Explore virtualized networking environments through the Cloud, Edge, and 5G core networks, and their applications. This book covers the primary approaches related to setting up and experimenting with related cloud and networking environments using virtual networks, and virtual network functions. Yoüll start by experimenting with future networking environments and learn a variety of Docker basics and essential networking skills. Specifically, containers, networking, volumes, iptables (for Docker environment security) and default orchestration features are discussed to help set up custom cloud, edge, and 5G core networking environments. Hands-on activities related to Docker networking and services features for publishing, scaling, and monitoring of services are also provided. By the end of Part 1, yoüll be able to set up a variety of custom networking environments easily using Docker compose features and secure the set-up using iptables. Part 2 introduces Network Function Virtualization (NFV) architecture, and its roles in Cloud and 5G core networks. Yoüll learn to deploy an open source 5G core platform from OpenAirInterface (OAI) using Docker. Then, yoüll set up and evaluate Virtual Network Functions (VNF) over suitable virtual networks. Hands-on activities are featured to guide you through the process of setting up and deploying VNFs such as DHCP, DNS, and proxy servers. Finally, Part 3 discusses key virtual networks such as IP VLANs, MAC VLANs, and overlay networks using Docker cluster setups. Yoüll use interesting hands-on activities to easily experiment and learn cloud and 5G core network set-up related virtual networks, overlay networks, and network slicing. When done, yoüll be able to set up a variety of VNFs, carefully deploying VNFs, and conducting slicing activities over Docker cluster setups. What Yoüll Learn Explore Cloud, Edge, and 5G core networking using Docker networking features. Build and evaluate a variety of virtual networks and deploy Virtual Network Functions (VNFs) and Network Slices using Docker swarm setups. Set up and deploy an open source 5G core network using Docker for experimenting. Enhance cloud environment and applications security using linux security features such as Capabilities, Seccomp, and AppArmors. Develop and evaluate network security experiments using Scapy and Docker networks. Who This Book Is For Network engineers, cloud engineers, students, faculty, and cloud and networking researchers.