阻止到某个 IP 的传出连接以进行失败测试？
我们在 Windows Server 2003 上使用 Coldfusion 9。我们正在对一些通过 CFLDAP 与 LDAP 交互的代码以及通过 Java 与 LDAPS 交互的代码进行“故障转移”测试（用于密码更改）。
本质上，我们希望拥有 LDAP 服务器 IPS 的列表，并在发生连接故障时切换到新服务器。
是否有一种快速方法可以阻止从操作系统级别到 IP 的出站连接以模拟 LDAP 服务器中断，而无需实际断开其与网络的连接或将其关闭？
We are using Coldfusion 9 on Windows Server 2003. We are testing a "failover" on some code that interacts with LDAP through CFLDAP and LDAPS through Java (for password changes).
Essentially we want to have a list of LDAP server IPS and switch to a new server when a connection failure occurs.
Is there a quick way to block outbound connections to an IP from an OS level to mimic an LDAP server outage without actually disconnecting it from the network or shutting it off?
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将您想要显示为离线的 IP 添加到 /etc/hosts 中，指向 127.0.0.1
Add the IP that you want to appear as offline to /etc/hosts as pointing to 127.0.0.1
ColdFusion 没有内置任何东西来促进这一点。经过一番谷歌搜索后，我认为 @Adam Tuttle 的解决方案可能是 Windows 盒子的最佳选择，但看来您也可以使用 Windows防火墙实现此效果。在 *nix 盒子上看起来像 "iptables"命令可以阻止出站流量。
ColdFusion doesn't have anything built in to facilitate this. After some Googling, I think @Adam Tuttle's solution is probably the best bet for Windows boxes, however it appears you can also use the Windows Firewall to achieve this effect. On *nix boxes looks like the "iptables" command can stop outbound traffic.
Sniffy 允许您阻止 Java 应用程序中的传出网络连接（Coldfusion 基于 Java） - 每当您尝试与受限主机建立新连接时，它都会抛出
ConnectException。只需将
-javaagent:sniffy.jar=5559添加到您的 JVM 参数中，并将浏览器指向localhost:5559- 它将打开一个网页，其中包含所有已发现的与下游系统的连接以及禁用某些连接的控件。如果您的应用程序是基于 Web 的，您甚至可以直接从在浏览器中打开的应用程序中执行此操作 - 请参阅此处的演示：http://demo.sniffy.io/owners?lastName=
单击右下角的小部件，选择
网络连接选项卡，禁用并连接到localhost:8967（数据库）并重新加载页面以查看其运行情况。免责声明：我是 Sniffy 的作者
Sniffy allows you to block outgoing network connections in your Java applications (Coldfusion is based on Java) - it will throw a
ConnectExceptionwhenever you try to establish a new connection to restricted host.Just add
-javaagent:sniffy.jar=5559to your JVM arguments and point your browser tolocalhost:5559- it will open a web page with all discovered connections to downstream systems and controls to disable certain connections.If your application is web-based, you can even do it directly from your application opened in browser - see a demo here: http://demo.sniffy.io/owners?lastName=
Click on a widget in bottom-right corner, select
Network Connectionstab, disable and connection tolocalhost:8967(database) and reload a page to see it in action.Disclaimer: I'm the author of Sniffy