^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]: [._[:alnum:]-]+ \([.:_[:alnum:]-]+\[[0-9a-f.:]+\]\) (- )FTP session (opened|closed)\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]: [._[:alnum:]-]+ \([.:_[:alnum:]-]+\[[0-9a-f.:]+\]\) (- )USER [._[:alnum:]-]+: Login successful\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd: \(pam_unix\) session (opened|closed) for user [._[:alnum:]-]+( by \(uid=[0-9]+\))?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]: [._[:alnum:]-]+ \([.:_[:alnum:]-]+\[[0-9a-f.:]+\]\) (- )mod_delay/[0-9]\.[0-9]: delaying for [0-9]+ usecs$
