ok, that's what I understood. I do have the ssh thing set upproperly (otherwise it would not work at all). The *only* think not working is when magma is run!
John On 5 March 2010 15:26, Dr David Kirkby <[email protected]> wrote: > > > On 5 Mar, 13:53, John Cremona <[email protected]> wrote: >> A while back I reported a problem, but had not much useful feedback. I >> am running a local sage server which runs under the user "sage" and I >> created a pool of other users sage0, ..., sage3 under which the >> individual worksheets run. That basically worked fine, except that I >> could not run magma from a worksheet (by putting %magma in the top of >> the cell) because of some file/directory permissions issue. >> >> Well, I just turned off the pool of worksheet process users, and now >> %magma works fine. (I cannot quite remember what the advantage of the >> user pool was supposed to be.) >> >> Just in case anyone was trying to trouble shoot... >> >> Can anyone else running a server with a pool of users confirm (or >> otherwise) that %magma in a cell works? >> >> John > > From what I understand the advantage of running one username in the > pool is that the user processes run as that user, and so a user can't > crash the server. > > But from what feedback I got from William, there was no advantage in > having more than one username in the pool. The usernames are not > mapped in any way to the pool names. > > The username the server runs under needs to be able to ssh to the > users with no password. i.e. you need to create a key on the server > which has an emptry pass phrase, then copy that to $HOME/.ssh/ > authorized_keys of each username in the pool. > > It would be a lot more secure if one user name was mapped to one user > in the pool, as any user can kill all the processes of everyone else > running under the same user name. > > Dave > > -- > To post to this group, send an email to [email protected] > To unsubscribe from this group, send an email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/sage-devel > URL: http://www.sagemath.org > -- To post to this group, send an email to [email protected] To unsubscribe from this group, send an email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
