它在与 chek.proxyradar.com 相关的日志中出现了一个奇怪的异常，在我的服务器中，我没有使用与 proxyradar 相关的任何内容......这是异常：
2016-12-03 10:38:10,394 ERROR [io.undertow.request] (default I/O-2) UT005071: Undertow request failed HttpServerExchange{ CONNECT check.proxyradar.com:80 request {} response {X-Powered-By=[Undertow/1], Server=[WildFly/10]}}: java.lang.IllegalArgumentException: UT000068: Servlet path match failed
at io.undertow.servlet.handlers.ServletPathMatchesData.getServletHandlerByPath(ServletPathMatchesData.java:83)
at io.undertow.servlet.handlers.ServletPathMatches.getServletHandlerByPath(ServletPathMatches.java:83)
at io.undertow.servlet.handlers.ServletInitialHandler.handleRequest(ServletInitialHandler.java:151)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:39)
at io.undertow.server.handlers.HttpContinueReadHandler.handleRequest(HttpContinueReadHandler.java:65)
at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:94)
at org.wildfly.extension.undertow.Host$OptionsHandler.handleRequest(Host.java:295)
at io.undertow.server.handlers.HttpContinueReadHandler.handleRequest(HttpContinueReadHandler.java:65)
at io.undertow.server.handlers.SetHeaderHandler.handleRequest(SetHeaderHandler.java:90)
at io.undertow.server.handlers.SetHeaderHandler.handleRequest(SetHeaderHandler.java:90)
at org.wildfly.extension.undertow.Host$HostRootHandler.handleRequest(Host.java:303)
at io.undertow.server.handlers.NameVirtualHostHandler.handleRequest(NameVirtualHostHandler.java:64)
at io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:78)
at io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49)
at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:158)
at io.undertow.server.protocol.http2.Http2UpgradeHandler.handleRequest(Http2UpgradeHandler.java:95)
at io.undertow.server.handlers.DisallowedMethodsHandler.handleRequest(DisallowedMethodsHandler.java:61)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:243)
at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:134)
at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:148)
at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:92)
at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:51)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291)
at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.nio.QueuedNioTcpServer$1.run(QueuedNioTcpServer.java:128)
at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:588)
at org.xnio.nio.WorkerThread.run(WorkerThread.java:468)
有任何想法吗？我应该通过 iptables 阻止来自 proxyradar.com 的连接吗？