浙江11选5开奖结果查询

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Wifi安全问题和解决方案

2019-10-24

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浙江11选5开奖结果查询  WOMENZONGSHILIANJIEDAOHULIANWANG。WOMENSHIYONGSHOUJI、PINGBANDIANNAO、BIJIBENDIANNAO、YOUXIXITONGHEQICHELAIZHEIYANGZUO。JINGUANQIZHONGYIXIESHIYONGYOUXIAN,QITAYIXIESHIYONGZHUANYOUDETONGXINFANGFA(JINGUANSHIWUXIANDE),DANWOMENJIANGZHONGDIANGUANZHUWi-FiHEWi-FiANQUANWENTI。WORENWEIZHEISHIQUEFARENSHIDEYAODIAN,WOXIWANGSHIYONGCIBOKELAIJIAOYUGENGDUODERENYOUGUANWi-FiANQUANWENTI。

  什么是Wi-Fi?

  Wi-Fi浙江11选5开奖结果查询是Hi-Fi(高保真)的一种播放方式,它是声音的质量。虽然它不是直接的双关语(所有无线都是纯粹的无线或有线;没有无线的质量),但它是无线的,并且使用射频(RF)而不是电线(Copper)或光纤(Light)。国际组织电气和电子工程师协会(IEEE;通常称为I-TripleE)与各种标准委员会中的许多其他组织一起维护此标准。LAN /MAN标准委员会(802)对此进行监督,并监督其他一些事务,包括:以太网、令牌环和蓝牙。在802.11(无线LAN的IEEE工作组)内,随着时间的推移,随着使用RF广播数据的能力的发展,出现了新的标准。从技术上讲,802.11a在标准方面与802.11g完全不同,它们是可互操作的标准。802.11g是对802.11a和802.11b的修订和合并,它被802.11n和更高版本的802.11ac取代。有一个802.11ad,但是它在不同的频率范围内,并且不太常见。

  YIXIASHISUISHIJIANBIANHUADEGEZHONG802.11XIEYIJIQIZUIDASUDUHEPINLVDELIEBIAO。ZHUYI:ZUIDASUDUKENENGHUIYINSHISHI、DAIKUAN、TONGDAODAXIAOHEHUANJINGYINSUERYI。YIXIAZHIYUBIAOZHUNDEEDINGGUIGEYOUGUAN。

  802.11a

  PINLV:5.0 GHz

  DIANXINGZUIGAOSUDU:54 Mbps

  802.11b

  PINLV:2.4 GHz

浙江11选5开奖结果查询  DIANXINGZUIGAOSUDU:11 Mbps

  802.11g

  PINLV:2.4 GHz

  DIANXINGZUIGAOSUDU:54 Mbps

  802.11n

浙江11选5开奖结果查询  PINLV:2.4 GHzHUO5.0 GHz

  DIANXINGZUIGAOSUDU:600 Mbps

  802.11ac

  PINLV:5.0 GHz

浙江11选5开奖结果查询  DIANXINGZUIGAOSUDU:6 Gbps

  Wi-Fi如何运作?

  ZAICHUANTONGHEZUIJIANDANDEYIYISHANG,TASHISHIYONGSHEPINZAIWANGLUOSHANG(WUDIANXIAN)JINXINGTONGXINDEYIZHONGFANGSHI。SHIYONGSHANGMIANTAOLUNDE802.11BIAOZHUNJIANRONGTIANXIANHELUYOUQICHUANDIHEBIANMA/JIEMASHUJU。WUXIANDIANCHULISHUJUDEFANWEIWEIQIANHEZI(KHz)HEZHAOHEZI(MHz),ERWi-FiCHULISHUJUDEFANWEIWEIQIANZHAOHEZI(GHz),JI2.4HE5GHzFANWEI(JIEZHIMUQIAN)。YINCI,YUYOUXIANWANGLUOXIANGFAN,RENHERENDOUKEYI“CHUMO”NINDETONGXINMEITI。ZHEIKENENGHUIDAOZHIYIXIEANQUANWENTI。

  在讨论Wi-Fi攻击之前

浙江11选5开奖结果查询  ZAITANLUNZHENDUIWi-FiDEJISHUGONGJIZHIQIAN,XIANGXIAOCHUYIXIESHENHUA,BINGTIGAODUIWi-FiANQUANWENTIDERENSHI,ZHEIXIEANQUANWENTIBAOKUOKAIFANGSHI,GONGGONGHEKEHUWi-FiWANGLUO。TAMENSUOYOURENSUODUYOUDEYIDIANSHI,TAMENZAIDADUOSHUQINGKUANGXIADOUBUANQUAN。XIANGQITARENHEDONGXIYIYANG,YEYOULIWAI,DANSHIZHEIPIANWENZHANGCHULIDESHIDADUOSHUFULIWAI。

  企业中无线网络的安全问题

  XIANGFAN,ZAISHIYONGKEHUWANGLUOSHI,NINZAILIANGGEFANGMIANFANGQILEANQUANXING:NINLIANJIEDAODEWANGLUOKENENGXUYAOYEKENENGBUXUYAORENHERENDOUKEYIHUOQUDEMIMA。NINWUFAQUEDINGWANGLUODEANQUANXING,SHENZHIWUFAYANZHENGBINGQUERENTAQUESHISHIWANGLUO,ERBUSHI“XIEESHUANGZI”。NINWUFA*QUEBAOMEIYOURENKEYILANJIEHEDUQUHE/HUOXIUGAININDESHUJU。CIWAI,SUIRANBUWEIXIANDANRENGHENFANREN,DANSHISHANGDIANHAIKEYIJIANSHININDELIANJIE,BINGGENJUNINDANJI“QUEDING”YIJINXINGLIANJIEDEJINGMEITUPIAN,TAMENKEYICHAXUNNINDESHEBEIBINGHUOQUYOUGUANNINDESHUJU。CISHUJUKENENGSHININYIANZHUANGDEYINGYONG,WEIZHISHUJUDENG。ANZHUANGDEYINGYONGCHENGXU(WalmartSavings Catcher,Macy's AppDENG)YESHIRUCI。ZHEIXIECUNCHUYEMEIYOUFALVYIWUHUOZERENLAIBAOHUNINDESHEBEIHUOWANGLUOSHANGDESHUJU。DAODEYIWUHEZERENZEBUTONG。

  公共Wi-Fi安全问题

  RUGUOYOUDEHUA,GONGGONGWi-FiWANGLUO(WEICI,JUYOUYUGONGXIANGMIYAODEWANGLUO)BINGBUANQUANDEDUO。JINGUANTAMENDEYITUKENENGYULINGSHOUSHANGDIANBUTONG,DANTAMENDUININDESHEBEIHUOSHUJUDEBAOHUMEIYOURENHEBAOZHENGHUOFALVYIWU。TONGYANG,NINWUFA*QUEBAOMEIYOURENKEYILANJIEHEDUQUHE/HUOXIUGAININDESHUJU。NINYINGGAIZHIYIWEISHENMEGAIWANGLUOCUNZAI,TEBIESHIRUGUOLIANJIESHIMIANFEIDE。TONGGUOSHUJUWAJUE(LIRUSHANGMIANDELINGSHOUDIAN)HUOTONGGUOGUANGGAO,NINKENENGSHI“CHANPIN”。

标签WIFI模块

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