Firewall & VPN

Firewall & VPN

Terms relating to firewalls, which help keep a network safe by not accepting potentially harmful datapackets. Also relates to VPNs, or virtual private networks, that virtually provide a different IP address which makes it seem that the user is using a computer from another location.

Industry: Network hardware

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Firewall & VPN

Address hiding

Network hardware; Firewall & VPN

Refers to the firewall's practise of concealing the IP addresses of hosts behind the firewall. For outbound traffic, the firewall, by default, substitutes its public IP address for the client's ...

AH

Network hardware; Firewall & VPN

This acronym means "Authentication Header", and refers to a protocol, within the IPSEC suite of protocols, for the authentication of IP data. The AH protocol is described in RFC 1826.

Behind

Network hardware; Firewall & VPN

Refers to the networks and hosts protected by the firewall; that is, in the protected hosts and network. See also inside.

CIDR

Network hardware; Firewall & VPN

This acronym means "Classless Inter-Domain Routing", which is documented in RFCs 1517-1520.

DNS

Network hardware; Firewall & VPN

DNS is the service used to translate Internet names, such as www.symantec.com, into IP addresses, and the reverse. This service is used by client software, such as the browser on a PC, to locate ...

NIC

Network hardware; Firewall & VPN

This acronym means Network Interface Card, and is used interchangeably with the term "adapter". Both terms are used when referring to the network communication cards that are placed in the PC.

HTTP

Network hardware; Firewall & VPN

This acronym means "Hyper-Text Transfer Protocol" and refers the application-level protocol used to browse the World Wide Web. HTTP typically uses port 80/TCP.