I have often noticed that while running ftp server with ProFTP there are strange f’s coming with ipadress like FFFF:11.33.44.99
I got this fixed by disabling IPv6 used by Proftp. Just put this one line in your proftp configuration file /etc/proftpd.conf
UseIPv6 off
You can see the changes while analysing the /var/log/secure log file for any login attempts.
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April 25, 2010
This is an accurate information, it helped me to also fix that matter. Many thanks for this good job.
July 15, 2010
thanks for sharing
February 15, 2011
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