Sony SNC-RZ50N User Guide - Page 114
Glossary, CA Certificate Authority
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Others Glossary ActiveX control A component program object that can be used with web pages or other application programs. The technology for creating ActiveX control is part of software developed by Microsoft. AES Abbreviation for Advanced Encryption Standard. This is the next-generation of encryption standard adopted by the U.S. government. ARP commands The commands for checking the entry of the IP address and MAC address in a host computer, or for updating them. Bandwidth control To limit the amount of transmitted data. Bit rate The rate at which data bits are transmitted. CA (Certificate Authority) A private authority that issues and controls digital certificates to be used for authentication regarding network access. Capture To display the audio and video digital data from the video equipment on a computer. Codec Software/hardware for coding/decoding video and audio data. Common name A URL to be typed in the browser when you access a website employing SSL (Secure Sockets Layer) protocol with the security function. Access is successful after the URL of the website is verified as matching the server's common name. Contrast The difference in tone between the lightest and darkest portions of the image. Default gateway Device that can be used to access the other network. DHCP server Abbreviation for Dynamic Host Configuration Protocol server. The IP address of a terminal without an individual IP address can be automatically distributed by the Dynamic Host Configuration Protocol (DHCP). The DHCP server assigns the IP addresses to the terminals. Digital certificate An electronic certificate that a CA (Certificate Authority) attests that a public key to cancel a secret code is issued by an authentic publisher. Digital zoom Zooming in/out function of an image without using an optical zooming function. DNS server Abbreviation for Domain Name System server. As an IP address required for connecting to the device on an IP network is numerical and difficult to remember, the Domain Name System was established. A domain name is alphabetic and is easier to remember. When a client computer uses a domain name to connect to another computer, it asks a DNS server to translate the name into the corresponding IP address. Then the client computer can obtain the IP address of the computer to be connected. EAP method Abbreviation for Extensible Authentication Protocol. This is a protocol extended from PPP (Point-to-Point Protocol) and having an authentication function. EAP-TLS authentication TLS is an authentication protocol of the EAP methods using Transport Layer Security. By using digital certificates and other methods, EAP-TLS prevents data falsification, eavesdropping and spoofing. Frame rate The number of frames of a moving image that can be transmitted per a second. FTP client Software to be used for accessing the FTP server. FTP server A server to be used to transfer files via a network. HTTP port A port used to communicate between the web server and the web client such as a web browser. 114 Glossary