piHole - All-around DNS solution server piHole - VM configuration piHole - OS Configuration The following subsections from Common section should be performed in this order: SSH configuration Ubuntu - Synchronize time with ntpd Update system timezone Correct DNS resolution Generate Gmail App Password Configure Postfix Server to send email through Gmail Mail notifications for SSH dial-in piHole - Setup piHole - Ubound as a recursive DNS server piHole - Local DNS configuration