[squid-users] Enable native ftp proxying with authentification

[Mathieu Peltier]

Hi,
I am trying to enable native ftp proxying with authentification (squid
3.5, centos 7):

  acl password proxy_auth REQUIRED
  http_access allow FTP password
  ftp_port 21

Does it make sense ? How am I supposed to login into the proxy?

  ftp proxy.domain.org
  login: proxyuser at anonymous@ftp.free.fr
  -> KO
  451-ERR_CACHE_ACCESS_DENIED
  451 Proxy Authentication Required
  Login failed.

  ftp proxy.domain.org
  login: proxyuser
  -> KO
  501 Missing host
  Login failed.

It works without authentification (http_access allow FTP).
Thanks in advance,
Mathieu