Skip to main content

Seq - ERR_SSL_PROTOCOL_ERROR

Structured logging is the future and tools like ElasticSearch and Seq can help you manage and search through this structured log data.

While testing Seq, a colleague told me that he couldn’t access Seq. Instead his browser returned the following error:

ERR_SSL_PROTOCOL_ERROR

The problem was that he tried to access the Seq server using HTTPS although this was not activated. By default Seq runs as a windows service and listens only on HTTP.

To enable HTTPS some extra work needs to be done:

  • First make sure you have a valid SSL certificate installed in either the Local Machine or Personal certificate store of your Seq server.
  • Open the certificate manager on the server, browse to the certificate and read out the thumbprint value.
  • Now open a command prompt on the server and execute the following commands:
    • seq bind-ssl --thumbprint="THUMBPRINT HERE --port=9001
    • seq config -k api.listenUris -v https://YOURSERVER:9001
    • seq restart

Remark: The ‘--port’ parameter is only necessary when you are not listening on the standard HTTPS port(443).

More information: https://docs.datalust.co/docs/ssl

Popular posts from this blog

.NET 8–Keyed/Named Services

A feature that a lot of IoC container libraries support but that was missing in the default DI container provided by Microsoft is the support for Keyed or Named Services. This feature allows you to register the same type multiple times using different names, allowing you to resolve a specific instance based on the circumstances. Although there is some controversy if supporting this feature is a good idea or not, it certainly can be handy. To support this feature a new interface IKeyedServiceProvider got introduced in .NET 8 providing 2 new methods on our ServiceProvider instance: object? GetKeyedService(Type serviceType, object? serviceKey); object GetRequiredKeyedService(Type serviceType, object? serviceKey); To use it, we need to register our service using one of the new extension methods: Resolving the service can be done either through the FromKeyedServices attribute: or by injecting the IKeyedServiceProvider interface and calling the GetRequiredKeyedServic...

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.

Kubernetes–Limit your environmental impact

Reducing the carbon footprint and CO2 emission of our (cloud) workloads, is a responsibility of all of us. If you are running a Kubernetes cluster, have a look at Kube-Green . kube-green is a simple Kubernetes operator that automatically shuts down (some of) your pods when you don't need them. A single pod produces about 11 Kg CO2eq per year( here the calculation). Reason enough to give it a try! Installing kube-green in your cluster The easiest way to install the operator in your cluster is through kubectl. We first need to install a cert-manager: kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.14.5/cert-manager.yaml Remark: Wait a minute before you continue as it can take some time before the cert-manager is up & running inside your cluster. Now we can install the kube-green operator: kubectl apply -f https://github.com/kube-green/kube-green/releases/latest/download/kube-green.yaml Now in the namespace where we want t...