Difference between revisions of "COMP 3000 Lab 5 2012"
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==Part A== | ==Part A== | ||
Note the answers for this part go in a file PART-A, with each answer on a line by itself, starting with the first line. There should be '''no''' line numbers; just the commands that are asked for. Expect these answers to be graded automatically! | |||
# Install the <tt>dpkg-dev</tt> package. Give the exact apt-get command you used to install it. | # Install the <tt>dpkg-dev</tt> package. Give the exact apt-get command you used to install it. | ||
# Install the <tt>netcat-traditional</tt> package. Give the exact apt-get command you used to install it. | # Install the <tt>netcat-traditional</tt> package. Give the exact apt-get command you used to install it. | ||
# Download the source for <tt>netcat-traditional</tt>. Give the exact apt-get command you used to download the source. | |||
# Give the command to make netcat (nc) listen on port 4000 for incoming connections and execute /usr/bin/bc on every connection. (Note it will be difficult to do this if you use the netcat-openbsd package.) | |||
# Give the command needed to have netcat connect to the server you created in the previous question. Connect from the same machine, i.e., use "localhost" as the host. | |||
==Part B== | ==Part B== | ||
Revision as of 14:33, 28 October 2012
In this lab you will be creating a new package for ubuntu called netcat-comp3000, based on the netcat-traditional package. We will be grading the .deb file you create using scripts, so be sure to follow the directions below carefully!
(Note that there exist other netcat packages, such as netcat-openbsd. Please use netcat-traditional for this lab!)
You will submit a file netcat-comp3000_1.10-39comp3000_amd64.deb or netcat-comp3000_1.10-39comp3000_i386.deb, depending on whether you are running a 64 or 32-bit version of Ubuntu 12.04. The answers to Part A should appear in a file /usr/share/doc/netcat-comp3000/PART-A when the package is installed, with each answer appearing on one line, and with the very first answer appearing on the very first line of the file. This file MUST be a UNIX next file (delimited by LF)!
If you do not manage to finish Part B, just submit this answers file for partial credit.
Part A
Note the answers for this part go in a file PART-A, with each answer on a line by itself, starting with the first line. There should be no line numbers; just the commands that are asked for. Expect these answers to be graded automatically!
- Install the dpkg-dev package. Give the exact apt-get command you used to install it.
- Install the netcat-traditional package. Give the exact apt-get command you used to install it.
- Download the source for netcat-traditional. Give the exact apt-get command you used to download the source.
- Give the command to make netcat (nc) listen on port 4000 for incoming connections and execute /usr/bin/bc on every connection. (Note it will be difficult to do this if you use the netcat-openbsd package.)
- Give the command needed to have netcat connect to the server you created in the previous question. Connect from the same machine, i.e., use "localhost" as the host.
Part B
Outline for lab
- install netcat deb, binary package, run it, examine contents
- examine source package, modify, build binary package
- look at default configuration, work with debconf
- make netcat-based server that is started at boot time: server should print seconds since boot and student name?