^\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: pam_unix\(proftpd:session\): session (opened|closed) for user [._[:alnum:]-]+( by \(uid=[0-9]+\))?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) FTP session (opened|closed)\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) (USER [._[:alnum:]-]+|ANON (anonymous|ftp)): Login successful\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) (USER [._[:alnum:]-]+|ANON (anonymous|ftp)): Limit access denies login\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) mod_delay/[0-9]\.[0-9]: delaying for [0-9]+ usecs$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) ANON (anonymous|ftp): Login successful.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) mod_delay/[0-9.]+: delaying for [0-9]+ usecs$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) FTP ((login|session) timed out|no transfer timeout), disconnected$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) USER [-_.@[:alnum:]]+: no such user found from [.:_[:alnum:]-]+ \[[.:[:xdigit:]]+\] to [.:[:xdigit:]]+:[[:digit:]]{2,5}$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) Maximum login attempts \([[:digit:]]+\) exceeded$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) no such user '[-_.@[:alnum:]]+'$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+ \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\)(:| -) notice: user [-_.[:alnum:]]+: aborting transfer: Data connection closed\.
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+( \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\))?(:| -) error setting IPV6_V6ONLY: Protocol not available$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]:? [._[:alnum:]-]+( \([:._[:alnum:]-]+\[[.:[:xdigit:]]+\]\))?(:| -) Preparing to chroot to directory '[-/._[:alnum:]]+'$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd: PAM-listfile: Refused user [._[:alnum:]-]+ for service proftpd$