Seq — centralized structured logs for .NET, Java, Node.js

Application logs are the most useful data available for detecting and solving a wide range of production issues and outages. Seq makes it easier to pinpoint the events and patterns in application behavior that show your system is working correctly — or why it isn’t.

Seq is built for modern structured logging with message templates. Rather than waste time and effort trying to extract data from plain-text logs with fragile log parsing, the properties associated with each log event are captured and sent to Seq in a clean JSON format. Message templates are supported natively by ASP.NET CoreSerilogNLog, and many other libraries, so your application can use the best available diagnostic logging for your platform.

Seq accepts logs via HTTPGELFcustom inputs, and the seqcli command-line client, with plug-ins or integrations available for .NET Core, Java, Node.js, Python, Ruby, Go, Docker, message queues, and many other technologies.

Free for development and single-user deployment
The free single-user license included with Seq lets developers run Seq locally, and now supports individual developers in production.

Source: Seq — centralized structured logs for .NET, Java, Node.js

Setup Virtual Machine for testing browser Microsoft Edge version 18

I needed to test a locally developed website in old legacy browser Microsoft Edge version 18. My system is Windows 10 using Oracle VM VirtualBox software.

Here is how to setup the Virtual Machine for accessing an Angular website on the “localhost” hostname. The website also makes requests to a localhost Java based REST API. E.g. upon entering http://localhost:4200 in the VM it should work the same as in the host OS.

Download Edge Virtual Machine

VirtualBox software: Oracle VM VirtualBox software
Edge Image:
Use the “Virtualbox” VM image.
Direct link:
The VM password is: Passw0rd!

Make Angular development server available as “localhost” in the VM

Setup network:
In Oracle VM VirtualBox -> Settings -> network -> Attached to: “NAT”

Advanced -> port forwarding:
Name:”Angular server”, Protocol: TCP, Host port: 4200, Guest port: 4200
(dont set host and guest IP)

The above makes the Angular web development server (ng serve) available on http://localhost:4200 in the VM.

Make a Java Spring backend API available as “localhost” in the VM

(In the VM environment)
Add to the c:\windows\system32\drivers\etc\hosts file:

The above config tells the VM OS to expose all requests of to the “outer” hosting machine.

(In the VM environment)
Start an elevated cmd and enter this:

The above command will forward all requests for localhost:8081 to (which the hosts file made available for the “outer” host OS).