Lec10-OS-process - ECE Users Pages
... Program with punch cards Time wasted while operators walk around ...
... Program with punch cards Time wasted while operators walk around ...
Network Security
... Outline of the Course • This chapter serves as an introduction to the entire course. The remainder of the book is organized into three parts: • Part One : Provides a concise survey of the cryptographic algorithms and protocols underlying network security applications, including encryption, hash fun ...
... Outline of the Course • This chapter serves as an introduction to the entire course. The remainder of the book is organized into three parts: • Part One : Provides a concise survey of the cryptographic algorithms and protocols underlying network security applications, including encryption, hash fun ...
2.01 - Suan Dusit Rajabhat University
... Works with VM Manager to provide memory-mapped file I/O Controls the Windows 7 cache manager, which handles ...
... Works with VM Manager to provide memory-mapped file I/O Controls the Windows 7 cache manager, which handles ...
Chapter 3: Operating Systems
... Operating System Components Shell: Communicates with users, provides access to the services of a kernel Text based Graphical user interface (GUI) Kernel: Performs basic required functions File manager Device drivers Memory manager Scheduler and dispatcher DM526 Operating Systems ...
... Operating System Components Shell: Communicates with users, provides access to the services of a kernel Text based Graphical user interface (GUI) Kernel: Performs basic required functions File manager Device drivers Memory manager Scheduler and dispatcher DM526 Operating Systems ...
An introduction to operating systems
... intended to work 100% of the time, which is unattainable with batch systems, since the processor, when executing an I/O instruction, should wait for the device, very slow compared to the processor speed, to complete the operation. This led to the engineers of the time to devise strategies for a more ...
... intended to work 100% of the time, which is unattainable with batch systems, since the processor, when executing an I/O instruction, should wait for the device, very slow compared to the processor speed, to complete the operation. This led to the engineers of the time to devise strategies for a more ...
Network Security Network Attacks and Mitigation
... • IP spoofing can use either a trusted IP address in the network or a trusted external IP address. • Uses for IP spoofing include: – Injecting malicious data or commands into an existing data stream – Diverting all network packets to the hacker who can then reply as a trusted user by changing the ro ...
... • IP spoofing can use either a trusted IP address in the network or a trusted external IP address. • Uses for IP spoofing include: – Injecting malicious data or commands into an existing data stream – Diverting all network packets to the hacker who can then reply as a trusted user by changing the ro ...
Module 3: Operating
... Operating System Services OS as a service provider via system calls & commands ...
... Operating System Services OS as a service provider via system calls & commands ...
Intrusion Detection System(IDS) Overview
... firewalls, virus scanners, authentication systems, VPN etc.. Given their role, these are prime targets and being managed by humans, they are error prone. Failure of one of these tools will jeopardize the security!. ...
... firewalls, virus scanners, authentication systems, VPN etc.. Given their role, these are prime targets and being managed by humans, they are error prone. Failure of one of these tools will jeopardize the security!. ...
OS Lab Manual
... Server Operating Systems Server-oriented operating systems tend to have certain features in common that make them more suitable for the server environment, such as GUI not available or optional ...
... Server Operating Systems Server-oriented operating systems tend to have certain features in common that make them more suitable for the server environment, such as GUI not available or optional ...
Firewalls
... Like filtering firewalls, do not usually look at data traffic flowing between two networks, but prevent direct connections between one network and another Accomplished by creating tunnels connecting specific processes or systems on each side of the firewall, and allow only authorized traffic in ...
... Like filtering firewalls, do not usually look at data traffic flowing between two networks, but prevent direct connections between one network and another Accomplished by creating tunnels connecting specific processes or systems on each side of the firewall, and allow only authorized traffic in ...
ppt
... happens” to tell you the IP of BankOfAmerica.com DNS client puts it in cache. Fun! Once this bug was found, DNS clients stopped accepting info they didn’t request ...
... happens” to tell you the IP of BankOfAmerica.com DNS client puts it in cache. Fun! Once this bug was found, DNS clients stopped accepting info they didn’t request ...
Essentials of Security
... Host Layer Protection Harden client and server operating systems Disable unnecessary services Monitor and audit access and attempted access Install and maintain antivirus software ...
... Host Layer Protection Harden client and server operating systems Disable unnecessary services Monitor and audit access and attempted access Install and maintain antivirus software ...
Computer Security and Safety, Ethics, and Privacy
... A password is a private combination of characters associated with the user name that allows access to certain computer resources. A CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a program developed at CMU to verify that user input is not ...
... A password is a private combination of characters associated with the user name that allows access to certain computer resources. A CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a program developed at CMU to verify that user input is not ...
Course Overview - Cyber Security Lab
... U.S. had been affected. Many of them became so loaded with running processes that they were unable to continue any processing. Some machines failed completely with all swap space or process tables exhausted. The Internet had never been attacked in this way before, and November 3, 1988 came to be kno ...
... U.S. had been affected. Many of them became so loaded with running processes that they were unable to continue any processing. Some machines failed completely with all swap space or process tables exhausted. The Internet had never been attacked in this way before, and November 3, 1988 came to be kno ...
Scheduling Scheduling Criteria Scheduling algorithms Shortest Job
... Solution: Increase priority of processes after a while (Ageing) Eike Ritter ...
... Solution: Increase priority of processes after a while (Ageing) Eike Ritter ...
Network Security
... Outline of the Course • This chapter serves as an introduction to the entire course. The remainder of the book is organized into three parts: • Part One : Provides a concise survey of the cryptographic algorithms and protocols underlying network security applications, including encryption, hash fun ...
... Outline of the Course • This chapter serves as an introduction to the entire course. The remainder of the book is organized into three parts: • Part One : Provides a concise survey of the cryptographic algorithms and protocols underlying network security applications, including encryption, hash fun ...
CSC 405 Introduction to Computer Security
... – There must be a clear mapping from security requirements to the design – Validate that the design has been done correctly • A mapping from security requirements to design to tests ...
... – There must be a clear mapping from security requirements to the design – Validate that the design has been done correctly • A mapping from security requirements to design to tests ...
CS 519 -- Operating Systems -
... User can read/write only in fixed sized blocks Unlike other devices, block devices support random access We can read or write anywhere in the device without having to ‘read all the bytes first’ ...
... User can read/write only in fixed sized blocks Unlike other devices, block devices support random access We can read or write anywhere in the device without having to ‘read all the bytes first’ ...
Operating system (OS)
... The operating system allocates memory area for each running program. It keeps programs from interfering with each other. The OS uses virtual memory as an extension of RAM. Pages of data and instructions are swapped between RAM and the hard drive if RAM is full. The OS works with the direct mem ...
... The operating system allocates memory area for each running program. It keeps programs from interfering with each other. The OS uses virtual memory as an extension of RAM. Pages of data and instructions are swapped between RAM and the hard drive if RAM is full. The OS works with the direct mem ...
A User Mode L4 Environment
... Availability: Linux machines are available almost everywhere. In a new environment, it is sometimes difficult or for security reasons not allowed to change the operating system of machines connected to the internal network. Hence, an L4 or L4 Linux machine is not available. New Platforms: A port of ...
... Availability: Linux machines are available almost everywhere. In a new environment, it is sometimes difficult or for security reasons not allowed to change the operating system of machines connected to the internal network. Hence, an L4 or L4 Linux machine is not available. New Platforms: A port of ...
Operating System Structure
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
Chapter 5 - Nawar.us
... individuals should back up their PC occasionally and all important files each time they are modified. ...
... individuals should back up their PC occasionally and all important files each time they are modified. ...
OWASP`s Ten Most Critical Web Application Security Vulnerabilities
... Rethink whether you need to store the information Don’t store user passwords – use a hash like SHA-256 ...
... Rethink whether you need to store the information Don’t store user passwords – use a hash like SHA-256 ...
Slide 1
... Information System Security – Managerial Techniques Organizational Policies and Procedures • Acceptable Use Policies – formally document how systems should be used, for what, and penalties for non-compliance Backups and Disaster Recovery • Backups – taking periodic snapshots of critical systems dat ...
... Information System Security – Managerial Techniques Organizational Policies and Procedures • Acceptable Use Policies – formally document how systems should be used, for what, and penalties for non-compliance Backups and Disaster Recovery • Backups – taking periodic snapshots of critical systems dat ...
Open Source Software
... About Linux… The Open Source Operating System • The primary difference between Linux and many other popular contemporary operating systems is that the Linux kernel and other components are free and open source software. Linux is not the only such operating system, although it is the best-known and ...
... About Linux… The Open Source Operating System • The primary difference between Linux and many other popular contemporary operating systems is that the Linux kernel and other components are free and open source software. Linux is not the only such operating system, although it is the best-known and ...