It was eight years ago, almost to the day, when I wrote my first blog on building a secure web server using the LAMP stack with CentOS 5. I have since updated it in 2015 and again in 2017 for CentOS 7. But almost decade later and are we still hosting WordPress sites on LAMP web servers. Sure we can harden the web server but there are so many components to think about. Apache, MySQL / MariaDB, PHP, IPTABLES, SELINUX, SSH for admin access and file transfer, then the ultimate attack vector. WordPress itself. [Read more…] about Static Sites with Azure Blob Storage, CI/CD and Jekyll
For my first post of 2013, I have decided to dive straight into sizing for VMware View 5.1. If you are planning a VMware View implementation then at some stage you will need to look at sizing, and calculating factors like how many desktops per View desktop pool, in addition to network configuration and storage considerations. The purpose of this article is to discuss sizing and configuration maximums for VMware View 5.1. Since VMware ESX 3.x, a configuration maximums document has been published by VMware for each version of vSphere that details the supported maximums for networking, compute, storage, vCenter, host, and even vCloud Director. Because there is no single ‘configuration maximums’ document for VMware View 5.1, I have included reference documents and material at the bottom of this article. [Read more…] about Sizing for VMware View 5.1 Composer Desktop Pools
This is the second part to my VCAP-DCA study guide on storage (section 1.1 of the blueprint). As mentioned in part 1, I intend to focus these study notes on what you need to know with essential learning points. There is a big section on LUN masking using PSA related commands in this part of my study guide, and also an introduction to analysing performance stats with esxtop. Whilst esxtop is covered in many of the VCAP-DCA blueprint sections, 1.1 is the first section it is mentioned in regards to assessing storage performance, so at the very end of this post I have included the topic ‘Using ESXTOP for Storage Performance Analysis’.
This is the very first subject on the VCAP-DCA blueprint, and I intend to focus these study notes on what you need to know with essential learning points. Throughout my study notes I have made a few assumptions about the reader. You will:
- Already have a good grasp of vSphere and are comfortable using the vSphere client.
- Have a good understanding of storage types, RAID levels, iSCSI, fiber channel, NFS.
- Have some basic Linux knowledge, such as using Vi or Nano, and navigating around the file system.
- Not be very familiar with using the vMA, PowerCLI, Service Console, or DCUI (at least not for anything advanced).
- Need further guidance on using ESXTOP / RESXTOP and other performance and troubleshooting methods.
With that in mind I recommend that rather that following the exam blueprint in order, you try and focus on the topics you find the hardest. If I’ve not included notes on some topics (RAID for example) it is because there is already a wealth of information available. This way, your VCAP-DCA study can be focused on key learning points that target gaps in your knowledge or areas of weakness. Also bear in mind that at the time of writing this I haven’t taken the VCAP-DCA yet, but as a former virtual infrastructure team lead and admin, in addition to recent knowledge in the field I hope my notes help not only myself, but others to pass the certification too.
[Read more…] about 1.1 VCAP-DCA Study Guide – Implement and Manage Storage, part 1
“DataCore Announces New Generation of Storage Virtualization Software that Solves the “Big Problem” Stalling Today’s Server and Desktop Virtualization Projects”.
[Read more…] about Datacore announces SANsymphony-V