Week 3 Submitted by: Sandeep Kaur (100574107) QUESTION 2: What are the security services of windows network security? ANSWER: The services which are working together to maintain Window network security are: • Active Directory: These directory is a container of information about objects, people, places, and things. A directory gives users a logical view of these objects, but in a form that makes the information searchable, useful and reusable. • Kerberos: The Kerberos is a protocol which defines how clients interact with a network authentication service. It uses tickets as a proof of identity. This a assumption of Kerberos protocol that transactions is taking place in open network between clients and servers, where most of the clients and servers …show more content…
• Group Policy: Group policy controls the working environment of user accounts and computer accounts. Group policies are specification for configuration of system tools. QUESTION 4: What are user configuration policies? ANSWER: User Configuration can be used in Group Policy to set policies that apply to users, regardless of which computer they log on to. User configuration contains various sub items for: Software Settings Windows Settings Administrative Templates QUESTION 6: What are Kerberos Tickets? ANSWER: As it is already defined in the first answer that Kerberos allows a client to exchange private information with a server across an otherwise open network and with special ticket management software the unique key is assigned to each person that authenticates to the network using his or her PennKey and password, that unique key is known as ticket. There are two types of ticket: Ticket-granting ticket (TGT) Service ticket. TGT last up to 10 hours and on other hand Service ticket last varies according to host and server. HAND ON PROJECT Instead of Root kit reveler as mentioned on book I am using GMER. It is an application that detects and removes
5. The value of the Transaction ID is 0xe6746a7d. The second ID is 0xe4eff25f. A Transaction ID is used so that the DHCP server can differentiate client requests whilst in the the request process.
Kerberos provides a secure authentication scheme. Authentication is needed to restrict the intruders and malicious users. The major security issues discussed are privacy of the data, integrity of data and authentication mechanism which is not there in Hadoop. Hadoop supports Kerberos for authentication and many security features can be configured with the Hadoop to restrict the accessibility of the data. The data can be associated with the user names or group names in which data can be accessed. Kerberos is a conventional authentication system, improved authentication systems can be used which are more secure and efficient than
amount of time depending on the severity and the frequency of the instances. If not
Auditing is important to Systems Administrators where they can watch accounts’ access and login activities on each computer in the infrastructure. In order to do so, Systems Administrators can do so using the Group Policy Management Console (GPMC). In order to do so, Systems Administrators can enable the auditing option of what they wish to audit. For example, the login auditing option can be enabled in the Group Policy Management Editor (GPME). Moreover, Systems Administrators have many auditable items that they can setup and benefit from in the Active Directory world.
In view of emergence in cloud computing and cloud based identity management providers, the need for implementing SAML protocol is imperative. In addition, with the proliferation of SaaS (Software as a Service), and other web based applications, identity management has become challenging for various enterprises. Handling so many usernames and passwords for your intranet, cloud, webmail, HR system, and other resources is nothing but bothersome especially when your workforce is huge. This is where SAML is desperately needed. Many hosted services providers support SAML for authentication including Google Apps, Salesforce.com, Zendesk and Zoho. Thousands of large enterprises have adopted it as their standard protocol for their communicating identities across their network environments.
A Policy plays an important role in any organization. A Policy outlines a set of rules and procedures that all employees must adhere to, information security policies are important because they help limit the risks associated with employee’s use of information properties.
Research My first research experience took place from the Fall 2012 – Summer 2013 in a neurobiology laboratory (Dr. Daniel Plas) focused on Parkinson’s Disease. In this project an undergrad student and I were tasked with optimizing a cellular medium for neural growth of the model organism Lymnaea stagnalis. This was comprised of following established protocols and altering certain variables within the formulas (differing concentrations of ions, pH, et al.) to observe growth pattern differences in vitro.
Kerberos was conceived as a secure network authentication technology at Massachusetts Institute of Technology (MIT), where it continues to evolve. Using encryption as a seal, Kerberos credentials, or tickets, vouch for authenticated users. Because every node on the network exclusively trusts the Kerberos server, users' credentials are valid throughout the network. This way, they theoretically have to log in only once. In addition, Kerberos can provide support for real-time encryption of network communications. This is like keeping the doors in your city locked, but giving authorized citizens a key to every door. (Salowey)
Today’s enterprise networks are more and more likely to be Windows based or at the very least have large Windows components coexisting with other network operating systems (NOS) such as the many UNIX/Linux variants, or Novell’s NetWare. Since the time that Microsoft began offering Windows NT Server version 3.51 through today’s Windows 2003 Server and its upcoming successor, codenamed “Longhorn”, the job of centralized network authentication and administration has been built around Microsoft’s domain network architecture.
Go to Start Menu > All Programs > Administrative Tools, and click “Group Policy Management” to display the following window.
One issue which could plague Internet Key Exchange is the clogging attack. The clogging attack occurs when an attacker uses forged IP addresses to initiate many (thousands) connections which stay in the open state for a period of time, which ties up the target system’s resources. To combat the clogging attack the Cookie Exchange was adopted from the Photuris
the client and server are able to correspond with one another though only if authentication has been established. Both the client and server can then come to a decision on a particular encryption method before any data can be transmitt...
ISO/IEC 9798, Information Technology - Security Tech- niques - Entity Authentication. Part 1, General. Part 2, Mechanisms Using Encipherment Algorithms. Part 3, Mechanisms Using a Public-Key Algorithm, Int’l Orga- nization for Standarization, Geneva, 1997.
Manage users: admin can manage the users by adding, editing, disabling users and also privileges of users are maintained.
The group wants the individual to conform to their ideals and normative values and actions (Smelser, 1963). The group influence stresses conformity, or the adhering to the standards of the group, as a way to create a structural level of dominance and submission in a way. The group wants cohesiveness so that everyone in the group is following the same set of standards and will all act the same way (Smelser, 1963). Group influence can at times be beneficial, there are times when the individual should participate in actions that have been influenced by the group. These actions could include such things as: being polite, having table manners, using a proper greeting, doing homework, not being disrespectful in places of worship, and so forth. Group influence can