Topic # 12 of outline Configuring Local Services.pptx
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Windows services allow applications to run in the background without a user interface. They can be configured to start automatically when the system boots up. Common windows services include the Windows Event Log, Windows Firewall, and Windows Error Reporting services. Developers can use windows services to host web services, making the web services always available even when no users are logged on. Distributed applications split an application across multiple computers for scalability or to access external services, like an ecommerce site using PayPal. Interoperable applications can communicate with any other application built on any platform.
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Topic # 14 of outline Administer Local Users and Groups.pptx
The document discusses how to manage local users and groups on a Windows computer using the Local Users and Groups tool. It describes the default user and group accounts that are created, including the Administrator, Guest, and HelpAssistant accounts. It explains how to use rights and permissions to control account access and provides examples of common types of local groups.
Topic # 16 of outline Managing Network Services.pptx
This document summarizes how network services are managed. It discusses several key tools that network administrators use to debug, understand, and configure networks, including Wireshark for packet analysis, PuTTY for remote connections, Traceroute for following packet routes, Nagios and Shinken for supervision and monitoring, Cacti and Munin for metrics and performance monitoring, Nmap for discovery and mapping of network services, and Ping for basic network connectivity testing. The goal of these tools is to provide network administrators with visibility into their networks and troubleshoot any issues.
Topic #3 of outline Server Environment.pptx
The document provides information about server environments including Microsoft Windows Server and Linux Server. It defines what a server is, why servers are used, examples of different types of servers, and how servers are connected to other computers on a network. It describes key differences between Windows Server and regular Windows operating systems, and highlights some common roles and management software included in Windows Server but not regular Windows. It also provides an overview of Linux servers, their benefits, and some popular Linux server flavors suited for different use cases.
Topic # 10 of outline SNA.pptx
This document provides an overview and comparison of different operating systems. It begins by defining what an operating system is and its main components - the kernel and shell. It then describes the two most popular kernel types - monolithic and microkernels. The document also outlines common operating system functions and types. It lists some of the most used operating systems like Windows, MacOS, Linux, iOS, and Android. Finally, it provides more details on the Microsoft Windows and Mac OS operating systems, including their key features, pros, and cons.
IP tables,Filtering.pptx
An internet protocol address is a numerical label assigned to devices connected to a network that uses IP for communication. IP tables is the basic firewall software used in Linux, which uses chains and rules to filter packets and decide whether to process or discard them based on the packet type. The three main tables in IP tables are the filter table for handling network packets, the nat table for altering packets during connection creation, and the mangle table for specific packet alterations.
Data integrity 03.pptx
This document discusses data integrity and how to preserve it. It defines data integrity as the completeness, accuracy, and consistency of data throughout its lifecycle. Data integrity ensures the validity and accuracy of data and is different from data security which protects data. Threats to data integrity include human error, transfer errors, security issues, attacks, and hardware problems. Tools are recommended to check for duplicate files and remove them to maintain integrity. Backups are also important to prevent data loss. The document outlines features of data integrity like accessibility and reliability of data. It provides a checklist for input and data validation, duplicate removal, and access controls to preserve integrity.
Data and signals.ppt
This document discusses analog and digital signals. It begins by explaining that signals can be either analog or digital. Analog signals are continuous and can have an infinite number of values, while digital signals are discrete and can have only a limited number of values. It then discusses periodic and nonperiodic signals, explaining that periodic signals repeat over time while nonperiodic signals do not. The document uses examples and diagrams to illustrate concepts like bandwidth, frequency, amplitude, and how signals can be represented in both the time and frequency domains.
Lec#6.ppt
This document discusses different types of transmission media including twisted-pair cable, coaxial cable, and fiber-optic cable. It provides figures and tables explaining the key characteristics of each type of guided transmission media, such as their construction, categories, and connectors. Guided media provides a channel for transmitting data from one device to another.
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Topic # 12 of outline Configuring Local Services.pptx
- 2. Windows Services A windows service is similar to any other program or application running on a windows machine. Difference between windows service and a regular application: • Windows service runs in the background. • They can be configured automatically to start when the system starts. • They don’t have user interface.
- 3. Windows Service(Contd..) To view all the windows services installed on a windows machine : • Windows+R Key for Run window • Type “services.msc” and press enter • The services window will display all the services installed on that machine.
- 4. Windows Service(Contd..) Uses of windows services : Windows services provide core operating system features such as: • Windows Event log service • Windows Firewall service • Windows Error reporting service
- 5. Windows Service(Contd..) When to use a windows service : • To run an application in the background all the time without any user intervention we should use Windows service. • A developer can use a windows service to host a wcf service. Then the windows service can be configured to start automatically when the computer starts. • This makes the wcf service always available to clients who consume this service, even if no-one is logged on, on that computer.
- 6. Windows Service(Contd..) What is a distributed application? • A distributed application, is an application where parts of it run on 2 or more computers. • Distributed applications are also called as connected systems. Example : 1. A web application running on one machine and a web service that this web application is consuming is running on another machine. 2. An enterprise web application may have the Presentation tier, Business tier and Data Access tier – each running on a different machine.
- 7. Windows Service(Contd..) Why build distributed application? • An enterprise application may need to use the services provided by another enterprises. Example : An ecommerce application may use paypal service for payments. • For better scalability Example : An enterprise web application may have the Presentation tier, Business tier and Data Access tier – each running on a different machine.
- 8. Windows Service(Contd..) What is an interoperable application? An application that can communicate with any other application which is built on any platform is called as interoperable application. Web services are interoperable.
Editor's Notes
- Windows Communication Foundation (WCF) is a framework for building service-oriented applications. Using WCF, you can send data as asynchronous messages from one service endpoint to another. A service endpoint can be part of a continuously available service hosted by IIS, or it can be a service hosted in an application.