Hello
i'm testing my SSH server from an external IP (my mate's pc)
and i've noticed than whenever i allow connections on eth0 with dport 22
i can see the username login page BUT, if apply the following rules
the usual user name cannot be displayed
$IPTABLES -A TCPbad -p tcp --tcp-flags SYN,ACK SYN,ACK -m state --state NEW
-j REJECT --reject-with tcp-reset
$IPTABLES -A TCPbad -p tcp ! --syn -m state --state NEW -j DROP # DROP NEW
NOT SYN
$IPTABLES -A TCPbad -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #DROP SYN-FIN
SCANS
$IPTABLES -A TCPbad -p tcp --tcp-flags SYN,RST SYN,RST -j DROP #DROP SYN-RST
SCANS
$IPTABLES -A TCPbad -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP #DROP X-MAS
SCANS
$IPTABLES -A TCPbad -p tcp --tcp-flags ALL FIN -j DROP #DROP NMAP FIN SCAN
$IPTABLES -A TCPbad -p tcp --tcp-flags ALL NONE -j DROP #DROP NULL SCANS
$IPTABLES -A TCPbad -p tcp --tcp-flags ALL ALL -j DROP #DROP ALL/ALL SCANS
any help very appreciated
