The following section uses an actual example to demonstrate building a local policy module to address an issue with the current policy. This issue involves the ypbind init script, which executes the setsebool command, which in turn tries to use the terminal. This is generating the following denial:

type=AVC msg=audit(1164222416.269:22): avc:  denied  { use } for  pid=1940 comm="setsebool" name="0" dev=devpts ino=2 \
	scontext=system_u:system_r:semanage_t:s0 tcontext=system_u:system_r:init_t:s0 tclass=fd

Even though everything still works correctly (that is, it is not preventing any applications form running as intended), it does interrupt the normal work flow of the user. Creating a local policy module addresses this issue.