Enterprise Administration > File Vaulting and Replication > Replication > Understanding Replication > Replication Security > About Security and Using wt.intersvrcom.URLAuthenticator.useUrlCache
  
About Security and Using wt.intersvrcom.URLAuthenticator.useUrlCache
If you set the wt.intersvrcom.URLAuthenticator.useUrlCache property to false on the master site and all remote sites, a single URL can be used multiple times within the grace period specified by the property wt.intersvrcom.security.graceTimePeriod. The default setting of the wt.intersvrcom.URLAuthenticator.useUrlCache property is true.
Allowing multiple uses of a URL in combination with a large grace period increases the risk of malicious use of the URL.