Adding RBLs to your Paloalto Networks Firewall

A quick way to add Dynamic External Lists to your Paloalto firewall via cli is as follows. login to your firewall via SSH. type configure and paste the below set external-list tor-threats type ip url http://panwdbl.appspot.com/lists/ettor.txt recurring hourly set external-list spamhaus-drop type ip url http://panwdbl.appspot.com/lists/shdrop.txt recurring hourly set external-list spamhaus-edrop type ip url http://panwdbl.appspot.com/lists/shedrop.txt recurring… Read More »

Installing USB Serial on OSX Sierra

Download the Driver Browser to the Prolific site to download the driver and install it. Here’s the URL at the time of this writing: http://www.prolific.com.tw/us/showproduct.aspx?p_id=229&pcid=41 Discover Driver Numbers The driver will need them so that it can be associated with your USB device. Click on Apple -> About This Mac and and click System Report. Select USB and scroll until… Read More »

Unable to create Datastore on ESXi 6.0 using Intel S3610 SSD

Has anyone been successful in adding an Intel s3610 SSD as a datastore on VSphere 6.0? I have tried several times without success. The process starts and shows in the recent tasks as “Create VMFS datastore”, but keeps running and never completes. I have successfully added other non-SSD drives without any issues. I tried reinstalling a clean copy… Read More »

VSphere 6 Nvidia GRID driver install

INSTALLING THE NVIDIA VIRTUAL GPU MANAGER FOR VSPHERE The NVIDIA Virtual GPU Manager runs on ESXi host. It is provided as a VIB file, which must be copied to the ESXi host and then installed. Package installation To install the vGPU Manager VIB you need to access the ESXi host via the ESXi Shell or… Read More »

Xenserver 6.5 – 6.2 Nvidia GRID Howto

NVIDIA GRID vGPU NVIDIA GRID vGPU enables multiple Virtual Machines (VM) to have simultaneous, direct access to a single physical GPU, using the same NVIDIA graphics drivers that are deployed on non-virtualized Operating Systems. Under the control of NVIDIA’s GRID Virtual GPU Manger, which runs in the XenServer Control Domain (dom0), GRID physical GPUs are… Read More »

Xendesktop Nvidia Grid desktop acceleration

Nvidia’s GRID vGPU technology is natively supported in XenDesktop, so let me show you how this feature works and some tips that go along with it. Citrix XenDesktop’s support for GPU virtualization allows virtual desktop users to run graphics-heavy applications with fantastic performance, gone are the days when your vdi is limited to mediocre graphics. Citrix added the capability for… Read More »

How STP selects the root bridge

In an STP enabled LAN, a switch is designated as the root bridge. The root bridge serves as an admin point for all spanning-tree calculations to determine which redundant links are blocked. An election process takes place, determining which switch becomes the root bridge. Each switch has a Bridge ID (BID) that is made up of: priority value extended system… Read More »