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<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6260409edaa0590bf786047c/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="ls1">H<span class="ls2">TT<span class="ls3">P <span class="_ _0"> </span><span class="ff2 sc1 ls4">代理服务器在</span></span></span></span> <span class="ls5">W<span class="ls1">i<span class="ls6">n<span class="ls7">d<span class="ls8">o<span class="ls9">ws<span class="_ _1"> </span></span><span class="ff2 sc1">下<span class="ls4">的实现</span></span><span class="ls4"> </span></span></span></span></span></span></div><div class="t m0 x2 h3 y2 ff3 fs0 fc0 sc0 ls4 ws0"> </div><div class="t m0 x2 h3 y3 ff4 fs0 fc0 sc0 ls4 ws0">摘要:本<span class="ls5">文</span>介绍了<span class="ls5">代</span>理服务<span class="ls5">器</span>的优点,<span class="ff3 lsa">H<span class="lsb">TT<span class="lsc">P <span class="_ _1"> </span></span></span></span>代理服务器在<span class="ff3 ls0"> <span class="lsd">W<span class="ls1">i<span class="ls5">nd<span class="ls4">o<span class="lse">ws<span class="_ _1"> </span></span></span></span></span></span></span>下的实现,最后</div><div class="t m0 x3 h3 y4 ff4 fs0 fc0 sc0 ls4 ws0">简单讨论<span class="ls5">实</span>现代理<span class="ls5">服</span>务器的<span class="ls5">意</span>义。<span class="ff3"> </span></div><div class="t m0 x3 h3 y5 ff3 fs0 fc0 sc0 lsf ws0"> </div><div class="t m0 x3 h3 y6 ff3 fs0 fc0 sc0 lsf ws0"> <span class="ff4 ls4">关键字:<span class="ff3"> </span></span></div><div class="t m0 x3 h3 y7 ff3 fs0 fc0 sc0 ls4 ws0"> <span class="_ _2"> </span><span class="ff4">代理服务器</span><span class="ls10">(<span class="ls5">p</span>r<span class="ls5">o</span></span>x<span class="ls5">y)<span class="ff4">、<span class="_ _3"></span></span><span class="lsa">H<span class="ls11">T<span class="lsb">TP<span class="ff4">、<span class="_ _3"></span></span><span class="lsd">W<span class="ls1">i</span></span></span></span></span></span>ndo<span class="lse">ws</span><span class="ff4">、线程</span> </div><div class="t m0 x3 h3 y8 ff3 fs0 fc0 sc0 ls4 ws0"> </div><div class="t m0 x2 h3 y9 ff4 fs0 fc0 sc0 ls4 ws0">普通的因<span class="ls5">特</span>网访问<span class="ls5">是</span>一个典<span class="ls5">型</span>的客户机<span class="ff3">/</span><span class="ls5">服</span>务<span class="ls5">器(<span class="ff3 ls2">C<span class="ls1">li<span class="lsd">e<span class="ls5">n</span></span>t<span class="ls12">/<span class="ls7">Se<span class="ls10">r<span class="ls4">v<span class="ls13">er<span class="_ _3"></span></span></span></span></span></span></span></span>)</span>结构<span class="ls5">:用</span>户本地<span class="ls5">计</span>算机</div><div class="t m0 x3 h3 ya ff4 fs0 fc0 sc0 ls4 ws0">上的客户<span class="ls5">端</span>程序如<span class="ls5">浏</span>览器发<span class="ls5">生</span>请求,<span class="ls5">远端<span class="_ _4"> </span><span class="ff3 ls14">W<span class="ls13">WW<span class="_ _4"> </span></span></span>服</span>务器程序<span class="ls5">响</span>应请求<span class="ls5">并</span>提供相<span class="ls5">应</span>的数据。</div><div class="t m0 x3 h3 yb ff4 fs0 fc0 sc0 ls4 ws0">而代理(<span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy</span></span></span></span>)处于客户机<span class="ls5">和</span>服务器<span class="ls5">之</span>间,对<span class="ls5">于</span>服<span class="ls5">务</span>器来说,<span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_ _5"> </span></span></span></span></span>是客户机,提<span class="ls5">出</span>请求;</div><div class="t m0 x3 h3 yc ff4 fs0 fc0 sc0 ls4 ws0">对于客户<span class="ls5">机</span>来说,<span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span></span></span></span></span>是服务器,它<span class="ls5">接</span>受请求<span class="ls5">并提</span>供数据。<span class="ff3"> </span></div><div class="t m0 x3 h3 yd ff3 fs0 fc0 sc0 ls4 ws0"> </div><div class="t m0 x3 h3 ye ff3 fs0 fc0 sc0 ls4 ws0"> </div><div class="t m0 x4 h3 yf ff4 fs0 fc0 sc0 ls4 ws0">代理服务<span class="ls5">器</span>模型<span class="ff3"> </span></div><div class="t m0 x3 h3 y10 ff3 fs0 fc0 sc0 lsf ws0"> <span class="ls15"> </span> </div><div class="t m0 x2 h3 y11 ff4 fs0 fc0 sc0 ls4 ws0">代理服务<span class="ls5">器</span>具有以下<span class="ff5">几</span>个的<span class="ls5">优</span>点:<span class="ff3"> </span></div><div class="t m0 x3 h3 y12 ff3 fs0 fc0 sc0 ls4 ws0">(<span class="ff4">一</span>)<span class="ff5 ls5">安<span class="ls4">全屏障</span></span> </div><div class="t m0 x3 h3 y13 ff3 fs0 fc0 sc0 ls0 ws0"> <span class="ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span><span class="ff4">是<span class="ff5">建立</span>在应用<span class="ff5">层</span>的<span class="ff5">软件</span>,<span class="ls5">它</span>的最<span class="ff5">主</span>要<span class="_ _6"></span><span class="ff5">功能<span class="ff4">是</span>作为<span class="_ _7"> </span><span class="ff3 ls16">f<span class="ls1">i<span class="ls10">r<span class="ls13">e<span class="lse">w<span class="ls14">a</span></span></span></span>ll<span class="_ _7"> </span><span class="ff4">的<span class="_ _3"></span><span class="ff5">重</span>要</span></span></span><span class="ls5">组</span>成部分<span class="ff3">,</span>为<span class="ff4">它</span>保</span></span></span></span></span></span></div><div class="t m0 x3 h3 y14 ff5 fs0 fc0 sc0 ls4 ws0">护<span class="ff4">的</span>主<span class="ff4">机</span><span class="ls5">起到<span class="ff4">了<span class="_ _3"></span></span></span>安<span class="ls5">全</span>屏障<span class="ff4">的</span>作<span class="ff4">用。<span class="_ _6"></span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span><span class="ff5">起到流量<span class="ls5">控制<span class="ff4">,</span></span>包过滤<span class="ff4 ls17">,<span class="ls4">访问</span></span>控制</span></span><span class="ff4">,和<span class="ff5 ls4">操<span class="ls5">作</span>系统<span class="ff4">用</span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y15 ff4 fs0 fc0 sc0 ls4 ws0">户<span class="ff5">集成等作</span>用,<span class="_ _8"></span><span class="ff5">所<span class="ff4">以<span class="_ _5"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span></span></span></span></span></span>可<span class="ff4">以</span>成为<span class="ff4">简单网</span><span class="ls5">络管<span class="ff4">理<span class="_ _3"></span></span>软件<span class="_ _3"></span><span class="ff4">的<span class="_ _3"></span></span></span>核心<span class="ls5">部分<span class="ff4">,<span class="_ _9"></span><span class="ff5">同时<span class="ff4">它<span class="_ _3"></span></span>也<span class="_ _3"></span><span class="ff4">是</span><span class="ls4">中小<span class="ff4">型</span></span>企业</span></span></span></span></div><div class="t m0 x3 h3 y16 ff3 fs0 fc0 sc0 ls16 ws0">I<span class="lsa">N<span class="lsb">T<span class="ls11">E<span class="ls2">R</span></span></span>N<span class="ls11">ER<span class="_"> </span><span class="ff4 ls4">访问<span class="ff5">解决方案<span class="_ _6"></span><span class="ff4">的<span class="ff5">重</span>要<span class="ff5 ls5">组<span class="ls4">成部分</span></span>。<span class="ff3"> </span></span></span></span></span></span></div><div class="t m0 x3 h3 y17 ff4 fs0 fc0 sc0 ls4 ws0">(<span class="ff5">二</span>)提<span class="ff5">高</span>网<span class="ff5">络性能<span class="ff3 ls0"> </span></span></div><div class="t m0 x3 h3 y18 ff5 fs0 fc0 sc0 ls0 ws0">当<span class="ff3 ls16">I<span class="ls5">n<span class="ls12">t<span class="ls13">e<span class="ls10">r<span class="ls4">n</span></span>et<span class="_"> </span><span class="ff4 ls4">的用户以<span class="ff5">指</span>数<span class="ff5">函</span>数<span class="ff5">增长时</span><span class="ls18">,网<span class="_ _a"> </span><span class="ff5">络<span class="_ _b"> </span></span>的<span class="_ _b"> </span></span><span class="ff5">拥挤</span><span class="ls5">是网</span><span class="ff5">络管</span>理<span class="ls5">的</span>一个<span class="ff5">重</span><span class="ls5">要问<span class="ff5">题<span class="_ _3"></span></span>。<span class="_ _9"></span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">x</span>y<span class="ls4"> </span></span></span>Se<span class="ls19">r<span class="ls5">v<span class="ls13">er</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y19 ff5 fs0 fc0 sc0 ls4 ws0">就好像<span class="ff4">一个</span>大储藏库<span class="ff3 ls5">, <span class="_"> </span></span><span class="ff4">它有</span><span class="ls5">很大<span class="_ _3"></span><span class="ff4">的<span class="_ _1"> </span><span class="ff3 ls2">C<span class="ls14">a<span class="ls13">c<span class="ls5">he<span class="_ _7"> </span></span></span></span></span></span>空<span class="_ _3"></span></span><span class="ff4">间<span class="ls17">。如<span class="_ _3"></span><span class="ff5">果<span class="_ _3"></span></span>通<span class="_ _c"></span></span></span>过该<span class="_ _7"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span><span class="ff4">有</span></span></span></span></span>人去过<span class="ff4">了</span>某<span class="ff4">个</span>站<span class="_ _6"></span><span class="ff4">点,<span class="_ _6"></span><span class="ff5">传</span></span></div><div class="t m0 x3 h3 y1a ff5 fs0 fc0 sc0 ls4 ws0">输<span class="ff4">了</span>某些<span class="ls5">内容<span class="ff4">,<span class="_ _d"></span><span class="ff5">那么<span class="_ _7"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">x</span>y <span class="_ _1"> </span></span></span></span><span class="ls4">会将<span class="ff4">相关的</span>资料<span class="ff3 ls1a"> (<span class="_ _e"></span><span class="ff5 ls4">包含<span class="ff4 ls5">文<span class="ls4">字、<span class="_ _f"></span><span class="ff5">图<span class="ff4 ls5">型、<span class="_ _f"></span><span class="ff5 ls4">多<span class="ls5">媒</span>体……<span class="ff3">)<span class="ff6">备份<span class="ff4">一</span>份<span class="ff4">在<span class="_ _7"> </span></span></span><span class="ls7">P<span class="ls10">r<span class="ls5">o</span></span></span>x<span class="ls5">y </span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y1b ff3 fs0 fc0 sc0 ls7 ws0">Se<span class="ls10">r<span class="ls4">v<span class="ls13">er<span class="_ _7"> </span><span class="ff5">中<span class="_ _3"></span><span class="ff4">。<span class="_ _6"></span><span class="ff5">当<span class="ff4 ls4">用户<span class="ff6">再</span>要通<span class="ff5">过该<span class="_ _7"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_ _5"> </span></span></span></span></span></span>访问相<span class="ff5">同</span>地<span class="ff6">址<span class="ff5">时<span class="_ _6"></span><span class="ff4">,<span class="_ _6"></span><span class="ff5">可<span class="ff6">直<span class="ff4">接</span>从<span class="_ _7"> </span><span class="ff3 ls1b">C<span class="ls14">a<span class="ls13">c<span class="ls5">he<span class="_"> </span><span class="ff5">中<span class="_ _3"></span></span></span></span></span></span>获得<span class="ff4">数据<span class="ls1c">。</span>一个有</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y1c ff6 fs0 fc0 sc0 ls4 ws0">效<span class="ff4">的<span class="_ _7"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span></span></span></span></span>服务器<span class="ff5">将可能将<span class="_ _5"> </span><span class="ff3">9<span class="ls5">0%<span class="_ _3"></span></span></span></span>的用<span class="ff5">量控制</span>在<span class="_ _7"> </span><span class="ff3 ls6">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_"> </span></span></span></span></span>服务器之<span class="ls5">下。<span class="_ _10"></span><span class="ff5">所<span class="ff4">以<span class="ff6 ls4">不仅</span>用<span class="ls4">户的访问<span class="ff6">速度</span></span></span></span></span></span></div><div class="t m0 x3 h3 y1d ff5 fs0 fc0 sc0 ls4 ws0">将会<span class="ff4">提</span>高<span class="ff4 ls5">,网<span class="ff5">络<span class="_ _3"></span></span>的<span class="_ _3"></span><span class="ff5">拥挤<span class="_ _3"></span></span></span><span class="ff6">状况</span><span class="ls5">也</span>将会大大<span class="_ _6"></span><span class="ff6">改观<span class="ff4">。<span class="ff3"> </span></span></span></div><div class="t m0 x3 h3 y1e ff4 fs0 fc0 sc0 ls4 ws0">(<span class="ff6">三</span>)<span class="ff5">多</span>机<span class="ff6">共享</span>一个<span class="_ _5"> </span><span class="ff3 ls16">IP<span class="_ _1"> </span><span class="ff4">地<span class="ff6">址</span></span><span class="ls0"> </span></span></div><div class="t m0 x3 h3 y1f ff5 fs0 fc0 sc0 ls0 ws0">当<span class="_ _10"></span><span class="ff4 ls4">一个<span class="ff6">局域</span>网<span class="ff6">只</span>有<span class="ls5">一个<span class="_ _7"> </span><span class="ff3 ls16">IP<span class="_ _1"> </span><span class="ff5">时<span class="ff4">,<span class="_ _e"></span><span class="ff5 ls4">就可<span class="ff4 ls5">以<span class="ls4">在服</span>务<span class="ls4">器上</span></span>安<span class="ff6">装<span class="_ _7"> </span><span class="ff3 ls7">P<span class="ls10">r<span class="ls5">o<span class="ls4">xy<span class="_ _6"></span><span class="ff4">,<span class="_ _e"></span><span class="ff6">整<span class="ff4">个</span>局域<span class="ff4">网的<span class="ls5">用户</span><span class="ff5">就可</span>通<span class="ff5">过</span>一</span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y20 ff4 fs0 fc0 sc0 ls4 ws0">个<span class="_ _7"> </span><span class="ff3 ls16">IP<span class="_"> </span></span>访问<span class="_ _7"> </span><span class="ff3 ls16">I<span class="ls4">n<span class="ls1">t<span class="ls13">e<span class="ls10">r</span></span></span>n<span class="ls13">et<span class="_ _1"> </span></span></span></span>了,<span class="ff6">这样<span class="ff5">将会</span>给局域<span class="_ _6"></span><span class="ff4">网用户<span class="ff6 ls5">节省<span class="_ _3"></span><span class="ff5">大量<span class="_ _3"></span></span>申<span class="ff4">请<span class="_ _1"> </span><span class="ff3 ls16">IP<span class="_"> </span><span class="ff4">的<span class="_ _3"></span><span class="ff6">费</span></span></span></span></span>用。<span class="ff3"> </span></span></span></div><div class="t m0 x3 h3 y21 ff3 fs0 fc0 sc0 ls4 ws0"> </div><div class="t m0 x2 h3 y22 ff3 fs0 fc0 sc0 ls14 ws0">W<span class="ls13">WW<span class="_ _7"> </span><span class="ff4 ls4">代<span class="ls5">理</span>服务器<span class="ff5">包<span class="ff6">括</span>主</span>要<span class="ls5">代理<span class="_ _7"> </span><span class="ff3">g<span class="ls4">op</span>h</span></span></span>er<span class="_ _3"></span><span class="ff4">,<span class="_ _3"></span></span><span class="ls5">h<span class="ls1">t<span class="ls12">tp<span class="_ _6"></span><span class="ff4">,<span class="ff3 ls16">f<span class="ls12">tp<span class="_ _6"></span><span class="ff4">,<span class="ff3 ls3">T<span class="ls13">e<span class="ls1">l<span class="ls4">n</span></span>et<span class="_"> </span><span class="ff5 ls4">等几<span class="ff6">种<span class="ff4">服务,</span>各种<span class="ff4">代<span class="ls5">理</span>服务</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h3 y23 ff4 fs0 fc0 sc0 ls4 ws0">的<span class="ff6">基</span>本<span class="ff6">工<span class="ff5">作</span>原</span>理是相<span class="_ _6"></span><span class="ff5">同<span class="ff4">的。<span class="ff3 lsa">H<span class="lsb">TTP<span class="_ _11"> </span></span></span>代理服务器是<span class="_ _11"> </span><span class="ff3 ls13">WWW<span class="_ _12"> </span></span>代<span class="ls5">理</span>服务器<span class="ls5">的</span>一个最</span>重<span class="ff4">要的</span><span class="ls5">组</span>成部</span></div><div class="t m0 x3 h3 y24 ff5 fs0 fc0 sc0 ls4 ws0">分<span class="ff4">,</span>同时<span class="_ _1"> </span><span class="ff3 lsa">H<span class="lsb">TTP<span class="_ _0"> </span></span></span><span class="ff4">的代理服务器的实现<span class="ff6">比较</span>简<span class="ls5">单</span>,因<span class="ff6">此<span class="_ _6"></span><span class="ff4">在<span class="ff6">这里</span>以它<span class="ff5">为<span class="ff6">样</span></span>本<span class="ls5">介绍<span class="_ _0"> </span><span class="ff3 lsd">W<span class="ls1">i<span class="ls5">n<span class="ls4">d</span>o<span class="lse">ws<span class="_ _4"> </span></span></span></span></span></span>下的</span></span></span></div><div class="t m0 x3 h3 y25 ff4 fs0 fc0 sc0 ls4 ws0">代理服务<span class="ls5">器</span>的实现<span class="ff5">方<span class="ff6">法</span></span><span class="ls1d">。</span>本文<span class="ff6">只<span class="_ _6"></span><span class="ff4">介绍的<span class="ls5">代</span>理服务<span class="ls5">器数据<span class="ff5">包<span class="_ _3"></span><span class="ff6">转<span class="_ _3"></span></span></span></span>发<span class="ls5">的</span>实现<span class="ff5">方<span class="ff6">法</span></span>,<span class="_ _13"></span><span class="ff6">由<span class="ff4">于<span class="_ _7"> </span><span class="ff3 ls2">C<span class="ls14">a<span class="ls13">c<span class="ls5">he<span class="_ _7"> </span></span></span></span></span>的处</span></span></span></span></div><div class="t m0 x3 h3 y26 ff4 fs0 fc0 sc0 ls4 ws0">理<span class="ff6">比较复杂</span>,<span class="ff5">所</span>以<span class="ls5">本文<span class="ff6">不</span>对<span class="_ _3"></span><span class="ff6">其<span class="ls4">进行</span></span></span>讨<span class="ls5">论。<span class="_ _3"></span><span class="ff3"> </span></span></div><div class="t m0 x3 h3 y27 ff3 fs0 fc0 sc0 ls5 ws0"> </div><div class="t m0 x3 h3 y28 ff3 fs0 fc0 sc0 ls5 ws0">1<span class="ff4">、<span class="_ _3"></span></span><span class="ls2">B<span class="ls10">r</span></span>o<span class="lse">w<span class="ls13">er<span class="_ _1"> </span><span class="ff4">通<span class="ff5">过<span class="_ _7"> </span></span></span></span></span>p<span class="ls10">r</span>o<span class="ls8">xy<span class="_ _5"> </span><span class="ff4 ls4">访问<span class="_ _7"> </span></span><span class="ls1e">W<span class="ls13">e<span class="ls4">b <span class="ls7">Se<span class="ls19">r</span></span></span></span></span></span>v<span class="ls13">er<span class="_ _1"> </span><span class="ff6">头<span class="ff4">文<span class="_ _3"></span><span class="ff5">件</span><span class="ls4">的数据<span class="ff6">格式<span class="ff3"> </span></span></span></span></span></span></div><div class="t m0 x3 h3 y29 ff6 fs0 fc0 sc0 ls4 ws0">由<span class="ff4">于</span>不<span class="ff5">可能<span class="ff4">在</span></span>此<span class="ff5">解</span>释<span class="_ _5"> </span><span class="ff3 lsa">H<span class="lsb">TTP<span class="_ _7"> </span></span></span>协议<span class="ff4">,<span class="ff5">所</span>以</span>只给<span class="ff4">出<span class="ls5">最</span>简<span class="ls5">单</span>的数据</span>格式<span class="ff4">的</span>例子<span class="ff4">:<span class="ff3"> </span></span></div><div class="t m0 x3 h3 y2a ff6 fs0 fc0 sc0 ls4 ws0">动<span class="ff5">作<span class="ff4">:<span class="ff3 ls2">B<span class="ls10">r<span class="ls5">o<span class="lse">w<span class="ls13">er<span class="_ _7"> </span></span></span></span></span></span></span></span>获得<span class="_ _7"> </span><span class="ff3 ls5">h<span class="ls1">t<span class="ls12">t</span></span>p<span class="ls1">://<span class="ls4">202.196.48.9</span>/i<span class="ls4">n</span></span>d<span class="ls13">e<span class="ls4">x<span class="ls8">.</span></span></span>h<span class="ls12">tm<span class="_ _6"></span> </span></span></div><div class="t m0 x3 h3 y2b ff3 fs0 fc0 sc0 ls12 ws0"> </div><div class="t m0 x3 h3 y2c ff3 fs0 fc0 sc0 ls2 ws0">B<span class="ls10">r<span class="ls5">o<span class="lsa">w<span class="ls13">er<span class="_ _7"> </span><span class="ff4">发<span class="_ _3"></span><span class="ff6">送<span class="ff5">到<span class="_ _1"> </span></span></span></span></span></span>p</span>r<span class="ls5">o<span class="ls4">xy<span class="_ _5"> </span><span class="ff4">的数据:</span> </span></span></span></div><div class="t m0 x5 h3 y2d ff3 fs0 fc0 sc0 ls2 ws0">B<span class="ls10">r<span class="ls5">o<span class="lsa">w<span class="ls13">e</span></span></span>r <span class="_ _14"> </span><span class="ls0"> <span class="ls7">P</span></span>r<span class="ls5">o<span class="ls4">x</span>y <span class="_ _15"> </span><span class="ls0"> <span class="ls7">Se</span></span></span>r<span class="ls5">v<span class="ls13">e</span></span>r </span></div><a class="l" rel='nofollow' onclick='return false;'><div class="d m1"></div></a></div><div class="pi" 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