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