Emphasis is placed on the theory and practice associated with the implementation and use of the most common processto-process communications associated with UNIX. The interprocess communications comprise both local and distributed architectures. The distributed communications protocols include those most widely implemented and used: the worldwide Internet protocol suite [the Transmission Control Protocol/ Internet Protocol (TCP/IP), and the U.S. government-mandated International Organization for Standardization (ISO) protocol suite]. Practical skills are developed, including the ability to implement and configure protocol servers (daemons) and their clients. Students are expected to have working knowledge of UNIX.
The course content is divided into modules. Course Modules can be accessed from the Course Modules page located on the left navigation. A module will have four main sections: Overview, Learning Guide, Content, and Assignments. Students are encouraged to preview all sections of the module before starting. Modules run for a period of seven (7) days. Module start dates are clearly posted on the Course Calendar. Students should regularly check the Calendar for assignment due dates.
One goal of this course is to design and implement effective and efficient network clients and servers in the TCP/IP protocol family. Another goal is to develop protocol independent solutions. A third goal is to be able to critique current network Application Program Interfaces (APIs) with an eye toward future APIs
Stevens, W.R., et. al. (2003) UNIX network programming, The sockets networking API, (3rd ed.)
For this course, you are provided with UNIX accounts on dev4.jhuep.com (a Solaris machine) and absaroka.jhuep.com (a Linux machine). Login access to this server is via the SSH protocol. Thus, in order for you to easily interact with the UNIX system you must get a secure terminal emulation program that uses ssh. There are several good programs available for free; for example PuTTY, a free software program available from http://www.chiark.greenend.org.uk/~sgtatham/putty/ can be used on Windows platforms; if you have a Mac or a Linux system, you can simply use the ssh program there.
You may also want to be able to transfer files between your system and the UNIX systems. Some type of "file transfer protocol" (FTP) client will be required. I recommend that you try "FileZilla", which can be downloaded from: http://sourceforge.net/project/showfiles.php?group_id=21558. Make sure when you install this program, you configure it to use SFTP (Secure FTP). Again, of course, if you have a Mac or a Linux system, you can simply use the sftp program.
It is expected that each module will take approximately 7–10 hours per week to complete. Here is an approximate breakdown: reading the assigned sections of the texts (approximately 2–3 hours per week) as well as some outside reading, listening to the audio annotated slide presentations (approximately 1-2 hours per week), and project assignments (approximately 3–5 hours per week).
Note that the projects are spread out over several weeks or modules, so if a student does not put the time into the project during the initial days of the project assignment, a student will need to make up that time as the due date of the project approaches. In other words, course work will be available to allow students to maintain a consistent week by week workload, but procrastination may require a heavier workload as the due date of a project approaches.
This course will consist of three basic student requirements:
1. Module Discussions (30% of Final Grade Calculation)
2. Projects (50% of Final Grade Calculation)
3. Quizzes (20% of Final Grade Calculation)
There shall be several short on-line quizzes throughout the course, at most one per module. These quizzes shall be true/false, multiple choice, and short answer, and are usually taken directly from the module content. These assessments are generally timed at about an hour each. The quizzes are "open-book", however, when taking the quiz, you must limit yourself to the module content, your notes, your text, and one other external reference. No "google" please!
Each quiz will be worth 100 percentage points. The quizzes shall be averaged together to provide a score which will make up 20% of your final grade.
Student assignments are due according to the dates in the Calendar and assignment item within the corresponding module. Grades will be posted one week after assignment due dates.
We generally do not directly grade spelling and grammar. However, egregious violations of the rules of the English language will be noted without comment. Consistently poor performance in either spelling or grammar is taken as an indication of poor written communication ability that may detract from your grade.
A grade of A indicates achievement of consistent excellence and distinction throughout the course—that is, conspicuous excellence in all aspects of assignments and discussion in every week. A grade of B indicates work that meets all course requirements on a level appropriate for graduate academic work.
These criteria apply to both undergraduates and graduate students taking the course.
100–90 = A
89–80 = B
79–70 = C
Final grades will be determined by the following weighting:
|% of Grade
Deadlines for Adding, Dropping and Withdrawing from Courses
Students may add a course up to one week after the start of the term for that particular course. Students may drop courses according to the drop deadlines outlined in the EP academic calendar (https://ep.jhu.edu/student-services/academic-calendar/). Between the 6th week of the class and prior to the final withdrawal deadline, a student may withdraw from a course with a W on their academic record. A record of the course will remain on the academic record with a W appearing in the grade column to indicate that the student registered and withdrew from the course.
Academic Misconduct Policy
All students are required to read, know, and comply with the Johns Hopkins University Krieger School of Arts and Sciences (KSAS) / Whiting School of Engineering (WSE) Procedures for Handling Allegations of Misconduct by Full-Time and Part-Time Graduate Students.
This policy prohibits academic misconduct, including but not limited to the following: cheating or facilitating cheating; plagiarism; reuse of assignments; unauthorized collaboration; alteration of graded assignments; and unfair competition. Course materials (old assignments, texts, or examinations, etc.) should not be shared unless authorized by the course instructor. Any questions related to this policy should be directed to EP’s academic integrity officer at email@example.com.
Students with Disabilities - Accommodations and Accessibility
Johns Hopkins University values diversity and inclusion. We are committed to providing welcoming, equitable, and accessible educational experiences for all students. Students with disabilities (including those with psychological conditions, medical conditions and temporary disabilities) can request accommodations for this course by providing an Accommodation Letter issued by Student Disability Services (SDS). Please request accommodations for this course as early as possible to provide time for effective communication and arrangements.
For further information or to start the process of requesting accommodations, please contact Student Disability Services at Engineering for Professionals, firstname.lastname@example.org.
Student Conduct Code
The fundamental purpose of the JHU regulation of student conduct is to promote and to protect the health, safety, welfare, property, and rights of all members of the University community as well as to promote the orderly operation of the University and to safeguard its property and facilities. As members of the University community, students accept certain responsibilities which support the educational mission and create an environment in which all students are afforded the same opportunity to succeed academically.
For a full description of the code please visit the following website: https://studentaffairs.jhu.edu/policies-guidelines/student-code/
JHU is committed to creating a classroom environment that values the diversity of experiences and perspectives that all students bring. Everyone has the right to be treated with dignity and respect. Fostering an inclusive climate is important. Research and experience show that students who interact with peers who are different from themselves learn new things and experience tangible educational outcomes. At no time in this learning process should someone be singled out or treated unequally on the basis of any seen or unseen part of their identity.
If you have concerns in this course about harassment, discrimination, or any unequal treatment, or if you seek accommodations or resources, please reach out to the course instructor directly. Reporting will never impact your course grade. You may also share concerns with your program chair, the Assistant Dean for Diversity and Inclusion, or the Office of Institutional Equity. In handling reports, people will protect your privacy as much as possible, but faculty and staff are required to officially report information for some cases (e.g. sexual harassment).
When a student enrolls in an EP course with “audit” status, the student must reach an understanding with the instructor as to what is required to earn the “audit.” If the student does not meet those expectations, the instructor must notify the EP Registration Team [EP-Registration@exchange.johnshopkins.edu] in order for the student to be retroactively dropped or withdrawn from the course (depending on when the "audit" was requested and in accordance with EP registration deadlines). All lecture content will remain accessible to auditing students, but access to all other course material is left to the discretion of the instructor.