Introduction
... Prerequisites:CSE 211, CSE 232 CSE 323 (strongly recommended) CSE 331 Operating Systems Design ...
... Prerequisites:CSE 211, CSE 232 CSE 323 (strongly recommended) CSE 331 Operating Systems Design ...
Chapter 2: Operating
... 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 ...
pps - AquaLab - Northwestern University
... Layers - Device-independent SW Some part of the I/O SW can be device independent Uniform interfacing with drivers – Fewer modifications to the OS with each new device – Easier naming (/dev/disk0) – major & minor device #s in UNIX (kept by the i-node of the device’s file) – Device driver writers kno ...
... Layers - Device-independent SW Some part of the I/O SW can be device independent Uniform interfacing with drivers – Fewer modifications to the OS with each new device – Easier naming (/dev/disk0) – major & minor device #s in UNIX (kept by the i-node of the device’s file) – Device driver writers kno ...
Java Threads
... Linux refers to them as tasks rather than threads Thread creation is done through clone() system call clone() allows a child task to share the address space ...
... Linux refers to them as tasks rather than threads Thread creation is done through clone() system call clone() allows a child task to share the address space ...
The Pros and Cons of Open Source Security
... or critical mission communications. To make matters worse, Tor uses the same circuit for all of each user’s connections. Therefore, once an exit node observes identifying information, it can trace all traffic on the circuit back to the client, even if some of the traffic is encrypted. While the circ ...
... or critical mission communications. To make matters worse, Tor uses the same circuit for all of each user’s connections. Therefore, once an exit node observes identifying information, it can trace all traffic on the circuit back to the client, even if some of the traffic is encrypted. While the circ ...
Intrusion Detection Systems - University of California, Santa Cruz
... How close the system is to crossing a threshold and alerting us to an attack ...
... How close the system is to crossing a threshold and alerting us to an attack ...
Operating System
... Optimizing use of random access memory (RAM) With virtual memory (VM), portion of hard disk is allocated ...
... Optimizing use of random access memory (RAM) With virtual memory (VM), portion of hard disk is allocated ...
unix intro
... • Do we want all programs to have access to all instructions? • The OS is a program that acts as an intermediary between the application programs and the hardware resources – All communication requires hardware resources, thus the OS is also an intermediary between users and applications ...
... • Do we want all programs to have access to all instructions? • The OS is a program that acts as an intermediary between the application programs and the hardware resources – All communication requires hardware resources, thus the OS is also an intermediary between users and applications ...
What is an Operating System?
... ■ Software errors (exceptions or traps) too ■ User program requests (like open file, talk to the net) too ■ Processes should not be allowed to access other processes space ■ Dualmode operation allows OS to protect itself and other system ...
... ■ Software errors (exceptions or traps) too ■ User program requests (like open file, talk to the net) too ■ Processes should not be allowed to access other processes space ■ Dualmode operation allows OS to protect itself and other system ...
The init process cont. - Workshops
... The root partition is where critical system files live, including the programs necessary to boot the system in to “single user” mode. The idea is that this part of the system does not grow or change, but rather stays isolated from the rest of the operating system. If you give enough room to /usr and ...
... The root partition is where critical system files live, including the programs necessary to boot the system in to “single user” mode. The idea is that this part of the system does not grow or change, but rather stays isolated from the rest of the operating system. If you give enough room to /usr and ...
Principals of Information Security, Fourth Edition
... – Protect cardholder data – Maintain vulnerability management program – Implement strong access control measures – Regularly monitor and test networks – Maintain information security policy Principles of Information Security, Fifth Edition ...
... – Protect cardholder data – Maintain vulnerability management program – Implement strong access control measures – Regularly monitor and test networks – Maintain information security policy Principles of Information Security, Fifth Edition ...
Lecture Notes
... • Design/implement the process and resource manager – data structures and functions • Design/implement a driver program (shell) – command language and interpreter • Instantiate the manager to include at start-up: ...
... • Design/implement the process and resource manager – data structures and functions • Design/implement a driver program (shell) – command language and interpreter • Instantiate the manager to include at start-up: ...
Introduction to Information Security Chapter N
... IP Scan and Attack – Compromised system scans random or local range of IP addresses and targets any of several vulnerabilities known to hackers or left over from previous exploits Web Browsing - If the infected system has write access to any Web pages, it makes all Web content files infectious, ...
... IP Scan and Attack – Compromised system scans random or local range of IP addresses and targets any of several vulnerabilities known to hackers or left over from previous exploits Web Browsing - If the infected system has write access to any Web pages, it makes all Web content files infectious, ...
1.1. The UNIX Operating System
... UNIX can be installed on many hardware platforms. Its widespread use can be traced to the decision to develop it using the C language. Multiuser The UNIX design allows multiple users to concurrently share hardware and software Multitasking UNIX allows a user to run more than one program at a time. I ...
... UNIX can be installed on many hardware platforms. Its widespread use can be traced to the decision to develop it using the C language. Multiuser The UNIX design allows multiple users to concurrently share hardware and software Multitasking UNIX allows a user to run more than one program at a time. I ...
Department of CSE
... 14. Describe the action taken by a kernel to context switch between processes? 15. Describe the difference among short-term, medium-term and long-term scheduling. 16. What are the differences between user level and kernel level threads? 17. Define the essential properties of the following types of O ...
... 14. Describe the action taken by a kernel to context switch between processes? 15. Describe the difference among short-term, medium-term and long-term scheduling. 16. What are the differences between user level and kernel level threads? 17. Define the essential properties of the following types of O ...
Lecture 22 File-System Interface
... collection of similar records treated as a single entity have unique file names may restrict access ...
... collection of similar records treated as a single entity have unique file names may restrict access ...
protect a system from cyber attacks?
... Microsoft Windows operating system and Ethernet TCP/IP to reduce costs and improve performance. Additionally, direct communications between control and business systems has been employed to improve operational efficiency and manage production assets more cost-effectively. ...
... Microsoft Windows operating system and Ethernet TCP/IP to reduce costs and improve performance. Additionally, direct communications between control and business systems has been employed to improve operational efficiency and manage production assets more cost-effectively. ...
Chapter 1 - Computing
... – Primary design features support: • Multimedia applications • Internet and Web access • Client/server computing ...
... – Primary design features support: • Multimedia applications • Internet and Web access • Client/server computing ...
Lecture 5
... I/O operations – since user programs cannot execute I/O operations directly, the operating system must provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing eithe ...
... I/O operations – since user programs cannot execute I/O operations directly, the operating system must provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing eithe ...
Thread - Nipissing University Word
... Network OS's (e.g. Mach, modern UNIX, Windows NT) • In a distributed OS, the user doesn't know (or care) where his programs are – do the same but they also support a wide range of communication standards and running. enable remote processes to access (some) local resources (e.g. files). ...
... Network OS's (e.g. Mach, modern UNIX, Windows NT) • In a distributed OS, the user doesn't know (or care) where his programs are – do the same but they also support a wide range of communication standards and running. enable remote processes to access (some) local resources (e.g. files). ...
ICS 143 - Introduction to Operating Systems
... e.g. embedded operating systems for devices - cell phones, sensors and controllers real-time operating systems - aircraft control, multimedia ...
... e.g. embedded operating systems for devices - cell phones, sensors and controllers real-time operating systems - aircraft control, multimedia ...
Network Administration Review
... • Identify the names, purpose, and characteristics of computer systems and peripheral devices (e.g., motherboards, expansion/adapter cards, processors, cooling systems, memory, storage devices, power supplies, input devices, cables, output devices ) • Identify the steps to install, configure, optimi ...
... • Identify the names, purpose, and characteristics of computer systems and peripheral devices (e.g., motherboards, expansion/adapter cards, processors, cooling systems, memory, storage devices, power supplies, input devices, cables, output devices ) • Identify the steps to install, configure, optimi ...
Data security based on multipath routing.
... The sender ‘A’ and the receiver ‘B’ are authenticated. WEP (Wireless Equivalent Privacy) is used for the encryption/decryption of all the frames at MAC layer and the authentication of the terminals. A mechanism of discovering the topology of the network is available. The used routing protoco ...
... The sender ‘A’ and the receiver ‘B’ are authenticated. WEP (Wireless Equivalent Privacy) is used for the encryption/decryption of all the frames at MAC layer and the authentication of the terminals. A mechanism of discovering the topology of the network is available. The used routing protoco ...
A Technical Introduction to NGSCB Security Summit East 2003
... Nothing about this architecture prevents any nexus from running; however, the owner can control which nexuses are allowed to run ...
... Nothing about this architecture prevents any nexus from running; however, the owner can control which nexuses are allowed to run ...