Windows server 2008, 2012, 2016 installation, Active directory, dns, dfs replication, MS exchange server 2008, 2010, 2012, 2016, group policies, hyper v, veeam 9, 9.5, 11 config, esxi server, esxi 5.5, 6.0, 6.5, 7.0, papercut printing service, sql server, linux administration, ip tables, ssh config, ldap