Essay about Security Enhanced Linux (Selinux), Chroot Jail, and Iptables

Assignment 2: System Security As we evolve through time the technology evolves with us. With our accomplishment in technology we reached beyond our imagination, some things which our ancestors would only dream on having. But while the technology can be used for good deeds some want to take advantage of it and gain personal profits. So, countermeasures were created for defending against them. The system security is a defence mechanism projection against illegal access in a User’s/Owner’s computer or other technology gadgets that contain personal information without the Owner being aware. The system security covers Networking Protection which is an accidental downloading of software codes like computer viruses, spam, worms, Trojan horses, logic bombs, spyware, and adware, that create an annoyance, steals, harms or alters data or cripple system capacities. In the meantime, it also covers Physical Protection preventing others to steal or access your personal gadgets. Programs for protection have been created for a long time and are still being created for the cause of fighting the threatening programs. The battle of anti-threatening

Security Consideration One of the important part of system administration should be secure, so it is very important to understand which factors can affect security inside and outside our system. There are many key decisions that have to be made, for example, what server operating system should a system use to which

Introduction : A computer is secure if you can depend on it and its software to behave as you expect I this assignment I will writer about how Linux provides security to you information. The major technical areas of computer security are usually represented by CIA confidentiality, integrity, and authentication or availability. It means that information cannot access by unauthorized people.

Question 1 – Goal/Introduction The goal of this lab was to set up a windows DNS server on the same network as the other Linux servers. This lab focused on using the windows DNS server to be the master DNS server with the Linux DNS server that was built in

Red Hat Package Manager (RPM) A. Readily installed, updated, categorized and removed. B. Linux service update Linux distributions available RPM form. 2. Anti-Virus Support A. Linux kernels tend to have less malware than Windows bases systems. 1) Rootkit Hunter (rkhunter) application for rootkit, local exploits, malware and backdoors scanning. 2) Tripwire application for managing incident detection, security policy enforcement, reduce the attack surface and automate regulatory compliance.

IS-418: Security Strategies in Linux Platforms and Applications * Project: Linux – Based Web Application Infrastructure * Project: Logistics * Project Part 3: Executive Summary * Project Part 3: Tasks 1 * Project Part 3: Tasks 2 * Project Part 3: Tasks 3 IS-418: Security Strategies in Linux Platforms and Applications * Project: Linux – Based Web Application Infrastructure * Project: Logistics * Project Part 3: Executive Summary * Project Part 3: Tasks 1 * Project Part 3: Tasks 2 * Project Part 3: Tasks 3 Task 1: Use a Kernel Scenario: First World Bank Savings and Loan's Linux-based infrastructure requires an in-house custom kernel or a kernel provided by a vendor

The Different Flavors of Linux CIS 155: Operating Systems 6/7/2012 Depending on your personal preference and need, there are a variety of operating systems available to users today. Whether it’s MAC OS, UNIX, Windows, etc they each have their own aspects and appeal that draw users in. The spotlight however, for

Project IS3230 Access Control Proposal Name: Rafiq Sabaoui Access control: type of access control by which the operating system constrains the ability of a subject or initiator to access or generally perform some sort of operation on an object or target. In practice, a subject is usually a process or thread; objects are constructs such as files, directories, TCP/UDP ports, shared memory segments, IO devices etc. Subjects and objects each have a set of security attributes. Whenever a subject attempts to access an object, an authorization rule enforced by the operating system kernel examines these security attributes and decides whether the access can take place. Any operation by any subject on any object will be tested against the set of

Lab 2 – CSEC630 1. When running Snort IDS why might there be no alerts? When using Snort IDS, there are several modes that if configured properly, will generate alerts. Alerts are set by the user within the command prompt when initiating a rule set. There are five alerting options

As such, he introduces a technique of identifying a spectrum of potential vulnerabilities and suggests procedures to deal with them. Systems Specification and High Order Language Implementation are categorized as items of high risk to attacks. Security Policy and Machine Language Implementation are classified as items of moderate risk of being vulnerable to attacks. Circuits Electronics and Device Physics are of low and very low risks respectively. He also discusses potential threats such as deceiving operating systems to grant access to file or data to unauthorized users through direct (overt) and indirect (convert) channels. Walker also says that lack of precise definition of trusted operating systems and the higher cost of building them are the significant drawbacks faced by the vendors. Vendors are concerned that if they build trusted operating systems, they might not be accepted by their customers. The only solution suggested by the author was to have someone or a company builds it, shares the technology used, and convinces the general public on the significance of it. Once it becomes accepted, then there will be a widespread use of trusted computer operating systems.

First World Bank Savings and Loan Mission: First World Bank Savings and Loan strives to become the leader in the competitive financial institution market by applying new and updated security policies to their advanced Linux based server applications. Company Background: First World Bank Savings and Loan is a financial institution in the United

Computers have become part of our daily complex lives; we depend heavily on computers to help break our complicated lives down. Most people now prefer to do things the digital way and so does companies. Most of trading (buying and selling) is now online which requires computers. In order to satisfy our hunger for digital living, there is a need for technology called the operating system to carry out the activities we require our computers to do. Computers and technology come in different forms and sizes and due to the capitalistic nature of our economy everyone is allowed to come up with their own form of computer and even the technology to run it. In recent years’ companies have gained interest doing business digitally and since software have become easier to write or code, it is also vulnerable- easy for programmers to access and exploit called hacking. Hackers are unapproved clients who break into a technological framework, change or decimate data, frequently by introducing hazardous malware without the insight and assent of the host company. Companies are now at risk of losing much more than money by doing business the digital way. It is in this view that the Security Exchange

UNIX, Linux, and Windows Servers Security When comparing Linux/Unix versus Windows platforms for security it is important to take into account the security issues being addressed. The most common types of security breaches in today’s business world are based on social engineering attacks. These attacks are focused on bypassing security measures by tricking users into accomplishing the tasks required by the malicious code. These attacks can introduce numerous types of malicious code into the network ranging from spyware up to and including viruses. When comparing Windows versus Linux/Unix it is important to realize that more security features may be available depending on the exact operating system. This comparison is not to compare

The always and ever increasing quantity of products with IP routers are incorporating packet filtering as a tool to help in improving the network security if utilized in the proper way, packet filtering is a great tool for a network’s security or networks administrators that are security conscious but in order for it to be used effectively one must have an in-depth understanding of its many capabilities and weaknesses, advantages and disadvantages and what type of particular protocol that the filters are being applied to. This paper begin by defining firewall and identifying the different types of firewall then goes into Packet filtering describing some of the characteristics and some of the application protocol then the paper identified

Linux is a trademark owned by Linus Torvalds [1]. It is an operating system which is powerful, free and inexpensive to own based on UNIX [1]. It is a POSIX-compliant with versions available to install in cell phones, supercomputers and most computing systems [1]. Linux is an open source program