Cloudruha's Linux Administration Certification training is designed to shape you as a Linux professional & help you to run applications, perform desired functions on your system and networks, create a network configuration, and maintain security administration.

Installation and Initialization

Topics – Introduction, Installation, Linux Architecture, Boot Process, Kernel, System Initialization, GRUB(Modify the system boot loader), GUI, CLI(Access a shell prompt and issue commands with correct syntax, Use input-output redirection (>, >>, |, 2>, etc.), create and edit text files, delete, copy, and move files and directories, Introduction to Bash Shell, Basic Commands, Editors, Man Pages, Boot systems into different targets manually & automatically, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Package management and Process monitoring

Topics - Securing single-user mode (su login), Shutting down and rebooting the system, RPM Package Manager, Installing and Removing Software, rpm Queries, rpm Verification, About yum, Using yum, Searching packages/files, Configuring local Repositories, What processes are?, The properties of a process, Parent processes and child processes, Killing processes and sending signals to a process (kill, killall, xkill), How to start processes, monitor them, Identify CPU/memory intensive processes, adjust process priority, start/stop/check the status of network services, Configure networking and hostname resolution statically or dynamically, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Important Files, Directories and Utilities

Topics - Control services and Daemons, Start and stop services and configure services to start automatically at boot, /dev & /proc directories, system documentation under /usr/share/doc, Awk, Sed, use grep and regular expressions to analyze text, Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2, dump, restore, Locate and interpret log files, Annie’s Quizzes, LAB, Q & A, Quick Recap.

System Services

Topics - Network Time Protocol, X Windows, SSH: Secure Shell(Access remote systems using ssh, SCP, Passwordless SSH, Configure key-based authentication for SSH), Cron, Controlling Access to cron, System crontab Files, Daily Cron Jobs, Anacron Scheduler, Schedule tasks using at, Annie’s Quizzes, LAB, Q & A, Quick Recap.

User Administration

Topics - Adding a New User Account, User Private Groups, Modifying / Deleting User Accounts, Group Administration, Password Aging Policies, Switching Accounts, sudo access, Network Users, Authentication Configuration, SUID and SGID Executable, SGID Directories, The Sticky Bit, Default File Permissions, , Changing file ownership (chown), Changing file group ownership (chgrp), Permissions on files, Permissions on directories, How permissions are applied, Changing permissions (chmod),Access Control Lists (ACLs), Annie’s Quizzes, LAB, Q & A, Quick Recap.

File System Security and Management

Topics - Device Recognition, Disk Partitioning, Managing Partitions, Making Filesystems(vfat, ext4, and xfs,), Mount and unmount CIFS and NFS network file systems, Filesystems and types, Labels, tune2fs, Mount Points and /etc/fstab, Mounting Filesystems with mount, Unmounting Filesystems, Handling Swap Files and Partitions, NFS server and NFS Client, NFS share for group collaboration, Mounting NFS Filesystems, Use Kerberos to control access to NFS network shares, Automounter, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Advanced file system management

Topics - Special file types, Symbolic links (ln -s), Inodes and directory entries, Hard links, Preserving links while copying and archiving, Configuring the Quota System, Setting Quotas for Users, Reporting Quota Status, What is Logical Volume Manager (LVM)?, Creating Logical Volumes, Resizing Logical Volumes, Network Interfaces, IPv4 Addresses, Dynamic IPv4 Configuration, Static IPv4 Configuration, Device Aliases, Routing Table, Default Gateway, Verify IP Connectivity, Defining the Local Host Name, Local Resolver, Remote Resolvers, Verify DNS Connectivity, Network Tools, NFS server and NFS Client, NFS share for group collaboration, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Server configurations

Topics - Configure BIND to function as a caching-only DNS server, Configure a caching-only name server to forward DNS queries, Troubleshoot DNS client issues, Configuring BIND options, Configuring directory location for zone files, Apache Overview, Apache Server Configuration, Virtual Hosts, Apache Access Configuration, Deploy a basic CGI application, Configure TLS security, Configure private directories, Analyze and store logs, Annie’s Quizzes LAB, Q & A and Quick Recap.

Shell scripting & Kerberos Authentication

Topics – Shell Scripting basics, loops, shell variables, arrays, writing scripts, Kerberos authentication Annie’s Quizzes, LAB, Q & A, Quick Recap.

Samba & Mail services, Virtualization

Topics - Configure SMB to provide network share to clients, Configure mail server to forward all emails to Central mail server, Introduction to KVM Virtualization, Virtual Machine installation, Configuring Virtual Machines, Install centos systems as virtual guests, Configure systems to launch virtual machines at boot, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Advanced security & Networking concepts

Topics - SELinux Overview, SELinux Tools, SELinux Contexts, SELinux Booleans, Use SELinux port labeling to allow services to use non-standard ports, Diagnose and address selinux policy violations, Configure firewall settings, N/W port security, Route IP traffic and create static routes, Boot level security (GRUB), Security need for TCP wrappers, Configure aggregated links between two systems, Use firewalld and associated mechanisms such as rich rules, zones and custom rules, to implement packet filtering and configure network address translation (NAT), Use /proc/sys and sysctl to modify and set kernel runtime parameters, Linux Containers, Annie’s Quizzes, LAB, Q & A, Quick Recap.

Database configuration

Topics - Install MariaDB, Schema Creation and Writing Queries, backup & restore operations, Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target, Annie’s Quizzes, LAB, Q & A and Quick Recap.