[BlueOnyx:10734] Re: proftp problems - FIXED?

[Steffan]

Hey, that fixed it for me to


-----Oorspronkelijk bericht-----
Van: blueonyx-bounces at mail.blueonyx.it
[mailto:blueonyx-bounces at mail.blueonyx.it] Namens Greg Kuhnert
Verzonden: dinsdag 5 juni 2012 12:11
Aan: BlueOnyx General Mailing List
Onderwerp: [BlueOnyx:10727] proftp problems - FIXED?

Hi Team.

I've been looking at the proftpd problems that have been recently 
reported, and I have some good news. I've tested, and I believe I have a 
fix. This is actually I think a bug that has been around for a very long 
time back to the BlueQuartz days. The weird thing is that this problem 
was not happening uniformly on all servers.... and it used to "come and 
go" after different updates.

Here's what I found in the log files....

Jun  5 10:00:01 node1 xinetd[24021]: START: ftp pid=3620 from=127.0.0.1
Jun  5 10:00:01 node1 proftpd[3620]: warning: "ProFTPD" address/port 
(203.26.211.121:21) already in use by "ProFTPD server"
Jun  5 10:00:01 node1 xinetd[24021]: EXIT: ftp signal=11 pid=3620 
duration=0(sec)

Before testing, I validated that nothing was using port 21 except for 
xinetd. If I retry another FTP straight after the initial failure, it 
works perfectly.

I did some digging, and found a command line option in the proftpd man 
page that looked interesting...

        -N,--nocollision
                    Disables address/port collision checking.

I threw this into /etc/xinetd.d/proftpd and everything started working. 
Below is a copy of my file...

I would appreciate it if a few of you could test this to verify it is 
indeed the smoking gun!

Regards,
Greg.

=======

# default: off
# $Id: proftpd-xinetd,v 1.2 2002/06/10 15:35:47 dude Exp $
# description: The ProFTPD FTP server serves FTP connections. It uses \
#       normal, unencrypted usernames and passwords for authentication.
service ftp
{
         socket_type             = stream
         wait                    = no
         user                    = root
         server                  = /usr/sbin/in.proftpd
         server_args             = --nocollision
         log_on_success          += DURATION
         log_on_failure          += USERID
         nice                    = 10
         disable                 = no
         instances = 80
}

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