server options, the postgresql.conf ssl = false option, and finally the possibility of compiling with no SSL support at all, make quite a range of combinations to test. I threw together a test script to try many of them out. It's in a separate tarball with its config files, a patch to psql so it'll announce SSL connections even in absence of a tty, and the test output. The test is especially informative when run on the same tty the postmaster was started on, so the FATAL: errors during negotiation are interleaved with the psql client output. I saw Tom write that new submissions for 7.4 have to be in before midnight local time, and since I'm on the east coast in the US, this just makes it in before the bell. :) Jon Jensen |
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| configure | ||
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| COPYRIGHT | ||
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains several language bindings, including C, Perl, Python, and Tcl, as well as a JDBC driver. The ODBC and C++ interfaces have been moved to the PostgreSQL Projects Web Site at http://gborg.postgresql.org for separate maintenance. See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Changes between all PostgreSQL releases are recorded in the file HISTORY. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at ftp://ftp.postgresql.org/pub/. For more information look at our web site located at http://www.postgresql.org/.