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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>?淮安防火墻哪家好誠信服務(wù) 浙江越昕供應(yīng)</p><div id="nrp79t7" class="leftbox clearfix"><h1>淮安防火墻哪家好誠信服務(wù) 浙江越昕供應(yīng)</h1><div id="xbpnlzf" class="proBig"><div id="zfvvljz" 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="pvdb9dj" 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="hvbrxzx" 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>淮安防火墻哪家好,防火墻</p><p><span>***更新：</span>2020-12-24 01:16:22</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="drzhpd9" 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="ptzxn7v" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zfndlrh" class="box"><p><p style="text-indent:25px">防火墻是一個由計算機(jī)硬件和軟件組成的系統(tǒng)，淮安防火墻哪家好，部署于網(wǎng)絡(luò)邊界，是內(nèi)部網(wǎng)絡(luò)和外部網(wǎng)絡(luò)之前的連接橋梁，同時對進(jìn)出網(wǎng)絡(luò)邊界的數(shù)據(jù)進(jìn)行保護(hù)，防止惡意入侵、惡意代碼的傳播等，保障內(nèi)部網(wǎng)絡(luò)數(shù)據(jù)的安全。防火墻技術(shù)是建立在網(wǎng)絡(luò)技術(shù)和信息安全技術(shù)基礎(chǔ)上的應(yīng)用性安全技術(shù)，淮安防火墻哪家好，淮安防火墻哪家好，幾乎所有的企業(yè)內(nèi)部網(wǎng)絡(luò)與外部網(wǎng)絡(luò)（如因特網(wǎng)）相連接的邊界設(shè)都會放置防火墻，防火墻能夠起到安全過濾和安全隔離外網(wǎng)攻擊、入侵等有害的網(wǎng)絡(luò)安全信息和行為。防火墻技術(shù)是建立在現(xiàn)代通信網(wǎng)絡(luò)技術(shù)和信息安全技術(shù)基礎(chǔ)上的應(yīng)用性安全技術(shù)。它是一個系統(tǒng)，位于被保護(hù)網(wǎng)絡(luò)和其它網(wǎng)絡(luò)之間，進(jìn)行訪問控制，阻止非法的信息訪問和傳遞。防火墻并非單純的軟件或硬件，它實質(zhì)是軟件和硬件加上一組安全策略的**。防火墻是為加強(qiáng)網(wǎng)絡(luò)安全防護(hù)能力在網(wǎng)絡(luò)中部署的硬件設(shè)備?；窗卜阑饓δ募液?/p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安防火墻哪家好,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762408632813/9346636.png"></div><p style="text-indent:25px">DMZ是防火墻為了實現(xiàn)在保護(hù)內(nèi)部網(wǎng)絡(luò)的安全同時，又可以保證需要放置在外網(wǎng)上的服務(wù)器的安全的一種方法，有了DMZ策略，可以象保護(hù)內(nèi)部網(wǎng)絡(luò)一樣更好地保護(hù)DMZ的主機(jī)。防火墻采用先進(jìn)的蠕蟲檢測及阻斷技術(shù)，保證在網(wǎng)關(guān)位置截獲各種常見的蠕蟲，當(dāng)內(nèi)外網(wǎng)蠕蟲發(fā)作時阻斷蠕蟲發(fā)出的各種病毒或破壞性數(shù)據(jù)包，而正常的網(wǎng)絡(luò)數(shù)據(jù)包不受影響，保證網(wǎng)絡(luò)的正常通暢以及業(yè)務(wù)的正常運(yùn)行?！AT（地址轉(zhuǎn)換）分為正向地址轉(zhuǎn)換和反向地址轉(zhuǎn)換。正向NAT是基于網(wǎng)絡(luò)層的安全應(yīng)用,它通過把內(nèi)部網(wǎng)絡(luò)的信息包內(nèi)的源地址修改為防火墻的外部端口地址傳向外部網(wǎng)絡(luò)，同時隱蔽了內(nèi)部IP地址，節(jié)約合法IP和費(fèi)用。如果需要在內(nèi)網(wǎng)提供可以讓外部訪問的服務(wù)(如WWW、FTP等)，反向NAT可以為服務(wù)器建立有外向內(nèi)的地址轉(zhuǎn)換，外部用戶可以直接訪問該服務(wù)器。這樣內(nèi)部網(wǎng)絡(luò)就可以與外部網(wǎng)絡(luò)雙向通信?；窗卜阑饓δ募液梅阑饓Φ挠布w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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安防火墻哪家好,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762167666016/1260072.png"></div><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。</p><p style="text-indent:25px">防火墻引擎具有自主軟件著作權(quán)，具有國際先進(jìn)的狀態(tài)檢測***濾技術(shù)，實時在線檢測當(dāng)前內(nèi)外網(wǎng)絡(luò)的所有連接狀態(tài)，根據(jù)連接狀態(tài)動態(tài)配置規(guī)則，對異常的連接狀態(tài)進(jìn)行阻斷，實現(xiàn)入侵檢測并及時報警。采用單獨(dú)的創(chuàng)立的內(nèi)核檢測技術(shù)，即基于操作系統(tǒng)內(nèi)核的會話檢測技術(shù)，在操作系統(tǒng)內(nèi)核實現(xiàn)對應(yīng)用層的訪問控制。 Syn代理技術(shù)防止Dos、D-Dos攻擊。對常見病毒端口可以在數(shù)據(jù)鏈路層進(jìn)行主動丟棄，**提高了防火墻的處理性能。支持訪問模式匹配功能，可根據(jù)需要有效地防止木馬軟件以及QQ，BT等軟件。采用安全增強(qiáng)和優(yōu)化的操作系統(tǒng)，內(nèi)置IDS功能，安全級別高，具有強(qiáng)抗攻擊功能。在防范各種拒絕服務(wù)攻擊、端口掃描、IP欺騙等攻擊手段方面表現(xiàn)突出。支持橋模式、VLAN、ADSL撥號等形式接入，可以滿足多種網(wǎng)絡(luò)環(huán)境的需要。通過多重地址轉(zhuǎn)換（MAT）功能，既可以保護(hù)內(nèi)部網(wǎng)絡(luò)服務(wù)器的安全，又可以分散外部服務(wù)到不同的IP地址。通過端口轉(zhuǎn)換，為服務(wù)指定特定的端口，增強(qiáng)了系統(tǒng)的安全性。既可以作為DHCP服務(wù)器又可以充當(dāng)DHCP客戶機(jī)，以實現(xiàn)對動態(tài)IP的支持功能。防火墻具有著防病毒的功能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安防火墻哪家好,防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762792998047/4399731.png"></div><p style="text-indent:25px">Web外發(fā)信息功能可以對用戶在某網(wǎng)站發(fā)布信息或者發(fā)布含有特定關(guān)鍵字信息的行為進(jìn)行控制，并能對發(fā)布行為及信息內(nèi)容進(jìn)行日志記錄。例如，阻止用戶在社區(qū)論壇類網(wǎng)站發(fā)布含有關(guān)鍵字“輿論”的信息，并記錄日志。郵件過濾功能主要用于當(dāng)用戶通過SMTP或者Web郵箱（包括Gmail加密郵箱）發(fā)送郵件時，根據(jù)郵件的發(fā)件人、收件人、內(nèi)容、附件名稱和附件大小對郵件的發(fā)送行為進(jìn)行控制，并能記錄發(fā)送郵件的日志、內(nèi)容和附件。網(wǎng)絡(luò)聊天功能可以控制用戶使用MSN、QQ和雅虎通聊天的行為，并記錄上下線日志。應(yīng)用行為控制功能可以對FTP和HTTP應(yīng)用程序行為進(jìn)行控制和審計。DAS-Gateway-NGFW網(wǎng)絡(luò)行為控制日志信息可以對用戶的上網(wǎng)行為進(jìn)行多方面記錄，包括網(wǎng)頁訪問記錄、外發(fā)郵件行為、內(nèi)容及附件記錄、論壇發(fā)帖記錄、IM行為和聊天內(nèi)容記錄以及FTP/HTTP使用記錄等等。防火墻還支持具有Internet服務(wù)性的企業(yè)內(nèi)部網(wǎng)絡(luò)技術(shù)體系VPN（虛擬**網(wǎng)）?；窗卜阑饓δ募液?/p><p style="text-indent:25px">防火墻可防范病毒、間諜軟件、蠕蟲、木馬等網(wǎng)絡(luò)攻擊?；窗卜阑饓δ募液?/p><p style="text-indent:25px">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。這是防火墻所處網(wǎng)絡(luò)位置特性，同時也是一個前提。因為只有當(dāng)防火墻是內(nèi)、外部網(wǎng)絡(luò)之間通信的通道，才可以多方面、有效地保護(hù)企業(yè)網(wǎng)部網(wǎng)絡(luò)不受侵害。根據(jù)美國**局制定的《信息保障技術(shù)框架》，防火墻適用于用戶網(wǎng)絡(luò)系統(tǒng)的邊界，屬于用戶網(wǎng)絡(luò)邊界的安全保護(hù)設(shè)備。所謂網(wǎng)絡(luò)邊界即是采用不同安全策略的兩個網(wǎng)絡(luò)連接處，比如用戶網(wǎng)絡(luò)和互聯(lián)網(wǎng)之間連接、和其它業(yè)務(wù)往來單位的網(wǎng)絡(luò)連接、用戶內(nèi)部網(wǎng)絡(luò)不同部門之間的連接等。防火墻的目的就是在網(wǎng)絡(luò)連接之間建立一個安全控制點，通過允許、拒絕或重新定向經(jīng)過防火墻的數(shù)據(jù)流，實現(xiàn)對進(jìn)、出內(nèi)部網(wǎng)絡(luò)的服務(wù)和訪問的審計和控制。典型的防火墻體系網(wǎng)絡(luò)結(jié)構(gòu)一端連接企事業(yè)單位內(nèi)部的局域網(wǎng)，而另一端則連接著互聯(lián)網(wǎng)。所有的內(nèi)、外部網(wǎng)絡(luò)之間的通信都要經(jīng)過防火墻，只有符合安全策略的數(shù)據(jù)流才能通過防火墻。淮安防火墻哪家好</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，以科技創(chuàng)新實現(xiàn)***管理的追求。浙江越昕擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊，以高度的專注和執(zhí)著為客戶提供派網(wǎng)，安恒，小魚易連，利譜。浙江越昕不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。浙江越昕創(chuàng)始人林文瀧，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2533293.html</p></div></div></div></div></div><div id="jzxvbxv" class="page-right twoColRt"><div id="vlrxdbx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="b7brzfd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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