[Savannah-cvs] [SavannahArchitecture] (edit) sort domU names alphabetically, add aliases

[karlberry]

??changed:
-The new hardware has eth0 (leftmost when looking from back) orange loopback 
cable to "old" savannah, eth1 (rightmost looking from back) black cable to port 
22 of ge-sw1.qcy. The MACs end with :2c and :2d but there seem to be a 
confusion/swap at boot time (e.g. pxeboot), so don't rely on it.  PXE boot need 
to be enabled by a FSF sysadmin (by switching VLANs).  Danny thinks CD-ROM boot 
won't work with this PXE boot version.  Type F12 and select ``5. gPXE (PCI 
00:09.0)`` to PXE-boot.
The new hardware has eth0 (leftmost when looking from back) orange loopback 
cable to "old" savannah, eth1 (rightmost looking from back) black cable to port 
22 of ge-sw1.qcy. The !MACs end with :2c and :2d but there seem to be a 
confusion/swap at boot time (e.g. pxeboot), so don't rely on it.  PXE boot need 
to be enabled by a FSF sysadmin (by switching !VLANs).  Danny thinks CD-ROM 
boot won't work with this PXE boot version.  Type F12 and select ``5. gPXE (PCI 
00:09.0)`` to PXE-boot.

??changed:
-Here are the subsystems/guests/DomUs we currently use::
Here are the subsystems/guests/!DomUs we currently use::

++added:
* first, the principal host is colonialone.fsf.org (not a virtual server) where 
admins can log in. There's a disabled Apache with a "Savannah downtime" 
frontpage.
* builder: used to rebuild software, Debian packages or kernels. It's separate 
so there's no problem with installing dependencies, testing them, etc. There's 
a pbuilder (cowbuilder) ready for Etch+backports rebuilds.

??changed:
-* vcs-noshell: public services that are accessed through a restricted shell: 
CVS, Git, SVN, Hg, with their respective web browsing apps
-* sftp: public services that are accessed through a restricted shell and allow 
users to write files anywhere they want (using SFTP/SCP/rsync): download, bzr, 
GNU Arch, and an Apache instance to access them
-* internal: runs internal services, like the MySQL database, the Exim MTA 
(with From: and sender rewrite), a Debian mirror. There's also a public Cacti 
instance there.
-* builder: used to rebuild software, Debian packages or kernels. It's separate 
so there's no problem with installing dependencies, testing them, etc. There's 
a pbuilder (cowbuilder) ready for Etch+backports rebuilds.
-* and of course, the host colonialone.fsf.org (not a virtual server) where 
admins can log in. There's a disabled Apache with a "Savannah downtime" 
frontpage.
-
-Access Xen DomUs using 'ssh address@hidden'. You need to run this from the 
Dom0, because some of the guests are only accessible through internal IPs.
* internal: runs internal services, like the !MySQL database, the Exim MTA 
(with From: and sender rewrite), a Debian mirror. There's also a public Cacti 
instance there.
* sftp (aka dl.sv.gnu.org): public services that are accessed through a 
restricted shell and allow users to write files anywhere they want (using 
SFTP/SCP/rsync): download, bzr, GNU Arch, and an Apache instance to access them.
* vcs-noshell (aka vcs in ssh): public services that are accessed through a 
restricted shell: CVS, Git, SVN, Hg, with their respective web browsing apps.

Access these Xen !DomUs using 'ssh address@hidden'. You can also just the short 
names, courtesy of ~/.ssh/config on colonialone. You need to run this from the 
Dom0, because some of the guests are only accessible through internal !IPs.

??changed:
-A: No.  !VServers could share a single filesystem, which was convenient,
-but Xen have all virtual machines on separate filesystems (as it
A: No (unfortunately).  !VServers could share a single filesystem, which was 
convenient,
but Xen has all virtual machines on separate filesystems (as it

??changed:
-You can log from colonialone to any virtual machine, even internal
You can log in from colonialone to any virtual machine, even internal

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