有的朋友用本站的方法申请了vcup的vpn后，安装教程配置好了vpn仍然不能连接facebook等国外网站，但是ip显示的是美国或者加拿大，搜寻了一番，终于找到解决办法，首先还是先看下原因吧， 域名服务器缓存污染（DNS cache poisoning），又名域名服务器快取侵害（DNS ...

If you see a lot of banner ads on certain websites, you know that without a Virtual Private Network (VPN), hackers will quickly ravage your computer and burn down your house. Well, that seems to be ...

SSH和VPN都是一种加密的代理，我们经常见到的是VPN代理，可是VPN代理一般都是要给钱的，而SSH就不同啦，现在很多国外的免费空间都提供SSH服务的，但是SSH代理又不能像VPN那样只要建立虚拟专用网络，要通过Tunnelier等类似的软件来实现SSH代理，如果我们要电脑上 ...

I am going to be setting up an offsite server and using rsync (with BackupAssist) to copy files from our main server to an offsite server for a very basic form of disaster recover. I am debating ...

My experience with this is limited, so please excuse my misuse of terminology or if i say something that makes no sense. <BR><BR>Currently I have a Cisco 3000 Concentrator that works great and users ...