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-   -   ftp question about 500 AUTH not understood (https://www.linuxquestions.org/questions/linux-newbie-8/ftp-question-about-500-auth-not-understood-3764/)

pdelucia 06-27-2001 10:13 PM

ftp question about 500 AUTH not understood
 
Hello,

I am trying to setup Proftpd on Redhat Linux 7.1. It is up and running (using PAM), but everytime I connect I get this:

220 ProFTPD 1.2.1 Server (ProFTPD Server)
500 AUTH not understood.
500 AUTH not understood.
KERBEROS_V4 rejected as an authentication type


Can anyone tell me what the AUTH not understood means?

Thanks in advance,
Peter.

Savedadogs 04-06-2002 01:13 AM

Clients are getting this message when they try to ftp into me. I am behind a firewall.....Please help !

tartley 05-01-2002 02:53 AM

I have same problem
 
Did anyone figure this out? I see exactly the same problem trying to log into the proftpd server on my Mandrake 8.2 installation.
Thanks for any pointers.

Mik 05-01-2002 05:34 AM

It is only a warning message. The client is trying to login using an authentication method which is not supported by the server. The client should then proceed using the normal login method, which is unsafe because passwords gets sent in clear text over the network.

tartley 05-02-2002 09:35 PM

i see
 
Ah, but then it goes on to not allow any users to log in.

I guess that is a separate problem and I need to go rtfm. thanks though.

Reppy 07-29-2003 10:52 AM

okay i had the same problem.
If you aren't able to login or get something like that read my solution ;)

Connected to localhost.
220 ProFTPD 1.2.9rc1 Server (sputnik.landshut.org - FTPServer) [sputnik.landshut.org]
Name (localhost:patrick): test-user
500 AUTH not understood
SSL OK
331 Password required for test-user.
Password:
530 Login incorrect.
Login failed.
Remote system type is UNIX.
Using binary mode to transfer files.

I was sure to use the right password but the proftpd wasn't able to read out the passwd and the shadow file (mod was: -rw-------)

One solution was to use the AuthUserFile [path] directive and to create a extra passwd-File for the FTP-User.
The other solution was to change the permissions of the passwd and shadow file (dangerous) to -rw-rw-rw- (-rw-r--r-- should also work)


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