Something

iptables -P INPUT ACCEPT
iptables -F INPUT
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 25 -j ACCEPT
#softlayer ips
iptables -A INPUT -s 10.4.20.194 -j ACCEPT
iptables -A INPUT -s 66.228.118.0/24 -j ACCEPT
iptables -A INPUT -s 255.255.255.0/24 -j ACCEPT
iptables -A INPUT -s 10.1.0.0/16 -j ACCEPT
iptables -A INPUT -s 255.255.224.0/24 -j ACCEPT
iptables -A INPUT -s 10.0.64.0/24 -j ACCEPT
#scott
iptables -A INPUT -s 82.40.112.42 -j ACCEPT
#brendan
iptables -A INPUT -s 203.171.88.80 -j ACCEPT
#matt
iptables -A INPUT -s 66.67.122.73 -j ACCEPT
iptables -A INPUT -j REJECT