DHCP/DNS服务器硬件设备

 

为了确保网络正常运行，需要有高安全性的具有冗余架构的DHCP/DNS

随着智能设备和无线IP电话、笔记本电脑等的普及，对DHCP/DNS服务器性能及稳定性的要求越来越高。

而目前，大多数采用的是路由器或服务器附带的DHCP/DNS功能，这样给维护和管理都带来不便。为确保业务的连续性，采用专用服务器显得尤为重要。

NetAttest D3是专门用于DHCP/DNS服务器的硬件设备。可以放在公司内部作为DNS/DHCP服务器，也可以放在DMZ区域作为向因特网开放的DNS服务器来运行。为了使DHCP服务能够在以IP为基础的网络上高效、稳定地运行，在设计时就注重于设备的高性能、高可用性，并支持DHCP服务器的冗余架构，因而提供了一个稳定地DHCP服务，并实现了IP地址的充分利用。

 

<table border="0" cellpadding="1" cellspacing="1" style="width:500px"> <tbody> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="color:rgb(0, 0, 0)"><span style="font-size:18px"><strong><u><span style="font-family:times new roman,times,serif">DHCP</span>服务的功能</u></strong></span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">完备的管理、安全功能</span></span></span></td> </tr> </tbody> </table> <p>&nbsp;</p> <table border="0" cellpadding="1" cellspacing="5" style="height:372px; width:510px"> <tbody> <tr> <td><span style="line-height:1.75em"><span style="font-size:16px"><span style="font-family:微软雅黑"><img alt="" src="/Uploads/images/20180202015222_1583.png" style="height:20px; width:11px" />&nbsp;<span style="font-family:宋体"><strong><span style="font-family:times new roman,times,serif">IP</span>地址分配限制</strong></span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px"><span style="color:rgb(0, 0, 205)">使用<span style="font-family:times new roman,times,serif">MAC</span>地址过滤</span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">注册<span style="font-family:times new roman,times,serif">PC</span>等客户端的<span style="font-family:times new roman,times,serif">MAC</span>地址，仅向已注册的客户端分配<span style="font-family:times new roman,times,serif">IP</span>。</span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">禁止没有注册的客户端访问网络资源。</span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px"><span style="color:rgb(0, 0, 205)">设置排除范围</span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">在同时使用<span style="font-family:times new roman,times,serif">DHCP</span>和固定<span style="font-family:times new roman,times,serif">IP</span>的环境下，可以把固定<span style="font-family:times new roman,times,serif">IP</span>地址设定在<span style="font-family:times new roman,times,serif">DHCP</span>的排除范围中。确保固定<span style="font-family:times new roman,times,serif">IP</span>不被占用。</span></span></span></td> </tr> <tr> <td>&nbsp;</td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-size:16px"><img alt="" src="/Uploads/images/20180202015948_4544.png" style="height:20px; width:11px" />&nbsp;<span style="font-family:宋体"><strong><span style="font-family:times new roman,times,serif">IP</span>地址的分配状况可以即时地显示、通知</strong></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px"><span style="font-family:times new roman,times,serif">IP</span>地址的分配状况可以在管理界面上一目了然。另外，分配的<span style="font-family:times new roman,times,serif">IP</span>地址数超过所设置的阀值时，可以向管理员发送邮件通知，在发生<span style="font-family:times new roman,times,serif">IP</span>地址短缺前及时应对。分配状况的确认、通知邮件的配置可以以整个系统为单位，也可以以作用域为单位进行设置。</span></span></span></td> </tr> </tbody> </table> <p>&nbsp;</p> <table border="0" cellpadding="1" cellspacing="1" style="height:57px; width:508px"> <tbody> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:18px"><strong><u><span style="font-family:times new roman,times,serif">DNS</span>服务的功能</u></strong></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">通过<span style="font-family:times new roman,times,serif">WebGUI</span>简单操作即可运行<span style="font-family:times new roman,times,serif">DNS</span>服务器</span></span></span></td> </tr> </tbody> </table> <p>&nbsp;</p> <table border="0" cellpadding="1" cellspacing="1" style="height:100px; width:508px"> <tbody> <tr> <td><span style="line-height:1.75em"><img alt="" src="/Uploads/images/20180202022005_2786.png" style="height:20px; width:11px" /><span style="font-family:宋体"><span style="font-size:16px"><strong>不需要专业知识也可以设置管理域</strong></span></span></span></td> </tr> <tr> <td> <p><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px"><span style="font-family:times new roman,times,serif">NetAttest D3</span>支持中文、日文的<span style="font-family:times new roman,times,serif">WebGUI</span>设置界面。简单操作便可完成域管理、查询限制、冗余架构。即使是为应对漏洞等情况，而需要进行升级，耗时也很短。因而对网络影响极小。就算不太精通DNS的管理员也能够操作自如。</span></span></span></p> <p>&nbsp;</p> </td> </tr> </tbody> </table> <p><img alt="" src="/Uploads/images/20180202032058_1346.png" style="height:237px; width:513px" /></p>

<p><span style="font-family:宋体"><span style="font-size:18px"><span style="color:rgb(0, 0, 128)"><strong>NetAttest D3</strong></span></span></span></p> <p>&nbsp;</p> <table border="1" cellpadding="1" cellspacing="1" style="height:690px; width:642px"> <tbody> <tr> <td colspan="2" rowspan="1">&nbsp;</td> <td> <p><span style="line-height:1.75em"><img alt="" src="/Uploads/images/20180201073720_4602.png" style="height:103px; width:352px" /></span></p> </td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em">&nbsp;<span style="font-family:宋体"><span style="font-size:14px">型<span style="font-size:16px">号</span></span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">D3-ST05CN</span></span></span></span></td> </tr> <tr> <td colspan="1" rowspan="4"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">DHCP</span>服务器</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;最多分配地址数</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">5000</span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;最多作用域数</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">1000</span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">DHCP</span>分配能力</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;约<span style="font-family:times new roman,times,serif">70</span>租约/秒</span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">IP</span>地址分配控制</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;静态：<span style="font-family:times new roman,times,serif">5000</span>，动态：<span style="font-family:times new roman,times,serif">5000</span></span></span></span></td> </tr> <tr> <td colspan="1" rowspan="3"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">DNS</span></span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;最多记录数</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">5000</span></span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;最多区域数</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;1000</span></span></span></td> </tr> <tr> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">DNS</span>查询处理能力</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;约<span style="font-family:times new roman,times,serif">11000</span>查询/秒</span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;冗余架构</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;可</span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;网卡</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;板载<span style="font-family:times new roman,times,serif">6</span>个<span style="font-family:times new roman,times,serif">PCI-E(&times;1)</span>千兆<span style="font-family:times new roman,times,serif">RJ45</span>网口</span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;尺寸</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">430mm&times;44mm&times;254mm</span></span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;净重</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">3.1Kg</span></span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;发热量</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">50W</span></span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;电源</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;<span style="font-family:times new roman,times,serif">150W</span>标准工业级<span style="font-family:times new roman,times,serif">ATX</span>单电源</span></span></span></td> </tr> <tr> <td colspan="2" rowspan="1"><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;运行环境</span></span></span></td> <td><span style="line-height:1.75em"><span style="font-family:宋体"><span style="font-size:16px">&nbsp;温度<span style="font-family:times new roman,times,serif">5~40℃</span>、湿度<span style="font-family:trebuchet ms,helvetica,sans-serif">20~90%RH</span>不结霜</span></span></span></td> </tr> </tbody> </table> <p>&nbsp;</p>