Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Walter Tautz
just wondering if this would be a good idea. We currently have
80 machines that do an update once a day on this host so
I think it may be a good idea to mirror the archive locally, say
once a day via rsync?

walter


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Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Giacomo Mulas
On Tue, 9 Dec 2003, Walter Tautz wrote:

 just wondering if this would be a good idea. We currently have
 80 machines that do an update once a day on this host so
 I think it may be a good idea to mirror the archive locally, say
 once a day via rsync?

I have a similar situation and I do mirror security. Of course, in
/etc/apt/sources.list I have both my mirror _and_ security.debian.org, so
that if an update already made it into the mirror all computers get it
from there, otherwise they _still_ get it from security. I also use a
proxy, so that anyway updates get downloaded once even if they come from
security and not from the local mirror. It requires a little bit of work
to properly set it up (not much), but then it works like a charm.

Bye
Giacomo

-- 
_

Giacomo Mulas [EMAIL PROTECTED]
_

OSSERVATORIO ASTRONOMICO DI CAGLIARI
Str. 54, Loc. Poggio dei Pini * 09012 Capoterra (CA)

Tel. (OAC): +39 070 71180 248 Fax : +39 070 71180 222
Tel. (UNICA): +39 070 675 4916
_

When the storms are raging around you, stay right where you are
 (Freddy Mercury)
_


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Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread George Georgalis
On Tue, Dec 09, 2003 at 11:45:22AM -0500, Walter Tautz wrote:
just wondering if this would be a good idea. We currently have
80 machines that do an update once a day on this host so
I think it may be a good idea to mirror the archive locally, say
once a day via rsync?

The Nov ?? Deb weekly news contained:

Debian Package Caching. Jonathan Oxer [11]wrote about caching Debian 
packages in order to save bandwidth when updating or installing   
multiple Debian machines. The [12]apt-cacher utility was originally   
written by Nick Andrew to maintain two Debian systems over a slow
modem connection. It runs as CGI program and only needs to be set up
on one machine.

 11. 
http://articles.linmagau.org/modules.php?op=modloadname=Sectionsfile=indexreq=viewarticleartid=451
 12. http://packages.debian.org/apt-cacher


Haven't tried it yet.

Regards,
// George

-- 
GEORGE GEORGALIS, System Admin/Architectcell: 646-331-2027IXOYE
Security Services, Web, Mail,mailto:[EMAIL PROTECTED] 
Multimedia, DB, DNS and Metrics.   http://www.galis.org/george 


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Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Peter Cordes
On Tue, Dec 09, 2003 at 05:58:51PM +0100, Giacomo Mulas wrote:
 On Tue, 9 Dec 2003, Walter Tautz wrote:
 
  just wondering if this would be a good idea. We currently have
  80 machines that do an update once a day on this host so
  I think it may be a good idea to mirror the archive locally, say
  once a day via rsync?
 
 I have a similar situation and I do mirror security. Of course, in
 /etc/apt/sources.list I have both my mirror _and_ security.debian.org, so
 that if an update already made it into the mirror all computers get it
 from there, otherwise they _still_ get it from security. I also use a
 proxy, so that anyway updates get downloaded once even if they come from
 security and not from the local mirror. It requires a little bit of work
 to properly set it up (not much), but then it works like a charm.

 On a cluster I run, and on my Debian machines at home, I have
/var/cache/apt shared between the nodes with NFS.  I haven't done anything
about sharing package lists yet, so all the nodes have to apt-get update
individually.  I think this is non-optimal, because apt-get update writes
/var/cache/apt/pkgcache.bin (and srcpkgcache.bin), so the contents of those
files depends on which machine did the last apt-get update, and they don't
all have the same things in their sources.list.  (e.g. some have only sarge,
some have stable+unstable, some don't have and deb-src lines.)

 Anyway, it seems to work, and packages only get downloaded once.  I know
that apt does enough locking that NFS sharing /var/cache/apt is safe.

-- 
#define X(x,y) x##y
Peter Cordes ;  e-mail: X([EMAIL PROTECTED] , des.ca)

The gods confound the man who first found out how to distinguish the hours!
 Confound him, too, who in this place set up a sundial, to cut and hack
 my day so wretchedly into small pieces! -- Plautus, 200 BC


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Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Steve Kemp
On Tue, Dec 09, 2003 at 11:45:22AM -0500, Walter Tautz wrote:
 just wondering if this would be a good idea. We currently have
 80 machines that do an update once a day on this host so
 I think it may be a good idea to mirror the archive locally, say
 once a day via rsync?

  The way that I do this is to setup a copy of squid and then
 make apt go via the proxy; this allows all the updated lists
 and deb's to be cached locally.

  You could do something similar with 'apt-cacher', or
 'apt-proxy' without the need to do any explicit mirroring.

Steve
--
# Debian Security Audit Project
http://www.steve.org.uk/Debian/


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Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Walter Tautz
just wondering if this would be a good idea. We currently have
80 machines that do an update once a day on this host so
I think it may be a good idea to mirror the archive locally, say
once a day via rsync?

walter



Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Giacomo Mulas
On Tue, 9 Dec 2003, Walter Tautz wrote:

 just wondering if this would be a good idea. We currently have
 80 machines that do an update once a day on this host so
 I think it may be a good idea to mirror the archive locally, say
 once a day via rsync?

I have a similar situation and I do mirror security. Of course, in
/etc/apt/sources.list I have both my mirror _and_ security.debian.org, so
that if an update already made it into the mirror all computers get it
from there, otherwise they _still_ get it from security. I also use a
proxy, so that anyway updates get downloaded once even if they come from
security and not from the local mirror. It requires a little bit of work
to properly set it up (not much), but then it works like a charm.

Bye
Giacomo

-- 
_

Giacomo Mulas [EMAIL PROTECTED]
_

OSSERVATORIO ASTRONOMICO DI CAGLIARI
Str. 54, Loc. Poggio dei Pini * 09012 Capoterra (CA)

Tel. (OAC): +39 070 71180 248 Fax : +39 070 71180 222
Tel. (UNICA): +39 070 675 4916
_

When the storms are raging around you, stay right where you are
 (Freddy Mercury)
_



Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread George Georgalis
On Tue, Dec 09, 2003 at 11:45:22AM -0500, Walter Tautz wrote:
just wondering if this would be a good idea. We currently have
80 machines that do an update once a day on this host so
I think it may be a good idea to mirror the archive locally, say
once a day via rsync?

The Nov ?? Deb weekly news contained:

Debian Package Caching. Jonathan Oxer [11]wrote about caching Debian 
packages in order to save bandwidth when updating or installing   
multiple Debian machines. The [12]apt-cacher utility was originally   
written by Nick Andrew to maintain two Debian systems over a slow
modem connection. It runs as CGI program and only needs to be set up
on one machine.

 11. 
http://articles.linmagau.org/modules.php?op=modloadname=Sectionsfile=indexreq=viewarticleartid=451
 12. http://packages.debian.org/apt-cacher


Haven't tried it yet.

Regards,
// George

-- 
GEORGE GEORGALIS, System Admin/Architectcell: 646-331-2027IXOYE
Security Services, Web, Mail,mailto:[EMAIL PROTECTED] 
Multimedia, DB, DNS and Metrics.   http://www.galis.org/george 



Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Peter Cordes
On Tue, Dec 09, 2003 at 05:58:51PM +0100, Giacomo Mulas wrote:
 On Tue, 9 Dec 2003, Walter Tautz wrote:
 
  just wondering if this would be a good idea. We currently have
  80 machines that do an update once a day on this host so
  I think it may be a good idea to mirror the archive locally, say
  once a day via rsync?
 
 I have a similar situation and I do mirror security. Of course, in
 /etc/apt/sources.list I have both my mirror _and_ security.debian.org, so
 that if an update already made it into the mirror all computers get it
 from there, otherwise they _still_ get it from security. I also use a
 proxy, so that anyway updates get downloaded once even if they come from
 security and not from the local mirror. It requires a little bit of work
 to properly set it up (not much), but then it works like a charm.

 On a cluster I run, and on my Debian machines at home, I have
/var/cache/apt shared between the nodes with NFS.  I haven't done anything
about sharing package lists yet, so all the nodes have to apt-get update
individually.  I think this is non-optimal, because apt-get update writes
/var/cache/apt/pkgcache.bin (and srcpkgcache.bin), so the contents of those
files depends on which machine did the last apt-get update, and they don't
all have the same things in their sources.list.  (e.g. some have only sarge,
some have stable+unstable, some don't have and deb-src lines.)

 Anyway, it seems to work, and packages only get downloaded once.  I know
that apt does enough locking that NFS sharing /var/cache/apt is safe.

-- 
#define X(x,y) x##y
Peter Cordes ;  e-mail: X([EMAIL PROTECTED] , des.ca)

The gods confound the man who first found out how to distinguish the hours!
 Confound him, too, who in this place set up a sundial, to cut and hack
 my day so wretchedly into small pieces! -- Plautus, 200 BC


signature.asc
Description: Digital signature


Re: Q. Should one mirror debian.security.org? Good or Bad Idea?

2003-12-09 Thread Steve Kemp
On Tue, Dec 09, 2003 at 11:45:22AM -0500, Walter Tautz wrote:
 just wondering if this would be a good idea. We currently have
 80 machines that do an update once a day on this host so
 I think it may be a good idea to mirror the archive locally, say
 once a day via rsync?

  The way that I do this is to setup a copy of squid and then
 make apt go via the proxy; this allows all the updated lists
 and deb's to be cached locally.

  You could do something similar with 'apt-cacher', or
 'apt-proxy' without the need to do any explicit mirroring.

Steve
--
# Debian Security Audit Project
http://www.steve.org.uk/Debian/