I am using vsftpd & experience high tarffic on udp port 53 which is DNS, I beleive this is when a log is writen to audit.log by the vsftpd. When i stop teh ftp server there is no more DNS traffic.
How can i disable the DNS lookup ? ther is no option through vsftpd & its not the syslog.
Can either be the PAM or some other OS options,