Networking

• HTTP
  • Query String
  • Chunked Transfer Encoding
  • Codes
    • Examples
  • Methods
    • GET
    • Difference Between POST and PUT
  • Persistent Connections
    • keepalive in Linux
  • Document Caching
  • Authentication
    • Basic Auth
    • Digest
    • Cookie Based
    • Certificate Based
  • HTTPS
    • Trusting a Web Site
    • TLS/SSL
    • Server Setup
    • Other Uses
  • nginx engineX
    • Permissions
    • Setting up Basic Auth
    • Setting up Digest Auth
  • Others
    • HTTPie - Command Line HTTP Client
• DNS
  • Overview
  • Typical Name Resolution
  • Protocol
  • DNS Database
    • Example named.hosts file for the Physics Department
  • Reverse Lookups
  • DNS Caches vs. DNS Servers vs. DNS Resolvers
  • Authoritative vs Non-authoritative Responses
  • Zone Tranfers
  • Anycast DNS
  • DNS Security
  • Examples
    • Query All Records using dig
• Firewall
  • First Generation: Packet Filters
  • Second Generation: Stateful Filters
  • Third Generation: application layer
• IP
  • Path MTU Discovery (PMUTD)
• tcpdump
  • Flags
  • Examples
    • Capturing ARP Traffic
    • Capturing Traffic on Localhost
    • Capturing GMail Traffic
    • Dropped Packets by the Kernel
    • Capturing TCP SYN Packets
    • Capture Outgoing SSH Traffic
    • Get Time Delta Between Request/Response
    • Capturing WiFi Packets
• Cheatsheet
  • Finding Duplicate IP Addresses on the Network
  • Capturing cupsd Traffic
• Troubleshooting
  • Identifying and Solving Performance Issues
  • Common Server Problems
  • Common AJAX Problems
  • Common App Engine Problems