CompTIA Server+
1 Server Hardware
1-1 Server Types
1-1 1 Rack Servers
1-1 2 Tower Servers
1-1 3 Blade Servers
1-1 4 Micro Servers
1-1 5 Hyper-converged Infrastructure
1-1 6 Virtual Servers
1-2 Server Components
1-2 1 CPUs
1-2 2 Memory (RAM)
1-2 3 Storage Devices
1-2 4 Power Supply Units (PSUs)
1-2 5 Cooling Systems
1-2 6 Network Interface Cards (NICs)
1-2 7 Batteries and Uninterruptible Power Supplies (UPS)
1-2 8 Chassis and Enclosures
1-3 Server Form Factors
1-3 1 ATX
1-3 2 EATX
1-3 3 MicroATX
1-3 4 Mini-ITX
1-3 5-1U, 2U, 4U
1-4 Server Management
1-4 1 Remote Management Interfaces
1-4 2 Out-of-Band Management
1-4 3 In-Band Management
1-4 4 KVM (Keyboard, Video, Mouse) Switches
1-4 5 Serial Console
2 Server Virtualization
2-1 Virtualization Concepts
2-1 1 Hypervisors
2-1 2 Type 1 Hypervisors
2-1 3 Type 2 Hypervisors
2-1 4 Virtual Machines (VMs)
2-1 5 Virtual Disks
2-1 6 Virtual Networking
2-2 Virtualization Platforms
2-2 1 VMware vSphere
2-2 2 Microsoft Hyper-V
2-2 3 Citrix XenServer
2-2 4 KVM (Kernel-based Virtual Machine)
2-3 Virtual Machine Management
2-3 1 VM Creation
2-3 2 VM Configuration
2-3 3 VM Migration
2-3 4 VM Cloning
2-3 5 VM Snapshots
2-4 Resource Management
2-4 1 CPU Allocation
2-4 2 Memory Allocation
2-4 3 Storage Allocation
2-4 4 Network Allocation
3 Server Storage
3-1 Storage Technologies
3-1 1 Direct-Attached Storage (DAS)
3-1 2 Network-Attached Storage (NAS)
3-1 3 Storage Area Network (SAN)
3-1 4 Object Storage
3-1 5 Cloud Storage
3-2 Storage Protocols
3-2 1 SCSI (Small Computer System Interface)
3-2 2 SATA (Serial Advanced Technology Attachment)
3-2 3 SAS (Serial Attached SCSI)
3-2 4 iSCSI (Internet Small Computer System Interface)
3-2 5 Fibre Channel
3-2 6 NFS (Network File System)
3-2 7 SMBCIFS (Server Message BlockCommon Internet File System)
3-3 RAID (Redundant Array of Independent Disks)
3-3 1 RAID 0
3-3 2 RAID 1
3-3 3 RAID 5
3-3 4 RAID 6
3-3 5 RAID 10
3-3 6 RAID Levels Comparison
3-4 Storage Management
3-4 1 Disk Partitioning
3-4 2 File Systems
3-4 3 Volume Management
3-4 4 Backup and Recovery
3-4 5 Data Deduplication
4 Server Networking
4-1 Network Protocols
4-1 1 TCPIP
4-1 2 DNS (Domain Name System)
4-1 3 DHCP (Dynamic Host Configuration Protocol)
4-1 4 HTTPHTTPS
4-1 5 FTP (File Transfer Protocol)
4-1 6 SMTP (Simple Mail Transfer Protocol)
4-1 7 SNMP (Simple Network Management Protocol)
4-2 Network Configuration
4-2 1 IP Addressing
4-2 2 Subnetting
4-2 3 VLANs (Virtual Local Area Networks)
4-2 4 Routing
4-2 5 Firewall Configuration
4-3 Network Services
4-3 1 Web Servers
4-3 2 Mail Servers
4-3 3 File Servers
4-3 4 Print Servers
4-3 5 Database Servers
4-4 Network Security
4-4 1 Encryption
4-4 2 Authentication
4-4 3 Access Control
4-4 4 Intrusion Detection and Prevention
4-4 5 VPN (Virtual Private Network)
5 Server Maintenance and Troubleshooting
5-1 Hardware Maintenance
5-1 1 Component Replacement
5-1 2 Firmware Updates
5-1 3 Driver Updates
5-1 4 Regular Cleaning
5-2 Software Maintenance
5-2 1 Operating System Updates
5-2 2 Application Updates
5-2 3 Patch Management
5-2 4 Backup Procedures
5-3 Troubleshooting Techniques
5-3 1 Diagnostic Tools
5-3 2 Error Logs
5-3 3 System Monitoring
5-3 4 Performance Tuning
5-4 Disaster Recovery
5-4 1 Backup Strategies
5-4 2 Restore Procedures
5-4 3 Failover and Failback
5-4 4 Business Continuity Planning
6 Server Security
6-1 Security Concepts
6-1 1 Confidentiality
6-1 2 Integrity
6-1 3 Availability
6-2 Security Measures
6-2 1 Physical Security
6-2 2 Network Security
6-2 3 Data Encryption
6-2 4 User Authentication
6-2 5 Role-Based Access Control (RBAC)
6-3 Security Protocols
6-3 1 SSLTLS
6-3 2 SSH (Secure Shell)
6-3 3 IPSec
6-3 4 Kerberos
6-4 Security Best Practices
6-4 1 Regular Audits
6-4 2 Security Policies
6-4 3 Incident Response
6-4 4 Compliance
7 Server Administration
7-1 User Management
7-1 1 User Accounts
7-1 2 Group Management
7-1 3 Permissions and Access Rights
7-1 4 Password Policies
7-2 System Configuration
7-2 1 Time and Date Settings
7-2 2 Network Configuration
7-2 3 Resource Allocation
7-2 4 Service Management
7-3 Monitoring and Reporting
7-3 1 Performance Monitoring
7-3 2 Resource Utilization
7-3 3 Event Logs
7-3 4 Reporting Tools
7-4 Automation and Scripting
7-4 1 Task Automation
7-4 2 Scripting Languages
7-4 3 Configuration Management Tools
8 Server Compliance and Standards
8-1 Industry Standards
8-1 1 ISO Standards
8-1 2 ITIL (Information Technology Infrastructure Library)
8-1 3 COBIT (Control Objectives for Information and Related Technologies)
8-2 Regulatory Compliance
8-2 1 GDPR (General Data Protection Regulation)
8-2 2 HIPAA (Health Insurance Portability and Accountability Act)
8-2 3 PCI DSS (Payment Card Industry Data Security Standard)
8-3 Best Practices
8-3 1 Documentation
8-3 2 Change Management
8-3 3 Risk Management
8-3 4 Continuous Improvement
6-1-1 Confidentiality Explained

6-1-1 Confidentiality Explained

Key Concepts

Data Confidentiality

Data Confidentiality refers to the protection of data from unauthorized access and disclosure. It ensures that sensitive information is only accessible to those who are authorized to view it. This is crucial for maintaining privacy and preventing data breaches.

Access Control

Access Control is the practice of restricting access to resources based on the user's role and permissions. It involves authentication (verifying the identity of users) and authorization (granting or denying access based on predefined rules). Effective access control ensures that only authorized users can access sensitive data.

Encryption

Encryption is the process of converting data into a code to prevent unauthorized access. It ensures that even if data is intercepted, it cannot be read without the decryption key. Encryption is widely used to protect data both at rest (stored data) and in transit (data being transferred).

Data Masking

Data Masking is a technique used to hide sensitive data from unauthorized users while still allowing it to be used for testing or analysis. This is often done by replacing sensitive data with fictitious data that looks real but does not contain actual sensitive information.

Least Privilege Principle

The Least Privilege Principle is a security concept that restricts users to the minimum level of access necessary to perform their job functions. This principle minimizes the risk of unauthorized access and reduces the impact of potential security breaches.

Examples and Analogies

Think of Data Confidentiality as a locked safe. Only those with the key (authorized users) can access the contents inside.

Access Control is like a bouncer at a club. They check your ID (authentication) and decide whether you can enter based on your status (authorization).

Encryption is akin to writing a secret message in code. Without the decoder ring (decryption key), the message remains unreadable.

Data Masking is like using a fake ID for testing purposes. It looks real, but it doesn't contain any actual personal information.

The Least Privilege Principle is similar to a bank teller who only has access to the cash drawer they are responsible for. They don't need access to the entire vault.