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Tutorial - Unix Network Programming - RPC

Overview : In this tutorial, you will access your UNIX account to test some RPC programs.

Activity 1: Install PuTTY (an SSH/telnet client)

• Go to http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
• Download http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe
• Install it in your PC.

Activity 2: Telnet/SSH your UNIX account

• Use PuTTY to access your UNIX account.

• Try the following UNIX commands

      cal      Display a calendar
      ls       List information about file(s)
      mkdir    Create new folder(s)
      passwd   Modify a user password
      ps       Process status
      pwd      Print Working Directory

Activity 3: Install FileZilla (a FTP client)

• Go to http://filezilla-project.org/download.php
• Install FileZilla in your PC

Activity 4: Put some files in your UNIX account

• Use FileZilla to access your UNIX account.
• You can use Port 21 (FTP) or Port 22 (SSH) in your connection.

• Put all the sample RPC program shown in this lecture in your UNIX account.

Activity 5: Compile and test RPC programs

• Complie and test the RPC program shown in this lecture.

      >rpcgen date.x

      >cc –c chkdate.c chkdate.o
      >cc –c date_clnt.c date_clnt.o
      >cc –o chkdate chkdate.o date_clnt.o -lrpc

      >cc –c date_server.c date_server.o
      >cc –c date_svc.c date_svc.o
      >cc –o date_server date_server.o date_svc.o -lrpc

      >./date_server &

      >./chkdate localhost

Activity 6: More RPC testing

• Go to this website http://www.cs.rpi.edu/~hollingd/netprog/code/rpc/ to find more examples of RPC systems.
• Try to get the "simple: remote integer add and subtract procedures" work in your UNIX account.

Remark: Assign your own program number to aviod conflict with your classmates

• The program numbers are 32-bit integers that are assigned as follows:

      0x00000000 — 0x1fffffff is defined by Sun machine.
      0x20000000 — 0x3fffffff is defined by users.
      0x40000000 — 0x5fffffff is for transient.
      0x60000000 — 0xffffffff is reserved for future use.

Submission

• You need to demonstrate your work to Steven in a tutorial session. Steven may ask you some questions to test your knowledge.