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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_aqfh/">安全、防護(hù)</a>?<a 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>?南通防火墻應(yīng)用領(lǐng)域誠信經(jīng)營浙江越昕供應(yīng)</p><div id="be8fmgi" class="leftbox clearfix"><h1>南通防火墻應(yīng)用領(lǐng)域誠信經(jīng)營浙江越昕供應(yīng)</h1><div id="z8c3t2n" class="proBig"><div id="fo9np43" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762408632813/9346636.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xuetvzg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762408632813/9346636.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="e3ot8og" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>南通防火墻應(yīng)用領(lǐng)域,防火墻</p><p><span>***更新：</span>2021-01-21 01:12:50</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="tm4nu4t" 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="pdxelfw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="v2uwi9c" class="box"><p><p style="text-indent:25px">代理服務(wù)也稱鏈路級網(wǎng)關(guān)或TCP通道，也有人將它歸于應(yīng)用級網(wǎng)關(guān)一類，南通防火墻應(yīng)用領(lǐng)域。它是針對數(shù)據(jù)***濾和應(yīng)用網(wǎng)關(guān)技術(shù)存在的缺點(diǎn)而引入的防火墻技術(shù)，其特點(diǎn)是將所有跨越防火墻的網(wǎng)絡(luò)通信鏈路分為兩段。防火墻內(nèi)外計算機(jī)系統(tǒng)間應(yīng)用層的" 鏈接"，由兩個終止代理服務(wù)器上的" 鏈接"來實(shí)現(xiàn)，外部計算機(jī)的網(wǎng)絡(luò)鏈路只能到達(dá)代理服務(wù)器，從而起到了隔離防火墻內(nèi)外計算機(jī)系統(tǒng)的作用。此外，代理服務(wù)也對過往的數(shù)據(jù)包進(jìn)行分析，南通防火墻應(yīng)用領(lǐng)域、注冊登記，形成報告，同時當(dāng)發(fā)現(xiàn)被攻擊跡象時會向網(wǎng)絡(luò)管理員發(fā)出警報，南通防火墻應(yīng)用領(lǐng)域，并保留攻擊痕跡。通過防火墻技術(shù)還能夠?qū)崿F(xiàn)對計算機(jī)網(wǎng)絡(luò)之中的各項工作進(jìn)行實(shí)施監(jiān)控。南通防火墻應(yīng)用領(lǐng)域</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通防火墻應(yīng)用領(lǐng)域,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762408632813/9346636.png"></div><p style="text-indent:25px">強(qiáng)化網(wǎng)絡(luò)安全策略，通過以防火墻為中心的安全方案配置，能將所有安全軟件（如口令、加密、身份認(rèn)證、審計等）配置在防火墻上。與將網(wǎng)絡(luò)安全問題分散到各個主機(jī)上相比，防火墻的集中安全管理更經(jīng)濟(jì)。例如在網(wǎng)絡(luò)訪問時，一次一密口令系統(tǒng)和其它的身份認(rèn)證系統(tǒng)完全可以不必分散在各個主機(jī)上，而集中在防火墻一身上。監(jiān)控審計，如果所有的訪問都經(jīng)過防火墻，那么，防火墻就能記錄下這些訪問并作出日志記錄，同時也能提供網(wǎng)絡(luò)使用情況的統(tǒng)計數(shù)據(jù)。當(dāng)發(fā)生可疑動作時，防火墻能進(jìn)行適當(dāng)?shù)膱缶?，并提供網(wǎng)絡(luò)是否受到監(jiān)測和攻擊的詳細(xì)信息。另外，收集一個網(wǎng)絡(luò)的使用和誤用情況也是非常重要的。首先的理由是可以清楚防火墻是否能夠抵擋攻擊者的探測和攻擊，并且清楚防火墻的控制是否充足。而網(wǎng)絡(luò)使用統(tǒng)計對網(wǎng)絡(luò)需求分析和威脅分析等而言也是非常重要的。南通防火墻應(yīng)用領(lǐng)域防火墻采用先進(jìn)的蠕蟲檢測及阻斷技術(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通防火墻應(yīng)用領(lǐng)域,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762835761719/9530143.png"></div><p style="text-indent:25px">防火墻的硬件體系結(jié)構(gòu)曾經(jīng)歷過通用CPU架構(gòu)、ASIC架構(gòu)和網(wǎng)絡(luò)處理器架構(gòu)，他們各自的特點(diǎn)分別如下：通用CPU架構(gòu)：通用CPU架構(gòu)較常見的是基于Intel X86架構(gòu)的防火墻，在百兆防火墻中Intel X86架構(gòu)的硬件以其高靈活性和擴(kuò)展性一直受到防火墻廠商的喜愛；由于采用了PCI總線接口，Intel X86架構(gòu)的硬件雖然理論上能達(dá)到2Gbps的吞吐量甚至更高，但是在實(shí)際應(yīng)用中，尤其是在小包情況下，遠(yuǎn)遠(yuǎn)達(dá)不到標(biāo)稱性能，通用CPU的處理能力也很有限。國內(nèi)安全設(shè)備主要采用的就是基于X86的通用CPU架構(gòu)。ASIC架構(gòu)：ASIC（Application Specific Integrated Circuit，專門用集成電路）技術(shù)是國外網(wǎng)絡(luò)設(shè)備幾年前普遍采用的技術(shù)。由于采用了硬件轉(zhuǎn)發(fā)模式、多總線技術(shù)、數(shù)據(jù)層面與控制層面分離等技術(shù)， ASIC架構(gòu)防火墻解決了帶寬容量和性能不足的問題，穩(wěn)定性也得到了很好的保證。 </p><p style="text-indent:25px">根據(jù)網(wǎng)絡(luò)系統(tǒng)的安全需要，可以在如下位置部署防火墻：局域網(wǎng)內(nèi)的VLAN之間控制信息流向時；Intranet與Internet之間連接時(企業(yè)單位與外網(wǎng)連接時的應(yīng)用網(wǎng)關(guān))；在廣域網(wǎng)系統(tǒng)中，由于安全的需要，總部的局域網(wǎng)可以將各分支機(jī)構(gòu)的局域網(wǎng)看成不安全的系統(tǒng)，（通過公網(wǎng)ChinaPac，ChinaDDN，F(xiàn)rame Relay等連接）在總部的局域網(wǎng)和各分支機(jī)構(gòu)連接時采用防火墻隔離，并利用VPN構(gòu)成虛擬專網(wǎng)；總部的局域網(wǎng)和分支機(jī)構(gòu)的局域網(wǎng)是通過Internet連接，需要各自安裝防火墻，并利用NetScreen的VPN組成虛擬專網(wǎng)；在遠(yuǎn)程用戶撥號訪問時，加入虛擬專網(wǎng)；ISP可利用NetScreen的負(fù)載平衡功能在公共訪問服務(wù)器和客戶端間加入防火墻進(jìn)行負(fù)載分擔(dān)、存取控制、用戶認(rèn)證、流量控制、日志紀(jì)錄等功能；兩網(wǎng)對接時，可利用NetScreen硬件防火墻作為網(wǎng)關(guān)設(shè)備實(shí)現(xiàn)地址轉(zhuǎn)換(NAT)，地址映射（MAP），網(wǎng)絡(luò)隔離（DMZ）, 存取安全控制，消除傳統(tǒng)軟件防火墻的瓶頸問題。一個防火墻（作為阻塞點(diǎn)、控制點(diǎn)）能極大地提高一個內(nèi)部網(wǎng)絡(luò)的安全性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通防火墻應(yīng)用領(lǐng)域,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762253925782/5436993.png"></div><p style="text-indent:25px">隨著技術(shù)的發(fā)展，防火墻和路由器很多功能已經(jīng)重疊，比如：路由功能（靜態(tài)路由/RIP/OSPF/BGP等）、NAT、ACL、DHCP等等。本質(zhì)是安全設(shè)備，雖然集成了很多路由功能，但很多路由器高級功能它也無能為力，比如MPLS V.P.N、MPLS TE。多業(yè)務(wù)接入，比如運(yùn)營商甩過來的是ATM、POS線路?，F(xiàn)在路由器也集成了部分防火墻的基礎(chǔ)安全功能，但重點(diǎn)還是在路由，MPLS V.P.N/TE、廣域網(wǎng)優(yōu)化等還是防火墻無可替代的功能，而且表項更加豐富，能支持超大規(guī)模網(wǎng)絡(luò)。一般中小型企業(yè)、相關(guān)部門相關(guān)業(yè)務(wù)外網(wǎng)、中小學(xué)等網(wǎng)絡(luò)出口都會選擇防火墻，簡單省事，性能要求不高，買一臺設(shè)備啥功能都有（現(xiàn)在主流都是下一代防火墻，集成防火墻、行為管理、負(fù)載均衡、流量控制、*等各種功能）。防火墻是現(xiàn)代網(wǎng)絡(luò)安全防護(hù)技術(shù)中的重要構(gòu)成內(nèi)容。南通防火墻應(yīng)用領(lǐng)域</p><p style="text-indent:25px">防火墻可以確保計算機(jī)網(wǎng)絡(luò)運(yùn)行的安全性，保障用戶資料與信息的完整性。南通防火墻應(yīng)用領(lǐng)域</p><p style="text-indent:25px">防火墻自身應(yīng)具有非常強(qiáng)的抗攻擊：這是防火墻之所以能擔(dān)當(dāng)企業(yè)內(nèi)部網(wǎng)絡(luò)安全防護(hù)重任的先決條件。防火墻處于網(wǎng)絡(luò)邊緣，它就像一個邊界衛(wèi)士一樣，每時每刻都要面對的入侵，這樣就要求防火墻自身要具有非常強(qiáng)的抗擊入侵本領(lǐng)。它之所以具有這么強(qiáng)的本領(lǐng)防火墻操作系統(tǒng)本身是關(guān)鍵，只有自身具有完整信任關(guān)系的操作系統(tǒng)才可以談?wù)撓到y(tǒng)的安全性。其次就是防火墻自身具有非常低的服務(wù)功能，除了專門的防火墻嵌入系統(tǒng)外，再沒有其它應(yīng)用程序在防火墻上運(yùn)行。當(dāng)然這些安全性也只能說是相對的。國內(nèi)的防火墻幾乎被國外的品牌占據(jù)了一半的市場，國外品牌的優(yōu)勢主要是在技術(shù)和**度上比國內(nèi)產(chǎn)品高。而國內(nèi)防火墻廠商對國內(nèi)用戶了解更加透徹，價格上也更具有優(yōu)勢。南通防火墻應(yīng)用領(lǐng)域</p></p><br /><p>文章來源地址: 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