Re: [Proftpd-user] Proftpd and openssh simultaneously?

On Sun, 6 Mar 2022, UpNorth wrote:

> I have a very specific sftp option I must have on (SFTPRekey none) which only 
> proftpd supports.  I have a series of vendor boxes that cannot be changed to 
> sftp into a different port than 22 so I did move openssh to port 2222, but I 
> was hoping to having something on port 22 that could do sftp AND ssh (and 
> also allow the setting of SFTPRekey none)

The sftp support in openssh is handled by an external program 
(/usr/libexec/sftp-server), which can be replaced by the user (there 
are competing sftp's available).  In fact, it is possible to support 
other ssh-based protcols in the same way.  It is likely possible to 
insert a subset of proftpd (with code changes) where openssh's sftpd 
program goes similar to the way servers can run under inetd.

The main problem if openssh is the front end is that openssh is then 
doing the authentication and loses special server features that 
proftpd provides.

Bob
-- 
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
Public Key,     http://www.simplesystems.org/users/bfriesen/public-key.txt

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