To manage indexes:
editor /etc/sphinx/sphinx.conf
To rebuild all disk indexes:
sudo -u sphinx indexer --all --rotate
To start/stop search daemon:
service searchd start/stop
To query search daemon using MySQL client:
mysql -h 0 -P 9306
mysql> SELECT * FROM test1 WHERE MATCH('test');
See the manual at /usr/share/doc/sphinx-2.2.10 for detail