Linux Administration & Security Full Course | Sysadmin & Hardening

YouTube Excerpt: Linux System Administration and Security in this complete 6-hour course. This comprehensive training covers the core skills required to manage, secure, and troubleshoot Linux servers in a professional environment. We start with the boot process and package management, then move into advanced security topics like hardening Apache, intrusion detection with Snort, SELinux policies, and configuring iptables firewalls. What you will master in this course: -System Boot: Understanding GRUB, Runlevels, and physical protections. -Service Hardening: Securing Apache, Postfix, MySQL, and Tomcat. -Security Tools: Using Tripwire, Snort, RootKitHunter, and Wireshark. -User Management: Password cracking defenses, PAM, and SELinux. -Network Security: Deep dive into iptables, Firewalld, and NAT. Perfect for aspiring Sysadmins, DevOps Engineers, and Cybersecurity professionals. TIMESTAMPS & CHAPTERS: 00:00:00 Introduction *Module 1: Introduction* 00:01:24 What you will learn in this Module 00:04:11 What Is Linux 00:08:02 Distributions 00:12:04 Scratch Versus Binary 00:16:03 Ubuntu Package Management 00:19:22 RedHat Package Management *Module 2: Booting* 00:24:03 What you will learn in this Module 00:27:47 Physical Protections 00:31:15 The Boot Manager (GRUB) 00:37:11 Protecting The Boot Manager 00:41:13 xinetd 00:45:27 Runlevels 00:50:00 Setting Default Runlevels 00:54:38 GRUB2 00:57:51 LILO *Module 3: Services* 01:02:41 What you will learn in this Module 01:05:34 Service Management With RHEL7 01:09:10 TCP Wrappers 01:11:44 Listening Ports 01:17:25 Standard Postfix Configuration 01:23:31 Apache Configuration 01:30:34 Hardening Apache 01:37:46 Virtual Hosts In Apache 01:41:41 DNSSec 01:47:57 MySQL 01:53:10 PostgreSQL 01:57:10 Tomcat 02:02:45 JBoss 02:05:35 mod_security 02:12:39 SSL-TLS And Apache 02:19:11 SPF And Greylisting In Postfix *Module 4: Logging and Log Management* 02:23:23 What you will learn in this Module 02:29:20 Remote Logging 02:33:11 Reading Log Files 02:38:58 Logwatch 02:45:26 Log Aggregation 02:50:08 utmp And wtmp *Module 5: Intrusion Detection and Prevention* 02:53:50 What you will learn in this Module 02:57:33 Tripwire 03:04:41 Samhaim 03:07:54 Prelude 03:11:31 AIDE 03:15:10 Snort 03:22:16 Alerting With Snort 03:27:31 Snort Console 03:31:25 Reading Snort Traces With Wireshark 03:33:51 RootKitHunter *Module 6: Users and Permissions* 03:37:26 What you will learn in this Module 03:44:31 Creating Users 03:47:52 Securing Passwords 03:51:20 Cracking Passwords 03:54:39 Alternate User Management 03:57:49 AppArmor 04:00:54 Unix Permissions 04:04:54 SELinux 04:07:45 Modifying SELinux Permissions 04:11:10 Restoring SELinux Permissions 04:13:48 PAM *Module 7: Utilities* 04:17:03 What you will learn in this Module 04:21:01 Process Management – top And ps 04:26:18 Process Management – kill 04:30:26 nmap 04:35:57 OpenVAS 04:41:16 Nexpose 04:47:09 Find 04:50:59 tcpdump 04:55:18 Wireshark 05:00:49 lspci And lsusb *Module 8: Kernel* 05:03:32 What you will learn in this Module 05:08:03 Kernel Modules 05:12:18 Managing Kernel Parameters 05:16:12 Kernel Builds 05:21:23 Kernel Config 05:24:12 Viewing Kernel Config From Running Kernel *Module 9: Firewalls* 05:27:46 What you will learn in this Module 05:29:08 NAT With iptables 05:33:44 iptables Tables 05:35:58 Matching On Protocol 05:40:07 Rate limiting 05:42:59 New Versus Established Versus Related 05:46:50 Targets 05:49:10 iptables Logs 05:51:57 iptables With Multiple Interfaces 05:54:54 Firewalld 05:57:50 Zones And Services 06:00:25 Matching On Owner 06:03:31 ufw 06:06:24 gufw 06:08:36 Course Summary & Conclusion -Subscribe + Hit the Bell for weekly TECH tutorials that fast-track your IT career and help you land high-paying tech jobs! -Drop a comment below about your current networking knowledge level - We read every single one! *Show your Love & Support:* https://www.patreon.com/alphabrains ☕️ *Buy us a coffee!* (https://www.buymeacoffee.com/alphabrains) Would Help me make more content like this one :) ``` If you are involved in ANY form of online collaboration, then have I got the all-in-one solution for you! Try it here *(it's completely free)* - https://www.taskade.com/?via=taskade 🌟*Join Our Brainers Community!* Are you passionate about learning, tech, and courses? Join us at Discord to dive into a vibrant community where enthusiasts like you come together to share knowledge, resources, and inspiration. 💎https://linktr.ee/Alphabrains💎 🚀Telegram: https://t.me/+pIXV6rmfKbU5YmRk ✨WhatsApp Channel: https://whatsapp.Com/channel/0029V51YH9p05MUXZRubWa35 🔥Discord Channel: https://discord.gg/fbsKcU7mp5 💎YouTube Channel: https://www.youtube.com/@alphabrainscourses/

Linux System Administration and Security in this complete 6-hour course. This comprehensive training covers the core skills required to manage,...

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