CIA - Classical Internet Applications course: CIA-Lab-1: Configuring DHCP service Configuring PXE service to install Ubuntu OS on clients machines GPT, MBR, Protective MBR (Partition Table, Dumps) CIA-Lab-2: Booting process Initializing the OS ELF format gcc compiler Stripped and non-stripped binaries CIA-Lab-3: DNS with BIND: Caching Name Server Authoritative Name Server Delegating Zone Zone Transfers CIA-Lab-4: DNSSec with BIND: Zone signing Key Rollovers DoH(DNS-over-HTTPS) with BIND Secure Zone Delegation NSEC, NSEC3 CIA-Lab-5: Configuring Mail Transfer Agents - exim for BIND: SPF/DKIM Mail backup Virtual Domains Transport Encryption Mailgun to bypass limitation of 25th port on cloud CIA-Lab-6: Nginx: Configuring DNS Zone for HTML pages Configuring SSL/TLS GeoIP