Linux System Administration: A Practical way of learning
Learn how to secure and harden a Linux system, protect your BIOS, manage server firewalls, and set up an Apache web server. Explore advanced storage features and container technology. Improve your Linux system’s security with practical lab sessions.
IntroductionSecuring & Hardening a Linux SystemLinux Physical SecurityHow to break root passwordSecuring the grub menuReset root password from rescue modeBIOS ProtectionGeneral SecurityKeep your system updatedTurn off IPv6Disable USB Stick to detectRestrict Users to Use Old PasswordsCheck Password Expiration of a UserPassword Expiration – Lab SessionVerify accounts for empty passwordVerify accounts with “Zero” UIDReview logs regularlyKeep /boot as read onlyManaging Server FirewallsFirewall conceptsAbout nftables, features and advantages of firewalldFirewalld components, pre-defined zonesHow packet flows through firewallCheck firewalld services – Lab SessionAdding and Removing Services & Port from Firewall Server – Lab SessionAdd Services Permanently in Firewalld – Lab SessionAdd HTTP Service in firewalld – Lab SessionPort forwarding – Lab SessionConceptual discussion about Masquerading, Packet Flow in FirewalldMasquerading with Port Forwarding – Lab SessionAbout Rich Rules in FirewalldSpecifically allow a Server using Rich Rules – Lab SessionAllow Telnet Port, SSH with log prefix using Rich Rule – Lab SessionAccept, Reject, Drop – Lab SessionAdvanced Storage FeaturesAbout StratisLab – Installing & Configuring StratisLab – Managing Stratis File SystemsLab – Persistently Mounting Stratis File SystemsLab – Stratis filesystem snapshotGuided Exercise – Create a thin-provisioned file systemGuided Exercise – Verify file system grows dynamicallyGuided Exercise – Create & access data from SnapshotVDO – Virtual Data OptimizerLab – Installation VDOLab – Create & format a VDO VolumeLab – Testing Deduplication:Recap – LabLab – Extend & Remove VDO VolumeLinux ContainersIntroducing Container TechnologyPlanning for containersLab – Configure a basic containerLab – mapping container host ports to the containerLab – stop, restart & remove containerSetting up a Apache Web ServerIntroduction Apache Web ServerBasic Setup of Apache Web ServerApache main configuration file – 1Apache main configuration file – 2Launching a simple web pageOrder (Allow, Deny)IndexesPractice Lab Session on Indexes.
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