I have experience in deploying and maintaining of:
Cloud Computing Platforms:
AWS Amazon Web Services,Microsoft AZURE, Google Cloud (GCP).
Server Operating Systems:
Windows Server 2003-to-2012R2, Windows Server 2016 Amazon Linux, Debian, RHEL, CentOS, Ubuntu.
Web servers and servlets containers:
IIS, APACHE, NGINX, DOCKER
Mail servers:
POSTFIX, EXIM, MS Exchange 2000-to-2013, MS Exchange 2016, QMAIL
Database servers:
MySQL, MS SQL
Virtualization:
MS Hyper-V, VMware Server(ESXI), VirtualBox.
Directory service:
Active Directory, OpenLDAP.
File servers:
IIS FTP, proftpd, FileZilla FTP Server, SAMBA.
Firewalls:
Windows firewall,ISA/Forefront TMG, MikroTik,PFSense Zywall and other Routers;
Data Storage Systems:
Netapp, FAS, EMC, VNX
Virtual Private Network (VPN)
OpenVPN, IPSEC,P2P,S2S VPN, Microsoft VPN, OpenConnect VPN , Mikrotik VPN , PFsense VPN.
Hosting Panels: PLESK,cPanel,Website Panel