Programming VIP

In the previous article Using MetalLB as LoadBalancer in Kubernetes cluster (Part 1) In, we use MetalLB's Layer2 pattern as the implementation of LoadBalancer to expose the services in Kubernetes cluster outside the cluster. Remember the IP address pool we assigned to MetalLB in Configmap? apiVersion: v1 kind: ConfigMap metadata: namespac ...

At the beginning of last year, there were a lot of code written in openwrt, although I felt sorry that there was a lot of code written in openwrt in the early days of the company. Let's briefly introduce the socket multi process server on openwrt. Look at the code This is c language code. The code written at that time was not very good. Don' ...

In our practical work, we will develop our own functional modules For Openwrt, its convenience is that it can be installed and uninstalled at any time like ko file For Openwrt, there are also a set of new steps of "standard": 1. Add module directory under package directory: hello 2. Add the corresponding file, like this Files: ...

ip_filter Function introduction Register the hook function to the netfilter framework through the kernel module, analyze the ip header information, extract the source ip and destination ip, and filter after matching to the specified ip address. network layer The network layer introduces the IP protocol and formulates a set of new addres ...