Unix

all operating systems, especially on an enterprise environment. Linux traditionally has less virus directed at it, it’s still a concern that cannot be taken lightly. While malware is usually not created to attack Linux systems, Linux distributions can still act as carriers to others for an example through an email or web server, and the virus actually lies dormant until exposed to a windows or apple system. Rootkits are probably the most common infection that needs antivirus to protect against for Linux systems. Rootkits exploit the ability to gain root control over a system or elevate privileges to the root level. Luckily there are several open sourced and vendor distributed anti-virus and anti-malware programs available for Linux and UNIX type operating systems. A short list is Clam AV, Kaspersky, and AVG. Monitoring and Logging Techniques To monitor and alert the administrator of changes to operating system files you can use a variety of tools. A few IDS’s Intrusion Detection Systems are Tripwire and AIDE. These provide monitoring of a baseline and log changes that are made. Another tool is actually the command line tool virsh #prompt ran in administrator mode. Very extensive tools that check for open ports, files and network sources are NESSUS and SAINT (System Administrators Integrated Network Tool). Other well-known applications capable of doing similar network monitoring are Nessus, and Wireshark. You could use the telnet command to do a simple check for open…

determine whether HP should continue investing its resources in extending the capability of its UNIX-based Performance Architecture built on the proprietary HP RISC microprocessor or whether the company should…

Task 1 In Unix/Linux operating system a user can have root access or not, the root access provides complete access to user of a system. There are some following risks to have a single root user on Unix/Linux operating system. Easy to hack: If any security error broke the security then a hacker can get the access of all data and can get the whole control of hardware. It allow to retrieve all files and data without root access. So, it is a big risk of losing and stolen data and important…

Then the Application Service needs to be determined for exampling what type of MEAP application is being used. This could be for example financial, managerial, customer, etc… type of applications. Each one of these applications handles certain type of business processes in order to complete the request. After the Application Service is selected, it passes the information to the Domain Server. Basically it determines what data entities stores the needed information within the system. As well as…

#Write a program that implements the Bubblesort algorithm #Registers used: # $a0 : For loading Syscall parameters like loading integer, string # address # $V0 : For intiating particular syscall and return values # $a1 : used as a argument to quicksort subroutine # $a2 : used as a argument to quicksort subroutine # $s1 : End address of iput array also as pointer # $s4,$t2 : Base Address of input array acts as pointer # $s3 : used to restore the address back to $s2 .text la…

Kenneth Lane Thompson was born on February 4, 1943 in New Orleans. Ken Thompson was an American pioneer of computer science. He worked at Bell Labs for most of his career. Thompson designed and implemented the original version of Unix OS. In 2006 he started working at Google. In 1965 Thompson got his Bachelor of Science, and in 1966 a Masters degree in electrical engineering and computer science at the University of California, Berkeley. Ken Thompson has received many awards and these some of…

Coroner's Toolkit is a group of basically free tools designed by Wietse Venema and Dan Farmer to be used in the forensic analysis of a UNIX machine. There are several reasons as to why local law enforcement agencies. First, the Coroner's Toolkit is specifically designed to be used in cyber-crime investigation (Farmer & Venema, 2005). This is an exceptionally powerful suite and therefore proper training of UNIX is a major condition in order to manage the Toolkit. Another important reason for…

1. Go to your home directory and run: Most file systems have designated directories to assign permissions or access rights to specific users. File permission controls users to view, change, navigate & execute the designated contents of the file directories. LINUX/UNIX coherently use file permission to enable access to ownership for files & directories. File permission includes rwx is for read, write, and execute permissions. $ ls –la 2. Create an empty file called “A.txt”. Let’s look at the…

UNIX/Linux Versus Mac Versus Windows All right, this is what I have learned about file management in Windows from experience. The first thing I learned is that in modern windows the OS handles everything it’s self to a large degree. You can specify where the files are, as in folders and differing hard drives, but not the sections of the hard drive they reside on. The next part of file management that can be set by the user with authorization, mainly the admin,…

“Modular technology” connects race and technology in more ways than most people think, especially with the UNIX operating system commonly used in computers, as it is “the first operating system to embrace modularity” according to Lisa Nakamura and Peter A. Chow-White (26). Besides the fact that most of the “key players” in this technological history includes mostly white men (22), a common factor in those who run American society as a whole, technology is more recently a contending control of…