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First a comment, although Microsoft seems to have a much better DNS system than on Netware 6.5, their DHCP implementation leaves a lot to be desired.

On Novell I could create a scope, reservations and options and it is stored in eDirectory. I could then have multiple DHCP servers with different IP ranges to offer. I could use the java console (sometime slow) to add a reservation and it would sync to both servers.

On Windows Server 2003 and 2008 I need to separate create scopes, allocation ranges and reservations on each server. Their is no synchronisation or communication between these servers. This means to migrate my reservations from my current Netware DHCP servers to the target Windows servers the reservations need to be added to each server, as well as adding any future reservations to both servers.

Migration Process

First use the Novell DNS/DHCP console and export the DHCP scope / database you are migrating.

I have written the following Perl code to read in the DHCP3TAB file generated and output a netsh file that will add all your reservations to any number of Windows DHCP servers.

You will need to modify the DHCP servers list to your AD servers and change the scopeName to the correct IP settings.

After running your DHCP3TAB through the perl script, copy output to your server and run netsh exec outputFile.txt to add it to your servers.

#!C:\Perl\bin\perl.exe

# Designed to read in Rservations from a Novell DHCP Tab file and output a NetSH script file
# From http://technet.microsoft.com/en-us/library/cc787375.aspx
# On the destination server, the exec command is used to load and execute the converted reservations:
#  netsh exec AdReservations.txt
# After you use the exec command to load the file, you must reconcile all scopes.
# Use net stop dhcpserver to stop the DHCP Server service and net start dhcpserver to restart it. Once the service is restarted, DHCP database changes take effect.

use strict; use warnings;

my $dhcptabName = "DHCP3TAB.txt";
my $outFile = "AdReservations.txt";
my @dhcpServers = ('\\\\DHCPServer1.win.us.schools.nsw.edu.au',
    '\\\\DHCPServer2.win.us.schools.nsw.edu.au');
my $scopeName = "10.10.11.0";

open F, "< $dhcptabName" or die "Can't open $dhcptabName : $!";
open O, "> $outFile" or die "Can't open $outFile : $!";

# File parsing
my $ip;
my $host;
my $mac;
my $type;
my $comment="";

while (my $line = <F>){
  if ($line =~ /^\[IP Address Configuration /i) {
  # New entry, clear values
    $ip="", $host="", $mac="", $type="", $comment="";

    while ((my $entry = <F>) !~ /^$/){
    # Parse and fill in values
      if ($entry =~ /IP Address Number = ([\d.]+)/i){
        $ip=$1;
      }
      elsif ($entry =~ /Assignment Type = (\d+)/i){
        $type=$1;
      }
      elsif ($entry =~ /Host Name = ([\w\-_]+)/i){
        $host=$1;
      }
      elsif ($entry =~ /MAC Address = 1 (.+)/i){
        $mac=$1;
        $mac=~ s/\s+//g;
      }
      elsif ($entry =~ /Comment = (.+)/i){
        $comment=$1;
      }
    }

    # Following determines which type of entries to convert. Default is only reservation.
    # You can comment it out and uncomment the second line to include reservations and allocated IPs.
    # If  type != 8 (reservation) discard
    next unless ($type == 8); 

    # If  type != 8 (reservation) or  != 2 (Allocated) discard
    # next unless  ($type  == 8 or $type  == 2);

    next if ($mac eq "" or $ip eq "" or $host eq "");
    foreach my $server (@dhcpServers){
      print O "Dhcp Server $server Scope $scopeName Add reservedip $ip $mac \"$host\" \"$comment\" \"BOTH\"\n";
    }
  }
}

close F;
close O;

As part of this rename we needed to change their Novell eDirectory account and home directory. We also needed to ensure linked systems such as an LDAP authenticated Moodle site and an IDM linked Active Directory (AD) domain were properly updated.

To perform the user account and folder rename we used Mass User from HBWare. This is a great program we already used for creating and managing home directories and quotas. There was a small bug in the rename area, but it was quickly fixed when brought to Hans’ attention.
Note: Before beginning you need to have a list of the old usernames and the new usernames. A simple two column Excel or CSV file would be fine.

Novell

Create Mapping File: The mapping file is used by Mass User to know what to rename the existing username to.

Use NDS Report ( http://www.novell.com/coolsolutions/tools/13908.html ) to create a list of all the accounts. You only want the DN and CN fields. Save this as an Excel or CSV file.

NDS Report: Select Student OU

NDS Report: Choose only CN

Create a new MS Access file and import the account list
Import the text / excel file that lists the old and new account names.
You now need to create a query that maps the cn to the old account name, and then use this to generate a list of the full old dn and the new account name.

Access: Mapping Query

Access: Query Results

You can then export this as a text file.

Access: Export as text file

Access: Export Delimited

You will need to set the field separate as ‘=’ and set the test qualifier to none.

Access: = as Delimiter and no Text Qualifier

You should end up with each line having format:
OLDNAME.OU.C=NEWNAME
Once the mapping file is generated you can apply it either to individual OUs (e.g. year groups), or to the entire Users container. I would recommend applying to small containers initially to allow checking for errors. After verifying all renames were performed correctly you can then apply the rename to your entire users’ container.

Mass User: Rename

IDM 3.0 – Active Directory

Before doing the mass rename we did some simple tests of renaming eDirectory accounts to see how they replicated to Active Directory. We determined that the individual renames were successfully propagated through IDM to automatically change the pre-2000 and logon name fields to match the new eDirectory account.
When performing the mass rename of accounts, AD was checked after doing each OU to check propagation was successful. We experienced no problems with IDM and all accounts were successfully synchronised with Active Directory.

Moodle

For Moodle we wished for users to retain their own accounts including all their settings and course information. To do this the username stored in the Moodle Database (DB) would need to be changed to the new username.
Before making changes to Moodle I recommend putting the site in admin mode and temporarily disabling your LDAP authentication. I only put the site in Admin mode and then had problems during migration as some students had attempted to logon after I had renamed the eDirectory accounts, but before migrating Moodle accounts. This created new user accounts in Moodle that prevented the update queries running due to duplicate key name problems (ie the old account would not rename to new one if one has already been created with the new name)
First you need to import your list of old and new account names into the database. If you already have it in a separate DB on your Moodle server you can use that, otherwise it is best to just to create a new table in the Moodle DB.
I used this query to check the mapping fields. You will need to adjust the fields and collation types for your own setup.
I use the IDNumber field to store the full DN, if you use a different field you will need to adjust this.

Validation:

# Shows the current username, the new username and the new IDNumber field for validation check.
SELECT mdl.`username` , ern.`StudentId` , replace( `idnumber` , mdl.`username` , ern.`StudentId`
COLLATE latin1_swedish_ci )
FROM moodle.`mdl_user` mdl, sbhsdata.`oasisStudentIdMap` ern
WHERE mdl.`username`
COLLATE latin1_general_ci = ern.`OldStudentId`

Update:

# Replaces the IDNumber field with the new username.
UPDATE moodle.`mdl_user` mdl, sbhsdata.`oasisStudentIdMap` ern
SET `idnumber` = replace( `idnumber` , mdl.`username` , ern.`StudentId` COLLATE latin1_swedish_ci )
WHERE mdl.`username`
COLLATE latin1_general_ci = ern.`OldStudentId`

# Replaces the mdl_user field with the new username.
UPDATE `mdl_user` mdl, `rename` ren
SET mdl.`username` = ren.`newname`
WHERE mdl.`username`= ren.`oldname`
Note: As can be seen by the queries, during the migration I did two separate updates, one to update the IDNumber field and another to update the mdl_user field. When I had completed migration I realised I had only needed to update the mdl_user field as Moodle would automatically update the value in IDNumber at next log on.

Round Up

The migration to the new accounts went well with no problems from student passwords or accounts, although we had a few instances of students using the old username instead of the new one.

Since performing the change we have also implemented a Papercut system which would have required the additional step of renaming all of its accounts to ensure student balances were carried across.

What ABE does is hide any file or folder that a user does not have access to. So for example the folder where you store all your users home drives, would usually appear jam packed with folders, most of which would return an Access Denied error. However, with ABE installed users would only see the folders they have access to, usually their own.

This is great especially if you are coming from a Novell background where this is the standard behaviour. It is also very useful in a school situation to keep the students from seeing things they shouldn’t.

To use ABE you need to download the management tools from Microsoft ABE Management Tools, then after installation either enable it on all shares or bring up properties and manually add it to shares.

A better description and walk through is available WindowsNetworking: Implementing Access-Based Enumeration in Windows Server 2003 R2

Links in this post:

• Windows Server 2003 Access-based Enumeration Overview
• Download Server 2003 Access-based Enumeration
• Implementing Access-Based Enumeration in Windows Server 2003 R2

To see if your mapped drive is considered as either Internet or Local Intranet: first make sure Status Bar is on (View -> Status Bar), then browse to a sub folder of drive and look in lower right hand corner. or

Testing Security Settings or Configure for Individual PC

1. Open the “Internet Options” control panel
2. Click Security Tab, Local Intranet, Sites
3. Untick Automatically detect intranet network then tick Include all local (intranet) sites not listed in other zones and Include all network paths (UNC). I find these are the minimum required. However I find these still occasionally don’t work so I add the server names and server IP range to intranet list.
4. Click Advanced and add the names and IPs of your servers. This should be in form MyServer, and IP ranges as 10.1.1.2-10.
5. Browse to network location and check if Explorer shows Local Intranet in lower right of screen.
   Check if files and applications now open without requiring verification.

Deploying Settings using Group Policies

If performing the above has fixed the problem you probably need to deploy these settings to all users, which can be done using Group Policies.

1. Open the Group Policy for machines affected (this may just be local GPEdit.msc on a terminal server or the Zenworks Workstation Policy in ConsoleOne).
2. Make sure the IE7 version of inetres.adm is loaded (~2.3MB). If not it can be download from MS IE7 ADM.
3. Go to Computer Configuration -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page and set the following:
   • Site to Zone Assignment List:
     Add your server names with a value of 1 to list.
     You can add your server IP range with name “10.x.y.1-30″ and value of 1.
     You may want to add the Windows Update entries with a value of 2.

     http://*.windowsupdate.microsoft.com
     
     http://windowsupdate.microsoft.com
     
     *.windowsupdate.com
     update.microsoft.com

   • Note: Adding items to the Zone Assignment List prevents desktop users adding trusted sites themselves.
   • Disable Turn on Automatic detection of intranet as this only works with Active Directory.
   • Enable Include all local (intranet) sites not listed in other zones and Include all network paths (UNC)
4. Exit Group Policy editor

Other resources:

• MS Admin Templates for Internet Explorer 7
• IE7 and Intranets | Vexentricity

Some additional notes:

To use the DET mail server you can either add mail.det.nsw.edu.au to the mail section of your php.ini file or add it to the
Admin -> Server -> Email: SMTP Hosts section.
If you wish to restrict to sending to DET emails you can add following to the Allowed email domains : “education.nsw.gov.au det.nsw.edu.au“.
Make sure to test the mail server settings before adding any restrictions to domains.

If using Novell or Mac OS you will need to use a different LDAP browser as AD Explorer only works with Active Directory.
For Novell I usually use the free Windows program Softerra LDAP Browser (MSI).
There are a few Java based LDAP browsers that should work with Mac. A good Java based LDAP browser is JXplorer this should work on Mac, Windows and Linux. For some more info on Mac and LDAP look at this article on LDAP in Mac OS X Server from the Mac Dev Center, it is not fully applicable as it also has home drive mapping but it does contain some useful info.

Paul Ganderton has made his Geography HSC site avaliable for guests. You can also view some of the other course on our Moodle site. Look for this logo which means guest access is allowed.

Bulk Operations: Some people asked about bulk deletion of users and courses.
This section has been moved to Moodle: Bulk Deletion Operations.

Presentations:

• Note: There is a file embedded within this post, please visit this post to download the file.
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• Note: There is a file embedded within this post, please visit this post to download the file.
• Note: There is a file embedded within this post, please visit this post to download the file.

Plugins used by Moodle

Some of the items shown during talk are produced by plugins to Moodle. Below is a list of some of our favourites:

• Book: Allows structuring resource pages with chapters and pages.
• Gallery: Shows slide shows and generates thumbnails of images. You can upload a zip file containing an entire folder structure of pictures, and auto-generate albums and sub-albums from it.
• Course Menu: Creates a Tree Structure as a block on side of page to assist navigation.
• Note: There is a file embedded within this post, please visit this post to download the file. On the main SBHS Moodle page there is also a Library block that sends search queries to our Sentral library page. This will need to be customised by schools to point to their Sentral system or the new DET My Library system (only accessible inside DET WAN). Just modify the block_library.php file to point to your Library search page. To install place the library directory in your Moodle blocks folder.