networking

A practical guide to understanding and using iptables in Linux. In this blog post, we explore what a firewall is and how iptables can be used to set up, maintain, and inspect the tables of IP packet filter rules within the Linux kernel, and setup iptables-persistent to persist ephemeral firewall rules. It also provides a step-by-step guide on how to block incoming http connections to a webserver and then unblock it using iptables commands.

This article lists 3 of the best Linux network tools used for network troubleshooting , including netstat for analyze network connections, ip for viewing and manipulating network objects and dig for query and analyze DNS with example code snippets.

In this article we will dive in to CAP Theorem in Distributed Systems, following proof of CAP theorem and how it is defines some of the databases in current market.