I have an installation of ArcServer 10.1 SP1 on windows. I've successfully changed the security store to a custom sql server store as per instructions on help docs. I can even create users and roles using either the rest/admin interface or through arcgis/manager. However, by default (as noted in documentation), I'm required to have at least one "non-alphanumeric character" which I'm familiar with in .net *.config files.
My problem: I can't seem to change this anywhere. I thought the machine.config or web.config file (under web adaptor app in iis) settings would change this, but to no avail.
Question: How can I change this setting ("minRequiredNonalphanumericCharacters") and/or other settings like minimum password length, in the said version of arcgis for server?
Any help is greatly appreciated.