lff lConnect to AWS VPC via VPN and Mikrotik CHRWe have a requirement to connect to some EC2 servers inside an AWS VPC from office. Due to some limits we cannot use AWS site2site VPN; so…4 min read·Oct 6, 2023----
lff lIstio-Ingressgateway, Health check failedOn a newly AWS EKS cluster, istio 1.18 is installed. However the LB health check failed (0 node healthy) for istio-ingressgateway service.1 min read·Sep 15, 2023----
lff lValidate ES256/384 JWT tokens by JDKI need to validate a JWT token, created as ES256 or ES384 alg. By checking the well-known libraries(from…1 min read·Sep 7, 2023----
lff lKafka, retention is not work ?Got warnings from Kakfa Cluster on Prod (Storage > 80%).3 min read·May 16, 2023----
lff lGraalVM and GuiceI am building the native code for a project which uses Google Guice as DI engine.3 min read·Mar 8, 2023----
lff lClone my apartment entrance cardThe management office of my apartment gives me 5 cards, looks like4 min read·Dec 27, 2022----
lff lInstall Kube2iam on Amazon EKSTo access resources in AWS, a POD running in EKS can use either ways to grant the permission:3 min read·Jun 27, 2022----
lff lSpring Cloud Gateway with logsWhen using the Spring Cloud Gateway, I want to show the request/response details in logs. This thread helped a lot:1 min read·Mar 10, 2022----
lff lValidate Azure B2C id_tokenFor a web app, Azure b2c login is used and in a 3rd party backend service we want to validate it is a valid request.2 min read·Feb 9, 2022----
lff lSend requests to .net Core http2 serverMy workmate developed a .net core 3.1 RESTFUL service with the following configurations:1 min read·Nov 22, 2021----