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To determine which processes are using specific network ports on a Windows system, you can use built-in command-line tools. This guide demonstrates how to identify port usage and associate it with running applications. Using Command Prompt Launch Command Prompt by perssing Win+R, typing "cmd", and pressing Enter. Display Network Conne ...

Cisco Catalyst & Integrated Services Router Checks Core System & Inventory Overview transport preferred ssh terminal no length display running-config! Displays full active device configuration show inventory! Displays system diagnostic details show module status show env temp show env fan show env power show processes cpu sorted 1min sh ...

Private IP Address Ranges RFC 1918 defines three IP address blocks reserved for private networks: Class A: 10.0.0.0 – 10.255.255.255 Class B: 172.16.0.0 – 172.31.255.255 Class C: 192.168.0.0 – 192.168.255.255 These addresses are not routable on the public internet and can be used internally without ISP registration. Docker Networking Issues A ...

Basic Concepts Load balancing solutions encompass various approaches including DNS-based domain rotation, client-side load distribution, application-layer load balancing, and IP address-based scheduling. This document focuses on LVS, a layer-4 load balancer built upon transport protocols like TCP/UDP. LVS stands for Linux Virtual Server, repres ...

The java.net.URL class can parse a URL string and expose its components. To obtain the portocol and host, create a URL instanec and call getProtocol() and getHost(). import java.net.URL; public class UrlParser { public static void main(String[] args) throws Exception { URL endpoint = new URL("https://docs.oracle.com/en/java/&q ...

Setting Up a PPPoE Server on Ubuntu Environment Tested on: Ubuntu 14.04 32-bit Ubuntu 16.04 64-bit Ubuntu 20.04 64-bit Package Installation sudo apt-get update sudo apt-get install pppoe-server sudo apt-get install pppoe Configuration Files /etc/ppp/options sudo vim /etc/ppp/options Configuration content: ms-dns 8.8.8.8 ms-dns 8.8.4.4 async ...

TCP and UDP Protocols TCP (Transmission Control Protocol) is a connection-oriented transport layer protocol that ensures reliable communication. It guarantees data integrity, preventing loss, disorder, duplication, or corruption during transmission. Typical use cases for TCP include: User authentication and session management in applications l ...

In Docker, network communication between a container and the host system is managed through port mapping. This allows external traffic to reach specific services running inside a containerized environment.\n\n### Port Mapping Fundamentals\nThe primary way to map ports is during the execution of a container using the -p (or --publish) flag. This ...

DNS Resolution PhaseWhen a client attempts to reach a domain like app.example.com, it first queries a DNS server. The resolution yields different results based on the service exposure strategy:External IP (e.g., 198.51.100.10): Returned when the application is exposed externally via a LoadBalancer or an Ingress resource.Cluster-internal IP (e.g ...

WCF Channel Architecture OverviewIn Service-Oriented Architecture (SOA) implementations, message passing between clients and services is a critical component. The Windows Communication Foundation (WCF) abstraction treats the communicating endpoint as a remote entity, regardless of whether it resides in the same process or across a different net ...