Category: Network

Two Examples of using AWS Network Firewall


AWS Network Firewall is a high-available and scalable firewall service that provides network protections for VPC, which is a supplement to the existing security services. Security group protects computing resources (EC2, Lambda, RDS...)NACL (Network Access Control List) protects subnetsWAF (Web Application Firewall) and Shield protects frontend resources (ELB, CloudFound, API Gateway) There are quite a … Continue reading Two Examples of using AWS Network Firewall →

Access Specific EC2 behind ALB


When there are multiple EC2 instances running behind the application load balancer, there is no way (at least as the time of writing) to tell the load balancer which instance you want to use. It is all controlled by the pre-defined load_balancing.algorithm.type. load_balancing.algorithm.type - The load balancing algorithm determines how the load balancer selects targets when routing … Continue reading Access Specific EC2 behind ALB →

kubectl unable to connect minikube on VPN


I installed minikube in my Mac, and I noticed that kubectl is unable to connect to it while my Mac in on VPN (Cisco Anyconnect). $ kubectl cluster-infoKubernetes master is running at https://192.168.99.100:8443To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.Unable to connect to the server: dial tcp 192.168.99.100:8443: i/o timeout Here are … Continue reading kubectl unable to connect minikube on VPN →

Atlassian Marketplace server is not reachable


If you are seeing the error message 'The Atlassian Marketplace server is not reachable. Available application updates will not appear on this page." on the Jira Version & License page - https://jira.mycompany.com/plugins/servlet/applications/versions-licenses. Then you should check the following three places: Network Make sure your Jira box has a workable network. Run some ping or curl testings to … Continue reading Atlassian Marketplace server is not reachable →