diff options
Diffstat (limited to 'roles/common')
| -rwxr-xr-x | roles/common/files/usr/local/sbin/update-firewall.sh | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/roles/common/files/usr/local/sbin/update-firewall.sh b/roles/common/files/usr/local/sbin/update-firewall.sh index 4050e9e..cfd2678 100755 --- a/roles/common/files/usr/local/sbin/update-firewall.sh +++ b/roles/common/files/usr/local/sbin/update-firewall.sh @@ -253,6 +253,7 @@ run() { # DROP bogus TCP packets. iptables -A INPUT -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -j DROP iptables -A INPUT -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -j DROP + iptables -A INPUT -p tcp \! --syn -m state --state NEW -j DROP # Allow all input/output to/from the loopback interface. local localhost=$(inet46 $f '127.0.0.1/32' '::1/128') @@ -278,11 +279,12 @@ run() { # net.ipv4.icmp_ratemask runtime options). See icmp(7). local t for t in 'echo-reply' 'destination-unreachable' 'echo-request'; do - iptables -A INPUT -i $if -p icmp -m icmp --icmp-type $t -j ACCEPT - iptables -A OUTPUT -o $if -p icmp -m icmp --icmp-type $t -j ACCEPT + iptables -A INPUT -p icmp -m icmp --icmp-type $t -j ACCEPT + iptables -A OUTPUT -p icmp -m icmp --icmp-type $t -j ACCEPT done elif [ $f = 6 ]; then - iptables -A INPUT -i $ip -p icmpv6 -j ACCEPT + iptables -A INPUT -p icmpv6 -j ACCEPT + iptables -A OUTPUT -p icmpv6 -j ACCEPT fi |