Easy-Guacamole-Installer/add-ssl-guac-gaucd.sh
itiligent 5032e5ba29 v1.5.1.2
add scripts improved, backup gaucd before nginx, standalone install of ssl for existing nginx, allow space in sql passwords, added upgrade script, improved tomcat self detection, simplified how SSL scrips detect local settings, many tidy ups
2023-05-11 00:15:51 +10:00

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