Entering lockdown mode manually - PingDirectory - 9.3

PingDirectory 9.3
bundle
pingdirectory-93
ft:publication_title
PingDirectory 9.3
Product_Version_ce
PingDirectory 9.3 (Latest)
category
Product
pd-93
pingdirectory
ContentType_ce
To enter lockdown mode, run enter-lockdown-mode. 
$ bin/enter-lockdown-mode