Preliminaries

Figure 1093. External documentation Slide presentation

Tip

Whenever searching for Apache related documentation always include 2.4 in your query: Configuration file syntax changed considerably with respect to Apache version 2.2.


Figure 1094. URI to filesystem mapping Slide presentation

Figure 1095. Virtual hosting Slide presentation
  • One physical host system

  • Serving multiple sites e.g.:

    • https://www.foo.org

    • https://www.second.org


Figure 1096. Implementing virtual hosting Slide presentation
  1. Port based virtual hosting

  2. IP based virtual hosting

  3. Name based virtual hosting

    Typically using Server Name Indication (SNI)


Figure 1097. IP based virtual hosting Slide presentation

Figure 1098. IP based, pros / cons Slide presentation
  • Host system: One IP per site to serve

  • Pro: TLS handshake without SNI.

    Supporting older clients.

  • Downside:

    • IP address waste

    • Host system NIC configuration required


Figure 1099. Name based virtual hosting Slide presentation

Figure 1100. Name based, pros / cons Slide presentation
  • Host system: Common IP address

  • Pro

    • No IP address waste

    • No Host system NIC configuration required

  • Cons: Excluding older non SNI supporting clients.

    (Internet Explorer on Windows XP, Android below V. 2.3)

  • SNI allows for eavesdropping requested site's name.


Figure 1101. LDAP backed authentication Slide presentation

Figure 1102. PHP FPM server Slide presentation