Knowledgebase
I - Basic Networking
Lesson 01 - Introduction
Lesson 02 - Why we need computer networks?
Lesson 03 - Network Topologies - Bus Topology
Lesson 04 - Network Topologies - Star Topology
Lesson 05 - Network Topologies - Mesh, Ring and Hybrid Topologies
Lesson 06 - Network Infrastructure Devices- What is a hub?
Lesson 07 - Network Infrastructure Devices - What are Bridges and Switchs?
Lesson 08 - Network Infrastructure Devices - What is a Router?
Lesson 09 - Common Network Cable types
Lesson 10 - Straight-Through and Cross-Over cables
Lesson 11 - Difference between Baseband and Broadband
Lesson 12 - Network Access Methods - CSMA/CD, CSMA/CA and Token Passing
Lesson 13 - LAN Technologies - Ethernet
Lesson 14 - Ethernet Media Standards
Lesson 15 - Lan Technologies - Token Ring
Lesson 16 - Lan Technologies - Fibre Distributed Data Interface (FDDI)
Lesson 17 - IEEE 802 Standards
II - TCP/IP
Lesson 01. TCP/IP Introduction.
Lesson 02 - Seven Layers of OSI Model.
Lesson 03 - Comparison between TCP/IP and OSI.
Lesson 04. TCP/IP Encapsulation and Decapsulation.
Lesson 05. TCP/IP Network Access Layer.
Lesson 06. TCP/IP Internet Layer
Lesson 07. IP Addresses
Lesson 08 - Class C Subnetting Tutorial - Part 1
Lesson 09 - Class C Subnetting Tutorial - Part 2
Lesson 10 - Class B Subnetting Tutorial - Part 1
Lesson 11 - Class B Subnetting Tutorial - Part 2
Lesson 12 - Class A Subnetting Tutorial - Part 1
Lesson 13 - Class A Subnetting Tutorial - Part 2
Lesson 14 - Variable Length Subnet Masking (VLSM)
Lesson 15 - Supernetting
Lesson 16 - Address Resolution Protocol (ARP)
Lesson 17 - Internet Control Message Protocol (ICMP)
Lesson 18 - TCP/IP Transport Layer
Lesson 19 - Transmission Control Protocol (TCP)
Lesson 20. Transmission Control Protocol (TCP) Segment Header
Lesson 21 - TCP Three-way Handshake
Lesson 22 - Multiplexing and Demultiplexing using port numbers
Lesson 23 - Transmission Control Block (TCB)
Lesson 24 - TCP Sliding Window
Lesson 25 - TCP Connection Termination
Lesson 26 - User Datagram Protocol (UDP)
Lesson 27 - Differences between TCP and UDP
Lesson 28 - TCP/IP Application Layer
Lesson 29 - Hypertext Transfer Protocol - What is HTTP?
Lesson 30 - Hypertext Transfer Protocol (HTTP) - Request and Response
Lesson 31 - Simple Mail Transport Protocol (SMTP) - How SMTP Works?
Lesson 32 - Simple Mail Transport Protocol (SMTP) Client - Server Communication
Lesson 33 - SMTP Status Codes and Extended Simple Mail Transfer Protocol (ESMTP)
Lesson 34 - Dynamic Host Configuration Protocol (DHCP) - How DHCP works?
Lesson 35 - Dynamic Host Configuration Protocol (DHCP) - Message Format.
III - Cisco Certified Network Associate (CCNA)
Lesson 01 - Introduction to Cisco Certified Network Associate (CCNA) Certification
Lesson 02 - Different Types of Router Memory
Lesson 03 - Cisco Router Boot Sequence
Lesson 04 - How to communicate with a Router using Console, Auxiliary, Telnet, SSH, HTTP and HTTPS connections
Lesson 05 - Cisco's Three-tier Hierarchical Network Model
Lesson 06 - Benefits of Segmenting a network using a Router
Lesson 07 - What are Collision Domain and Broadcast Domain
Lesson 08 - Cisco IOS Command Line modes
Lesson 09 - How to configure passwords to secure Cisco Router
Lesson 10 - Basic Cisco Router Configuration Commands
Lesson 11 - Cisco Router Show Commands
Lesson 12 - Important Key Combinations of Cisco IOS Command Line Interface (CLI)
Lesson 13 - How to configure Router Serial Interfaces
Lesson 14 - Types of Routes - Static Routes and Dynamic Routes
Lesson 15 - What is the difference between Routing Protocols and Routed Protocols
Lesson 16 - What is Autonomous System and Autonomous System Number
Lesson 17 - What is Administrative Distance
Lesson 18 - How to configure Static Routes and Default Routes
Lesson 19 - What is Dynamic Routing and different types of Dynamic Routing
Lesson 20 - Introduction to Distance Vector Routing Protocols
Lesson 21 - How to configure Routing Information Protocol (RIP)
Lesson 22 - How to configure Interior Gateway Routing Protocol (IGRP)
Lesson 23 - What is Routing Metric Value
Lesson 24 - What is Routing Loop and how to avoid Routing Loop
Lesson 25 - Introduction to Link State Routing Protocols
Lesson 26 - How to configure Open Shortest Path First (OSPF)
Lesson 27 - Introduction to Hybrid Routing Protocols
Lesson 28 - How to configure Enhanced Interior Gateway Routing Protocol (EIGRP)
Lesson 29 - Access Control Lists - ACL
IV - Security
Part 01 - Basics of Information Security
Lesson 01 - Introduction to Information Security
Lesson 02 - Authentication
Lesson 03 - Kerberos Authentication
Lesson 04 - Challenge Handshake Authentication Protocol (CHAP) Authentication
Lesson 05 - Biometric Authentication
Lesson 06 - Token Authentication
Lesson 07 - Multi-Factor Authentication
Lesson 08 - Access Control
Lesson 09 - Discretionary Access Control (DAC)
Lesson 10 - Mandatory Access Control (MAC)
Lesson 11 - Role-based Access Control (RBAC)
Part 02 - Internet Protocol Security (IPSec)
Lesson 1 - Internet Protocol Security (IPSec) - What is IPSec?
Lesson 2 - Internet Protocol Security (IPSec) - Security Association (SA)
Lesson 3 - Internet Protocol Security (IPSec) - Security Parameter Index (SPI)
Lesson 4 - Internet Protocol Security (IPSec) - Transport Mode
Lesson 5 - Internet Protocol Security (IPSec) - Tunnel Mode
Lesson 6 - Internet Protocol Security (IPSec) - Authentication Header (AH)
Lesson 7 - Internet Protocol Security (IPSec) - Encapsulating Security Payload (ESP)
Lesson 08 - What are Windows 2003 IPSec features?
Lesson 09 - What are IPSec policies?
Lesson 10 - How to configure IPSec in a Windws 2003 network to secure Telnet traffic?
Lesson 11 - How to create an IPSec policy in a Windows 2003 server?
Lesson 12 - How to create an IPSec Rule in Windows 2003 server?
Lesson 13 - How to create an IPSec IP filter list in Windows 2003 server?
Lesson 14 - How to associate IPSec filter list to filter action?
Lesson 15 - How to assign IPSec policy in Windows 2003 server?
Lesson 16 - How to configure IPSec Integrity and Encryption algorithms in windows 2003?
Part 03 - Public Key Infrastructure
Lesson 01 - What is Symmetric Encryption?
Lesson 02 - Symmetric Encryption Algorithms
Lesson 03 - What is Asymmetric Encyption?
Lesson 04 - Asymmetric Encryption Algorithms
Lesson 05 - Public Key Cryptography
Lesson 06 - What is a Digital Certificate?
Lesson 07 - What is Public Key Infrastructure (PKI)?
Lesson 08 - What is a Certificate Authority (CA)?
Lesson 09 - Comparison between Internal and External Certificate Authorities (CAs)
Lesson 10. Certificate Authority (CA) Hierarchy
Lesson 11. Windows 2003 Certificate Authorities (CAs)
Lesson 12 - Windows 2003 Certificate Server Architecture
Lesson 13 - Stand-alone Root Certificate Authority (CA)
Lesson 14 - Installing Stand-alone Root Certificate Authority (CA)
Lesson 15 - Installing Enterprise Subordinate Certificate Authority
Lesson 16 - How to submit Certificate Request to a Root Certificate Authority (CA)
Lesson 17 - How to import Root CA Certificate inside Trusted Root Certification Authorities Store
Lesson 18 - How to install CA certificate issued from Root CA on Enterprise Subordinate CA
V - Windows 2003
Part 01 - Disk Management
Lesson 01 - Difference between Basic and Dynamic disks
Lesson 02 - How to create a Primary Partition
Lesson 03 - How to create an Extended Partiton
Lesson 04 - How to create a Logical Drive
Lesson 05 - How to convert basic disk to dynamic disk
Lesson 06 - Dynamic Volumes- Simple Volume
Lesson 07 - How to create a Simple Volume
Lesson 08 - Dynamic Volumes - Spanned Volume
Lesson 09 - How to create a Spanned Volume
Lesson 10 - Dynamic Volumes - Striped Volume
Lesson 11 - How to create a Striped Volume
Lesson 12 - Dynamic Volumes - Mirrored Volume
Lesson 13 - How to create a Mirrored Volume
Lesson 14 - Dynamic Volumes - Striping with parity (RAID-5) Volume
Lesson 15 - How to create a triping with parity (RAID-5) Volume
Lesson 16 - New Technology File System (NTFS)
Lesson 17 - New Technology File System (NTFS) Attributes
Part 02 - Managing Files and Folders
Lesson 01 - New Technology File System (NTFS)
Lesson 02 - New Technology File System (NTFS) Attributes
Lesson 03 - NTFS Permissions
Lesson 04 - Standard Permissions
Lesson 05 - Special Permissions
Lesson 06 - Relation between Standard Permissions and Special Permissions
Lesson 07 - Permission Changes While Moving or Copying an NTFS File
Lesson 08 - How to take the Ownership of a file
Lesson 09 - Introduction to Folder Sharing
Lesson 10 - How to share a folder using Windows Explorer
Lesson 11 - How to share a folder on a remote computer using Shared Folders snap-in
Lesson 12 - Share Permissions
Lesson 13 - Introduction to Offline Files and Folders
Lesson 14 - How to enable Offline Files
Lesson 15 - How to make files available Offline
Part 03 - Active Directory
Lesson 01 - What is Directory Service?
Lesson 02 - Introduction to Directory Standards
Lesson 03 - What is Active Directory (AD)?
Lesson 04 - What is Active Directory (AD) Forest?
Lesson 05 - What is Active Directory (AD) Tree?
Lesson 06 - What is Active Directory (AD) Domain?
Lesson 07 - What is a Domain Controller (DC)?
Lesson 08 - What is Organizational Unit (OU)?
Lesson 09 - Active Directory Trusts and Trust Types.
Lesson 10 - What is Active Directory Schema?
Lesson 11 - Windows 2003 Active Directory Installation - How to configure static IP address.
Lesson 12 - Windows 2003 Active Directory Installation - How to install DNS
Lesson 13 - Windows 2003 Active Directory Installation - Running Dcpromo
Lesson 14 - How add a computer to an Active Directory Domain?
Lesson 15 - Active Directory files and their functions
Lesson 16 - What is Active Directory Naming Context or Directory Partition?
Lesson 17 - What is Active Directory Replication?
Lesson 18 - Introduction to Active Directory Sites
Lesson 19 - How to create an Active Directory site
Lesson 20 - How to move Domain Controllers between Active Directory Sites
Lesson 21 - How to create and configure subnets for Active Directory Sites
Lesson 22 - What is Active Directory Site Link?
Lesson 23 - How to create Active Directory Site Link
Lesson 24 - How to configure Site Link attributes
Lesson 25 - What is bridgehead server , preferred bridgehead server and Knowledge Consistency Checker (KCC)
Lesson 26 - What is Site Link Bridge and How to create Site Link Bridge
Lesson 27 - What is Active Directory Global Catalog?
Lesson 28 - How to configure a Domain Controller as Global Catalog Server
Lesson 29 - What is Universal Group Membership caching
Lesson 30 - How to configure Universal Group Membership caching
Lesson 31 - Operations Master Roles (Flexible Single Master Operations - FSMO)
Lesson 32 - How to transfer Operations Master roles (FSMO) to another Domain Controller
Lesson 33 - How to seize Operations Master (FSMO) roles using ntdsutil tool
Part 04- User and Group Administration
Lesson 01 - Introduction to Windows 2003 User accounts
Lesson 02 - Windows 2003 Local User Accounts
Lesson 03 - Windows 2003 Built-in User Accounts
Lesson 04 - Windows 2003 Active Directory Domain User Accounts
Lesson 05 - Windows 2003 Logon Names
Lesson 06 - UPN (User Principal Name) Suffixes
Lesson 07 - How to create an Active Directory Domain user account
Lesson 08 - Modifying and administering Active Directory Domain User Accounts
Lesson 09 - How to reset Active Directory domain user password
Lesson 10 - How to unlock an Active Directory Domain User Account
Lesson 11 - How to rename an Active Directory Domain user account
Lesson 12 - How to delete an Active Directory Domain user account
Lesson 13 - How to copy an Active Directory Domain user account
Lesson 14 - How to enable/disable Active Directory Domain User Account
Lesson 15 - Active Directory Domain User Password Policy
Lesson 16 - Active Directory Domain User Account Lockout Policy
Lesson 17 - Introduction to Windows 2003 Groups
Lesson 18 - What is the difference between Security Group and Distribution Group
Lesson 19 - Group Scope - Domain Local, Global and Universal Group Scopes
Lesson 20 - How to create an Active Directory Group
Lesson 21 - How to add an Active Directory User to a Group
Part 05 - Windows 2003 Clustering Technologies
Lesson 01 - Introduction to Windows 2003 Clustering
Lesson 02 - Introduction to Network Load Balancing (NLB)
Lesson 03 - Network Load Balancing (NLB) - Unicast and Multicast modes
Lesson 04 - Network Load Balancing (NLB) cluster models
Lesson 05 - Network Load Balancing Manager (nlbmgr.exe)
Lesson 06 - How to create Network Load Balancing (NLB) cluster using nlbmgr.exe
Lesson 07 - Network Load Balancing Client Affinity and Port Configurations
Lesson 08 - How to add a node to Windows 2003 Network Load Balancing Cluster
Lesson 09 - Introduction to Windows 2003 Failover Server Clustering
Lesson 10 - Important definitions related with Server Failover Clustering
Lesson 11 - What is failover and failback
Lesson 12 - Server Cluster Resources and Resource Groups
Lesson 13 - Different types of Failover Server Clusters - Single-Quorum Cluster, Single Local Quorum and Majority Node Set (MNS)
Lesson 14 - Failover Server Cluster Modes - Active/Passive and Active/Active
Lesson 15 - Failover Server Cluster Pre-installation check-lists
Lesson 16 - How to install a Failover Server Cluster
Lesson 17 - How to add a node to a Failover Server Cluster
Part 06 - Windows 2003 Group Policy
Lesson 01: Introduction to Windows 2003 Group Policy
Lesson 02: Local Group policy
Lesson 03: Non-Local Group Policy
Lesson 04: Group Policy Processing Order
Lesson 05: Group Policy Object Editor
Lesson 06 Group Policy Settings
Lesson 07: Group Policy Inheritance
Lesson 08: Group Policy Loop Back Processing
Lesson 09: Group Policy Update Using gpupdate tool
Lesson 10: Local User Profiles
Lesson 11: Roaming Profiles and Mandatory Profiles
Lesson 12 - User Profile Folder Redirection
Lesson 13 - The Resultant Set of Policy (RSoP)
Lesson 14 - Configuring logon/logoff and startup/shutdown scripts
Lesson 15 - Deploying Software with Group Policy
Lesson 16 - Software Restriction policies
VI - GNU/Linux
Part 1 - RedHat Certified Engineer (RHCE)
Lesson 01 - UNIX History
Lesson 02 - GNU/Linux Introduction
Lesson 03 - GNU/Linux Concepts
Lesson 04 - Difference between Fedora and RedHat Enterprise Linux
Lesson 05 - Major GNU/Linux Distributions
Lesson 06 - GNU/Linux Kernel and Shell
Lesson 07 - GNU/Linux File System
Lesson 08 - What is inode number?
Lesson 09 - GNU/Linux File System Hierarchy
Lesson 10 - GRUB (GNU GRand Unified Boot loader)
Lesson 11 - Working with grub.conf configuration file
Lesson 12 - How to password protect GRUB (GNU GRand Unified Boot loader)
Lesson 13 - Linux Rescue Mode (Linux Rescue Environment)
Lesson 14 - init process and Linux runlevels
Lesson 15 - inittab configuration file
Lesson 16 - Working with inittab configuration file
Lesson 17 - inittab format
Lesson 18 - Creating and editing text files using vi editor
Lesson 19 - Linux File System Management Tools - fdisk command
Lesson 20 - Linux File System Management Tools - mkfs, mkfs.ext2, mkfs.ext3 commands
Lesson 21 - What is file system journaling?
Lesson 22 - Linux File System Management Tools - fsck command
Lesson 23 - Introduction to Linux /etc/fstab file
Lesson 24 - Linux mount and umount commands
Lesson 25 - Linux mount options
Lesson 26 - Introduction to Bourne Again Shell (BASH)
Lesson 27 - Basic Linux commands
Lesson 28 - Introduction to Logical Volume Manager (LVM)
Lesson 29 - How to create and manage Logical Volume Manager (LVM)
Lesson 30 - Introduction to Redundant Array of inexpensive (or Independent) Disks (RAID)
Lesson 31 - How to create and manage Redundant Array of Inexpensive Disks (RAID)
Lesson 32 - Introduction to swap space
Lesson 33 - How to create and manage swap space
Lesson 34 - Introduction to Linux user administration
Lesson 35 - How to add a user in Linux using useradd command
Lesson 36 - How to use passwd command to manage user passwords
Lesson 37 - How to modify a Linux user using usermod command
Lesson 38 - How to set Linux password aging using chage command
Lesson 39 - How to remove user from Linux using userdel command
Lesson 40 - The Linux user database (/etc/passwd)
Lesson 41 - The Linux password database (/etc/shadow)
Lesson 42 - Introduction to Linux User Group
Lesson 43 - How to create a new group in Linux using groupadd command
Lesson 44 - Linux Group Database (/etc/group) file
Lesson 45 - How to manage Linux user group
Lesson 46 - The Linux File Permissions
Lesson 47 - How to use chmod command to change Linux file permissions
Lesson 48 - How to use chgrp command to change Linux group ownership of a file
Lesson 49 - How to use chown command to change linux user ownership of a file
Lesson 50 - Linux setuid and setgid
Lesson 51 - What is Linux umask?
Lesson 52 - What is Security-enhanced Linux (SELinux), Discretionary Access Control (DAC), Mandatory Access Control (MAC) and Role-based Access Control (RBAC)?
Lesson 53 - Security-enhanced Linux (SELinux) Security Contexts
Lesson 54 - How Security-enhanced Linux (SELinux) works
Lesson 55 - Security-enhanced Linux (SELinux) configuration-file (/etc/selinux/conf)
Lesson 56 - Security-enhanced Linux (SELinux) - Filesystem Relabeling
Lesson 57 - Important Security-enhanced Linux (SELinux) commands
Lesson 58 - Introduction to Linux Disk Quota
Lesson 59 - How to create Linux disk quota database files (aquota.group and aquota.user) using quotacheck command
Lesson 60 - How to turn on and turn off Linux disk quota using quotaon and quotaoff commands
Lesson 61 - How to manage Linux disk quota using edquota and repquota commands
Lesson 62 - Introduction to scheduling tasks using Linux cron daemon
Lesson 63 - How to schedule a task using Linux crontab (/etc/crontab) file
Lesson 64 - How to schedule tasks using Linux at command
Lesson 65 - Linux File filter commands sort wc and grep
Lesson 66 - How to compress, uncompress and view files using Linux commands gzip, gunzip and zcat
Lesson 67 - How to compress uncompress view files using Linux commands bzip2 bunzip2 and bzcat
Lesson 68 - How to use Linux tar (tape archive) command to create archives
Lesson 69 - Introduction to RedHat Package Manager (RPM)
Lesson 70 - Introduction to YUM (Yellow dog Updater, Modified) Package Manager
Lesson 71 - Common Linux network tools - ping, telnet, netstat and arp
Lesson 72 - Linux xinetd Super Server daemon
Lesson 73 - Linux Network Interface Configuration tool - ifconfig
Lesson 74 - Important Linux network configuration files
Lesson 75 - How to configure Dynamic Host Configuration (DHCP) Protocol in Linux
Lesson 76 - Introduction to Domain Name System (DNS)
Lesson 77 - Linux Domain Name System (DNS) client configuration files /etc/hosts, /etc/nsswitch.conf and /etc/resolv.conf
Lesson 78 - Berkeley Internet Name Domain (BIND) as a DNS server
Lesson 79 - How to configure caching-only name server
Lesson 80 - BIND configuration file (/etc/named.conf)
Lesson 81 - Domain Name System (DNS) zone files
Lesson 82 - RNDC (Remote Name Daemon Control)
Lesson 83 - Introduction to Secure Shell and OpenSSH
Lesson 84 - Important OpenSSH client tools - scp, sftp, ssh, ssh-keygen, ssh-copy-id, slogin
Lesson 85 - OpenSSH Configuration Files
Lesson 86 - How to mount a remote File System using Network File System (NFS)
Lesson 87 - How to configure Very Secure File Transfer Protocol Daemon (vsFTPd)
Lesson 88 - Introduction to Network Time Protocol (NTP)
