Forum Discussion
Kai_Wilke
Sep 03, 2016MVP
Hi Willy,
FTP in its classic form does not support HOST-headers like HTTP does.
But a new RFC has been developed by Microsoft and was published in March 2014, with an added HOST-command extension (see RFC7151/Cap.3).
Unfortunately is the support for this RFC not widely spreaded yet. So that it would strongly depend on the FTP clients and servers you're going to use.
Beside of the client/server support. F5 doesn't have an explicit support for any FTP command. So you have to parse the FTP control-channel with homegrown iRules to filter out connection attemps using missing or mismatching HOST-names.
https://tools.ietf.org/html/rfc7151
Cheers, Kai