Notes for Computer Information Technology 160
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oct22-dns2.md 621B

October 22 - DNS Continued

Overview

  • Local files
    • /etc/services
    • /etc/resolv.conf
    • /etc/nsswitch.conf
    • /etc/hosts
  • BIND, Domain
  • DNS Records
  • Zone Files

Unix filesystem standards

  • bin - binary executables
  • sbin - system administator’s binary executables
  • etc - configuration files
  • tmp - temporary files (wiped on boot up)
  • var - writable, non-sharable files

Local files

  • /etc/resolve.conf lists the current dns server for resolving dns requests
  • /etc/hosts is a local list of dns entries
  • /etc/nsswitch.conf is the config of the GNU Name Service Switch