=?UTF-8?B?5oiQ5LmL54SV?= <zhch...@ceresdata.com> writes: > The attached patch is a contrib module to set login restrictions on users > with > too many authentication failure. The administrator could manage several GUC > parameters to control the login restrictions which are listed below. > - set the wait time when password authentication fails. > - allow the wait time grows when users of the same IP consecutively logon > failed. > - set the maximum authentication failure number from the same user. The > system > will prevent a user who gets too many authentication failures from entering > the > database.
I'm not yet forming an opinion on whether this is useful enough to accept. However, I wonder why you chose to add this functionality to auth_delay instead of making a new, independent module. It seems fairly unrelated to what auth_delay does, and the newly-created requirement that the module be preloaded might possibly break some existing use-case for auth_delay. Also, a patch that lacks user documentation and has no code comments to speak of seems unlikely to draw serious review. regards, tom lane