Q: Start the fastDHT service, why it prompts "segment fault"?
A: Because the dependence libdb-5.3.so needed by fastDHT does not be installed correctly or directed to the link. You can use command ldd /usr/local/bin/fdhtd to view all dependences of fdhtd. If the ibdb is not 5.3 version, you need to modify the libdb.so symbol link in libdb.so directory, and make it point to BDB 5.3 dynamic library.
Note: the libdb.so location is different in different operating system. If the command ldd /usr/local/bin/fdhtd result is libdb-4.7.so => /usr/lib/libdb-4.7.so, you need to create 5.3 symbol link in /usr/lib/; If the result is libdb-4.7.so => /lib64/libdb-4.7.so, you need to create the 5.3 link in /lib64.
