Compare and contrast all three systems

Reference no: EM131223981

Question 1:

An important service provided by any system is the ability to run a process on a predetermined schedule without human intervention. The "automation" of tasks can reduce the workload of the system administrator significantly. Unfortunately Linux currently offers not one service but potentially three-cron, anacron, and systemd timer units.

In about a page compare and contrast all three systems. Illustrate your discussion by using the system files /etc/anacron and /etc/crontab and by constructing equivalent systemd service and timer files.

Question 2:

The web administrator of your organisation needs to login remotely to the machine that is running the organisation's public web site. You tell her that the only way to login is via The Secure Shell-which she knows nothing about! Assuming she is logging in via a Linux boxwrite a help document for her containing the following-

a. A short introduction to SSH, explaining why it is the preferred way of logging into a remote machine-this explanation will need to discuss symmetric and asymmetric key encryption.

Question 3:

A user comes to you requesting that you create and implement a backup policy for his desktop machine. What he wants, is to be able to place a blank DVD in his Single-Sided DVD-burner at the end of the working day on a Friday and have all the files he has been working on for the week backed up automatically that evening to the DVD!

Verified Expert

Linux has three main timer units namely Cron, Anacron and Systemd. There is a distinct set of features that all of these time schedulers in Linux are built with. However, it is a fact that all of these three are merely timers and the application of their usage is quite different from each other. Cron is a time based task scheduler program in Linux. Cron is specifically used in the environment where the system has to be scheduled to very specific times, generally precisely to the minutes and seconds. Tasks can run on particular dates, or repeat at periods as little as consistently. Cron likewi

Reference no: EM131223981

Questions Cloud

What is the value of ending inventory : a. Assuming that Convex sold 20,000 units during the last six months of the year at $14 each, what would gross profit be? b. What is the value of ending inventory?

Describe a time you experienced a personality conflict : Describe a time you experienced a personality conflict, and discuss how you addressed it.

Describe the services within the health care industry : Describe the services within the health care industry. The U.S. health care system is a complex delivery system comprised of many organizations that each have a role in ensuring quality of care.

What should be the future of the us space program : What should be the future of the US Space Program? Should the US Space Program become privatized or be supported by tax dollars? Should it be discontinued completely and the money spent for programs here on Earth?

Compare and contrast all three systems : In about a page compare and contrast all three systems. Illustrate your discussion by using the system files /etc/anacron and /etc/crontab and by constructing equivalent systemd service and timer files.

How much did quantum technology : a. How much did Quantum Technology earn during 20X2? b. What would earnings per share be if 42,400 shares of common stock were outstanding? (Round your answer to 2 decimal places.)

How technology impacts materials handling and packaging : Draw comparisons between two of your chosen products and identify what aspects of their packaging would assist or hinder the materials handling function for the logistics provider. If these were products you were manufacturing, what packaging chan..

What is its return on stockholders equity : What is its return on stockholders' equity? (Do not round intermediate calculations. Input your answer as a percent rounded to 2 decimal places.)

Calculate the firm debt-to-equity ratio : What are the company's net income and net sales? Calculate the firm's debt-to-equity ratio.

User Account

All Pages