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...
What is EPC? EPC stands for Evolved Packet Core. It is a framework to provide both voice and data on a 4G LTE (Long Term Evolution) network. 2G and 3G networks process voice using circuit switched domain and data using the packet-switched domain. But the EPC network unifies both data as well as voice on Internet Protocol (IP) Server architecture and treat it as an IP application. Key Components of EPC: The following components play a vital role in the EPC network: Mobile Management Entity: It takes care of session management, authentication of user and tracking of the user across the network Serving Gateway (S-Gateway): It is responsible for the routing of data packets across access networks Packet Data Node Gateway (PGW): It is an interface between the LTE network and other packet data networks. It also helps in maintaining Quality of Service (QoS) and deep inspection of the packe...