Could you modify the existing linux system to also output a suitable bcrypt hash for their password the next time they log in.
Leave that running for a while, and then migrate? This way most active users will have their password migrated for them. The remainder can probably afford to reset their password since they're not using the system very often. On Mon, Oct 19, 2015 at 7:38 AM, Adam Wysocki <bsd-li...@chmurka.net> wrote: > Thank you for all the replies! > > On Sat, 17 Oct 2015, Devin Reade wrote: > >> As you're looking into solutions, make sure you're looking at the right >> problem. Your text sounds like you're migrating system account passwords, > > I'm not. These are passwords for the news server. Users are authenticated > using ckpasswd, which uses crypt(). > > On Sat, 17 Oct 2015, Adam Wolk wrote: > >> Don't know if it works out for you but you could generate ssh keys for >> existing accounts and allow users to access the new system using that >> provided ssh key & set the passwords themselves (or just keep using key >> auth and disabling passwords :)). > > I don't want to force users to do anything, I want this change to be > transparent to them... > > -- > "qui hic minxerit aut cacaverit, habeat deos superos et inferos iratos"