i was wondering if it's possible to add iptables rules based on unsuccessful logins to the ftp server.
for example, i'm running proftp, and the account to access my ftp site is NOT 'ftp'. so i have a lot of sessions opened and closed, but no successful logins. there's only a few people that i want to have access to my site, but their ip doesnt stay the same. so i want to be able to look at the logs, and when it sees a connection opened, then closed with no success, it adds the ip as an iptable rule.
thanks in advance
