Bug #4164
Updated by Dominic Cleal over 11 years ago
When reinstalling Foreman, a new Puppet CA and master cert is generated with a serial number of "1" and "2" respectively. Firefox will remember the issuer (which won't change) and the serial number and throw an SSL mismatch error "sec_error_reused_issuer_and_serial".
Workaround:
Go to Firefox's preferences, Advanced tab, Encryption tab, click View Certificates, Servers tab and delete any entries for your server's hostname in that list. Close the browser completely, reopen and then hopefully it'll prompt you again to add an exception.
(https://bugzilla.redhat.com/show_bug.cgi?id=1055169)