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add -n flag to iptables -L to prevent DNS resolution

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This commit is contained in:
Paweł Krawczyk
2016-04-25 17:49:52 +01:00
parent c3c83c5092
commit 125a3ac74f
1 changed files with 3 additions and 3 deletions
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6
blacklist.sh
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@@ -84,15 +84,15 @@ else
fi
# create main blocklists chain
if ! iptables -L | grep -q "Chain ${blocklist_chain_name}"; then
if ! iptables -nL | grep -q "Chain ${blocklist_chain_name}"; then
iptables -N ${blocklist_chain_name}
fi
# inject references to blocklist in the beginning of input and forward chains
if ! iptables -L ${INPUT} | grep -q ${blocklist_chain_name}; then
if ! iptables -nL ${INPUT} | grep -q ${blocklist_chain_name}; then
iptables -I ${INPUT} 1 ${IN_OPT} -j ${blocklist_chain_name}
fi
if ! iptables -L ${FORWARD} | grep -q ${blocklist_chain_name}; then
if ! iptables -nL ${FORWARD} | grep -q ${blocklist_chain_name}; then
iptables -I ${FORWARD} 1 ${IN_OPT} -j ${blocklist_chain_name}
fi