免费推荐：iis安装
这个类是基于 Microsoft.Web.Administration 写的一个简单封装：
PS: Microsoft.Web.Administration 可通过 Nuget 搜索安装。
public class IISAdministration { private readonly ServerManager serverManager; public IISAdministration() { serverManager = new ServerManager(); } public IEnumerable<WorkerProcess> GetWorkerProcesses() { return serverManager.WorkerProcesses; } public IEnumerable<string> GetSiteNames() { foreach (var item in GetWorkerProcesses()) { yield return item.AppPoolName; } } public ConfigurationElementCollection GetIpSecurityCollection(string site) { return GetConfigurationElementCollection("system.webServer/security/ipSecurity", site); } public ConfigurationElementCollection GetConfigurationElementCollection(string sectionName, string site = "") { var config = serverManager.GetApplicationHostConfiguration(); ConfigurationSection section; if (string.IsNullOrWhiteSpace(site)) { section = config.GetSection(sectionName); } else { section = config.GetSection(sectionName, site); } return section.GetCollection(); } public void CreateElement(ConfigurationElementCollection section, ConfigurationElement element) { section.Add(element); serverManager.CommitChanges(); } public void RemoveElement(ConfigurationElementCollection section, ConfigurationElement element) { section.Remove(element); serverManager.CommitChanges(); } public bool HasBlocked(string siteName, string ip) { var ipSecurityCollection = this.GetIpSecurityCollection(siteName); for (int i = 0; i < ipSecurityCollection.Count; i++) { var element = ipSecurityCollection[i]; if ((string)element["ipAddress"] == ip) { return true; } } return false; } public void FreeIP(string siteName, string ip) { if (!HasBlocked(siteName, ip)) { return; } var ipSecurityCollection = this.GetIpSecurityCollection(siteName); for (int i = 0; i < ipSecurityCollection.Count; i++) { var element = ipSecurityCollection[i]; if ((string)element["ipAddress"] == ip) { this.RemoveElement(ipSecurityCollection, element); break; } } } public void BlockIP(string siteName, string ip) { if (HasBlocked(siteName, ip)) { return; } var ipSecurityCollection = this.GetIpSecurityCollection(siteName); var element = ipSecurityCollection.CreateElement("add"); element["ipAddress"] = ip; element["allowed"] = false; ipSecurityCollection.Add(element); serverManager.CommitChanges(); } }
使用方法：
var iisAdministration = new IISAdministration(); iisAdministration.BlockIP("", "192.0.0.1");
注意：
- BlockIP第一个参数为站点名，如果空字符串，则直接添加到 IIS 根路径下的IP屏蔽。
- 此方法会抛出异常，而且需要管理员权限才可执行。
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