I'm trying to establish a connection with a device on my network and have 2 Modbus Protocol related questions: Is the protocol used by this controller "Modbus RTU over TCP" or "Modbus TCP"? Here is the device manufacturer's description describing…
I have multiple deployments running of RDP application and they all are exposed with ClusterIP service. I have nginx-ingress controller in my k8s cluster and to allow tcp I have added --tcp-services-configmap flag in nginx-ingress controller deployment and also created…
Let's say: apiVersion: v1 kind: ConfigMap metadata: name: tcp-services namespace: ingress-nginx-private data: 3389: “demo/rdp:3389”` will expose a “rdp” service. If we have 10 services which need to be exposed the same way than how can we achieve that?
I followed Kubecon Seattle 2018 Gitops Tutorial everything was working fine till 4th step, but in 5th step podinfo pod is not visible. watch kubectl get pods NAME READY STATUS RESTARTS AGE flux-cb9449876-mr477 1/1 Running 0 130m memcached-57b897cc4-qdm9s 1/1 Running…
I wonder if others noticed this issue with the WSL2 Debian implementation of TCP. I am connecting from a Docker container running WSL2 Debian v. 20 The TCP client sends a Keep-Alive packet every second which is kind of overkill.…
I am testing my server app in the docker container, I saw it stopped with code 137. root@debian:~# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 821959f20624 webserver-in-c_server "./webserver -p 8080" 2 weeks ago Exited (137) 40…
I am trying to debug remote PHP scripts using xdebug. When xdebug is enabled for a website, if xdebug is able to make a tcp connection, the PHP script freezes as though waiting for a breakpoint to be executed. The…
I'm researching imap and smtp and found interesting things ... Messages are received and sent using an endpoint / socket TCP / IP over SSL or TLS, interestingly php is able to create a socket and receive and send data…
When using TCP to connect to a web server, how is the port selected? Does the web browser select which port it will use? A web server usually listens on port 80. Apache web server is a popular web server,…
Motivations I am a running into an issue when trying to proxy PostgreSQL with Traefik over SSL using Let's Encrypt. I did some research but it is not well documented and I would like to confirm my observations and leave…