htaccess to password protect a specific server

.htaccess

# ----------------------------------------------------------------------
# Password protect staging server
# Use one .htaccess file across multiple environments
# (e.g. local, dev, staging, production)
# but only password protect a specific environment.
# ----------------------------------------------------------------------

SetEnvIf Host staging.domain.com passreq
AuthType Basic
AuthName "Password Required"
AuthUserFile /full/path/to/.htpasswd
Require valid-user
Order allow,deny
Allow from all
Deny from env=passreq
Satisfy any

@elliotlewis - Unfortunately I think that @loekwetzels is right. If you put to your hosts file a record as he describes, then SetEnvIf Host staging.domain.com returns FALSE, so env variable won't be passreq. Because my host is omgihazaccess (from @loekwetzels example).

I think @jan-vodila and @loekwetzels are right. Probably not a good solution for anything seriously important