Docker is an opensource tool used for virtualization and deliver software in the form of packages called Containers. It is one of the most important tools used in networking domain. Dockerfile is a template for building the image which contains commands needed to package the software. In this post, I am going to explain the commands ADD & COPY used in Dockerfile . ADD Command: ADD command is used to copy files, directories or files from remote URLS to destination path in the image. The source paths can contain wildcards. If the destination has relative path, it is relative to the Working directory of the image. Note that source path is always relative to the Docker build context. ADD command will not support authentication. So, if there are any protected files to be added in Dockerfile building, use other tools like curl or wget Dockerfile copying Single & Multiple files, directory using ADD inst...
Here i n this post, I am going to explain the basic Linux networking command Ifconfig Ifconfig Command Use: One can know or configure the interfaces in the system using Ifconfig . Let us know what information about an interface is displayed using ifconfig command The sample interfaces information is shown above: The Link encap indicates that the packets are encapsulated and connected to Ethernet. The HWaddr shows the address of physical adapter associated with interface. First three octets of HWaddr determines the manufacturer of the adapter. The second line may contain inet addr or inet6 addr based on the type of interface and has corresponding IP address. There will be some flags shown when ifconfig is used. Some of them are explained below: UP: Interface is in the active state RUNNI...