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Conntrack fixes

master
bbruns 2013-11-13 06:24:11 +00:00
parent f672757084
commit cdbf821084
2 changed files with 4 additions and 3 deletions
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1
ChangeLog
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@ -1,5 +1,6 @@
1.1 - Brielle Bruns <bruns@2mbit.com>
- Reorder rules, place allow before block to allow overrides
- Fixes for conntrack rules for better security (added -o)
1.0 - Brielle Bruns <bruns@2mbit.com>
- Minor tweaks to various config files

6
bin/firewall-sosdg
View File

@ -700,9 +700,9 @@ if [ $NAT ]; then
SNAT)
$IPTABLES -A POSTROUTING -t nat -s ${NAT_RULE[2]} -j SNAT \
-o ${NAT_RULE[3]} --to-source ${NAT_RULE[4]}
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} NEW,RELATED,ESTABLISHED -i ${NAT_RULE[1]} -s ${NAT_RULE[2]} -j ACCEPT
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -o ${NAT_RULE[1]} -d ${NAT_RULE[2]} -j ACCEPT
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} INVALID -o ${NAT_RULE[1]} -d ${NAT_RULE[2]} -j DROP
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} NEW,RELATED,ESTABLISHED -i ${NAT_RULE[1]} -s ${NAT_RULE[2]} -o ${NAT_RULE[3]} -j ACCEPT
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -o ${NAT_RULE[1]} -d ${NAT_RULE[2]} -o ${NAT_RULE[3]} -j ACCEPT
$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} INVALID -o ${NAT_RULE[1]} -d ${NAT_RULE[2]} -o ${NAT_RULE[3]} -j DROP
display_c DEFAULT "\t${GREEN}SNAT:${PURPLE}${NAT_RULE[1]}:${NAT_RULE[2]}${AQUA}->${BLUE}${NAT_RULE[3]}:${NAT_RULE[4]}"
if [[ ! "$INIF_EXISTS" =~ "${NAT_RULE[1]}:${NAT_RULE[2]}" ]]; then
$IPTABLES -A INPUT -p icmp --icmp-type time-exceeded -i ${NAT_RULE[1]} \