92 lines
3.9 KiB
Bash
Executable File
92 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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#move to script directory so all relative paths work
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cd "$(dirname "$0")"
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#add the includes
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. ./config.sh
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. ./colors.sh
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. ./environment.sh
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#send a message
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verbose "Configuring IPTables"
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#defaults to nftables by default this enables iptables
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if [ ."$os_codename" = ."buster" ]; then
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update-alternatives --set iptables /usr/sbin/iptables-legacy
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update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
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fi
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if [ ."$os_codename" = ."bullseye" ]; then
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apt-get install -y iptables
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update-alternatives --set iptables /usr/sbin/iptables-legacy
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update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
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fi
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#remove ufw
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ufw reset
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ufw disable
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apt-get remove -y ufw
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#apt-get purge ufw
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iptables --delete-chain ufw-after-forward
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iptables --delete-chain ufw-after-input
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iptables --delete-chain ufw-after-logging-forward
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iptables --delete-chain ufw-after-logging-input
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iptables --delete-chain ufw-after-logging-output
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iptables --delete-chain ufw-after-output
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iptables --delete-chain ufw-before-forward
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iptables --delete-chain ufw-before-input
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iptables --delete-chain ufw-before-logging-forward
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iptables --delete-chain ufw-before-logging-input
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iptables --delete-chain ufw-before-logging-output
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iptables --delete-chain ufw-before-output
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iptables --delete-chain ufw-reject-forward
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iptables --delete-chain ufw-reject-input
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iptables --delete-chain ufw-reject-output
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iptables --delete-chain ufw-track-forward
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iptables --delete-chain ufw-track-input
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iptables --delete-chain ufw-track-output
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#flush iptables
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iptables -P INPUT ACCEPT
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iptables -P FORWARD ACCEPT
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iptables -P OUTPUT ACCEPT
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iptables -F
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#run iptables commands
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iptables -A INPUT -i lo -j ACCEPT
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iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "system " --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "system " --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "exec." --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "exec." --algo bm --icase
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iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
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iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
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iptables -A INPUT -p tcp --dport 22 -j ACCEPT
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iptables -A INPUT -p tcp --dport 80 -j ACCEPT
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iptables -A INPUT -p tcp --dport 443 -j ACCEPT
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iptables -A INPUT -p tcp --dport 7443 -j ACCEPT
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iptables -A INPUT -p tcp --dport 5060:5091 -j ACCEPT
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iptables -A INPUT -p udp --dport 5060:5091 -j ACCEPT
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iptables -A INPUT -p udp --dport 16384:32768 -j ACCEPT
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iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
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iptables -A INPUT -p udp --dport 1194 -j ACCEPT
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iptables -t mangle -A OUTPUT -p udp -m udp --sport 16384:32768 -j DSCP --set-dscp 46
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iptables -t mangle -A OUTPUT -p udp -m udp --sport 5060:5091 -j DSCP --set-dscp 26
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iptables -t mangle -A OUTPUT -p tcp -m tcp --sport 5060:5091 -j DSCP --set-dscp 26
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iptables -P INPUT DROP
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iptables -P FORWARD DROP
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iptables -P OUTPUT ACCEPT
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#save iptables to make it persistent
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mkdir /etc/iptables
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iptables-save > /etc/iptables/rules.v4
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