Linux Engineer Course

Introduction of Linux, Basic Networking Concepts, About Proprietary and Open Source Software, Duties of system administrator and Linux engineer. VI and VIM editor, Installation of VirtualBox Vmware and Oracle Virtual Machine, Installation of Linux Minimal and Graphic User Interface (GUI).

Linux Directory Structure, Define Structure of Directory and There Uses, About Root User and Normal User, Remote Connectivity using Putty, Kitty, Mobaxterm, VNC, RDP. CLI and The Shell, create and edit text File and Directory.

What is Boot Process? Linux Boot Process Involves Several Stages, BIOS/UEFI Initialization, Followed by Grub Boot Loader, Kernal Loading and INIT System(Systemd), Systemctl Domain, INIT targets, Service Management, Booting in Rescue Mode, Single User Mode, Recover Root Password, Setup Grub Password.

Introduction of Mounting Linux Filesystems and Mount Points ( ext2, ext3, ext4, xfs …), Disk Partitioning, Formatting the Harddisk, Mounting Filesystem ,Persistent vs Mount Points /etc/fstab, Journaling Attributes, Auto and Manual Mounting File System, File and Disk Management Tools, Mount Binding, The lost+found Directory.

Linux User Essential, user management, user roles default parameters, Ownership, working with groups, setting user environment, login configuration files, password essential, related security, /etc/nologin, superuser equivalent

Networking service overview, concept of IP, Subnet mask, Gateway and DNS , IP configuration, Multiple IP, range of IP, MAC address, network configuration file locations and format, routing table, Linux as a router, Network manager, Networking tools, Link status and other related commands.

System vs Application Users, Linux User Essential, User Management /etc/passwd, /etc/shadow, Group Management /etc/group, /etc/gshadow, Creating, Modifying, and Deleting Users (useradd, passwd,usermod, chage, userdel), User Roles Default Parameters, Ownership (chown), Working with Groups, Setting User Environment, Login Configuration Files, Password Essential, Related Security, /etc/skel, /etc/nologin, Superuser Equivalent.

Linux Permissions/Ownership: User(u), Group(g), Others(o), Viewing Permissions, Traditional and Octal method(chmod), Setting default Permission ( UMASK), Special Permission ( SUID,SGID,Sticky bit),Sudoers, File and Folder Attributes, ACLs (FACL and GETFACL),Soft and Hard Links, Inode Concepts.

Why Scheduling is Important in an Oracle Environment, Types of Scheduling Tools in Linux, Manual vs. Automated Job Execution, One Time Automation (AT), Repetitive Automation (cron), Anacron, Various examples, Maintenance Scheduling Backup, Restore and Monitoring Jobs, Scheduling Security, Scripting in Cron at Reboot, Once in week/month, Overview of Cron and the Cron Daemon (crond).

Basic Commands, Advance Commands, Linux Monitoring Commands, Linux Important Commands, rpm/Yum/dnf Server, Monitoring Running Process(PID), Terminate Running Processes with Kill, Systemd, Package Managers, Monitoring Running System with Top Command.

NFS Server:Explain NFS Server, Installation of NFS, Advantages of NFS for Oracle databases, Using NFS to Access Remote File System, Configuring NFS Server, Configuring NFS Clients, Exporting File System to NFS Server to NFS Clients, Centralized Storage for Multiple Oracle Servers.

What is LVM? Installation of LVM, Benefits of using LVM Physical Volume (PV), Volume Group(VG), Logical Volume(LV), (pvcreate,pvdisplay,pvchange, pvck), Volume group management (vgcreate, vgchange, vgextend, vgdisplay, vgck, vgscan), Logical volume management (lvcreate, lvchange, lvresize, lvdisplay).

What is Telnet and FTP? Installing and Configuring Telnet and FTP Server in Linux? Concept of Encrypted Communication, Xinetd Service and Child Processes, Telnet Server, Configuring Vsftpd Server, Security Option, Anonymous Uploads, Client and Web Based access of FTP Server, User Restrictions, Log Monitoring and Control Panel.

Explain Proxy Server, Concept of proxy Server, Installing and Configuring a Proxy Server, Types of Proxy, Proxy Server Benefits, Content Filtering, Access Control List ( ACLs), IP, MAC, Username/Password Based Access, Filtering Web Traffic, Enhancing Security, Building Control Panel to Maintain the Server, Forward Proxy, Reverse Proxy, Transparent Proxy Server, Security Tips and Troubleshooting.

What is DHCP Server ? Installation of DHCP Server, How DORA works? Concept of DHCP Server, DNS Settings to Client Machines in a Network, Configure DHCP Server for Dynamic IP, Fixed IP, MAC Registration Scenario based Discussion, Build a Control Panel, DHCP Server vs DHCP Client.

Explaining DNS server, Understanding of DNS Server Fundamentals, Understanding DNS Parameter (A, AAA, SOA, NS, CNAME, PTR, TXT, MX etc), Configure for FORWADERS, Cache DNS, Configure Internal DNS Server, RDNS, Dynamic DNS, Master Slave Server Replications, Security Options, DNS Utilities. Understanding Global DNS Name Resolution Techniques, Domain Registration/Hosting, Root Servers RDNS, SPF, DKIM, DMARC Concepts, Testing Tools, Build a Control Panel to Manage DNS Stuff.

Concept of Web Server, HTTP and HTTPS, Configure Apache Server, Port Redirection, .htaccess Concepts, Multiple Website Hosting (virtual domains / vhosts), SSL Certificate Deployment, Implement Apache Web Login Authentication with password, Building Apache with mod_ssl, Web Hosting Techniques, Apache Modules, Awstats. Connectivity with Database ( MySQL or Mariadb)

About MySQL or MariaDB Database Server, Features and Benefits of MySQL Server, Architecture and Components of MySQL Server, MySQL commands and queries, Backup and Restore, PhpMyAdmin Panel. MySQL Replication master-master and understanding master-slave, Replication, Setting up a Master Server, Configuring Slave Servers.

NetBIOS concepts, Samba as a Backup Server (samba 3.x), file restrictions, Testing Tools, Integration with Windows System, Auto Mounting, Samba as an Active Directory (Samba 4.x), Replacement of Windows AD, Group policies, Login Scripts, Roaming Profile, Joining Windows PCs, RSAT Admin Panel, Central Domain and Directory Management, Users, Security Groups, Distribution Lists, Contacts, Multiple Organization Units (OUs), Group Policy Objects (GPOs),Single Sign-On (SSO) authentication, Supported OS: Windows 7/8/10,File sharing in Windows® environments (CIFS),Users and Groups Access and Modification Permissions (ACLs)

Mail Server Basics, About JUNK or SPAM Mails, Concepts of DNS(MX) Mail Exchanger, Understanding Email Routing, Mailing Components like MTA, MDA, MUA, SMPT-AUTH,OPEN-REALY, SMART-HOST, TRANSPORT, FORWARDING, MASQUERADING etc. Introdution of Zimbra/Carbonio, Architecture Overview: MTA, LDAP, Mailserver, Webmail Interface, Installation, Mail Domain & Account Management, SMTP, POP, IMAP Configuration, Back and Restore, Monitoring and Performance. Understanding Mailing features: Disclaimer, Auto responder, Mail Quota, Types of Email Accounts, Global Address Book, Distribution List etc. Understanding Email Header: Email, Tracing, Message ID, TO, CC, BCC, X Parameters, Spam Score Etc. Understanding Mailbox: MDIR, MBOX Mail Relaying through Remote Host, SMTP AUTH, Transport Map, Mail Archiving with Individual Users, Virtual Table, Account Aliases / Mail Forwarding / Integration with Antivirus / Anti Spam / LDAP as Global Address Book / SSL / TLS, Certificates, Domain Masquerading, Briefcase feature, Auto responder, Mail Filter, Backlist & whitelist Address, RDNS, SPF, DKIM, DMARC, RBL, SBL Database Integration o Control SPAM

Why Linux security matters, IPTables, TCP Wrapper, Firewalld, 101 Tips and Tricks for Server Hardening, Security principles, Open Source Firewall, SELinux, SSH Security, Firewall & Network Security, Security Update & Updates.

What is WHM and CONTROL PANEL (CPANEL), Difference between WHM and CONTROL PANEL (CPANEL), Role of WHM in serer and account management, Interface of WHM, Accounting Management, Package and Featur Lists, Security Functions, Navigating CPANEL Dashboard, Domain Management, Performance Optimzation, Advance tools (Cron Jobs, Git Version Control, Terminal Access).

What is Log Server, Types of Logs, Log Format, Log Formats, Log Management, Log Services, Log File Locations, ELK Stack (Elasticsearch, Logstash, Kibana), Graylog, Log Forwarding, Security and Compliance, Log Monitoring Dashboard, Searching and Filtering Logs, Log Retention and Archiving.

Introduction of Shell Scripting, Advantages of Shell Scripting, Advance Variable Handling, Advance Conditionals, Loops and Control Structures, Script Portability, Performance Optimization, Secure Scripting Practices, Automating System Tasks, Funtions.

Introduction of PfSense, Installation and Setup of PfSense, Network Configurations, Firewall Rules, NAT, PfSense Packages, VPN Configuraions, User Management, Dynamic DNS (DDNS), Logging & Monitoring, Captive Portal.

Basics of Samba and Active Directory, Installation & Configuration, Active Directory Domain Management, DNS and Networking, Authentication & Security, Client Integration, Advanced Administration [Promoting additional DCs (replication setup), Domain functional levels], Monitoring & Troubleshooting [Samba logs (/var/log/samba/, journalctl, log.level)].

Intoduction of SSO (Single Sign-On), Authentication vs Authorization, System Authentication Basics, User authentication in Linux (PAM and NSS) , Kerberos and LDAP, How Kerberos works (TGT, TGS, keytabs, etc.), LDAP basics and integration , Integrating Linux into SSO (AD/Samba/LDAP), SSO in Web Applications, Security & Best Practices, Tools & Utilities.