Thursday 21 October 2010

Error during the configuration of the host:Failed to update the disk partition information

vSphere client issues this error when creating storage on an iSCSI SAN, in this caseMD3200i

Error during the configuration of the host:Failed to update the disk partition information

This was cuased by me etting the LUN paths to Round Robin rather than Fixed which was the VMware default.

Wednesday 20 October 2010

How to move a DHCP database from a computer that is running Windows Server 2003 to Windows Server 2008

Export the DHCP database from Windows 2003:







1. On the Windows 2003 DHCP server, navigate to a command prompt
2. Type the following Command: netsh
3. Type the following Command: DHCP
4. Type the following Command: server name or ip address
5. Type the following Command: export c:\w2k3DHCPdb all

Note You must have local administrator permissions to export the data.

Import the DHCP database


1. Copy the exported DHCP database file to the local hard disk of the Windows Server 2008-based computer.
2. Install the DHCP Role on the server.
3. Stop the DHCP server service on the server. To do this, follow these steps:

a. Log on to the target DHCP server by using an account that is a member of the local Administrators group.

b. Click Start, click Run, type cmd in the Open box, and then click OK.


c. At the command prompt, type net stop DHCPserver , and then press ENTER. You receive a "The Microsoft DHCP Server service is stopping. The Microsoft DHCP Server service was stopped successfully" message.


d. Type exit, and then press ENTER.

4. Delete the DHCP.mdb file under c:\windows\system32\DHCP folder.
5. Start the DHCP server service.
6. Right-click on the Command Prompt (cmd) and select run as administrator, to open the cmd prompt using elevated privileges.

Note You must have local administrator permissions to import the data.


7. Type the following Command: netsh
8. Type the following Command: DHCP
9. Type the following Command: server name or ip address
10. Type the following Command: import c:\w2k3DHCPdb
11. Restart DHCP and verify the database has moved over properly.


From: http://support.microsoft.com/kb/962355

Thursday 14 October 2010

Creating PTR records with BT static IP addresses

If you need to create a PTR record for a BT static IP address you need to send an email to:

reverse.dns@btbroadbandoffice.com

Stating your broadband phone number, static IP address and which host you want it pointing to.

Tuesday 12 October 2010

UK ISPs IP address ranges

Vodafone UK
212.183.128.0 - 212.183.159.255



O2 mobile
82.132.128.0 - 82.132.143.255
82.132.192.0 - 82.132.255.255




Blackberry
93.186.16.0 - 93.186.23.255


T-Mobile
149.254.0.0 - 149.254.255.25

Opal Telecom

89.241.0.0 - 89.243.255.25
2.96.0.0 - 2.103.255.255



TalkTalk
92.0.0.0 - 92.15.255.255



BT Public Internet Services
31.52.0.0 - 31.53.255.255

62.7.176.0 - 62.7.183.255
81.128.0.0 - 81.159.0.0
86.128.0.0 - 86.191.255.255
109.144.0.0 - 109.159.255.255
213.120.0.0 - 213.123.255.255
217.32.0.0 - 217.47.255.255

BeThere

93.96.0.0 - 93.96.255.255
78.105.0.0 - 78.105.127.255

Demon

83.104.0.0 - 83.107.255.255
80.176.0.0 - 80.177.255.255

Telewest Broadband

82.32.0.0 - 82.47.255.255

Virgin Media

80.0.0.0 - 80.7.255.255
80.235.128.0 - 80.235.159.255
81.104.0.0 - 81.107.255.255
82.24.0.0 - 82.31.255.255
82.42.144.0 - 82.42.151.255
86.0.0.0 - 86.31.255.255

Tiscali

81.6.192.0 - 81.6.255.255
82.132.128.0 - 82.132.143.255
82.132.192.0 - 82.132.255.255

Sky Broadband

90.192.0.0 - 90.223.255.255

EasyNet

87.80.0.0 - 87.87.255.255


PlusNet
87.112.64.0 - 87.115.127.255
46.208.0.0 - 46.208.65.255

Murphex
109.170.128.0 - 109.170.255.255