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href="http://www.cdcfah.com/cp/second-aqfh_jkcssb/">監(jiān)控傳輸設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-jkcssb_wxcsxt/">無線傳輸系統(tǒng)</a>?菏澤防火墻公司創(chuàng)造輝煌浙江越昕供應(yīng)</p><div id="ngd4onz" class="leftbox clearfix"><h1>菏澤防火墻公司創(chuàng)造輝煌浙江越昕供應(yīng)</h1><div id="32m8nht" class="proBig"><div id="8jvkmol" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762640263672/1746756.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="z2z42eg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762640263672/1746756.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3vhrs8t" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>菏澤防火墻公司,防火墻</p><p><span>***更新：</span>2020-12-19 00:25:16</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="y8nrifc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">浙江越昕信息技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>戴偉強(qiáng)</p><p><span>郵箱: </span>dwq@shpanabit.com</p><p><span>電話: </span>13917159624</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.yuexininfo.com</p><p><span>手機(jī): </span>021-80370549</p><p><span>地址: </span>長經(jīng)濟(jì)技術(shù)開發(fā)區(qū)高鐵路669號國家大學(xué)科技園12號樓228室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ptv43md" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zovfh8x" class="box"><p><p style="text-indent:25px">防止工作人員訪問存在安全隱患的網(wǎng)站，計(jì)算機(jī)網(wǎng)絡(luò)安全問題之中有相當(dāng)一部分是由工作人員進(jìn)入了存在安全隱患的網(wǎng)站所導(dǎo)致的。通過應(yīng)用防火墻技術(shù)能夠?qū)ぷ魅藛T的操作進(jìn)行實(shí)時(shí)監(jiān)控，一旦發(fā)現(xiàn)工作人員即將進(jìn)入存在安全隱患的網(wǎng)站，防火墻就會(huì)立刻發(fā)出警報(bào)，借此有效防止工作人員誤入存在安全隱患的網(wǎng)站，有效提高訪問工作的安全性。控制不安全服務(wù)，計(jì)算機(jī)網(wǎng)絡(luò)在運(yùn)行的過程當(dāng)中會(huì)出現(xiàn)許多不安全服務(wù)，這些不安全服務(wù)會(huì)嚴(yán)重影響到計(jì)算機(jī)網(wǎng)絡(luò)的安全。通過應(yīng)用防火墻技術(shù)能夠有效降低工作人員的實(shí)際操作風(fēng)險(xiǎn)，其能夠?qū)⒉话踩?wù)有效攔截下來，有效防止非法攻擊對計(jì)算機(jī)網(wǎng)絡(luò)安全造成影響，菏澤防火墻公司。此外，通過防火墻技術(shù)還能夠?qū)崿F(xiàn)對計(jì)算機(jī)網(wǎng)絡(luò)之中的各項(xiàng)工作進(jìn)行實(shí)施監(jiān)控，菏澤防火墻公司，菏澤防火墻公司，借此使得計(jì)算機(jī)用戶的各項(xiàng)工作能夠在一個(gè)安全可靠的環(huán)境之下進(jìn)行，有效防止因?yàn)橛?jì)算機(jī)網(wǎng)絡(luò)問題給用戶帶來經(jīng)濟(jì)損失。基于身份和角色的管理（RBNS）讓網(wǎng)絡(luò)配置更加直觀和精細(xì)化。菏澤防火墻公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="菏澤防火墻公司,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762640263672/1746756.png"></div><p style="text-indent:25px">防火墻，它是一種較重要的網(wǎng)絡(luò)防護(hù)設(shè)備。從專業(yè)角度講，防火墻是位于兩個(gè)(或多個(gè))網(wǎng)絡(luò)間，實(shí)施網(wǎng)絡(luò)之間訪問控制的一組組件**。防火墻的本義是指古代構(gòu)筑和使用木制結(jié)構(gòu)房屋的時(shí)候，為防止火災(zāi)的發(fā)生和蔓延，人們將堅(jiān)固的石塊堆砌在房屋周圍作為屏障，這種防護(hù)構(gòu)筑物就被稱之為“防火墻”。其實(shí)與防火墻一起起作用的就是“門”。如果沒有門，各房間的人如何溝通呢，這些房間的人又如何進(jìn)去呢？當(dāng)火災(zāi)發(fā)生時(shí)，這些人又如何逃離現(xiàn)場呢？這個(gè)門就相當(dāng)于我們這里所講的防火墻的“安全策略”，所以在此我們所說的防火墻實(shí)際并不是一堵實(shí)心墻，而是帶有一些小孔的墻。這些小孔就是用來留給那些允許進(jìn)行的通信，在這些小孔中安裝了過濾機(jī)制，也就是上面所介紹的“單向?qū)ㄐ浴?。我們通常所說的網(wǎng)絡(luò)防火墻是借鑒了古代真正用于防火的防火墻的喻義，它指的是隔離在本地網(wǎng)絡(luò)與外界網(wǎng)絡(luò)之間的一道防御系統(tǒng)。防火可以使企業(yè)內(nèi)部局域網(wǎng)（LAN）網(wǎng)絡(luò)與Internet之間或者與其他外部網(wǎng)絡(luò)互相隔離、限制網(wǎng)絡(luò)互訪用來保護(hù)內(nèi)部網(wǎng)絡(luò)。菏澤防火墻公司內(nèi)部網(wǎng)絡(luò)和外部網(wǎng)絡(luò)之間的所有網(wǎng)絡(luò)數(shù)據(jù)流都必須經(jīng)過防火墻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="菏澤防火墻公司,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762792998047/4399731.png"></div><p style="text-indent:25px">靈活的部署模式，下一代防火墻支持三種部署模式，分別是透明模式、路由模式、混合模式。系統(tǒng)會(huì)根據(jù)進(jìn)入設(shè)備的數(shù)據(jù)包，自動(dòng)選擇正確的應(yīng)用模式進(jìn)行處理。路由功能，DAS-Gateway-NGFW支持支持靜態(tài)路由、ISP路由、源路由、源接口路由、策略路由、就近探測路由、動(dòng)態(tài)路由和等價(jià)多徑路由和靜態(tài)組播路由。網(wǎng)絡(luò)地址轉(zhuǎn)化（NAT），DAS-Gateway-NGFW通過創(chuàng)建并執(zhí)行NAT規(guī)則來實(shí)現(xiàn)NAT功能。NAT規(guī)則有兩類，分別為源NAT規(guī)則（SNAT Rule）和目的NAT規(guī)則（DNAT Rule）。SNAT轉(zhuǎn)換源IP地址，從而隱藏內(nèi)部IP地址或者分享有限的IP地址；DNAT轉(zhuǎn)換目的IP地址，通常是將受安全網(wǎng)關(guān)保護(hù)的內(nèi)部服務(wù)器（如WWW服務(wù)器或者SMTP服務(wù)器）的IP地址轉(zhuǎn)換成公網(wǎng)IP地址。</p><p style="text-indent:25px">網(wǎng)絡(luò)策略，影響Firewall系統(tǒng)設(shè)計(jì)、安裝和使用的網(wǎng)絡(luò)策略可分為兩級，高級的網(wǎng)絡(luò)策略定義允許和禁止的服務(wù)以及如何使用服務(wù)，低級的網(wǎng)絡(luò)策略描述Firewall如何限制和過濾在高級策略中定義的服務(wù)。服務(wù)訪問策略，服務(wù)訪問策略集中在Internet訪問服務(wù)以及外部網(wǎng)絡(luò)訪問（如撥入策略、SLIP/PPP連接等）。服務(wù)訪問策略必須是可行的和合理的。可行的策略必須在阻止已知的網(wǎng)絡(luò)風(fēng)險(xiǎn)和提供用戶服務(wù)之間獲得平衡。典型的服務(wù)訪問策略是：允許通過增強(qiáng)認(rèn)證的用戶在必要的情況下從Internet訪問某些內(nèi)部主機(jī)和服務(wù)；允許內(nèi)部用戶訪問指定的Internet主機(jī)和服務(wù)。防火墻對流經(jīng)它的網(wǎng)絡(luò)通信進(jìn)行掃描。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="菏澤防火墻公司,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762900136719/4593480.png"></div><p style="text-indent:25px">高可靠性（High Availability），簡稱為HA，能夠在通信線路或設(shè)備產(chǎn)生故障時(shí)提供備用方案，從而保證數(shù)據(jù)通信的暢通，有效增強(qiáng)網(wǎng)絡(luò)的可靠性。DAS-Gateway-NGFW支持HA的2種工作模式：Active-Passive（A/P）模式和Active-Active（A/A）模式。DAS-Gateway-NGFW的統(tǒng)計(jì)功能包括基于接口的統(tǒng)計(jì)功能、基于地址的統(tǒng)計(jì)功能、基于應(yīng)用的統(tǒng)計(jì)功能以及統(tǒng)計(jì)集功能。基于接口的統(tǒng)計(jì)功能：統(tǒng)計(jì)流經(jīng)特定接口的數(shù)據(jù)量、數(shù)據(jù)包?；诘刂返慕y(tǒng)計(jì)功能：統(tǒng)計(jì)以特定地址為源/目的地址的數(shù)據(jù)量、數(shù)據(jù)包。基于服務(wù)的統(tǒng)計(jì)功能：統(tǒng)計(jì)屬于特定服務(wù)的數(shù)據(jù)量、數(shù)據(jù)包。統(tǒng)計(jì)集：統(tǒng)計(jì)流經(jīng)安全網(wǎng)關(guān)的數(shù)據(jù)量。日志管理功能，DAS-Gateway-NGFW擁有日志管理功能。DAS-Gateway-NGFW的日志功能記錄并輸出安全網(wǎng)關(guān)的各種日志信息，分別是事件、告警、安全、配置、網(wǎng)絡(luò)、流量和調(diào)試信息。IPV6功能，DAS-Gateway-NGFW支持互聯(lián)網(wǎng)協(xié)議版本6，即IPv6（Internet Protocol Version 6），DAS-Gateway-NGFW為IPv4和IPv6同時(shí)支持的雙棧系統(tǒng)固件，同時(shí)支持隧道技術(shù)（當(dāng)前版本支持手工IPv6隧道）實(shí)現(xiàn)IPv6的通信。防火墻具有著防病毒的功能。菏澤防火墻公司</p><p style="text-indent:25px">網(wǎng)絡(luò)防火墻、主機(jī)防火墻和管理中心是分布式防火墻的構(gòu)成組件。菏澤防火墻公司</p><p style="text-indent:25px">數(shù)據(jù)***濾技術(shù)是在網(wǎng)絡(luò)層對數(shù)據(jù)包進(jìn)行選擇，選擇的依據(jù)是系統(tǒng)內(nèi)設(shè)置的過濾邏輯，被稱為訪問控制表。通過檢查數(shù)據(jù)流中每個(gè)數(shù)據(jù)包的源地址、目的地址、所用的端口號、協(xié)議狀態(tài)等因素，或它們的組合來確定是否允許該數(shù)據(jù)包通過。數(shù)據(jù)***濾防火墻邏輯簡單，價(jià)格便宜，易于安裝和使用，網(wǎng)絡(luò)性能和透明性好，它通常安裝在路由器上。路由器是內(nèi)部網(wǎng)絡(luò)與Internet連接必不可少的設(shè)備，因此在原有網(wǎng)絡(luò)上增加這樣的防火墻幾乎不需要任何額外的費(fèi)用。數(shù)據(jù)***濾防火墻的缺點(diǎn)有二：一是非法訪問一旦突破防火墻，即可對主機(jī)上的軟件和配置漏洞進(jìn)行攻擊；二是數(shù)據(jù)包的源地址、目的地址以及IP的端口號都在數(shù)據(jù)包的頭部，很有可能被**或假冒。菏澤防火墻公司</p><p style="text-indent:25px">浙江越昕信息技術(shù)有限公司致力于通信產(chǎn)品，是一家服務(wù)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下派網(wǎng)，安恒，小魚易連，利譜深受客戶的喜愛。公司從事通信產(chǎn)品多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: 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