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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="8yxxxbq" class="twoCol"><div id="bhcnmo7" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a 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>?安慶防火墻系統(tǒng)服務(wù) 值得信賴浙江越昕供應(yīng)</p><div id="8sr2orj" class="leftbox clearfix"><h1>安慶防火墻系統(tǒng)服務(wù) 值得信賴浙江越昕供應(yīng)</h1><div id="qbql346" class="proBig"><div id="cmm5hn2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762835761719/9530143.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="inmqk86" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yuexin/637369762835761719/9530143.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pkpjy6h" 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>安慶防火墻系統(tǒng)服務(wù),防火墻</p><p><span>***更新：</span>2021-01-05 06:14:01</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="ltk8s8r" 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(hào)國家大學(xué)科技園12號(hào)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="zv7mibo" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="z8eiil8" class="box"><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(shí)；Intranet與Internet之間連接時(shí)(企業(yè)單位與外網(wǎng)連接時(shí)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(shí)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(hào)訪問時(shí)，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，安慶防火墻系統(tǒng)服務(wù)、日志紀(jì)錄等功能；兩網(wǎng)對(duì)接時(shí)，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)，安慶防火墻系統(tǒng)服務(wù)，安慶防火墻系統(tǒng)服務(wù)，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。防火墻是在兩個(gè)網(wǎng)絡(luò)通訊時(shí)執(zhí)行的一種訪問控制尺度。安慶防火墻系統(tǒng)服務(wù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安慶防火墻系統(tǒng)服務(wù),防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762835761719/9530143.png"></div><p style="text-indent:25px">數(shù)據(jù)***濾技術(shù)是在網(wǎng)絡(luò)層對(duì)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(hào)、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(jiǎn)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(duì)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(hào)都在數(shù)據(jù)包的頭部，很有可能被**或假冒。安慶防火墻系統(tǒng)服務(wù)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="安慶防火墻系統(tǒng)服務(wù),防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762563427735/694764.png"></div><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(gè)邊界衛(wèi)士一樣，每時(shí)每刻都要面對(duì)***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?zèng)]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(duì)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(chǎng)，國外品牌的優(yōu)勢(shì)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(duì)國內(nèi)用戶了解更加透徹，價(jià)格上也更具有優(yōu)勢(shì)。防火墻產(chǎn)品中，國外主流廠商為思科（Cisco）、CheckPoint、NetScreen等，國內(nèi)主流廠商為東軟、天融信、聯(lián)想、方正等，它們都提供不同級(jí)別的防火墻產(chǎn)品。</p><p style="text-indent:25px">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，有多種部署方式，常見的有橋模式、網(wǎng)關(guān)模式和NAT模式等。橋模式也可叫作透明模式。較簡(jiǎn)單的網(wǎng)絡(luò)由客戶端和服務(wù)器組成，客戶端和服務(wù)器處于同一網(wǎng)段。為了安全方面的考慮，在客戶端和服務(wù)器之間增加了防火墻設(shè)備，對(duì)經(jīng)過的流量進(jìn)行安全控制。正常的客戶端請(qǐng)求通過防火墻送達(dá)服務(wù)器，服務(wù)器將響應(yīng)返回給客戶端，用戶不會(huì)感覺到中間設(shè)備的存在。工作在橋模式下的防火墻沒有IP地址，當(dāng)對(duì)網(wǎng)絡(luò)進(jìn)行擴(kuò)容時(shí)無需對(duì)網(wǎng)絡(luò)地址進(jìn)行重新規(guī)劃，但**了路由、VPN等功能。防火墻技術(shù)的功能主要在于及時(shí)發(fā)現(xiàn)并處理計(jì)算機(jī)網(wǎng)絡(luò)運(yùn)行時(shí)可能存在的安全風(fēng)險(xiǎn)、數(shù)據(jù)傳輸?shù)葐栴}。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安慶防火墻系統(tǒng)服務(wù),防火墻" src="https://tyunfile.71360.com/UploadFile/yuexin/637369762142734375/7937740.png"></div><p style="text-indent:25px">過濾型防火墻是在網(wǎng)絡(luò)層與傳輸層中，可以基于數(shù)據(jù)源頭的地址以及協(xié)議類型等標(biāo)志特征進(jìn)行分析，確定是否可以通過。在符合防火墻規(guī)定標(biāo)準(zhǔn)之下，滿足安全性能以及類型才可以進(jìn)行信息的傳遞，而一些不安全的因素則會(huì)被防火墻過濾、阻擋。應(yīng)用代理防火墻主要的工作范圍就是在OSI的較高層，位于應(yīng)用層之上。其主要的特征是可以完全隔離網(wǎng)絡(luò)通信流，通過特定的代理程序就可以實(shí)現(xiàn)對(duì)應(yīng)用層的監(jiān)督與控制。這兩種防火墻是應(yīng)用較為普遍的防火墻，其他一些防火墻應(yīng)用效果也較為明顯，在實(shí)際應(yīng)用中要綜合具體的需求以及狀況合理的選擇防火墻的類型，這樣才可以有效地避免防火墻的外部侵?jǐn)_等問題的出現(xiàn)。防火墻具有著防病毒的功能。安慶防火墻系統(tǒng)服務(wù)</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。安慶防火墻系統(tǒng)服務(wù)</p><p style="text-indent:25px">ASIC技術(shù)的性能優(yōu)勢(shì)主要體現(xiàn)網(wǎng)絡(luò)層轉(zhuǎn)發(fā)上，而對(duì)于需要強(qiáng)大計(jì)算能力的應(yīng)用層數(shù)據(jù)的處理則不占優(yōu)勢(shì)，而且面對(duì)頻繁變異的應(yīng)用安全問題，其靈活性和擴(kuò)展性也難以滿足要求。由于該技術(shù)有較高的技術(shù)和資金門檻，主要是國內(nèi)外**廠商在采用，國外主要**廠商是Netscreen，國內(nèi)主要**廠商為天融信。網(wǎng)絡(luò)處理器架構(gòu)：由于網(wǎng)絡(luò)處理器所使用的微碼編寫有一定技術(shù)難度，難以實(shí)現(xiàn)產(chǎn)品的較優(yōu)性能，因此網(wǎng)絡(luò)處理器架構(gòu)的防火墻產(chǎn)品難以占有大量的市場(chǎng)份額。隨著網(wǎng)絡(luò)處理器的主要供應(yīng)商Intel、Broadcom、IBM等相繼出售其網(wǎng)絡(luò)處理器業(yè)務(wù)，該技術(shù)在網(wǎng)絡(luò)安全產(chǎn)品中的應(yīng)用已經(jīng)走到了盡頭。安慶防火墻系統(tǒng)服務(wù)</p><p style="text-indent:25px">浙江越昕信息技術(shù)有限公司是一家從事計(jì)算機(jī)軟硬件技術(shù)領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)咨詢、技術(shù)服務(wù)，計(jì)算機(jī)網(wǎng)絡(luò)集成，辦公設(shè)備維修，電子產(chǎn)品、電子元器件、數(shù)碼產(chǎn)品、計(jì)算機(jī)、軟件及輔助設(shè)備、通訊器材、通信設(shè)備及相關(guān)產(chǎn)品的銷售。（依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)）的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。公司自創(chuàng)立以來，投身于派網(wǎng)，安恒，小魚易連，利譜，是通信產(chǎn)品的主力軍。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(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。浙江越昕始終關(guān)注通信產(chǎn)品市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2711380.html</p></div></div></div></div></div><div id="27spytr" class="page-right twoColRt"><div id="78yhmkd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="l2t36jx" class="recomPic likePro"><a 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