Operating-System Structures
... Protection involves ensuring that all access to system resources is controlled Security of the system from outsiders requires user authentication, extends to defending external I/O devices ...
... Protection involves ensuring that all access to system resources is controlled Security of the system from outsiders requires user authentication, extends to defending external I/O devices ...
Chapter One - Drexel University
... time from either the client’s TCP/IP configuration or the server’s DHCP configuration In some instances, a user must terminate a lease ...
... time from either the client’s TCP/IP configuration or the server’s DHCP configuration In some instances, a user must terminate a lease ...
CS 343 OS
... Virtual Memory – abstraction for main memory and I/O devices Processes – abstractions for processor, main memory, and I/O devices ...
... Virtual Memory – abstraction for main memory and I/O devices Processes – abstractions for processor, main memory, and I/O devices ...
Discovering Computers
... system provides a user interface, manages programs, manages memory, and coordinates tasks ...
... system provides a user interface, manages programs, manages memory, and coordinates tasks ...
![2013chapter0.ppt [兼容模式]](http://s1.studyres.com/store/data/002898662_1-e8a437736f7c2b25ea015c0d1428106d-300x300.png)
2013chapter0.ppt [兼容模式]
... n Reliability and fault tolerance: how do we deal with failures ? n Extensibility: how do we add new features ? ...
... n Reliability and fault tolerance: how do we deal with failures ? n Extensibility: how do we add new features ? ...
Protection
... and complex systems Networks, cloud computing, big data and other high-tech application and development are facing complex network environment ...
... and complex systems Networks, cloud computing, big data and other high-tech application and development are facing complex network environment ...
an introduction to solaris
... Sun’s UNIX operating environment began life as a port of BSD UNIX to the Sun-1 workstation. The early versions of Sun’s UNIX were known as SunOS, which is the name used for the core operating system component of Solaris. SunOS 1.0 was based on a port of BSD 4.1 from Berkeley labs in 1982. At that ti ...
... Sun’s UNIX operating environment began life as a port of BSD UNIX to the Sun-1 workstation. The early versions of Sun’s UNIX were known as SunOS, which is the name used for the core operating system component of Solaris. SunOS 1.0 was based on a port of BSD 4.1 from Berkeley labs in 1982. At that ti ...
Process Control
... process’s stack in virtual memory as needed, but it will never try to shrink it. z Explain why it would be possible to shrink the stack, and z Why the UNIX kernel does not shrink it. ...
... process’s stack in virtual memory as needed, but it will never try to shrink it. z Explain why it would be possible to shrink the stack, and z Why the UNIX kernel does not shrink it. ...
Protocol Overview
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
WHAT IS EC SECURITY? - Joseph H. Schuessler, PhD
... Ways to determine whether intruders attempted to break into the EC system; whether they were successful; and what they may have done information assurance (IA) The protection of information systems against unauthorized access to or modification of information whether in storage, processing, or tra ...
... Ways to determine whether intruders attempted to break into the EC system; whether they were successful; and what they may have done information assurance (IA) The protection of information systems against unauthorized access to or modification of information whether in storage, processing, or tra ...
6 - Kuroski
... Multivendor Environment (SESAME); similar to Kerberos in that user is first authenticated to authentication server and receives token Token then presented to privilege attribute server (instead of ticket granting service as in Kerberos) as proof of identity to gain privilege attribute certificate ...
... Multivendor Environment (SESAME); similar to Kerberos in that user is first authenticated to authentication server and receives token Token then presented to privilege attribute server (instead of ticket granting service as in Kerberos) as proof of identity to gain privilege attribute certificate ...
Taking on the Giant (anatomy of an attack)
... Any packet with a source IP address NOT starting with 129.130 is discarded at the campus border Thus the DDoS attack flooded our campus network with traffic, but not the intended target ...
... Any packet with a source IP address NOT starting with 129.130 is discarded at the campus border Thus the DDoS attack flooded our campus network with traffic, but not the intended target ...
General IT Auditing Techniques
... Typical results of a port scan include: Discovery of ports that are listening or open Determination of which ports refuse connections Determination of connections that time out Port scanning tips include: Start by scanning slowly, a few ports at a time To avoid detection, try the same port across se ...
... Typical results of a port scan include: Discovery of ports that are listening or open Determination of which ports refuse connections Determination of connections that time out Port scanning tips include: Start by scanning slowly, a few ports at a time To avoid detection, try the same port across se ...
03-WAS Common Threats - Professional Data Management
... The primary recommendations are to establish all of the following: A repeatable hardening process that makes it fast and easy to deploy another environment that is properly locked down. Development, QA, and production environments should all be configured identically. This process should be automate ...
... The primary recommendations are to establish all of the following: A repeatable hardening process that makes it fast and easy to deploy another environment that is properly locked down. Development, QA, and production environments should all be configured identically. This process should be automate ...
Chapter 1: Introduction What is an Operating System? Computer
... ) initial control in monitor ) control transfers to job ) when job completes control transfers back to monitor Operating System Concepts ...
... ) initial control in monitor ) control transfers to job ) when job completes control transfers back to monitor Operating System Concepts ...
ppt
... Any non-internal monitor procedure can create a new process by the use of a new key word called FORK that is placed in front of the procedure call This FORK procedure call will allow the current process to work concurrently with the new process created. It also returns a reference to the process jus ...
... Any non-internal monitor procedure can create a new process by the use of a new key word called FORK that is placed in front of the procedure call This FORK procedure call will allow the current process to work concurrently with the new process created. It also returns a reference to the process jus ...
lect-intro
... Late Policy, but there will be 3 Bonus Days (can’t take all three bonus days for one MP!) ...
... Late Policy, but there will be 3 Bonus Days (can’t take all three bonus days for one MP!) ...
CENG334 Introduction to Operating Systems
... significantly from those of disk I/O, most operating systems provide a network I/O interface that is different from the read() –write() –seek() interface used for disks. the system calls in the socket interface enable an application to create a socket, to connect a local socket to a remote address ( ...
... significantly from those of disk I/O, most operating systems provide a network I/O interface that is different from the read() –write() –seek() interface used for disks. the system calls in the socket interface enable an application to create a socket, to connect a local socket to a remote address ( ...
3 Operating Systems
... tape and the loading of the assembler. The other steps, like the linking process where "library" code was read from tapes were handled in similar fashion. If the process resulted in successful construction of an executable program, this was then "RUN" so that it could process its data cards. The FOR ...
... tape and the loading of the assembler. The other steps, like the linking process where "library" code was read from tapes were handled in similar fashion. If the process resulted in successful construction of an executable program, this was then "RUN" so that it could process its data cards. The FOR ...
chap12
... Encrypted code that person, Web site, or company attaches to electronic message to verify identity of message sender • Code usually consists of user's name and hash of all or part of message ...
... Encrypted code that person, Web site, or company attaches to electronic message to verify identity of message sender • Code usually consists of user's name and hash of all or part of message ...
Name (Please print legibly)
... a) Runs a new program in a child process. b) Provides an exact copy of the current process’s address space to an existing child process. c) Creates a new child process and gives it an exact copy of the current process’s address space. d) Creates a new child thread and gives it an exact copy of the c ...
... a) Runs a new program in a child process. b) Provides an exact copy of the current process’s address space to an existing child process. c) Creates a new child process and gives it an exact copy of the current process’s address space. d) Creates a new child thread and gives it an exact copy of the c ...
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[slides] Case study: Windows
... a base priority), and an affinity for one or more processors. Threads are the unit of execution scheduled by the kernel’s dispatcher. Each thread has its own state, including a priority, processor affinity, ...
... a base priority), and an affinity for one or more processors. Threads are the unit of execution scheduled by the kernel’s dispatcher. Each thread has its own state, including a priority, processor affinity, ...
Operating-System Structures
... and file storage) may have special allocation code, others (such as I/O devices) may have general request and release code. ...
... and file storage) may have special allocation code, others (such as I/O devices) may have general request and release code. ...