-LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=${LOG_LEVEL:="INFO"}}
-KEYSERVER=${MONKEYSPHERE_KEYSERVER:=${KEYSERVER:="pool.sks-keyservers.net"}}
-MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=${MONKEYSPHERE_USER:="monkeysphere"}}
-PROMPT=${MONKEYSPHERE_PROMPT:=${PROMPT:="true"}}
+LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=$LOG_LEVEL}
+KEYSERVER=${MONKEYSPHERE_KEYSERVER:=$KEYSERVER}
+CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:=$CHECK_KEYSERVER}
+MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=$MONKEYSPHERE_USER}
+PROMPT=${MONKEYSPHERE_PROMPT:=$PROMPT}