It's very weird.
On my ubuntu intrepid, it seems the package details can't be updated. I removed it temporarily by aptitude remove.
After sudo aptitude update && sudo aptitude safe-upgrade, I still have
$ aptitude show mysecureshell
Pas de version courante ou candidate trouvée pour mysecureshell
Paquet : mysecureshell
Nouveau: oui
État: non installé
Version : 1.0
Priorité : optionnel
Section : net
Whereas aptitude update works, I'm sure of it. And no matter if I have the lines of the repository in /etc/apt/sources.list. Same results.
On another pc (with jaunty), with the same internet connection and the exact same lines in /etc/apt/sources.list (copy&paste), everything works, package installable.
Do you think it can occur because of my pc ? I'm pretty sure I installed mysecureshell from the repository. I've never seen such a thing.
(I think I will reinstall it by downloading the package to do it quickly, but I'd like to know...).