git发布在windows server 2012上面之后，端口不是80，为了git服务访问的有好性，所以需要使用IIS进行域名服务代理。通过域名代理使80端口访问转发到git服务端口上面，同时还可以使用IIS配置ssl，上线HTTPS协议。
IIS添加代理之后，部分文件访问会出现404的情况，这是IIS安全性屏蔽了部分类型文件导致的，例如cs、dll、resx等，要想去除该限制需要对IIS部署的网站中的web.config文件进行相关改写。

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
    <security>
      <!-- Very important,the IIS configuration must have the 
           overrideModeDefault to allow in the file  
           %systemroot%\System32\inetsrv\config\applicationHost.config -->
      <!-- section name="requestFiltering" overrideModeDefault="Allow" /> -->
      <requestFiltering>
        <fileExtensions allowUnlisted="true">
          <remove fileExtension=".asa" />
          <remove fileExtension=".asax" />
          <remove fileExtension=".ascx" />
          <remove fileExtension=".master" />
          <remove fileExtension=".skin" />
          <remove fileExtension=".browser" />
          <remove fileExtension=".sitemap" />
          <remove fileExtension=".config" />
          <remove fileExtension=".cs" />
          <remove fileExtension=".csproj" />
          <remove fileExtension=".vb" />
          <remove fileExtension=".vbproj" />
          <remove fileExtension=".webinfo" />
          <remove fileExtension=".licx" />
          <remove fileExtension=".resx" />
          <remove fileExtension=".resources" />
          <remove fileExtension=".mdb" />
          <remove fileExtension=".vjsproj"  />
          <remove fileExtension=".java" />
          <remove fileExtension=".jsl"  />
          <remove fileExtension=".ldb" />
          <remove fileExtension=".dsdgm" />
          <remove fileExtension=".ssdgm" />
          <remove fileExtension=".lsad" />
          <remove fileExtension=".ssmap" />
          <remove fileExtension=".cd" />
          <remove fileExtension=".dsprototype" />
          <remove fileExtension=".lsaprototype" />
          <remove fileExtension=".sdm" />
          <remove fileExtension=".sdmDocument" />
          <remove fileExtension=".mdf" />
          <remove fileExtension=".ldf" />
          <remove fileExtension=".ad" />
          <remove fileExtension=".dd" />
          <remove fileExtension=".ldd" />
          <remove fileExtension=".sd" />
          <remove fileExtension=".adprototype" />
          <remove fileExtension=".lddprototype" />
          <remove fileExtension=".exclude" />
          <remove fileExtension=".refresh" />
          <remove fileExtension=".compiled" />
          <remove fileExtension=".msgx" />
          <remove fileExtension=".vsdisco" />
        </fileExtensions>
        <hiddenSegments>
          <remove segment="web.config" />
          <remove segment="bin" />
          <remove segment="App_code" />
          <remove segment="App_GlobalResources" />
          <remove segment="App_LocalResources" />
          <remove segment="App_WebReferences" />
          <remove segment="App_Data" />
          <remove segment="App_Browsers" />
        </hiddenSegments>        
      </requestFiltering>
    </security>
    </system.webServer>
</configuration>