5.9 Compare and contrast the following ports and protocols - Paiet/Tech-Journal-for-Everything GitHub Wiki

5.9 Compare and contrast the following ports and protocols

• 80 HTTP (Web) Unsecured access to Webpages TCP (SimpleDiagram)
• 443 HTTPS (Web) Secured access to Webpages TCP(SimpleDiagram)
• 137-139 NetBIOS
  • Broadcast only
  • Name resolution within LAN but not outside
  • Compare to DNS
• 110 POP (Email) Receiving Mail TCP (SimpleDiagram)
• 143 IMAP (Email) Mail managed on the server TCP (SimpleDiagram)
• 25 SMTP (Email) Sending Mail TCP (SimpleDiagram)
• 5060/5061 SIP (Session Initiation Protocol) UDP (SimpleDiagram)
  • Intiates session between two endpoints
  • Allow for both endpoints to transfer data
  • video conferencing, VoIP, and IM
  • used by carriers as replacement for needing to use PSTN protocols.
• 2427/2727 MGCP (Media Gateway Control Protocol)
  • Handles session management for voice and video.
  • Defines communication between media gateways when moving data between packet-switched and circuit- switched networks
  • if using PSTN gateway and IP networks together.
• 5004/5005 RTP (Realtime Transport Protocol) UDP (SimpleDiagram)
  • defacto standard packet-format for VoIP
  • defacto standard packet-format for streaming
  • traffic that happens after connection
• 1720 H.323 UDP
  • Standard for Video over IP networks
  • Signaling, Bandwidth and Multimedia controls
• TCP (Transmission Control Protocol) (SimpleDiagram)
  • Connection-oriented
  • "Reliable"
  • Requires both sides in communication to be synchronized before data is transmitted.
  • This is established by using a 3 way handshake SYN, SYN/ACK, ACK
  • Error correction possible (sequence numbers)
• UDP (User Datagram Protocol) (SimpleDiagram)
  • Connectionless
  • "Unreliable"
  • Does not require connection to send data.
  • No error correction no sequence numbers on data