Mayank Agarwal

ANSIBLE Ansible  automates and simplifies repetitive, complex, and tedious operations . Everybody likes it because it brings  huge time savings  when we install packages or configure large numbers of servers. Its architecture is simple and effective. It works by connecting to your nodes and pushing small programs to them. These programs make the system comply with a desired state, and, when they have finished their tasks, they are deleted. To know more about ansible, check my this blog :    ANSIBLE : How Industries are solving Challenges using Ansible HAPROXY HAProxy is an open source, free, very fast and reliable solution offering high availability, load balancing and proxying for TCP and HTTP-based applications.  It is particularly suited for web sites crawling under very high loads while needing persistence or Layer7 processing. It distributes a workload across a set of servers to maximize performance and optimize resource usage. HAProxy can be used for ...

  In this blog I'm going to create a  network Topology Setup in such a way that System A can  ping to two Systems System B and System C but both these systems should not be pinging each other without using any security rule e.g firewall etc . Every body thinks that in a network topology, if System A can ping to B and System B can ping to C, then it's obvious that system C can ping system A. But NO, Not Always... So in this blog, I'm going to show you how to create such topology. And believe me, doing this is so simple. It's just a game of netmask and routing table. NOW Practical :- System A : 1. Change the ip and netmask of system A to 192.168.1.20/16 2. Then add network  range  in the  routing table .       Here I've selected the range such that it can ping to both of my other system. 3. By using  route -n  command, you can check the  routing table  of System. 4. Using  ifconfig enp0s3  command, you can che...