VMware is having a wonderful promotion to help ease the painful cost of continuing one’s certification portfolio.
Existing VCPs may take any of the following exams (and any retakes) before January 1, 2015 for 25% off!
VMware Certified Professional 5 – Data Center Virtualization
Exam Code: VCP550
Exam Code: VCP510
VMware Certified Professional 5 – Desktop
Exam code: VCP510-DT
Exam code: VCPD510
VMware Certified Professional – Cloud
Exam Code: VCPC550
Exam Code: VCPC510
Exam Code: VCPVCD510
VMware Certified Professional – Network Virtualization
Exam Code: VCPN610
In order to schedule the exam, remember to request authorization in advance of using the PearsonVUE website. The discount code (VCPRECERT25) is applied after payment information is entered during the scheduling process.
“The best nightmares are encores of the worst of one’s life.”
I can’t recall the first time I penned this but believe it was back in high school while writing a paper analyzing my life to a soundtrack comprised of various genres.
What purpose this mechanism serves is best described by others but I will say – perhaps too obviously – that a critical circuit is short-circuited demanding attention and that one’s treatment of that error condition is what defines his life in regard to the event and associated conditions.
Avoidance reinforces the impingement as do techniques that seek to revisit and hence remember the pain. The greater context and long term goals and journey become so significant and may be the only way to simply and easily turn that meteoric crash into a minor bug splat on a windshield. Without the broader perspective and the allowance (cf guilt) to look beyond, smile as that heavenly body nears and pulses your doom.
After installing Microsoft Windows 8 KB2821895 you may notice a few quirks. The first is that you might see the update is listed as having been applied – in multiple places. This seems innocuous but can be confusing.
The second issue is that running SFC directly or via other tools like the wonderful D7 from FoolishIT will report corrupt files in Windows that _cannot_be fixed. Thankfully there is a work around to this corruption reporting issue. From an elevated command prompt as depicted in the graphic, run the following Deployment Image Servicing and Management (DISM) command:
dism /online /cleanup-image /restorehealth
Once this dism process completes, you can rescan for Windows file integrity: sfc /scannow
Every now and then I get the opportunity to use in my home manufacturer gear such as Palo Alto Network’s PA-500, a next-generation firewall. Even without any policy refinement, the PA demonstrated a consistent performance advantage of about 5-6 Mbps over my straight Asus RT-N66U freshly imaged with firmware 188.8.131.52.354 that I had installed just prior.
Is this surprising? Well, no. Not only does Palo Alto Networks make pretty fantastic systems but this test is like racing a recent BMW Roadster against a new Prius. What’s exciting if I were to have the opportunity to use a PAN firewall is that my speed would be largely deterministic and consistent regardless of what features I turned on. As of this post, I’ve turned on just about every feature such as live Data Filtering, URL Filtering, Spyware and Virus Filtering, and File Blocking.
Much more to come on the blog site www.blackdiamondsolutions.com so stay tuned.
Every IT guy eventually learns how to flush the local cache for a system’s DNS client. The following command has probably wore many a helpdesk or admin keyboard:
There are certainly times where that is the best or only course of action in diagnostics or recovery. For instance, a replacement service may be running with a different IP address such as when a VM or service is moved from one Data Center to the other.
Sometimes the better course is to observe (passively) before any action is taken. Windows PowerShell offers a simple commandlet, Get-DnsClientCache that can be very helpful showing each entry of a host and other useful information such as record type, TTL and the IP addresses. Combine the basic command with some simple processing for more power (below):
PS C:\Users\User> Get-DnsClientCache | where entry -Contains youtu.be
Entry RecordName Record Status Section TimeTo Data Data
Type Live Length
----- ---------- ------ ------ ------- ------ ------ ----
youtu.be youtu.be A Success Answer 58 4 184.108.40.206
youtu.be youtu.be A Success Answer 58 4 220.127.116.11
youtu.be youtu.be A Success Answer 58 4 18.104.22.168
youtu.be youtu.be A Success Answer 58 4 22.214.171.124
youtu.be youtu.be A Success Answer 58 4 126.96.36.199
youtu.be youtu.be A Success Answer 58 4 188.8.131.52
youtu.be youtu.be A Success Answer 58 4 184.108.40.206
youtu.be youtu.be A Success Answer 58 4 220.127.116.11
youtu.be youtu.be A Success Answer 58 4 18.104.22.168
youtu.be youtu.be A Success Answer 58 4 22.214.171.124
youtu.be youtu.be A Success Answer 58 4 126.96.36.199
Go ahead and try it out on your Windows system the next time you feel the urge to flush.