iptables -A INPUT -p tcp -s 192.168.1.100 --dport 80 -j REJEC
# wget http://www.groad.net/logo.png
--2012-05-11 14:19:36-- http://www.groad.net/logo.png
Resolving www.groad.net... 184.22.140.27
Connecting to www.groad.net|184.22.140.27|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 18577 (18K) [image/png]
Saving to: “logo.png”
100%[========================================================================>] 18,577 --.-K/s in 0.1s
2012-05-11 14:19:37 (159 KB/s) - “logo.png” saved [18577/18577]
iptables -A INPUT -p tcp -s www.groad.net --sport 80 -j REJECT
iptables -A INPUT -s www.groad.net --sport 80 -j REJECT
iptables -A INPUT -p tcp -s www.groad.net --sport 80 -j REJECT
iptables -A INPUT -p udp -s www.groad.net --sport 80 -j REJECT
iptables -A INPUT -p icmp -s www.groad.net --sport 80 -j REJECT
# iptables -A INPUT -p icmp -s www.groad.net --sport 80 -j REJECT
iptables v1.4.10: unknown option `--sport'
Try `iptables -h' or 'iptables --help' for more information.
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