160 lines
3.9 KiB
Bash
Executable File
160 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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printf "Better to run as root, because of permisions handeling.\n"
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sleep 2
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printf "Do you want to set up firewall rules by iptables? [Y/n]: \n"
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read ansFirewallSetup
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if [[ "$ansFirewallSetup" =~ ("N"|"n") ]]; then
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printf "+ Thanks, working on next bit\n"
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else
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printf "Do you want to block non-LAN ssh connections? [Y/n/castom]: "
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read sshBlockRange
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if [[ $sshBlockRange =~ ("n"|"N") ]]; then
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printf "+ OK, working on next bit\n"
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ipList=""
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elif [[ $sshBlockRange =~ ("y"|"Y") || -z $sshBlockRange ]]; then
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#Pipes all informations about ip interfaces
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ipList=$(ip -o -4 a show scope global)
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#Founds data in pattern
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ipList=$(echo $ipList | grep -Eo "([0-9]*\.){3}[0-9]*/[0-9]*")
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#substitues space for coma
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ipList=$(echo $ipList | tr " " ",")
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printf "+ Accepting SSH connections only on these ip's: $ipList\n"
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else
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printf "\nHope you know what you are doing, I am not checking these :]"
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printf "\nSubmit your IP range to acces SSH in format 192.168.1.1/24
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\nYour IP range: "
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read ipList
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printf "\n+ Allowing SSH on this range: $ipList \n"
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fi
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fi
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sleep 2
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# Just to be shure
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printf "\n+ Starting to upgrade base system\n\n"
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sudo apt update
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sudo apt upgrade -y
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# Installing depandencies
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printf "\n+ Installing depandencies \n\n"
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sudo apt install openjdk-17-jre-headless screen p7zip-full -y
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if [[ "$ansFirewallSetup" =~ ("Y"|"y") || -z $ansFirewallSetup ]]; then
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sudo apt install iptables -y
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fi
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# User and groupe managment
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printf "\n+ Creating user minecraft and basic file structure"
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groupadd minecraft
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useradd --system --shell /usr/sbin/nologin --home /opt/minecraft -g minecraft minecraft
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# File strukture and basic install
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mkdir /opt/minecraft
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mv data/Forge-1.20.1.jar /opt/minecraft/
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cd /opt/minecraft/
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# Installing server
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printf "+ Installing Forge 1.20.1 \n \n"
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java -Xms512M -Xmx2048M -jar Forge-1.20.1.jar --installServer
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cd -
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cd data/
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mv eula.txt server-icon.png server.properties run.sh user_jvm_args.txt /opt/minecraft/
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cd ..
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mkdir /opt/minecraft/mods
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printf "\n+ Unpacking mods \n \n"
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cd data
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7z x Mods.zip -o/opt/minecraft/mods/
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cd ..
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# Permision handeling
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printf "\n+ Permision handeling\n"
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chown -R minecraft:minecraft /opt/minecraft
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# SystemD service
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printf "+ Preparign systemD service\n"
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mv data/mc-forge.service /etc/systemd/system/
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systemctl daemon-reload
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systemctl start mc-forge.service
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systemctl enable mc-forge
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# integration of Maxopoly's instructions on firewall
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if [[ "$ansFirewallSetup" =~ ("Y"|"y") || -z "$ansFirewallSetup" ]]; then
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printf "+ Executing firewall setup"
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iptables -P INPUT ACCEPT #Clears existing rules
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iptables -A INPUT -i lo -j ACCEPT #Allow loopback
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iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT #Allow continuing connections
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iptables -A INPUT -p tcp --dport 22 --source $ipList -j ACCEPT #Allow ssh from set network
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iptables -A INPUT -p tcp --dport 25565 -j ACCEPT #Allow MC port
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iptables -L ### Good place to paste a manual check to not lock yourself out
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printf "\n Does it looks right? [Y/n]: "
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read ansFirewallOK
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if [[ "$ansFirewallOK" =~ ("Y"|"y") || -z "$ansFirewallOK" ]]; then
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iptables -P INPUT DROP #Disallow everythink else
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iptables -P FORWARD DROP #Block all forwarding
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iptables -P OUTPUT ACCEPT #Allow all outgouing
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sudo apt install iptables-persistent -y
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else
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printf "\nOK it is time for manual configuration"
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printf "\nAfter you are done ramamber to run 'apt install iptables-persistent' to save your config. System will automaticly remove your work after restart"
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fi
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fi
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printf "\n+ Done, thanks for your time. It is goode idea to chack if everythink is alright by running:"
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printf "\nsystemctl status mc-forge"
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printf "\nsu minecraft -s /bin/bash"
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printf "\n+ it is good idea to have some fun with screen before trying to open minecraft conesole 'screen -r' while loged wia minecraft user"
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