X-Git-Url: https://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/90c126ec61b6fdcf11a04b64d7128f6ce7361282..05aa68a4a08d73f5538bd589b2f950af12bd1989:/blog/index.html diff --git a/blog/index.html b/blog/index.html index 0f2916eff4..646ebd0231 100644 --- a/blog/index.html +++ b/blog/index.html @@ -19,6 +19,60 @@ +
+
Idea for a change to LDAP schemas allowing DNS and DHCP info to be combined into one object
+
2010-06-24 00:35
+
+

A while back, I +complained +about the fact that it is not possible with the provided schemas +for storing DNS and DHCP information in LDAP to combine the two sets +of information into one LDAP object representing a computer.

+ +

In the mean time, I discovered that a simple fix would be to make +the dhcpHost object class auxiliary, to allow it to be combined with +the dNSDomain object class, and thus forming one object for one +computer when storing both DHCP and DNS information in LDAP.

+ +

If I understand this correctly, it is not safe to do this change +without also changing the assigned number for the object class, and I +do not know enough about LDAP schema design to do that properly for +Debian Edu.

+ +

Anyway, for future reference, this is how I believe we could change +the +DHCP +schema to solve at least part of the problem with the LDAP schemas +available today from IETF.

+ +
+--- dhcp.schema    (revision 65192)
++++ dhcp.schema    (working copy)
+@@ -376,7 +376,7 @@
+ objectclass ( 2.16.840.1.113719.1.203.6.6
+        NAME 'dhcpHost'
+        DESC 'This represents information about a particular client'
+-       SUP top
++       SUP top AUXILIARY
+        MUST cn
+        MAY  (dhcpLeaseDN $ dhcpHWAddress $ dhcpOptionsDN $ dhcpStatements $ dhcpComments $ dhcpOption)
+        X-NDS_CONTAINMENT ('dhcpService' 'dhcpSubnet' 'dhcpGroup') )
+
+ +

I very much welcome clues on how to do this properly for Debian +Edu/Squeeze. We provide the DHCP schema in our debian-edu-config +package, and should thus be free to rewrite it as we see fit.

+
+
+ + + + Tags: debian, debian edu, english, nuug. + +
+
+
+
Calling tasksel like the installer, while still getting useful output
2010-06-16 14:55
@@ -682,53 +736,6 @@ following the standards wars of today.

-
-
Sitesummary tip: Listing computer hardware models used at site
-
2010-06-03 12:05
-
-

When using sitesummary at a site to track machines, it is possible -to get a list of the machine types in use thanks to the DMI -information extracted from each machine. The script to do so is -included in the sitesummary package, and here is example output from -the Skolelinux build servers:

- -
-maintainer:~# /usr/lib/sitesummary/hardware-model-summary
-  vendor                    count
-  Dell Computer Corporation     1
-    PowerEdge 1750              1
-  IBM                           1
-    eserver xSeries 345 -[8670M1X]-     1
-  Intel                         2
-  [no-dmi-info]                 3
-maintainer:~#
-
- -

The quality of the report depend on the quality of the DMI tables -provided in each machine. Here there are Intel machines without model -information listed with Intel as vendor and mo model, and virtual Xen -machines listed as [no-dmi-info]. One can add -l as a command line -option to list the individual machines.

- -

A larger list is -available from the the -city of Narvik, which uses Skolelinux on all their shools and also -provide the basic sitesummary report publicly. In their report there -are ~1400 machines. I know they use both Ubuntu and Skolelinux on -their machines, and as sitesummary is available in both distributions, -it is trivial to get all of them to report to the same central -collector.

-
-
- - - - Tags: debian, debian edu, english, sitesummary. - -
-
-
-

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