5. Access Control problems

5.1. Always get a login screen - again and again

You try to login with correct login and password. The result are one or two frames with the login screen again.

If your credentials are really correct then there is in the most cases a problem with the Perl module CGI::Session. Old versions of this module have problems with the flushing of data- especially the automatic flushing of data. OpenCA tries to handle this bug but the best solution is to remove the original module from your computer and to install a new one. You can install a new version from CPAN or you install OpenCA again. If OpenCA cannot find this module then it installs an actual version by itself.

5.2. Error 6251023: Aborting connection - you are using a wrong channel

This error message happens if you are using an apache without mod_ssl but you specified mod_ssl in your access control configuration.

5.3. Error 6251026: Aborting connection - you are using a wrong security protocol

This happens if the configuration requires ssl but you are using http to access the interface.

5.4. Error 6251029: Aborting connection - you are using the wrong computer

The access to the interface is only allowed for some computers with special IP addresses and you have not a computer with one of these special addresses.

5.5. Error 6251033: Aborting connection - you are using a wrong asymmetric cipher

There is a problem with the algorithms which mod_ssl and your browser are using. The configuration tries to enforce some special algorithms for security reasons. Please contact your administrators for more informations.

5.6. Error 6251036: Aborting connection - you are using a too short asymmetric keylength

The keylength of your certificate is too short if you are using a certificate. If you don't use a certificate then the Apache itself or your browser only support some too short asymmetric keys. Please contact your local administrators to find out more details.

5.7. Error 6251039: Aborting connection - you are using a wrong symmetric cipher

There is a problem with the algorithms which mod_ssl and your browser are using. The configuration tries to enforce some special algorithms for security reasons. Please contact your administrators for more informations.

5.8. Error 6251043: Aborting connection - you are using a too short symmetric keylength

If your browser startis a connection to webserver via https then the two software components try to negotiate about the cryptoalgorithms which they support. Usually they choose the strongest algorithm and longest keylength. Some export restricted browsers only support too short keylength. This is not allowed in security sensitive areas. Please ask your administrators for the exact specifications of your installation.