What this book covers
Chapter 1, Introducing Enterprise Linux 7, helps you understand how enterprise-level Linux differs from other bleeding-edge distributions and the relationship between Red Hat, CentOS, and Fedora. This short chapter gives you a great understanding of RHEL and helps you learn RHEL 7 on your choice of platform.
Chapter 2, Configuring Network Settings, discusses how to configure your network settings and how Red Hat allows you to set the IP address configuration on your host.
Chapter 3, Configuring Key Network Services, helps your RHEL host with a network address. This chapter teaches you how to add some command networking services and how to configure NTP, DNS, DHCP, and SMTP, time, name resolution, IP address assignment, and e-mails.
Chapter 4, Implementing iSCSI SANs, discovers RHEL 7. It offers a new kernel-based module to implement network-based storage. This chapter teaches you how to deploy iSCSI targets and connect from an RHEL client.
Chapter 5, Implementing btrfs, takes a look at Better FS. Having volume management built-in the filesystem allows easy storage management and is a common basis for sharing your filesystem on a network.
Chapter 6, File Sharing with NFS, explains NFS, a de facto Unix file sharing service, which still maintains its importance in the Enterprise Linux market. This chapter covers how to use NFSv4 and compares it with V3 so that you can appreciate its easier firewall management feature among many other new features.
Chapter 7, Implementing Windows Shares with Samba 4, covers instances where RHEL can provide services on a network and the client-side workstation will have Windows OS installed at their end. This requires RHEL to support these Windows clients. File and print services can be supplied through the Samba 4 service on RHEL 7.
Chapter 8, Integrating RHEL 7 into Microsoft Active Directory Domains, explores the fact that many enterprise organizations have already set up Identity Services and are run with Microsoft's Active Directory. It makes sense that these existing domain accounts should be used to access resources on the RHEL 7 server. The RHEL server can join the domain server and become a member server that allows you to share single sign-on to shared resources hosted on the Linux system.
Chapter 9, Deploying the Apache HTTPD Server, deploys a web server that can be important for your network. This may be to provision web access to an intranet or external access to the Internet. Many administrators use the Apache web server to provide access to local software repositories and install sources, so the importance of this service cannot be overlooked.
Chapter 10, Securing the System with SELinux, provides insights on the fact that with more and more systems connecting to the Internet, the vulnerability of your network facing services is increasing exponentially. SELinux has been included on RHEL since release 4, but very often, we read blogs that suggest that SELinux should be disabled. This chapter teaches you how to deploy systems with SELinux effectively.
Chapter 11, Network Security with firewalld, provides insights on how to effectively use firewalls on your RHEL 7 system with the latest command-line tool, the firewalld service, and the firewall-cmd command. Throughout the book, we have presented practical uses of the latest firewall and how to open the required ports and services. The book concludes with details of this service and how to effectively secure your server with firewalld.
