protocolo ftp eduardo 19 Sep 2019 https://www.ncftp.com/ncftpd/doc/misc/ftp_and_firewalls.html http://slacksite.com/other/ftp.html script errado - https://www.cyberciti.biz/faq/iptables-passive-ftp-is-not-working/ Ver mais about protocolo ftp
ip_conntrack_ftp eduardo 15 Sep 2011 http://www.electrictoolbox.com/debian-ftp-server-hangs-on-list/ Ver mais about ip_conntrack_ftp