
Coursera
Skills you'll gain: Linux Commands, Linux, Unix Commands, Command-Line Interface, File Management, System Configuration, Linux Administration, Package and Software Management, DevOps
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Virtual Private Networks (VPN), Linux Servers, Ubuntu, Network Troubleshooting, Authentications, Remote Access Systems, Encryption, Network Security, Linux, Network Monitoring, Network Performance Management, Cross Platform Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Security, Data Security
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Scripting, Linux Commands, Unix Commands, Command-Line Interface, Linux, File Management, Unix, File Systems, Systems Administration
Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Penetration Testing, Security Testing, Cybersecurity, Network Security, Brute-force attacks, TCP/IP, Network Monitoring, Vulnerability Assessments, Servers, Network Analysis, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Shell Script, Bash (Scripting Language), Linux Commands, Unix Shell, Linux, Scripting, Unix Commands, Scripting Languages, Debugging, Command-Line Interface, File I/O, Programming Principles
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Public Key Infrastructure, Cryptography, Key Management, Encryption, Windows Servers, Infrastructure Security, Active Directory, Network Infrastructure, Authentications, Cybersecurity, System Configuration, Configuration Management, Data Integrity
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Linux Commands, Linux, Command-Line Interface, Linux Administration, OS Process Management, Ubuntu, System Monitoring, Network Troubleshooting, File Transfer Protocol (FTP), File Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Public Key Infrastructure, Cloud Security, Hardening, Security Engineering, Infrastructure Security, Application Security, Information Systems Security, Network Security, Cyber Security Assessment, System Configuration, Cryptography, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Firewall, Proxy Servers, Encryption, Authentications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, OSI Models, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, TCP/IP, Network Administration, Wireless Networks, Network Protocols, General Networking, Intrusion Detection and Prevention, Local Area Networks, Network Routers, Security Controls, Mobile Security, Authentications, Authorization (Computing)
Beginner · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Bash (Scripting Language), Shell Script, Scripting, Command-Line Interface, Unix Shell, Unix Commands, Linux Commands, Unix, Linux, File I/O, File Management
Intermediate · Guided Project · Less Than 2 Hours