Unix, Networking Concepts, Switches, Ccna, Firewalls, Linux Os, Tcp/ip, network infrastructure, virtualization, Vlans, Network Architecture, Freebsd, Osi Model, basic scripting, Nozomi Networks products, OT ICS environments and protocols, API usage, cybersecurity principles, PCAP analysis, Active Directory, CompTIA Network+, Security Architecture, CompTIA Security+, GICSP