file size limit with sftp and/or scp

[MrUmunhum]

Hi group,

I have posted this question on other forums with no working solutions.

Is there a way to limit, on the server side, the size of a sftp or
scp file transfer?

I tried to use ulimit but that did not work.

[Rubberman]

I've been looking, but to no avail. There doesn't seem to be a file-size limit parameter in any of the config files for the ftp daemons my system supports - ftpd, tftpd, vsftpd.

[MrUmunhum]

I've been looking, but to no avail. There doesn't seem to be a file-size limit parameter in any of the config files for the ftp daemons my system supports - ftpd, tftpd, vsftpd.

So whom do we ask to impliment this 'new feature'?

[Rubberman]

So whom do we ask to impliment this 'new feature'?

Get the source for your favorite ftpd implementation and modify it. If you need it badly enough to pay to have it done, contact me via private message. I've done complete implementations of the FTP and TELNET protocols (client and server) from the Whitebook RFC specs in the past, and contract software is what I do.

In any case, the ftp client sends the size of the file it is transferring to the server, which can check it's limit settings and return an error if the size is excessive. The things that would have to be done is to add a maxsize parameter to the configuration file, code to parse that in the server, a server variable to hold that value, and code in the server's SIZE command/option handler(s) to validate the value sent from the client.