I've installed wu-ftpd (version wu-2.6.2) on a computer that's running Debian Linux (Sarge). I can ftp files from my Win 98 computer to the Linux machine, but I cannot change the file permissions. Using two different ftp clients, I get the same error message 502 CHMOD command not implemented.
I have edited the ftpaccess file so that it contains the line:
chmod yes guest,real
Any idea what I'm doing wrong? I am not logging in anonymously. I noticed in a README file that "additional" commands need to be included in the /bin/ftp-exec directory. Is chmod an "additional" command? And I am sure that I am editing the correct ftpaccess file, because I changed the banner line and my change took effect when I restarted the linux machine.
Thanks for any ideas.

I am really having a tough time figuring this problem out. Is there a chance that the wu-ftpd Debian package just doesn't support the chmod command? Or could I have installed the package such that the chmod command cannot be enabled?

I never figured out how to enable chmod, but I did find a solution to my basic problem. I was able to use the upload command in the ftpaccess file. The upload command allows me to set the file permissions of any file that is uploaded by a particular user (or group of users) to a particular directory. So, as long as I want all the files that I upload into the same directory to have the same permissions, this command works for me.

I was wrong. The upload command in the ftpaccess file did not work for me. I am trying to put a program in the cgi-bin directory and I cannot give the program execute permission. I think there is something basic about file permissions or security that I do not understand. I have found another workaround: I set up a Telnet server on the machine I am uploading files to. I can successfully chmod the file using Telnet. Is there anybody out there with a better solution?