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https://github.com/itiligent/Easy-Guacamole-Installer.git
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102 lines
2.8 KiB
Bash
102 lines
2.8 KiB
Bash
#!/bin/bash
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#######################################################################################################################
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# Harden Guacd <-> Guac client traffic in SSL wrapper
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# For Ubuntu / Debian / Raspian
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# David Harrop
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# April 2023
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#######################################################################################################################
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# Prepare text output colours
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GREY='\033[0;37m'
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DGREY='\033[0;90m'
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GREYB='\033[1;37m'
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RED='\033[0;31m'
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LRED='\033[0;91m'
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GREEN='\033[0;32m'
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LGREEN='\033[0;92m'
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YELLOW='\033[0;33m'
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LYELLOW='\033[0;93m'
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BLUE='\033[0;34m'
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LBLUE='\033[0;94m'
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CYAN='\033[0;36m'
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LCYAN='\033[0;96m'
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MAGENTA='\033[0;35m'
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LMAGENTA='\033[0;95m'
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NC='\033[0m' #No Colour
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CERT_COUNTRY=
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CERT_STATE=
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CERT_LOCATION=
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CERT_ORG=
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CERT_OU=
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clear
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if ! [ $( id -u ) = 0 ]; then
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echo
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echo -e "${LGREEN}Please run this script as sudo or root${NC}" 1>&2
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exit 1
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fi
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# Create the special directory for guacd ssl certfifacte and key.
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sudo mkdir /etc/guacamole/ssl
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echo
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cat <<EOF | tee -a cert_attributes.txt
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[req]
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distinguished_name = req_distinguished_name
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x509_extensions = v3_req
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prompt = no
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string_mask = utf8only
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[req_distinguished_name]
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C = $CERT_COUNTRY
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ST = $CERT_STATE
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L = $CERT_LOCATION
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O = $CERT_ORG
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OU = $CERT_OU
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CN = localhost
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[v3_req]
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keyUsage = nonRepudiation, digitalSignature, keyEncipherment
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extendedKeyUsage = serverAuth, clientAuth, codeSigning, emailProtection
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subjectAltName = @alt_names
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[alt_names]
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DNS.1 = localhost
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IP.1 = 127.0.0.1
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EOF
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# Create the self signining request, certificate & key
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sudo openssl req -x509 -nodes -days 36500 -newkey rsa:2048 -keyout /etc/guacamole/ssl/guacd.key -out /etc/guacamole/ssl/guacd.crt -config cert_attributes.txt
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rm -f cert_attributes.txt
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# Point Gaucamole config file to certificate any key
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sudo cat <<EOF | sudo tee /etc/guacamole/guacd.conf
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[server]
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bind_host = 127.0.0.1
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bind_port = 4822
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[ssl]
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server_certificate = /etc/guacamole/ssl/guacd.crt
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server_key = /etc/guacamole/ssl/guacd.key
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EOF
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# Enable SSL backend
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sudo cat <<EOF | sudo tee -a /etc/guacamole/guacamole.properties
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guacd-ssl: true
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EOF
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# Fix required permissions as guacd only runs as daemon
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sudo chown daemon:daemon /etc/guacamole/ssl
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sudo chown daemon:daemon /etc/guacamole/ssl/guacd.key
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sudo chown daemon:daemon /etc/guacamole/ssl/guacd.crt
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sudo chmod 644 /etc/guacamole/ssl/guacd.crt
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sudo chmod 644 /etc/guacamole/ssl/guacd.key
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# Add the new certificate into the Java Runtime certificate store and set JRE to trust it.
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cd /etc/guacamole/ssl
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sudo keytool -importcert -alias guacd -noprompt -cacerts -storepass changeit -file guacd.crt
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sudo systemctl restart guacd
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echo
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echo "Done!"
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echo -e ${NC}
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