Enterprise Linux network management and advanced options

Enterprise Linux network management and advanced capabilities in a Red Hat Enterprise Linux 9 / AlmaLinux OS environment - plus 3 months access to the full course e-learning material - only with us!

This hands-on, workshop-style course introduces participants to the installation, implementation and management of networking and advanced services for a modern enterprise Linux-based infrastructure. After completing the course, participants will be able to operate network infrastructure and services (IP settings, DHCP, DNS, network file systems, network printers, firewalls, privilege management, SElinux) on a daily basis. The training, together with the basic course (LNX-01), will also provide the necessary practice to pass the official RHCSA (Red Hat Certified System Administrator) practice exam (exam fee not included in the training).

The course is based on Red Hat Enterprise Linux version 9, but most of the knowledge can be successfully applied to other Linux distributions, as the training focuses on practical exercises and does not include specific (distribution-specific) techniques.

An overview of basic networking skills:

• Building blocks of a computer network, basic concepts.
• Overview of IPv4 network features, TCP basics
• Overview of IPv6 network features, TCP basics

Basic network configuration:

• Setting up, configuring and testing network devices. (ifconfig, route, ip, )
• Using initialization files to configure the network (ifcfg-xxxx)
• Use Nmcli, Nmtui.
• Managing advanced network parameters (ethtool, sysctl)

Configuring network routing:

• Concept and configuration of static routing (host, net).
• Connecting different networks using a router.
• Router configuration
• Detecting and solving typical routing errors

Typical router routing problems:

• Chronyd - installing chronyc
• Review configuration files
• Command line options

Implement name resolution:

• Name resolution concepts
• Client-side name resolution setup, related configuration files.
• How the Domain Name System (DNS) works.
• DNS server setup.
• How to create and modify domain name service, creating and modifying related files.
• Master-slave relationship concept and design.
• Overview and use of programs to control DNS operation (rndc)
• Detecting and correcting name resolution problems.

Automatic IP addressing and configuration on client side:

• Dynamic Host Configuration (DHCP) process.
• DHCP server installation.
• IP assignment based on dynamic or MAC addresses.
• Configuration files configuration options.
• DHCP server administration.

Tuned :

• Description.
• Detecting and making an optimal setting.

Using network file systems:

• NFS service overview, installation, setting NFS permissions.
• AutoFs
• Setting up a Windows file server using Samba file server.
• Share network resources, manage and test privileges.

Managing firewall services:

• Overview of basic concepts
• Firewall overview
• Linux firewall configuration in different network environments (home, internal, public, external, work, trusted).
• Publishing services on the firewall, address translation.
• Testing firewall operation, logging.

SSH :

• Description of the service.
• Review configuration files
• SSH key generation and its use in communication between servers.
• Port forwarding

Advanced RHEL installation:

• Creating a Kickstarter configuration file
• Installation using a response file
• Reviewing possible errors

Advanced privilege management:

• Advanced privilege management using ACL.
• SELinux overview, basics.
• Activating SELinux.
• SELinux settings.
• Detecting and troubleshooting common errors.

Advanced network management:

• Merging network interfaces (teamd).
• Implementing a network bridge.

Web services:

• Httpd deployment configuration
• Create virtual hosts.
• Creating a password protected website with .htaccess
• Configure SSL virtualhost
• redirect to

Virtualization basic concepts:

• KVM
• libvirtd
• virsh
• virt-manager (gui)

Related Exam.

Basic computer and information technology skills, basic networking skills. Completion of the Enterprise Linux Fundamentals of Operations (LNX-01) course or knowledge of the course. Some source material may be in English, so a working knowledge of English at document reading level is recommended.