From 8ee2bdec4d8a8ecb923d432395c2559eb1fefe69 Mon Sep 17 00:00:00 2001 From: Dan Schaper Date: Sun, 1 Jan 2017 14:38:10 -0800 Subject: [PATCH] Plain grep, escape the special characters. Signed-off-by: Dan Schaper --- automated install/basic-install.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/automated install/basic-install.sh b/automated install/basic-install.sh index 0f5942a9..41594a91 100755 --- a/automated install/basic-install.sh +++ b/automated install/basic-install.sh @@ -891,7 +891,7 @@ configureFirewall() { elif modinfo ip_tables &> /dev/null; then # If chain Policy is not ACCEPT or last Rule is not ACCEPT # then check and insert our Rules above the DROP/REJECT Rule. - if iptables -S INPUT | head -n1 | grep -qv 'ACCEPT$' || iptables -S INPUT | tail -n1 | grep -qv '(^-A\|^-P).*ACCEPT$'; then + if iptables -S INPUT | head -n1 | grep -qv '^-P.*ACCEPT$' || iptables -S INPUT | tail -n1 | grep -qv '^-\(A\|P\).*ACCEPT$'; then # Check chain first, otherwise a new rule will duplicate old ones echo "::: Configuring iptables for httpd and dnsmasq.." iptables -C INPUT -p tcp -m tcp --dport 80 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 80 -j ACCEPT