A dedicated gateway machine with special security precautions on it, used to service outside network, especially Internet, connections and dial-in lines. The idea is to protect a cluster of more loosely administered machines hidden behind it from crackers. The typical firewall is an inexpensive microprocessor-based Unix machine with no critical data, with modems and public network ports on it, but just one carefully watched connection back to the rest of the cluster. The special precautions may include threat monitoring, call-back, and even a complete iron box keyable to particular incoming IDs or activity patterns.
Firewalls often run proxy gateways.
Synonym flytrap, Venus flytrap.
[fahyuh r-wawr-dn] /ˈfaɪərˌwɔr dn/ noun 1. a person having authority in the prevention or extinguishing of , as in towns or camps. /ˈfaɪəˌwɔːdən/ noun 1. (US & Canadian) an officer responsible for fire prevention and control in an area, esp in a forest
- Fire watcher
noun 1. a person who watches for fires, esp those caused by aerial bombardment
[fahyuh r-waw-ter, -wot-er] /ˈfaɪərˌwɔ tər, -ˌwɒt ər/ noun 1. alcoholic drink; liquor. /ˈfaɪəˌwɔːtə/ noun 1. any strong spirit, esp whisky n. “alcoholic liquor,” 1826, American English, supposedly from American Indians, from fire (n.) + water (n.). noun Liquor; booze [1826+; the term is attributed to North American Indians]
[fahyuh r-weed] /ˈfaɪərˌwid/ noun 1. any of various plants appearing in recently burned clearings, as the willow herb, Epilobium angustifolium. /ˈfaɪəˌwiːd/ noun 1. any of various plants that appear as first vegetation in burnt-over areas, esp rosebay willowherb 2. Also called pilewort. a weedy North American plant, Erechtites hieracifolia, having small white or greenish flowers: […]