Re: ssl database connection problems...

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On Jan 22, 2009, at 1:27 PM, Ray Stell wrote:

On Thu, Jan 22, 2009 at 10:35:22AM -0500, Carol Walter wrote:
I'm still having problems with ssl. My ssl_ciphers line in postgresql.conf
looks as the following:

ssl_ciphers 'ALL:!ADH:!LOW:@STRENGTH'

this parameter was not available in 8.2.x when I tested so what
I say here has little basis.

1. no equal sign?

Yes, it does need an equal sign. That was a type-o that I just didn't see. Fixed and re-ran. Still doesn't work.

2. isn't this a list of values to choose from so should it be:
    ssl_ciphers='ALL' ???

Yes, This says "All but ADH and low." I changed this line to just be ssl_ciphers = 'ALL' . Stopped, started, and re-ran and it still doesn't connect. The messages in the log file say "cipher or hash unavailable". Since the files of the ciphers are definitely on the system, this suggests that either postgres doesn't know where to find them or the permission on them are wrong.

3. the doc does not say what happens if the the guy is commented
  out: http://www.postgresql.org/docs/8.3/interactive/runtime-config-connection.html#GUC-SSL-CIPHERS
  I wonder what the default is?

The default is
#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH' # allowed SSL ciphers


4. the doc: http://www.postgresql.org/docs/8.3/interactive/ssl- tcp.html
  says: "a list of ciphers can be specified" which makes it sound
  optional, but again, I'm without clue.


It needs a cipher or a hash. I don't know what it might use as a hash. I found the cipher files. Unfortunately, I have two sets because I have two versions of OpenSSL running. This might be part of my problem, but I don't want to take a chance on messing up what's already running. I don't know how to tell postgres which set of cipher files to use. It's in the OpenSSL path, but not the complete path.

Do you have any ideas for me to try to solve this problem?


Thanks,
Carol
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