Category Archives: Networking

Radius Setup on the Cisco 1200 AP

Radius Setup on the Cisco 1200 AP Yes I know the CISCO 1200 AP is old.  I had to re-configure it to talk to our Windows 2012 NPS servers. So here is the short walk through. Log into the AP Click on the Security Tab Then select the Server Manager In the Corporate Servers Server… Read More »

IBM DS3500 SAN Mapping and Host setup

IBM DS3500 SAN Staging Mapping and Host Setup This will finish my series on the IBM DS3500 setup.  I hope you have enjoyed the entries and have found them useful. Add another vSphere Open up the Subsystem Management Go to the Mapping Tab Right Click on Storage Subsystem XXXXXX_DS3512 Define->Host Define Host Name Define Port… Read More »

Traffic Shaping and NIOC

Traffic shaping and Network I/O Control (NIOC) My current project is to move our network infrastructure within out virtual environment to the 10GB network. I will be removing twelve 1GB network cables per host.  Each host will have two 16GB Fiber Channel cards and two 10GB ethernet cards. I will have a total of four, not twelve… Read More »

Software iSCSI setup on ESXi

How to set up the Software iSCSI initiator in ESXi Go to the Inventory  Hosts and Clusters  Configuration  Storage Adapters screen Click the iSCSI Software Adapter, if it’s not present simply click the Add button on the top right of the screen to add the iSCSI Software Adapter. As you can see here that no paths have been configured, click… Read More »

VMware vDS setup

VMware vDS (VMware Distributed switches) Setup In this post I want to show you the reasons for using vDS if you have an Enterprise Plus license. First is why… The vDS only has to be configured once on the vCenter system.  With standard switches you have to configure the ports and NICs on every ESXI/vSphere… Read More »

Exchange 2010 Fixing Internal Hostname SSL Errors

How to fix the Exchange 2010 Internal Hostname certificate Error I am going to bet you have seen an error similar to this. Let’s assume your Exchange server is known as “cpexchange2010.domain.local” internally but the external name is “mail.domain.com”. Solution You need to add the (“domain.com”) to your internal IP and setup a record to point… Read More »

VMware restart Agents services

VMware restart Agents services I have had to do this a couple of times in the last couple of week on ESXi 5.1.  ESXi 5.5 seems to keep these services in line a little better. Here is just a quick walk though.   Log into the vsphere through SSH   Service mgmt-vmware restart Wait for… Read More »

Brocade VDX 6740 firmware

Brocade VDX 6740 A couple of weeks ago I start the process of upgrading our current virtual environment to 10GB ethernet.  These switches will not be used for a converged infrastructure. We currently have a 8GB Fiber Channel storage backbone.  Next year we are upgrading the hardware controllers cards in the hosts to 16GB. The… Read More »

Disable SMB NULL on Windows 2012

Disable SMB NULL on Windows 2012 Last Monday we got our PCI penetration test back from our PCI auditor. They have exploited a vulnerability for SMB NULL share on a domain controller. On Windows 2008 Server is was easy.  You made a couple registry changes and everything was good. Here are the  Windows 2008 registry… Read More »

Detect SMB NULL on Windows 2012

Detect SMB NULL on Windows 2012 Here is how to detect if you have SMB NULL enabled on your servers. In a command prompt type: net use \IP_AddressIPC$ “” /u:”” Replace the IP_Address with the IP of a server or desktop. You will see this. Notice that I run net use again. If you see… Read More »