Hi guys, today we faced a problem on on of our production-servers, unfortunateley,we were not able to replay it on our test-servers.
Therefore, we decided to use remote-debugging (JPDA) to track down the error. While fiddling out the ports with our firewall-guys, we tested wether we could reach Tomcat's JPDA-port (i.e. 8787) via Telnet and entered some dummy-stuff over Telnet. The result: Tomcat crashed! That means, if somebody is running Tomcat 5.5 in JPDA-mode, it's a peace of cake to crash the instance. I'm not sure wether this is a JPDA-architecture-bug, a Tomcat 5.5-bug or just meant by design, anyways, I thought you'd like to know. This is the result Tomcat sent to catalina.out before crashing: ========[snip]=================== ERROR: transport error 202: handshake failed - received >? sdoskdokd < - excepted >JDWP-Handshake< ["transport.c",L41] JDWP exit error JVMTI_ERROR_NONE(0): could not connect, timeout or fatal errorListening for transport dt_socket at address: 8787 ========[snap]=================== My question: Does one of you know a solution to limit JPDA to accept a connection from a dedicated IP-adress only or tunnel JPDA via ssh? Anybody here who has done something similar already? Cheers Gregor -- what's puzzlin' you, is the nature of my game gpgp-fp: 79A84FA526807026795E4209D3B3FE028B3170B2 gpgp-key available @ http://pgpkeys.pca.dfn.de:11371 --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
