I have more than 12 years experiencing managing Linux and Windows server, and this is my experience lists :
o Installing and maintain server using Linux Operating Systems from Ubuntu, Debian, RHEL, Oracle Linux Enterprise, CentOS, Windows Server 2000, 2003, 2008, 2012, 2016 Windows 7, 8.1, 10.
o AWS System Administrator; EC2, S3, VPC, Backup and Restore, etc.
o Create and maintain email server, using Cpanel, Iredmail and Zimbra
o Create and maintain DNS clustering server using BIND and Power DNS Recursor on Debian OS
o Create and maintain NS server clustering server using BIND and Power DNS Recursor
o Create and maintain Hosting Server using Cpanel, Zpanel, Sentora, and Centos Web Panel.
o Create and maintain VM using Proxmox, VMware Servers and Xen Hypervisor
o Monitoring server and mitigation security incident
o Pentest new Websites and new server
o Create Cacti server monitoring
o Create Mikrotik server monitoring
o Create / register new domain name