Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-09-01 Thread Charles Plessy
Le Mon, Sep 01, 2008 at 02:50:29PM +0200, Wouter Verhelst a écrit : > > This education could be done in two steps: first, create a policy and > link to it from debian-devel-announce; second, make this required > reading for the NM procedure (similar to the 'DMUP' and 'SC/DFSG' > questions that NMs

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-09-01 Thread Steve Langasek
On Mon, Sep 01, 2008 at 02:50:29PM +0200, Wouter Verhelst wrote: > By setting the "GSSAPICleanupCredentials" option in sshd_config, the > credentials cache is destroyed upon logout (this can also be done > through the session component of libpam_krb5.so). ... but pam_krb5.so shouldn't be used for

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-09-01 Thread Wouter Verhelst
On Sun, Aug 31, 2008 at 11:19:45AM +0200, Peter Palfrader wrote: > On Sat, 30 Aug 2008, Steve Langasek wrote: > > Well, the underlying premise here is, of course, that certain routinely > > useful capabilities need to be taken out of the hands of the users because > > they won't use them responsibl

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-31 Thread Steve McIntyre
On Sun, Aug 31, 2008 at 11:19:45AM +0200, Peter Palfrader wrote: >On Sat, 30 Aug 2008, Steve Langasek wrote: > >> Having your inter-host file transfers sandboxed, such that you have to log >> in to the host on each end in order to get the files copied to the place you >> want them, would be a serio

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-31 Thread Matthew Johnson
On Sat Aug 30 16:43, Steve Langasek wrote: > This is obviously an *incredibly* bad idea for anyone to do if they actually > care about the security of the Debian systems. But we're already talking > about hard policy changes to stop users from doing things they shouldn't do > in the first place (=

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-31 Thread Bastian Blank
On Sat, Aug 30, 2008 at 10:54:59PM -0700, Steve Langasek wrote: > On Sun, Aug 31, 2008 at 01:16:32AM +0200, Bastian Blank wrote: > > Negotiate auth does not provide confidentiality or integrity protection > > different to the normal use of kerberos. > Well, ok, but you're negotiating *authenticatio

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-31 Thread Peter Palfrader
On Sat, 30 Aug 2008, Steve Langasek wrote: > Well, the underlying premise here is, of course, that certain routinely > useful capabilities need to be taken out of the hands of the users because > they won't use them responsibly[1]. > But we're alrea

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-31 Thread Mike Hommey
On Sat, Aug 30, 2008 at 03:01:00PM -0700, Steve Langasek wrote: > On Sat, Aug 30, 2008 at 06:48:57PM +0200, Wouter Verhelst wrote: > > > + once we have a krb realm we could maybe also use it for other > > > stuff like all those web services that require logins. How > > >

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Steve Langasek
On Sun, Aug 31, 2008 at 01:16:32AM +0200, Bastian Blank wrote: > On Sat, Aug 30, 2008 at 06:48:57PM +0200, Wouter Verhelst wrote: > > (for some infathomable reason, the firefox developers consider Negotiate > > authentication to be unsafe with untrusted and/or non-SSL hosts. Dunno > > why that is,

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Steve Langasek
On Sat, Aug 30, 2008 at 05:46:16PM +0200, Peter Palfrader wrote: > > > What other options did we forget? > > - Setup Kerberos, allow it as an additional ssh login variant > Circumvents the entire idea behind this exercise: Assuming an attacker > already has control over one host we want to make

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Bastian Blank
On Sat, Aug 30, 2008 at 06:48:57PM +0200, Wouter Verhelst wrote: > (for some infathomable reason, the firefox developers consider Negotiate > authentication to be unsafe with untrusted and/or non-SSL hosts. Dunno > why that is, and never saw a compelling argument...) Negotiate auth does not provid

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Steve Langasek
On Sat, Aug 30, 2008 at 06:48:57PM +0200, Wouter Verhelst wrote: > > + once we have a krb realm we could maybe also use it for other > > stuff like all those web services that require logins. How > > good is krb support in browsers these days? > Pretty good. Konqueror

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Wouter Verhelst
On Sat, Aug 30, 2008 at 02:32:08PM +0200, Peter Palfrader wrote: > - setup afs > > Using AFS would allow us to use a shared /afs/debian.org tree on all > our systems. AFS does all the magic crypto stuff so you don't have to > worry about Eve sniffing or Mallory tampering with packets. > >

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Peter Palfrader
On Sat, 30 Aug 2008, Bastian Blank wrote: > > Or you use only resolvers that you have a trusted (i.e. ipsec) > > connection to and those need to have a complete axfr'ed zone. > > Then we can drop the whole ud-ldap thing and use centralized > authentication. Um. I don't see why that follows. I

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Bastian Blank
On Sat, Aug 30, 2008 at 05:46:16PM +0200, Peter Palfrader wrote: > On Sat, 30 Aug 2008, Bastian Blank wrote: > > On Sat, Aug 30, 2008 at 02:32:08PM +0200, Peter Palfrader wrote: > > > The crypto stuff could be alleviated by using ipsec between all our > > > servers. But that works even less we

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Peter Palfrader
[Trimming lists] On Sat, 30 Aug 2008, Bastian Blank wrote: > On Sat, Aug 30, 2008 at 02:32:08PM +0200, Peter Palfrader wrote: > > - install sendfile/saft on all machines so you can do > > sendfile foo.tar.gz [EMAIL PROTECTED] > > > > The crypto stuff could be alleviated by using ipsec betw

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread brian m. carlson
On Sat, Aug 30, 2008 at 03:16:01PM +0200, Bastian Blank wrote: On Sat, Aug 30, 2008 at 02:32:08PM +0200, Peter Palfrader wrote: + once we have a krb realm we could maybe also use it for other stuff like all those web services that require logins. How good is krb supp

Re: transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Bastian Blank
On Sat, Aug 30, 2008 at 02:32:08PM +0200, Peter Palfrader wrote: > - install sendfile/saft on all machines so you can do > sendfile foo.tar.gz [EMAIL PROTECTED] > > The crypto stuff could be alleviated by using ipsec between all our > servers. But that works even less well than you'd expe

transfering files between *.debian.org hosts (was: people.debian.org to move to ravel)

2008-08-30 Thread Peter Palfrader
[Let's move this to debian-project since there is no debian-admin-public-bikeshedding. I hope mutt doesn't eat my Mail-Followup-To header.] On Thu, 28 Aug 2008, Peter Palfrader wrote: > > I generally avoid using password authentication to Debian hosts, *except* in > > the particular case of scp'