Created
February 17, 2024 19:45
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VPN Manager Script
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#!/bin/bash | |
PS3="Select item: " | |
function vpnActive() { | |
ip -f inet addr show tun0 > /dev/null 2>&1 | |
if [ $? -eq 0 ] ; then return 0 ; else return 1 ; fi | |
} | |
function d2b() { | |
printf "%08d" $(echo "obase=2;$1"|bc) | |
} | |
function getPortForwarding { | |
if vpnActive | |
then | |
IPv4_ADDR=$(ip -f inet addr show tun0 | awk '/inet / {print $2}' | cut -d'/' -f1) | |
IFS='.' read -ra ADDR <<< "$IPv4_ADDR" | |
port_bin="$(d2b ${ADDR[2]})$(d2b ${ADDR[3]})" | |
port_dec=$(printf "%04d" $(echo "ibase=2;${port_bin:4}"|bc)) | |
echo "" | |
echo "Usable Ports for PortFowarding:" | |
for i in 1 2 3; do | |
echo "$i$port_dec" | |
done | |
else | |
echo "" | |
echo "VPN not active!" | |
fi | |
} | |
function connect { | |
echo "" | |
if [[ ${1:0:3} != "HTB" ]] | |
then | |
echo "Enabling kill switch" | |
sudo ufw enable | |
fi | |
echo $1 > /tmp/vpn.tmp | |
echo "Starting VPN $1" | |
sudo systemctl start openvpn-client@$1 | |
exit 0 | |
} | |
function disconnect { | |
echo "" | |
if test -f "/tmp/vpn.tmp"; then | |
VPN=$(cat /tmp/vpn.tmp) | |
echo "Disconnect from VPN $VPN" | |
sudo systemctl stop openvpn-client@$VPN | |
rm -f /tmp/vpn.tmp | |
if [[ ${VPN:0:3} != "HTB" ]] | |
then | |
echo "Disable kill switch" | |
sudo ufw disable | |
fi | |
exit 0 | |
else | |
echo "No active VPN found!" | |
exit 1 | |
fi | |
} | |
function menuHTB { | |
items=( | |
"HTB_Academy" | |
"HTB_Server" | |
"HTB_StartingPoint" | |
) | |
select item in "${items[@]}" | |
do | |
case $REPLY in | |
q) exit 0;; | |
*) | |
if [ -z "$item" ]; then echo "Invalid choice!"; menuHTB; else connect $item; fi | |
exit 0;; | |
esac | |
done | |
} | |
function menuPerfectPrivacy { | |
items=( | |
"Amsterdam" | |
"Basel" | |
"Belgrade" | |
"Berlin" | |
"Calais" | |
"Chicago" | |
"Copenhagen" | |
"Dallas" | |
"Erfurt" | |
"Frankfurt" | |
"Hamburg" | |
"Hongkong" | |
"Jerusalem" | |
"London" | |
"LosAngeles" | |
"Madrid" | |
"Malmoe" | |
"Manchester" | |
"Miami" | |
"Milan" | |
"Montreal" | |
"Moscow" | |
"NewYork" | |
"Nuremberg" | |
"Oslo" | |
"Paris" | |
"Prague" | |
"Reykjavik" | |
"Riga" | |
"Rotterdam" | |
"Singapore" | |
"Stockholm" | |
"Sydney" | |
"Tokyo" | |
"Vienna" | |
"Warsaw" | |
"Zurich" | |
) | |
select item in "${items[@]}" | |
do | |
case $REPLY in | |
q) exit 0;; | |
*) | |
if [ -z "$item" ]; then echo "Invalid choice!"; menuPerfectPrivacy; else connect $item; fi | |
exit 0;; | |
esac | |
done | |
} | |
echo "VPN Manager:" | |
select item in "HackTheBox" "Perfect Privacy" "PortForwarding" "Disconnect" "Quit" | |
do | |
case $REPLY in | |
1) menuHTB; break;; | |
2) menuPerfectPrivacy; break;; | |
3) getPortForwarding; break;; | |
4|x|d) disconnect; break;; | |
5|q) exit 0; break;; | |
esac | |
done |
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