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Tech Tips, Tricks & Trivia

by 'Anil' Radhakrishna
An architect's notes, experiments, discoveries and annotated bookmarks.

Search from over a hundred HOW TO articles, Tips and Tricks


This Week I Learned - Week #254

This Week I Learned -

* Reserve a static IP address if you need a fixed IP address that won't change — for example, if you need to create an A record in DNS, or need the IP address to be added to a safe list.

* Use a tool such as iostat to monitor disk I/O performance for your workload.

* You can scale a VM up or down by changing the VM size. Managed Disk can only be resized to a size greater than the existing disk size.

* If you delete a VM, the VHDs are not deleted. To delete the VHD & avoid being charged for storage, delete the file from Blob storage.

Cloudcraft can be used to create advanced AWS visualizations and diagrams, in both commercial and non-commercial projects.

Unigma Public Cloud Cost Comparison Calculator can be used to compare prices in AWS, Azure and Google clouds

Azure DocKit is a SAAS solution that automatically generates technical documentation of your Azure environment, including complete Visio diagrams, dependencies, track changes, best practices warnings, billing info (CSPs and EAs included) and more.It works in both environment, classical and ARM.

* If you are using unmanaged disks, create separate Azure storage accounts for each VM to hold the virtual hard disks (VHDs), in order to avoid hitting the (IOPS) limits for storage accounts.

* To prevent accidental deletion, use a resource lock to lock the entire resource group or lock individual resources, such as a VM.

* A Progressive Web App uses modern web capabilities to deliver an app-like user experience. Safari still does not support it.

QRCode Scanner is a progressive web application that can scan barcodes

* RBAC does not limit the actions that a user logged into a VM can perform. Those permissions are determined by the account type on the guest OS.

* Reservation charges for Reserved Virtual Machine Instance does not cover additional software, networking, or storage charges. Reservations do not auto-renew.

docs.microsoft.com is built on top of the open GitHub platform. Content feedback mechanism for docs.microsoft.com is moving from Livefyre to a custom built commenting system based on GitHub Issues. This will let the Microsoft team triage the issue, assign a label, and assign an owner to make the fix (or ask follow up questions) thereby enabling richer way with writers and product teams. Jeremy Danyow (author of utteranc.es) is on the Docs dev team and built our GitHub issues implementation

* Starting from July 2018, with Google’s release of Chrome 68, which will mark all HTTP sites as “not secure.”

* You can now estimate the network bandwidth requirements and target Azure requirements, for cloud migration and disaster recovery.

* Lots of Americans have chest pain because of a lack of blood and oxygen reaching the heart. This is known as angina. For decades, one of the most common ways to treat this was to insert a mesh tube known as a stent into arteries supplying the heart. The stents held the vessels open and increased blood flow to the heart, theoretically fixing the problem..Studies  show that..stents delivered no benefit over medical therapy for preventing heart attacks or death for patients with stable coronary artery disease - NY Times

Tourette syndrome (TS) is a neurological disorder characterized by repetitive, stereotyped, involuntary movements and vocalizations called tics. Evidence from twin and family studies suggests that Tourette syndrome is an inherited disorder.

* 118 different formulations of fixed dose combination (FDC) antibiotics being sold in India between 2007 and 2012, 64% were not approved by the Central Drugs Standard Control Organisation (CDSCO) - even though sale or supply of  unapproved new medicines in India is illegal. FDC antibiotics, which were sold under more than 3,300 brand names, were made by almost 500 pharmaceutical manufacturers - of which 12 were multinationals.

* "Without data you're just another person with an opinion" - W. Edwards Deming

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