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The "FAQ/Troubleshooting_and_Diagnostics" page has been changed by KonstantinKolinko: https://wiki.apache.org/tomcat/FAQ/Troubleshooting_and_Diagnostics?action=diff&rev1=14&rev2=15 Comment: Add note on IPv4 vs IPv6. 1. Look into [[HowTo#How_do_I_log_requests_.3F|Tomcat access log]] (the log file generated by AccessLogValve). * If your request is not listed there, then it has not been processed by Tomcat. You need to look elsewhere (e.g. at your firewall). + * You will see what IP address your client is using, and whether it is using an IPv4 (`127.0.0.1`) or IPv6 address (`0:0:0:0:0:0:0:1`). Modern operating systems can use IPv6 addresses for localhost / local network access, while external network is still using IPv4. 2. [[HowTo#How_do_I_obtain_a_heap_dump.3F|Take a thread dump]]. This way you will find out what Tomcat is actually doing. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
