Please, see attached file for instructions. All job should be done on Linux server ubuntu. I indicated page number based on words. It will probably more pages as most of it will be filled with screenshots1) You are required to configure and test a DNS server (Ubuntu Server 16.04.3 LTS). Configure a DNS server with both forward and reverse lookup. You should configure a domain name zone of itc333.edu, and a reverse name mapping zone of 192.168.15.0/24. Configure A and PTR records for: host1 – 192.168.15.10, host2 – 192.168.15.11 and host3 – 192.168.15.12. Configure a CNAME of www for host1, and a CNAME of dc1 for host2. Test the operation of your DNS server using an external client running DNS queries. [10 marks]2) Create a user “assgn2′ and in their home directory create the files with the following permissions [5 marks].• A file called “test.txt”, with contents “This is a test file”, with read and write permissions for owner, group and other, but no execute permissions.• A file called “script1” that runs a simple script of your choosing, with read and execute permissions for group and other, and full read, write and execute permissions for the owner.• A hidden file called “.test_config”, owned by root with contents “Test config file”, that has root read, write and execute permissions only, no other permissions set.• A symbolic link with an absolute path to a system log file of your choosing.• A directory called “test_dir” with the owner having full permissions to create, rename or delete files in the directory, list files and enter the directory. Group and other having permissions to only list files and enter the directory and access files within it. Submit a learning diary for this activity in which you should include:• Your DNS configuration, including copies of your underlying DNS server configuration files;• Screenshots from your client device demonstrating the operation of the DNS server;• What you did;• Describe the problems you encountered. Were you able to resolve these problems? (Y/N);• How much time you spent on each part of the exercise. RationaleThis assessment item is design to test your• assess your progress towards meeting subject learning outcomes 1, 2 and 3;• assist you to develop your learning of the priciples covered in topics 1-6 of the subject;• knowledge of the details of network service technologies;• ability to apply problem-solving techniques;• ability to find credible information sources and apply them;• ability to write clearly and concisely; and• ability to correctly reference information sources.Marking criteriaPart 1.This part is a series of multiple choice questions. Each correct answer will score 1 mark. Marks will not be deducted for incorrect answers.Most quizzes will involve multiple choice or true/false type questions, although quizzes may include other contents. Marks will be given based on the correctness of the answers. The Test Centre will be marking automatically and you will receive marks according to the following criteria:HD – At least 85% answers were correctDI – At least 75% answers were correctCR – At least 65% answers were correctPS – At least 50% answers were correctPart 2.Question Criteria HD DI CR PS FLPart 2 Q1. DNS Configuration Ability to learn and use systems administration techniquesApplication of technical knowledgeReferencing Demonstrated working DNS implementation.Application of techniques drawn from synthesis of two or more sources, presents a summary of the information and explains the facts in a logical manner with outstanding explanation and presentation. Demonstrated working DNS implementation.Application of techniques drawn from synthesis of two or more sources, and draws appropriateconclusions based on understanding, with all factors identified and described. Demonstrated working DNS implementation.Application of techniques drawn from two or more sources, and draws conclusions based on understanding, with major factors identified and described. Demonstrated working DNS implementation with minor errors or omissions.Application of techniques and conclusion drawn from facts, with major factors identified and described. Major errors or omissions. Limited detail and understanding demonstratedPart 2 Q2. File and Directory Permissions Ability to learn and use systems administration techniquesApplication of technical knowledgeReferencing Application of techniques drawn from synthesis of two or more sources. Configuration is accurate and execution is detailed with precise and neatly presented information. Application of techniques drawn from synthesis of two or more sources. Configuration is accurate and execution is detailed. Application of techniques drawn from sources. Configuration is accurate and execution is detailed. Configuration is accurate and execution is detailed with minor errors or omissions. Major errors or omissions. Limited detail and understanding demonstratedOverall Assignment Referencing Use of citations and quotesReferences Broad range of references strategically used in support.Clear acknowledge other people’s ideas.Always conforms to stipulated style References strategically used in support.Clear acknowledge of other people’s ideas.Mostly conforms to stipulated style References used in support.Acknowledge other people’s ideas.Mostly conforms to stipulated style Over use of quotations.Sources not well integrated within answers.Minor errors in style Not always proper acknowledge sourcesText or quotations not clearly identified.Major errors in style.Inconsistent use of stylesPresentationYou should submit your assessment as a single word document which should contain all components of your assignment. Use screenshots to compliment your written answers and to provide evidence and detail of the work you have done.