Devart Forums

if i look at the following link
https://www.devart.com/dotconnect/postg ... story.html

i see a mention for md5 authentication all the way back in 2003,

18-Dec-03 New features in PostgreSQLDirect .NET 1.50
MD5 and Crypt user authentication methods available

i realise that PostgreSQLDirect morphed into dotconnect provider, but don't understand what kind of changes were involved.

Do we still have the ability to use md5 authentication, i have researched in vain for any kind of documentation on this.

thanks
Nick

The latest version of dotConnect for PostgreSQL 7.4.521 supports MD5 user authentication methods. If you have the corresponding record in the pg_hba.conf config file, it's enough to specify user id and password in the connection string, and the connection will be established using MD5 user authentication methods. For more information, please refer to http://www.postgresql.org/docs/9.2/stat ... -conf.html

thank you for the response.

i had been searching in devart documentation, in vain obviously. I have read the docs but i still don't quite know how the client knows to use MD5. it would defeat the object if it tried clear text password first and then revert to MD5 if that failed. That question is more out of interest, i have done some testing and it seems to work, just don't quite know why.

i have had a really good look at my pg_hba.conf file and removed lots of redundant records that were in there.

if you had any insight into how the client knows to use MD5 i would be interested, otherwise i will do some searching on the web.

issue can be closed, thanks again

nhill383 wrote:if you had any insight into how the client knows to use MD5 i would be interested

PostgreSQL Server itself tells which authentication method (e.g.: MD5) should be used by a provider.