Toolbox dump - method not allowed

Bugs
1

Enonic version: 5.3.0
OS: Debian

./toolbox.sh dump -a USER:PASSWORD -h localhost -p 5100 -t myDump
Response error: {
  "status" : 405,
  "message" : "No resource method found for POST, return 405 with Allow header",
  "context" : {
    "authenticated" : false,
    "principals" : [ "user:system:anonymous", "role:system.everyone" ]
  }
}

Any ideas ?

2

Need to authenticate I guess?

3

Username and password is correct. We get a method not allowed, not 401 unauthorized.

4

Are you sure that you run 5.3.0 toolbox against 5.3.0 xp?