The Infrastructure section provides a wide variety of information for individuals and organizations interested in benefitting from the experience of others for configuring software that implements network and infrastructure services. Examples of such services are cloud services, domain name service (DNS), host naming (DHCP), mail transport (SMTP), Microsoft Active Directory (AD), multicast, Postfix, Sendmail, Stateless Address Autoconfiguration (SLAAC), Virtual Private Networks (VPNs) and various web servers.