Unit 3874: Network System Administration

1. Introduction to Network System Administration

• Definition and scope of network system administration
• Roles and responsibilities of a network administrator
• Key concepts: networks, servers, clients, protocols
• Importance of network management in organizational success

2. Network Design and Configuration

2.1 Network Topologies

• Types: star, bus, ring, mesh, hybrid
• Advantages and disadvantages of each topology

2.2 IP Addressing and Subnetting

• IPv4 and IPv6 addressing schemes
• Subnet masks and subnetting techniques
• CIDR notation and address allocation

2.3 Network Configuration

• Configuring routers, switches, and firewalls
• Implementing VLANs and routing protocols (e.g., OSPF, EIGRP)

2.4 Network Security Measures

• Firewalls and access control lists (ACLs)
• VPNs and secure remote access
• Introduction to encryption and authentication protocols

3. Network Monitoring and Troubleshooting

3.1 Monitoring Tools and Techniques

• SNMP, NetFlow, and packet analyzers (Wireshark)
• Network performance metrics and KPIs

3.2 Troubleshooting Common Network Issues

• Connectivity problems
• DNS and DHCP related issues
• Latency, packet loss, and bandwidth bottlenecks

3.3 Performance Optimization

• Load balancing and traffic shaping
• Quality of Service (QoS) configurations

4. User Account Management

• Creating and managing user accounts and groups
• Permissions and access control models (e.g., RBAC)
• Authentication methods: passwords, multi-factor authentication
• Authorization and auditing user activities

5. Data Backup and Recovery

5.1 Backup Strategies

• Full, incremental, and differential backups
• Backup media and storage options

5.2 Disaster Recovery Planning

• Risk assessment and business impact analysis
• Recovery point objectives (RPO) and recovery time objectives (RTO)
• Creating and testing disaster recovery plans

5.3 Ensuring Data Integrity

• Data verification and validation techniques
• Using checksums and hashes

6. Network Security and Compliance

6.1 Security Principles

• Confidentiality, integrity, availability (CIA triad)
• Common network threats: malware, phishing, DDoS attacks

6.2 Vulnerability Assessment and Management

• Scanning tools and penetration testing basics

6.3 Compliance Requirements

• Overview of standards: GDPR, HIPAA, PCI-DSS
• Implementing policies and controls to meet compliance

7. Virtualization and Cloud Computing

7.1 Virtualization Technologies

• Hypervisors: Type 1 and Type 2
• Virtual machines vs containers

7.2 Cloud Computing Concepts

• Service models: IaaS, PaaS, SaaS
• Deployment models: public, private, hybrid clouds

7.3 Managing Virtualized Environments

• Provisioning and managing virtual resources
• Security considerations in virtual and cloud environments

8. Network Automation and Scripting

• Benefits of automation in network management
• Common scripting languages: Python, PowerShell
• Automating configuration and monitoring tasks
• Tools and frameworks: Ansible, Puppet, Chef

9. Performance Optimization and Scalability

• Capacity planning and forecasting
• Scaling network infrastructure vertically and horizontally
• Implementing redundancy and failover mechanisms

10. Disaster Recovery Planning (Detailed)

• Identifying risks and critical network components
• Establishing backup and failover strategies
• Documenting and implementing recovery procedures
• Regular testing and updating of disaster recovery plans