Re: NFS, password transparency, and security

2002-04-11 Thread Paul Hedderly
On Sun, Apr 07, 2002 at 09:02:56PM -0500, Rob VanFleet wrote: You have three issues: Shared Authentication... Kerberos or LDAP File Sharing Looked at GFS? Could also use NFS I guess. Sigh. Look at autofs Security!

Re: NFS, password transparency, and security

2002-04-11 Thread Paul Hedderly
On Sun, Apr 07, 2002 at 09:02:56PM -0500, Rob VanFleet wrote: You have three issues: Shared Authentication... Kerberos or LDAP File Sharing Looked at GFS? Could also use NFS I guess. Sigh. Look at autofs Security!

Re: NFS, password transparency, and security

2002-04-11 Thread Rob VanFleet
On Wed, Apr 10, 2002 at 12:21:13AM +0100, Gareth Bowker wrote: On Tue, Apr 09, 2002 at 04:02:34PM -0500, Rob VanFleet wrote: On Tue, Apr 09, 2002 at 07:23:28AM -0700, Luca Filipozzi wrote: You run those service locally on each machine only. You don't make them available to other

Re: NFS, password transparency, and security

2002-04-09 Thread Rob VanFleet
On Tue, Apr 09, 2002 at 12:37:27PM +0200, Wichert Akkerman wrote: Previously Alan Shutko wrote: An AFS-based setup is used at many places to great effect, especially on untrusted nets, but I don't know how bad setup is. I suspect it's evil. There is also SFS which works very nicely

Re: NFS, password transparency, and security

2002-04-09 Thread Luca Filipozzi
On Tue, Apr 09, 2002 at 06:51:38AM -0500, Rob VanFleet wrote: After doing some reading about it, the only thing that turns me off to SFS is that you still have to run the usual NFS services for it to work. A large part of the reason I am seeking alternatives is that those services are so

Re: NFS, password transparency, and security

2002-04-09 Thread Rob VanFleet
On Tue, Apr 09, 2002 at 07:23:28AM -0700, Luca Filipozzi wrote: On Tue, Apr 09, 2002 at 06:51:38AM -0500, Rob VanFleet wrote: After doing some reading about it, the only thing that turns me off to SFS is that you still have to run the usual NFS services for it to work. A large part of the

Re: NFS, password transparency, and security

2002-04-09 Thread Gareth Bowker
On Tue, Apr 09, 2002 at 04:02:34PM -0500, Rob VanFleet wrote: On Tue, Apr 09, 2002 at 07:23:28AM -0700, Luca Filipozzi wrote: You run those service locally on each machine only. You don't make them available to other hosts. Sorry if I'm being completely dense here, but aren't the

Re: NFS, password transparency, and security

2002-04-09 Thread Wichert Akkerman
Previously Alan Shutko wrote: An AFS-based setup is used at many places to great effect, especially on untrusted nets, but I don't know how bad setup is. I suspect it's evil. There is also SFS which works very nicely indeed. Wichert. --

Re: NFS, password transparency, and security

2002-04-09 Thread Rob VanFleet
On Tue, Apr 09, 2002 at 12:37:27PM +0200, Wichert Akkerman wrote: Previously Alan Shutko wrote: An AFS-based setup is used at many places to great effect, especially on untrusted nets, but I don't know how bad setup is. I suspect it's evil. There is also SFS which works very nicely

Re: NFS, password transparency, and security

2002-04-09 Thread Luca Filipozzi
On Tue, Apr 09, 2002 at 06:51:38AM -0500, Rob VanFleet wrote: After doing some reading about it, the only thing that turns me off to SFS is that you still have to run the usual NFS services for it to work. A large part of the reason I am seeking alternatives is that those services are so often

Re: NFS, password transparency, and security

2002-04-09 Thread Rob VanFleet
On Tue, Apr 09, 2002 at 07:23:28AM -0700, Luca Filipozzi wrote: On Tue, Apr 09, 2002 at 06:51:38AM -0500, Rob VanFleet wrote: After doing some reading about it, the only thing that turns me off to SFS is that you still have to run the usual NFS services for it to work. A large part of the

Re: NFS, password transparency, and security

2002-04-09 Thread Gareth Bowker
On Tue, Apr 09, 2002 at 04:02:34PM -0500, Rob VanFleet wrote: On Tue, Apr 09, 2002 at 07:23:28AM -0700, Luca Filipozzi wrote: You run those service locally on each machine only. You don't make them available to other hosts. Sorry if I'm being completely dense here, but aren't the ports

Re: NFS, password transparency, and security

2002-04-08 Thread Tarjei Huse
Hi, Just thought I'd chip inn some support for LDAP. Also a kerberos pointer: www.bayour.com has a very good ldap+kerberos howto for debian written by Turbo Fredrikson. Also you should check out directory administrator for admining your directory. A simple ldap client for administrating ldap

Re: NFS, password transparency, and security

2002-04-08 Thread Sami Haahtinen
On Sun, Apr 07, 2002 at 10:36:17PM -0700, Luca Filipozzi wrote: this also allows crackers to access your userbase, unlike libpam-ldap, where you are not forced to allow userpassword read access to the database. The cracker just needs to hack this machine, read the password from config and

Re: NFS, password transparency, and security

2002-04-08 Thread tony mancill
On Sun, 7 Apr 2002, Luca Filipozzi wrote: I suspect that if all your boxes are running Debian that your life will be made easier by all the Debian kerberos packages. This is an interesting thread, and this comment just gave me an idea. What if you use FreeS/WAN (or really, any sort of IPsec)?

Re: NFS, password transparency, and security

2002-04-08 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 09:22:12PM -0700, tony mancill wrote: What if you use FreeS/WAN (or really, any sort of IPsec)? It can be set up in a mode that's called opportunistic encryption that will use IPsec for communication when it's available and allow other traffic to proceed as normal. In

Re: NFS, password transparency, and security

2002-04-08 Thread Sami Haahtinen
On Sun, Apr 07, 2002 at 08:14:26PM -0700, Luca Filipozzi wrote: Two choices (I like lists :) ): (1) use libpam-ldap: i recommend this. Even though the current pam system is a pain to modify.. if you modify one file and it gets updated in the package it will nag about it.. you can't tell if

Re: NFS, password transparency, and security

2002-04-08 Thread Luca Filipozzi
On Mon, Apr 08, 2002 at 08:23:17AM +0300, Sami Haahtinen wrote: On Sun, Apr 07, 2002 at 08:14:26PM -0700, Luca Filipozzi wrote: Two choices (I like lists :) ): (1) use libpam-ldap: i recommend this. I also recommend this. (2) don't use libpam-ldap: You don't have to use

Re: NFS, password transparency, and security

2002-04-08 Thread Tarjei Huse
Hi, Just thought I'd chip inn some support for LDAP. Also a kerberos pointer: www.bayour.com has a very good ldap+kerberos howto for debian written by Turbo Fredrikson. Also you should check out directory administrator for admining your directory. A simple ldap client for administrating ldap

Re: NFS, password transparency, and security

2002-04-08 Thread Sami Haahtinen
On Sun, Apr 07, 2002 at 10:36:17PM -0700, Luca Filipozzi wrote: this also allows crackers to access your userbase, unlike libpam-ldap, where you are not forced to allow userpassword read access to the database. The cracker just needs to hack this machine, read the password from config and

NFS, password transparency, and security

2002-04-07 Thread Rob VanFleet
I have a situation where my superiors are leaning heavily on me to make life more convenient for them by having total availability of data from a group of machines. They basically want to log into any one machine within this group with the same password, and be able to access any disks they

Re: NFS, password transparency, and security

2002-04-07 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 09:02:56PM -0500, Rob VanFleet wrote: I work for several University astronomers who basically want something like what they're used to at other places: a pure sun shop, running NIS and NFS. Two choices for authentication (passwd + shadow): (1) Kerberos Never used

Re: NFS, password transparency, and security

2002-04-07 Thread Alan Shutko
Rob VanFleet [EMAIL PROTECTED] writes: They basically want to log into any one machine within this group with the same password, and be able to access any disks they choose from any pariticular machine (within this group). An AFS-based setup is used at many places to great effect, especially

Re: NFS, password transparency, and security

2002-04-07 Thread Alvin Oga
hi ya why not do the following ??? make one machine be your primary NIS server... - all passwds defined there... all other machines uses the NIS server for passwd authentication and turn on ssh logins ( ~/.shosts ) w/o checking passwd use automounter for

Re: NFS, password transparency, and security

2002-04-07 Thread Rob VanFleet
On Sun, Apr 07, 2002 at 07:39:43PM -0700, Luca Filipozzi wrote: Two choices for authentication (passwd + shadow): (1) Kerberos Never used it. Can't advise you. I've looked at Kerberos, but at least a cursory glance at leaves the impressions that it is ridiculously complicated to set up

Re: NFS, password transparency, and security

2002-04-07 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 10:04:01PM -0500, Rob VanFleet wrote: On Sun, Apr 07, 2002 at 07:39:43PM -0700, Luca Filipozzi wrote: Two choices for authentication (passwd + shadow): (1) Kerberos Never used it. Can't advise you. I've looked at Kerberos, but at least a cursory glance at

Re: NFS, password transparency, and security

2002-04-07 Thread tony mancill
On Sun, 7 Apr 2002, Luca Filipozzi wrote: I suspect that if all your boxes are running Debian that your life will be made easier by all the Debian kerberos packages. This is an interesting thread, and this comment just gave me an idea. What if you use FreeS/WAN (or really, any sort of IPsec)?

Re: NFS, password transparency, and security

2002-04-07 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 09:22:12PM -0700, tony mancill wrote: What if you use FreeS/WAN (or really, any sort of IPsec)? It can be set up in a mode that's called opportunistic encryption that will use IPsec for communication when it's available and allow other traffic to proceed as normal.

Re: NFS, password transparency, and security

2002-04-07 Thread Sami Haahtinen
On Sun, Apr 07, 2002 at 08:14:26PM -0700, Luca Filipozzi wrote: Two choices (I like lists :) ): (1) use libpam-ldap: i recommend this. Even though the current pam system is a pain to modify.. if you modify one file and it gets updated in the package it will nag about it.. you can't tell if

NFS, password transparency, and security

2002-04-07 Thread Rob VanFleet
I have a situation where my superiors are leaning heavily on me to make life more convenient for them by having total availability of data from a group of machines. They basically want to log into any one machine within this group with the same password, and be able to access any disks they

Re: NFS, password transparency, and security

2002-04-07 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 09:02:56PM -0500, Rob VanFleet wrote: I work for several University astronomers who basically want something like what they're used to at other places: a pure sun shop, running NIS and NFS. Two choices for authentication (passwd + shadow): (1) Kerberos Never used

Re: NFS, password transparency, and security

2002-04-07 Thread Alan Shutko
Rob VanFleet [EMAIL PROTECTED] writes: They basically want to log into any one machine within this group with the same password, and be able to access any disks they choose from any pariticular machine (within this group). An AFS-based setup is used at many places to great effect, especially

Re: NFS, password transparency, and security

2002-04-07 Thread Alvin Oga
hi ya why not do the following ??? make one machine be your primary NIS server... - all passwds defined there... all other machines uses the NIS server for passwd authentication and turn on ssh logins ( ~/.shosts ) w/o checking passwd use automounter for

Re: NFS, password transparency, and security

2002-04-07 Thread Rob VanFleet
On Sun, Apr 07, 2002 at 07:39:43PM -0700, Luca Filipozzi wrote: Two choices for authentication (passwd + shadow): (1) Kerberos Never used it. Can't advise you. I've looked at Kerberos, but at least a cursory glance at leaves the impressions that it is ridiculously complicated to set up and

Re: NFS, password transparency, and security

2002-04-07 Thread Luca Filipozzi
On Sun, Apr 07, 2002 at 10:04:01PM -0500, Rob VanFleet wrote: On Sun, Apr 07, 2002 at 07:39:43PM -0700, Luca Filipozzi wrote: Two choices for authentication (passwd + shadow): (1) Kerberos Never used it. Can't advise you. I've looked at Kerberos, but at least a cursory glance at