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Monitor

Monitor. (8180). Start the Active Client. Monitor. (8180). Active Client. (20287). Make a connection to the Monitor. Monitor. (8180). (8180). Active Client. (20287). (8180). Active Client Code:. Socket skt = new Socket("helios.ececs.uc.edu", 8180);

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Monitor

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  1. Monitor (8180)

  2. Start the Active Client Monitor (8180) Active Client (20287)

  3. Make a connection to the Monitor Monitor (8180) (8180) Active Client (20287) (8180) Active Client Code: Socket skt = new Socket("helios.ececs.uc.edu", 8180); out = new PrintWriter(skt.getOutputStream(), true); isr = new InputStreamReader(skt.getInputStream()); is = new BufferedReader(isr); is.readLine();

  4. Receive IDENT message group from Monitor Monitor (8180) (8180) Active Client (20287) (20287) Login Protocol: COMMENT: Monitor Version 2.2 REQUIRE: IDENT WAITING:

  5. Send IDENT command to Monitor Monitor (8180) (8180) Active Client (20287) (8180) Login Protocol: IDENT FRANCO

  6. Get PASSWORD directive from Monitor Monitor (8180) (8180) Active Client (20287) (20287) Login Protocol: RESULT: IDENT REQUIRE: PASSWORD WAITING:

  7. Send Password to Monitor Monitor (8180) (8180) Active Client (20287) (8180) Login Protocol: PASSWORD EYES_ARE_BLUE

  8. Get HOST_PORT directive & cookie from Monitor Monitor (8180) (8180) Active Client (20287) (20287) Login Protocol: RESULT: PASSWORD UYERWEEIOUYTUIU REQUIRE: HOST_PORT WAITING:

  9. Start Server Server Monitor (21567) (8180) (8180) Active Client (20287) Login Protocol:

  10. Send Server port (host port) to Monitor Server Monitor (21567) (8180) (8180) Active Client (20287) (8180) Login Protocol: HOST_PORT gauss.ececs.uc.edu 21567

  11. Get checksum from Monitor Server Monitor (21567) (21567) (8180) (8180) Active Client (20287) Are You Alive Transaction: COMMENT: Monitor Version 2.2 PARTICIPANT_PASSWORD_CHECKSUM: 78a74b94cd3778ef36635 REQUIRE: IDENT WAITING:

  12. Send IDENT command to Monitor Server Monitor (21567) (8180) (8180) (8180) Active Client (20287) Are You Alive Transaction: IDENT FRANCO

  13. Get checksum from Monitor Server Monitor (21567) (21567) (8180) (8180) Active Client (20287) Are You Alive Transaction: REQUIRE: ALIVE WAITING:

  14. Send ALIVE command to Monitor Server Monitor (21567) (8180) (8180) (8180) Active Client (20287) Are You Alive Transaction: ALIVE UYERWEEIOUYTUIU

  15. Complete ALIVE transaction Server Monitor (21567) (21567) (8180) (8180) Active Client (20287) Are You Alive Transaction: RESULT: ALIVE Identity has been verified REQUIRE: QUIT WAITING:

  16. Complete ALIVE transaction Server Monitor (21567) (8180) (8180) (8180) Active Client (20287) Are You Alive Transaction: QUIT

  17. Complete ALIVE transaction Server Monitor (21567) (21567) (8180) (8180) Active Client (20287) Are You Alive Transaction: RESULT: QUIT

  18. Complete Login transaction Server Monitor (21567) (8180) (8180) Active Client (20287) (20287) Login Protocol: RESULT: HOST_PORT GAUSS.ECECS.UC.EDU 21567

  19. Server Monitor (21567) (8180) (8180) Active Client (20287) Active Client may issue commands for 3 minutes Server waits for ALIVE requests from Monitor

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