How traceroute works

How traceroute works using ICMP error messages.


In this article, we will talk about how traceroute works using ICMP. ICMP stands for Internet Control Message Protocol. This is used in the network layer just above the IP because ICMP messages are also encapsulated in IP packets. Now let’s have a look at how traceroute works using ICMP. When you type traceroute destination

Docker Networking

How docker networking works.


In recent articles, we talked about containers a lot like the below articles. In this article also we are going to continue the same trend and talk about how docker networking works. To understand very basic docker networking we need some knowledge beforehand. Lets read about namespaces in linux, veth pair and bridge. Namespaces: Namespaces

snat

What are SNAT and DNAT


If you are working as a DevOps you must have heard the name NAT. In this article, we will talk about them and SNAT and DNAT. NAT (Network Address translator) is generally used when you want to hide one side of the network and show it as a single IP. NAT keep a connection table