LITMIR.BIZ

      ● Bonding– Set up bonding to aggregate network links. Bonding is described in Chapter 14.

      ● Route IP traffic– Set up static routes to specific network addresses. Chapter 14 includes a description of how to set up custom routes.

      ● Firewalls– Block or allow traffic to selected ports on your system that offer services such as web, FTP, and NFS, as well as block or allow access to services based on the originator's IP address. Firewalls are covered in Chapter 25.

      ● Kernel tunables– Set kernel tunable parameters using the /etc/sysctl.conf file and the sysctl command. See Chapter 14 for a description of how to use the /etc/sysctl.conf file to change IP forwarding settings in /proc/sys.

      ● Kerberos authentication– Use Kerberos to authenticate users on a RHEL system. Chapter 11 includes a description of setting up a system to authentication to a Kerberos server.

      ● Configure iSCSI– Set up system as an iSCSI target and initiator that mounts an iSCSI target at boot time. See the Red Hat Storage Administration Guide for further information (https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Storage_Administration_Guide/ch-iscsi.html)

      ● System reports– Use features such as sar to report on system use of memory, disk access, network traffic, and processor utilization. Chapter 13 describes how to use the sar command.

      ● Shell scripting– Create a simple shell script to take input and produce output in various ways. Shell scripting is described in Chapter 7.

      ● Remote logging– Configure the rsyslogd facility to gather log messages and distribute them to a remote logging server. Also, configure a remote logging server facility to gather log messages from logging clients. Chapter 13 covers remote logging with rsyslogd.

      ● SELinux– With Security Enhanced Linux in Enforcing mode, make sure that all server configurations described in the next section are properly secured with SELinux. SELinux is described in Chapter 24.

      ● Web server– Configure an Apache (HTTP/HTTPS) server. You must be able to set up a virtual host, deploy a CGI script, use private directories, and allow a particular Linux group to manage the content. Chapter 17 describes how to configure a Web server.

      ● DNS server– Set up a DNS server (bind package) to act as a caching-only name server that can forward DNS queries to another DNS server. No need to configure master or slave zones. DNS is described from the client side in Chapter 14. For information on configuring a DNS server with Bind, see the RHEL Networking Guide (https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html-single/Networking_Guide).

      ● NFS server– Configure an NFS server to share specific directories to specific client systems so they can be used for group collaboration. Chapter 20 covers NFS.

      ● Windows file sharing server– Set up Linux (Samba) to provide SMB shares to specific hosts and users. Configure the shares for group collaboration. See Chapter 19 to learn about configuring Samba.

      ● Mail server– Configure postfix or sendmail to accept incoming mail from outside the local host. Relay mail to a smart host. Mail server configuration is not covered in this book (and should not be done lightly). See the RHEL System Administrator's Guide for information on configuring mail servers (https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html-single/System_Administrators_Guide/index.html#ch-Mail_Servers).

      ● Secure Shell server– Set up the SSH service (sshd) to allow remote login to your local system as well as key-based authentication. Otherwise, configure the sshd.conf file as needed. Chapter 13 describes how to configure the sshd service.

      ● Network Time server– Configure a Network Time Protocol server (ntpd) to synchronize time with other NTP peers. See Chapter 26 for information on configuring the ntpd service.

      ● Database server– Configure the MariaDB database and manage it in various ways. Learn how to configure MariaDB from the MariaDB.org site (https://mariadb.com/kb/en/mariadb/documentation/).