DNS courses can help you learn about domain name resolution, DNS architecture, and security protocols. You can build skills in configuring DNS servers, managing DNS records, and troubleshooting connectivity issues. Many courses introduce tools like BIND, DNSSEC, and various DNS management platforms, showing how these tools are used to ensure reliable and secure domain name services.

Birla Institute of Technology & Science, Pilani
Skills you'll gain: TCP/IP, Network Protocols, Network Security, Network Infrastructure, OSI Models, Network Architecture, Routing Protocols, General Networking, Wireless Networks, Computer Networking, Network Administration, Network Routing, Network Performance Management, Network Monitoring, Application Security, Network Model, Live Streaming, Software-Defined Networking, Digital Communications, Computer Security Awareness Training
Build toward a degree
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Network Monitoring, Network Performance Management, Network Administration, Network Security, Routing Protocols, Network Troubleshooting, OSI Models, TCP/IP, Computer Networking, Network Routers, Network Switches, General Networking, Command-Line Interface, Network Routing, Networking Hardware, Network Architecture, Network Infrastructure, Cybersecurity, Network Model, Network Protocols
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Wireless Networks, Network Performance Management, Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Ansible, Network Administration, Software-Defined Networking, Local Area Networks, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption, Authentications
Advanced · Course · 3 - 6 Months

Skills you'll gain: File Management, Remote Access Systems, Public Key Infrastructure, Software-Defined Networking, Microsoft Windows, Windows Servers, Network Troubleshooting, Microsoft Servers, Virtual Private Networks (VPN), Hardening, Computer Networking, Virtual Networking, Key Management, Active Directory, Firewall, File Transfer Protocol (FTP), Network Administration, Server Administration, Systems Administration, Administration
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Network Troubleshooting, Network Monitoring, Virtual Networking, Google Cloud Platform, General Networking, Network Administration, Network Infrastructure, Network Performance Management, Virtual Machines, System Configuration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Virtualization, Augmented and Virtual Reality (AR/VR), Cloud Computing Architecture, Virtualization and Virtual Machines, Network Administration, Cloud Computing, Firewall, Virtual Networking, Network Architecture, Virtual Private Networks (VPN), Mobile Security, Network Infrastructure, Cloud Services, General Networking, Augmented Reality, Cloud Security, Security Controls, Network Protocols, Peripheral Devices
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Intune (Mobile Device Management Software), Endpoint Security, Microsoft Windows, Authentications, Application Deployment, Operating System Administration, Cyber Security Policies, Azure Active Directory, Group Policy, Enterprise Application Management, Identity and Access Management, Security Controls, Cloud Deployment, Cloud Applications, Enterprise Security, Mobile Security, Endpoint Detection and Response, System Configuration, Security Management, User Provisioning
Intermediate · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Security Controls, Malware Protection, Security Engineering, Network Security, IT Security Architecture, Threat Detection, Firewall, Digital Forensics, Anomaly Detection, Code Review, Network Routing, Linux Commands, Proxy Servers, Linux, Internet Of Things
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Routing Protocols, Network Routing, Network Architecture, Network Planning And Design, General Networking, Computer Networking, System Programming, Data Integrity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Public Key Infrastructure, Cryptography, Key Management, Encryption, Windows Servers, Cryptographic Protocols, Infrastructure Security, Web Servers, Active Directory, Digital Communications, Microsoft Servers, Network Infrastructure, Authentications, Server Administration, System Configuration, Data Integrity, Data Migration
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Identity and Access Management, User Accounts, Role-Based Access Control (RBAC), Firewall, Nginx, Authorization (Computing), Virtual Networking, Network Administration, Network Security, Servers, Web Servers, Security Controls
Intermediate · Project · Less Than 2 Hours

Logical Operations
Skills you'll gain: Routing Protocols, Network Routing, Virtual Local Area Network (VLAN), TCP/IP, Network Administration, Network Switches, General Networking, Network Architecture, OSI Models, Network Routers, Network Planning And Design, Network Engineering, Local Area Networks, Networking Hardware, Computer Networking, Network Infrastructure, Network Model, Network Protocols, Command-Line Interface
Mixed · Course · 1 - 3 Months