Today S Attacks Defenses Beginning Chapter Illustrated Security Researcher Could Manipulat Q43886320
Today’s Attacks and Defenses at the beginning of this chapterillustrated how a security researcher could manipulate a help desksupport technician into compromising security. If you were tocreate your own social engineering attack, what would it be? Usingyour place of employment or school, first determine exactly whatyour goal would be in the attack, and then craft a detaileddescription of how you would carry out the attack using only socialengineering to achieve your goal. You might want to search theInternet for examples of previously successful attacks that usedsocial engineering. Why do you think your attack would besuccessful? Who would be involved? What would be the problems inachieving your goal? Why?
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Answer to Today’s Attacks and Defenses at the beginning of this chapter illustrated how a security researcher could manipulate a…
Today Use Euler S Method Numerically Solve Ordinary Differential Equation Given Initial Va Q43859817
Today you will use Euler’s method to numerically solve an ordinary differential equation given an initial value. The method is also covered in section 4.3 of the lecture workbook. To use Euler’s method to numerically solve the initial value problem: = f(t,y) with initial condition y(to) = you we do the following: 1. Start at the point (to, yo). 2. Calculate the slope at the current point,f(toyo). 3. Move along the slope field to calculate the next point (t1, y) as t1 = to + At, y = yg + Atto, y) = y + Atf(to,yo). dy 4. Continue calculating more points with ti+1 = t; + At, Yi+1 = yg +Att,y;) = y; + Atf(t;,y;) until you reach the final t value at which you want to know the approximate value of your solution y. Exercise 2 Consider the Initial Value Problem (IVP): dy=f(t,y), yO) = 1 where f(t, y) = 1 –4 – 2y An example Matlab code that uses Euler’s method to numerically find a solution to this IVP is provided in Code Snippet 1. Show/hide Code Snippet 1 Answer the following questions about Code Snippet 1. The initial condition is y(0) = 1. Explain why we don’t put t(0) = 0 and Y(0) = 1: Enter explanation What was the implemented step-size, Al? Enter value Without running the code Snippet in Matlab see if you can determine what t(11) will be: t(11) = Enter value Show/hide Code Snippet 1 NPOL COUW t = zeros (1,10+1); y = zeros (1,10+1); t(1) = 0; Y(1) = 1; dt = 0.2; for k = 1:10 t(k+1) = t(k)+dt; y(k+1) = y(k)+dt*(1-exp(-4*t(k))-2*y()); end plot(t,y,’ro-‘) t(end) y (end) What was the implemented step-size, Ar? Enter value Without running the code Snippet in Matlab see if you can determine what t(11) will be: t(11) = Enter value Describe the meaning of y(11): Enter answer Now create and run an M-file containing the code snippet. From the plot, how accurate do you think the answer for y(11) is? How could you make it more accurate? Enter answer Show transcribed image text Today you will use Euler’s method to numerically solve an ordinary differential equation given an initial value. The method is also covered in section 4.3 of the lecture workbook. To use Euler’s method to numerically solve the initial value problem: = f(t,y) with initial condition y(to) = you we do the following: 1. Start at the point (to, yo). 2. Calculate the slope at the current point,f(toyo). 3. Move along the slope field to calculate the next point (t1, y) as t1 = to + At, y = yg + Atto, y) = y + Atf(to,yo). dy 4. Continue calculating more points with ti+1 = t; + At, Yi+1 = yg +Att,y;) = y; + Atf(t;,y;) until you reach the final t value at which you want to know the approximate value of your solution y.
Exercise 2 Consider the Initial Value Problem (IVP): dy=f(t,y), yO) = 1 where f(t, y) = 1 –4 – 2y An example Matlab code that uses Euler’s method to numerically find a solution to this IVP is provided in Code Snippet 1. Show/hide Code Snippet 1 Answer the following questions about Code Snippet 1. The initial condition is y(0) = 1. Explain why we don’t put t(0) = 0 and Y(0) = 1: Enter explanation What was the implemented step-size, Al? Enter value Without running the code Snippet in Matlab see if you can determine what t(11) will be: t(11) = Enter value
Show/hide Code Snippet 1 NPOL COUW t = zeros (1,10+1); y = zeros (1,10+1); t(1) = 0; Y(1) = 1; dt = 0.2; for k = 1:10 t(k+1) = t(k)+dt; y(k+1) = y(k)+dt*(1-exp(-4*t(k))-2*y()); end plot(t,y,’ro-‘) t(end) y (end)
What was the implemented step-size, Ar? Enter value Without running the code Snippet in Matlab see if you can determine what t(11) will be: t(11) = Enter value Describe the meaning of y(11): Enter answer Now create and run an M-file containing the code snippet. From the plot, how accurate do you think the answer for y(11) is? How could you make it more accurate? Enter answer
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Answer to Today you will use Euler’s method to numerically solve an ordinary differential equation given an initial value. The met…
Tools Techniques Used Develop Custom Built Websites Explain Advantages Q43830636
What are the Tools and Techniques Used to Develop Custom-builtWebsites and Explain Each of them with their Advantages
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Answer to What are the Tools and Techniques Used to Develop Custom-built Websites and Explain Each of them with their Advantages…
Topic 10 Homework Please Make Sure Watch Podcast Ve Created Attempt Also Certainly Possib Q43834948
Topic 10 Homework Please make sure that you watch the podcast I’ve created before you attempt this. Also while it is certainly possible to finish this lab quickly, you may run into problems that will take time to troubleshoot. Please don’t wait to the last minute to start. This must be completed before you can begin the DNS lab next week Before you start this lob, please date any current ops that you have. If you wish you may Cody information out of them before deletion For our ab this week, we’re going to create another vip that will now use to use 2 VM’s in a single App to communicate with each other. So, following the procedures you’ve used previously.create a new using the 340 – template 3 Name the w o rst in last names Do would be named senesy3. Do not change any of the Cloud settings when creating your VAD Since there are 2 ‘s in the won were going to startit a little differently – at least in the server VM needs to be started first. Go to the “My Cloud’ tab and Highlight s on the left pane. Find your serve App and hight it, then click start. You can now login to your server VM normally. The login information for the new VMs is the same as your previous A . Once you ve logged into the server d e you to configure the DHCP service for your system. Please follow the instructions that I’ve posted for you. The podcast will help you get started as well, but the written instructions override anything that conflicts with the information in the podcast When you finish configuring the DHCP service and it is running on your server, you can go back to the client VM and startit, Login normally and run the ifconfig the command to confirm that you’ve got an IP address from the advertised pool config ethi For your first screenshot take a picture of the hond service starting on your server instance after you type service dhod restart. Your second screenshot should show the results of running the command on your client instance Upload both screenshots before the due date for credit Next week lab will build on the lab we did this week, so please make sure that you’re able to get DHCPD up and running Submission status Show transcribed image text Topic 10 Homework Please make sure that you watch the podcast I’ve created before you attempt this. Also while it is certainly possible to finish this lab quickly, you may run into problems that will take time to troubleshoot. Please don’t wait to the last minute to start. This must be completed before you can begin the DNS lab next week Before you start this lob, please date any current ops that you have. If you wish you may Cody information out of them before deletion For our ab this week, we’re going to create another vip that will now use to use 2 VM’s in a single App to communicate with each other. So, following the procedures you’ve used previously.create a new using the 340 – template 3 Name the w o rst in last names Do would be named senesy3. Do not change any of the Cloud settings when creating your VAD Since there are 2 ‘s in the won were going to startit a little differently – at least in the server VM needs to be started first. Go to the “My Cloud’ tab and Highlight s on the left pane. Find your serve App and hight it, then click start. You can now login to your server VM normally. The login information for the new VMs is the same as your previous A . Once you ve logged into the server d e you to configure the DHCP service for your system. Please follow the instructions that I’ve posted for you. The podcast will help you get started as well, but the written instructions override anything that conflicts with the information in the podcast When you finish configuring the DHCP service and it is running on your server, you can go back to the client VM and startit, Login normally and run the ifconfig the command to confirm that you’ve got an IP address from the advertised pool config ethi For your first screenshot take a picture of the hond service starting on your server instance after you type service dhod restart. Your second screenshot should show the results of running the command on your client instance Upload both screenshots before the due date for credit Next week lab will build on the lab we did this week, so please make sure that you’re able to get DHCPD up and running Submission status
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Answer to Topic 10 Homework Please make sure that you watch the podcast I’ve created before you attempt this. Also while it is cer…
Topic 10 Homework Please Make Sure Watch Podcast Ve Created Attempt Also Whle Certainly P Q43834952
Topic 10 Homework Please make sure that you watch the podcast ve created before you attempt this. Also, whle it is certainly possible to finish this lab quickly, you may run into problems that will take time to troubleshoot. Please don’t wait t the last minute to start. This lab must be completed before you can begin the DNS lab next week Before you start this lab, please delete any current vpps that you have. f you wish, you may copy any information out of them before deletion. For our lab this week, we’re going to create another vApp that will allow use to use 2 VMs in a single wpp to communicate with each other. So, following the procedures you’ve used previously, create a new wApp using the T 340 – template 3. Name the wApp first initial last name3, so my vApp would be named ssenesya. Do not change any of the vCloud settings when creating your vApp. Since there are 2 VMs in the wApp, we’re going to start ita little differently – at least initially. The server VM needs to be started first. Go to the “My Cloud” tab and highlight “VMs” on the left pane. Find your serven App and highlight it, then click start. You can now login to your server VM normally. The login information for the new VMs is the same as your previous vApp. Once you’ve logged into the server, rd lke you to configure the DHCP service for your system. Please follow the instructions that ve posted for you. The podcast will help you get started as well, but the written instructions over-ride anything that conficts with the information in the podcast. When you finish configuring the DHCP service and it is running on your server, you can go back to the cient VM and start it. Login normaly and run the ifconfig etht command to confirm that you’ve got an IP address from the advertised pool. For your ferst screenshot, take a picture of the dhcpd service starting on your server instance after you type service dhcpd restart. Your second screenshot should show the results of running the Mfconfig etht command on your client instance. Upload both screenshots before the due date for credit Next week’s lab will build on the lab we did this week, so please make sure that you’re able to get DHCPD up and running Submission status Show transcribed image text Topic 10 Homework Please make sure that you watch the podcast ve created before you attempt this. Also, whle it is certainly possible to finish this lab quickly, you may run into problems that will take time to troubleshoot. Please don’t wait t the last minute to start. This lab must be completed before you can begin the DNS lab next week Before you start this lab, please delete any current vpps that you have. f you wish, you may copy any information out of them before deletion. For our lab this week, we’re going to create another vApp that will allow use to use 2 VMs in a single wpp to communicate with each other. So, following the procedures you’ve used previously, create a new wApp using the T 340 – template 3. Name the wApp first initial last name3, so my vApp would be named ssenesya. Do not change any of the vCloud settings when creating your vApp. Since there are 2 VMs in the wApp, we’re going to start ita little differently – at least initially. The server VM needs to be started first. Go to the “My Cloud” tab and highlight “VMs” on the left pane. Find your serven App and highlight it, then click start. You can now login to your server VM normally. The login information for the new VMs is the same as your previous vApp. Once you’ve logged into the server, rd lke you to configure the DHCP service for your system. Please follow the instructions that ve posted for you. The podcast will help you get started as well, but the written instructions over-ride anything that conficts with the information in the podcast. When you finish configuring the DHCP service and it is running on your server, you can go back to the cient VM and start it. Login normaly and run the ifconfig etht command to confirm that you’ve got an IP address from the advertised pool. For your ferst screenshot, take a picture of the dhcpd service starting on your server instance after you type service dhcpd restart. Your second screenshot should show the results of running the Mfconfig etht command on your client instance. Upload both screenshots before the due date for credit Next week’s lab will build on the lab we did this week, so please make sure that you’re able to get DHCPD up and running Submission status
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Answer to Topic 10 Homework Please make sure that you watch the podcast ve created before you attempt this. Also, whle it is certa…
Topic 11 Homework Last Topics Lab Dhcp Must Completed Prior Lab Otherwise Client Ip Addres Q43831877
Topic 11 Homework Last topics lab (DHCP) must be completed prior to this lab, otherwise your client will not have an IP address, though you may do complete the DHCP Lab, please contact me and I’ll walk you through your problems. the steps up to testing DNS on the client without it. If you were not able to For your homework this week, I’d like you to install and configure the DNS framed) service on your server in the client/server instance that you created last class. Please follow the written instructions that I’ve posted for you, as well as watch the lab podcast which explains the configuration process. Use the settings that I’ve posted in the instructions For your screenshot, take a picture of the output of the two soup commands performed on the client. Upload your screenshot before the due date for credit Don’t wait to the last minute to start as there are plenty of opportunities for problems This will be the final homework assignment Due to the of the semester, there is no late option on this assignment Submission status Show transcribed image text Topic 11 Homework Last topics lab (DHCP) must be completed prior to this lab, otherwise your client will not have an IP address, though you may do complete the DHCP Lab, please contact me and I’ll walk you through your problems. the steps up to testing DNS on the client without it. If you were not able to For your homework this week, I’d like you to install and configure the DNS framed) service on your server in the client/server instance that you created last class. Please follow the written instructions that I’ve posted for you, as well as watch the lab podcast which explains the configuration process. Use the settings that I’ve posted in the instructions For your screenshot, take a picture of the output of the two soup commands performed on the client. Upload your screenshot before the due date for credit Don’t wait to the last minute to start as there are plenty of opportunities for problems This will be the final homework assignment Due to the of the semester, there is no late option on this assignment Submission status
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Answer to Topic 11 Homework Last topics lab (DHCP) must be completed prior to this lab, otherwise your client will not have an IP …
Topic 3 Homework Software Process Management Lab Week Ll Install Software System Well Star Q43779654
Topic 3 Homework Software and Process Management Lab This week, we’ll install software on our system as well as start and stop some processes in our lab. When submitting the requested screen shots, make sure that you take a complete picture of the entire Firefox frame in your hosts that shows the title of the vCloud instance. Upload only the requested screen shots in either jpg or png format. Other formats (like MS Word), or zipped files will not receive credit. 1. Install the zsh package using the rpm command. When finished, run the rpm -qzsh’ command as you did in the lab. Upload a screenshot that shows the results of the command. 2. Start 3 instances of the ‘bash’ process in the background. In a second terminal, using Linux commands, determine the PID of the 3’bash’ command instances Upload a screenshot that shows the command that you used to find the ‘bash’ processes and it’s result 3. Kill the 3 ‘bash’ processes started in the previous step from the second terminal (don’t kill your current shell or you’ll need to start step 2 over). Upload a screenshot that shows the command that you used to kill the bas processes Show transcribed image text Topic 3 Homework Software and Process Management Lab This week, we’ll install software on our system as well as start and stop some processes in our lab. When submitting the requested screen shots, make sure that you take a complete picture of the entire Firefox frame in your hosts that shows the title of the vCloud instance. Upload only the requested screen shots in either jpg or png format. Other formats (like MS Word), or zipped files will not receive credit. 1. Install the zsh package using the rpm command. When finished, run the rpm -qzsh’ command as you did in the lab. Upload a screenshot that shows the results of the command. 2. Start 3 instances of the ‘bash’ process in the background. In a second terminal, using Linux commands, determine the PID of the 3’bash’ command instances Upload a screenshot that shows the command that you used to find the ‘bash’ processes and it’s result 3. Kill the 3 ‘bash’ processes started in the previous step from the second terminal (don’t kill your current shell or you’ll need to start step 2 over). Upload a screenshot that shows the command that you used to kill the bas processes
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Answer to Topic 3 Homework Software and Process Management Lab This week, we’ll install software on our system as well as start an…
Topic 6 Homework Centos 66 Template 2 First Part Homework Assignment Boot New Instance Cre Q43806235
Topic 6 Homework CentOS 6.6 (Template 2) For the first part of this homework assignment, boot the new instance that you just created for the lab. I’d like you to edit the /etc/inittab file (as I showed in the podcast and in the lab instructions) to change your run level to 3. Reboot your instance. Once you’ve logged in without a GUI, type the command ‘cat /etc/inittab’. In your host OS, take a screen shot of the output that shows that your instance is set to boot to level 3 by default. Upload your screen shot to Moodle. When you’ve finished uploading, you may shutdown and delete your CentOS 6.6 instance. CentOS 7 (Template 1) For this part of the assignment, boot your CentOS 7 instance. Using the instructions that I gave you in the podcast, set your target boot environment to multi-user target. Reboot your system to the command line and login. Run the systemctl get-default so that it shows that you are using the multi-user target (you must do this from the command line, not a GUI). Take a screen shot that shows your target and upload it to Moodle. Change your target to graphical target. Reboot your instance and login. Take a screen shot of the output of the get-default command again that shows the default is now graphical and the GUI is running. Upload your screen shot to Moodle. Show transcribed image text Topic 6 Homework CentOS 6.6 (Template 2) For the first part of this homework assignment, boot the new instance that you just created for the lab. I’d like you to edit the /etc/inittab file (as I showed in the podcast and in the lab instructions) to change your run level to 3. Reboot your instance. Once you’ve logged in without a GUI, type the command ‘cat /etc/inittab’. In your host OS, take a screen shot of the output that shows that your instance is set to boot to level 3 by default. Upload your screen shot to Moodle. When you’ve finished uploading, you may shutdown and delete your CentOS 6.6 instance. CentOS 7 (Template 1) For this part of the assignment, boot your CentOS 7 instance. Using the instructions that I gave you in the podcast, set your target boot environment to multi-user target. Reboot your system to the command line and login. Run the systemctl get-default so that it shows that you are using the multi-user target (you must do this from the command line, not a GUI). Take a screen shot that shows your target and upload it to Moodle. Change your target to graphical target. Reboot your instance and login. Take a screen shot of the output of the get-default command again that shows the default is now graphical and the GUI is running. Upload your screen shot to Moodle.
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Answer to Topic 6 Homework CentOS 6.6 (Template 2) For the first part of this homework assignment, boot the new instance that you …
Topic 9 Homework Watch Podcast Lab Attempt Homework Week Re Going Use Knowledge Process Au Q43829617
Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron jobles that solve specific problems. You should create test all of these scenarios from your student account. Any files that are written by the process should be written to your student home directory. The scenarios that you’ll need to create are listed below 1. The system admi-staff would like you to create a cron job that runs only on weekdays (Monday – Friday at lam, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes.txt 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that write the output of the ‘df -h’ command to a local titled metricot The job should only run on Wednesday at Bam. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the leaving the data that’s already been written. In all cases, you should load the appropriate cron job file into the contab daemon, then use the crontab-‘ command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only. Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron job files that solve specific problems. You should create test all of these scenarios from your student account. Any files that are written by the process should be written to your student home directory: The scenarios that you’ll need to create are listed below 1. The system admin staff would like you to create a cron job that runs only on weekdays (Monday – Fridays at 1am, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes.txt 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that writes the output of the ‘dfhe’ command to a local file titled metrict. The job should only run on Wednesday at 8am. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the file saving the data that’s already been written In all cases, you should load the appropriate cron job file into the crontab daemon, then use the crontabi’ command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only Show transcribed image text Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron jobles that solve specific problems. You should create test all of these scenarios from your student account. Any files that are written by the process should be written to your student home directory. The scenarios that you’ll need to create are listed below 1. The system admi-staff would like you to create a cron job that runs only on weekdays (Monday – Friday at lam, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes.txt 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that write the output of the ‘df -h’ command to a local titled metricot The job should only run on Wednesday at Bam. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the leaving the data that’s already been written. In all cases, you should load the appropriate cron job file into the contab daemon, then use the crontab-‘ command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only.
Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron job files that solve specific problems. You should create test all of these scenarios from your student account. Any files that are written by the process should be written to your student home directory: The scenarios that you’ll need to create are listed below 1. The system admin staff would like you to create a cron job that runs only on weekdays (Monday – Fridays at 1am, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes.txt 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that writes the output of the ‘dfhe’ command to a local file titled metrict. The job should only run on Wednesday at 8am. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the file saving the data that’s already been written In all cases, you should load the appropriate cron job file into the crontab daemon, then use the crontabi’ command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only
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Answer to Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our…
Topic 9 Homework Watch Podcast Lab Attempt Homework Week Re Going Use Knowledge Process Au Q43831866
Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron job files that solve specific problems. You should createst all of these scenarios from your student account Any files that we written by the process should be written to your student home directory. The scenarios that you’ll need to create are isted below. 1. The system admin staff would like you to create a cron job that runs only on weekdays (Monday – Friday) at tam, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes, but 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that write the output of the dry command to a local file titled metric.bt. The job should only run on Wednesday at Bam. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the file saving the data that’s already been written In al cases, you should load the appropriate cron job file into the contab demon, then use the contab-command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only Submission status Show transcribed image text Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our knowledge of process automation to create a number of cron job files that solve specific problems. You should createst all of these scenarios from your student account Any files that we written by the process should be written to your student home directory. The scenarios that you’ll need to create are isted below. 1. The system admin staff would like you to create a cron job that runs only on weekdays (Monday – Friday) at tam, continuously throughout the year. The job should write a list of all processes that are currently running on the host to a file called processes, but 2. The Helpdesk would like to keep metrics on disk usage for a short period of time. Write a cron job that write the output of the dry command to a local file titled metric.bt. The job should only run on Wednesday at Bam. Make sure that you don’t OVERWRITE the data that’s already in the file. You’ll need to structure your command so that it APPENDS to the file saving the data that’s already been written In al cases, you should load the appropriate cron job file into the contab demon, then use the contab-command to display the contents of the cron buffer. Take a screen shot of this output and upload for each individual problem. Do not upload more than 2 screen shots. JPG or PNG files only Submission status
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Answer to Topic 9 Homework Watch the podcast and do the lab before you attempt this homework For this week, we’re going to use our…