The document discusses the technical elements of the public switched telephone network (PSTN). It describes how the PSTN is composed of customer premises equipment, local loops connecting to end office switches, a transport core of trunk lines connecting switches, and a signaling system. It explains how circuit switching is used to establish connections for voice calls and its inefficiency for data. The document also covers cellular network technologies like GSM and how channels are reused across different cells to support more customers.
This document discusses communications, telecommunications, and computer networks. It defines key concepts such as analog and digital signals, different types of transmission media including twisted pair cable, coaxial cable, fiber optic cable and wireless transmission, and networking devices like modems, multiplexers, and front-end processors. It also covers network topologies, different types of computer networks, and client-server models.
Dr. John Sum introduces various concepts related to telecommunications and computer networks. He discusses different types of telecommunication media that can transmit electronic signals including twisted pair wire, coaxial cable, fiber optic cable, microwave, satellite, cellular, and infrared transmission. He also describes network topologies like ring, bus, star, and hierarchical networks. The document covers protocols like TCP/IP and OSI 7-layer model, as well as applications of telecommunications including email, videoconferencing, electronic data interchange, and public network services.
This document provides details about a firewall workshop guide, including:
- An overview of topics to be covered such as basic routing and firewalls, pfSense installation and configuration, firewall rule configuration, and network monitoring.
- Requirements for workshop participants including computer hardware specs and recommended software.
- Sections within the guide on firewall types like packet filters, application proxies, and dynamic packet filters.
This document provides instructions for installing pfSense software on firewall appliances. It describes choosing installation types like full install or embedded, downloading the pfSense image, preparing installation media, performing the installation, assigning interfaces, configuring the default settings, and troubleshooting installation issues. The document is intended to guide users through the end-to-end pfSense installation process.
The document discusses Samsung's core camera technologies, including:
1) Super high resolution SV-V/A1 camera technology that can resolve up to 600TV lines and uses 12-bit A/D processing to provide vivid, clear images under low illumination.
2) SSNR and motion adaptive DNR that eliminate noise to generate distinct, clear images using adaptive 2D and 3D filtering.
3) SSDR and eXtended Dynamic Range technologies that increase visible detail in dark areas while maintaining clarity in bright areas for high contrast scenes.
4) Additional technologies like Virtual Progressive Scan, WDR, DIS, and privacy zones are described.
This document provides an overview and details of a training course on wireless technology and wireless communication networks. The course covers topics such as transmission fundamentals, wireless network protocols including TCP/IP, spread spectrum technology, cellular wireless communications, and wireless network security. It also provides background information on wireless systems, personal area networks, wireless local area networks, and public wide-area cellular networks.
This document outlines the course content for a training on inter-network fundamentals. The course covers topics such as communication system basics, computer network protocols, data transmission systems, network design concepts, and network security concepts. It also provides an overview of computer network concepts including the OSI reference model, common network devices, and networking topologies. The document is authored by Mr. Sopon Tumchota and copyrighted from 2006-2007.
The document discusses the technical elements of the public switched telephone network (PSTN). It describes how the PSTN is composed of customer premises equipment, local loops connecting to end office switches, a transport core of trunk lines connecting switches, and a signaling system. It explains how circuit switching is used to establish connections for voice calls and its inefficiency for data. The document also covers cellular network technologies like GSM and how channels are reused across different cells to support more customers.
This document discusses communications, telecommunications, and computer networks. It defines key concepts such as analog and digital signals, different types of transmission media including twisted pair cable, coaxial cable, fiber optic cable and wireless transmission, and networking devices like modems, multiplexers, and front-end processors. It also covers network topologies, different types of computer networks, and client-server models.
Dr. John Sum introduces various concepts related to telecommunications and computer networks. He discusses different types of telecommunication media that can transmit electronic signals including twisted pair wire, coaxial cable, fiber optic cable, microwave, satellite, cellular, and infrared transmission. He also describes network topologies like ring, bus, star, and hierarchical networks. The document covers protocols like TCP/IP and OSI 7-layer model, as well as applications of telecommunications including email, videoconferencing, electronic data interchange, and public network services.
This document provides details about a firewall workshop guide, including:
- An overview of topics to be covered such as basic routing and firewalls, pfSense installation and configuration, firewall rule configuration, and network monitoring.
- Requirements for workshop participants including computer hardware specs and recommended software.
- Sections within the guide on firewall types like packet filters, application proxies, and dynamic packet filters.
This document provides instructions for installing pfSense software on firewall appliances. It describes choosing installation types like full install or embedded, downloading the pfSense image, preparing installation media, performing the installation, assigning interfaces, configuring the default settings, and troubleshooting installation issues. The document is intended to guide users through the end-to-end pfSense installation process.
The document discusses Samsung's core camera technologies, including:
1) Super high resolution SV-V/A1 camera technology that can resolve up to 600TV lines and uses 12-bit A/D processing to provide vivid, clear images under low illumination.
2) SSNR and motion adaptive DNR that eliminate noise to generate distinct, clear images using adaptive 2D and 3D filtering.
3) SSDR and eXtended Dynamic Range technologies that increase visible detail in dark areas while maintaining clarity in bright areas for high contrast scenes.
4) Additional technologies like Virtual Progressive Scan, WDR, DIS, and privacy zones are described.
This document provides an overview and details of a training course on wireless technology and wireless communication networks. The course covers topics such as transmission fundamentals, wireless network protocols including TCP/IP, spread spectrum technology, cellular wireless communications, and wireless network security. It also provides background information on wireless systems, personal area networks, wireless local area networks, and public wide-area cellular networks.
This document outlines the course content for a training on inter-network fundamentals. The course covers topics such as communication system basics, computer network protocols, data transmission systems, network design concepts, and network security concepts. It also provides an overview of computer network concepts including the OSI reference model, common network devices, and networking topologies. The document is authored by Mr. Sopon Tumchota and copyrighted from 2006-2007.
4. 犖犖園犖犖犖犖犖犖朽 2
- 犢犖犖巌犖÷犖迦見犖犖犖犢犖 OpenVPN Access Server
- 犢犖犖犖朽 Menu --- > VPN --- > OpenVPN
- 犖犖 Menu Wizards
- 犢犖ム厳犖犖犖犖犖巌犖犖犖 Server 犖犖朽犖犖園犢犖犢犖犖犖園犖犖朽犖項犢犖犢犖犖迦 犢犖犢犖
Local User Access
- 犢犖ム鍵犖犖 Next
5. 犖犖園犖犖犖犖犖犖朽 2 (犖犢犖)
- 犖犖萎犖犖巌犖÷犖犢犖迦肩犖項犖犖園犖犖犖犖犖犖迦牽犖犖犢犖迦 Certificate Authority
(CA) 犖犖迦見犖犖園 VPN Server
- 犖犖迦見犖犖犖犢犖迦犢犖迦犢 犖犖迦検犖犖朽犖犖萎犖犖犢犖犖犖犖迦牽 犖犖園犖犖園硯犖犖∇犖迦
犖犖項犖犖迦犖犖о顕犖÷厳犖
- 犖犖ム険犖犖犖迦犖犖迦見犖犖犖犢犖迦犖犖犢犖犖犖巌犖
- 犢犖犢犖犖 Add New CA