Hi,
I have 19 years of experience as a systems administrator. I am Docker certified too.
I have been working on AWS since more than 10 years.
Server OS:-
Linux (Any flavor of Redhat, CentOS, Debian & Fedora), Windows (All Versions)
Client OS:-
Windows Windows7,10, XUbuntu, MAC OS
Web Servers:-
Apache, Nginx, IIS, Tomcat
Mail Servers:-
Qmail, Sendmail, Postfix, MSExchange, Smartermail, Exim
Database:-
MySQL, MSSQL
Control Panels:-
Dotnet Panel, Helm, Plesk, Cpanel, Hosting Controller, HSphere, Ensim, Website Panel, Enkompass
Security:-
Iptables, Sonicwall, mod_security, ISA, PCI compliance, nessus (Security Scanner), Nikto(Security Scanner)
Database Management:-
Oracle, MSSQL and MySQL
Virtual Private Server:-
OpenVZ, Virtuozzo, VMware, HyperMV for linux, Hyper-V for windows Layered Panel and Citrix
PCI Scanning:-
McAfee, 403Labs, EmerchantPay
Cloud Technologies:-
Openstack, VMWare, OnApp, Cloudstack, Amazon, Rackspace, Microsoft Azure
And Docker too.