Enhance Guacamole install script with TightVNC setup
Updated Guacamole installation script to include TightVNC configuration and improved comments. Adjusted MySQL user creation and password rotation process.
This commit is contained in:
Christian Krakau-Louis
committed by
GitHub
GitHub
parent
f3f68ae7d5
commit
b3159ebdcb
+167
-89
@@ -3,7 +3,7 @@ set -euo pipefail
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# ============================================================
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# Guacamole Install Script (Ubuntu 24.04+, ARM/AMD)
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# With built-in monitoring (screen + htop + iftop + logs)
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# With tmux dashboard, guacd IPv4 bind, and TightVNC (root)
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# ============================================================
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GUACVERSION="1.5.5"
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@@ -12,7 +12,7 @@ GUAC_DB="guacamole_db"
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TOMCAT_VER=9.0.109
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CRED_FILE="/root/guacamole-credentials.txt"
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# Temporary bootstrap passwords
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# Temporary bootstrap passwords (rotated at end)
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MYSQL_ROOT_PWD="root"
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GUAC_PWD="guac"
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@@ -21,8 +21,7 @@ BLUE='\033[0;34m'
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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NC='\033[0m'
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log() { echo -e "$@"; }
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log(){ echo -e "$@"; }
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# ============================================================
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# Monitoring setup (tmux split screen)
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@@ -35,37 +34,29 @@ if [ -z "${INSIDE_TMUX:-}" ]; then
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SCRIPT_PATH="$(realpath "$0")"
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SCRIPT_CMD="INSIDE_TMUX=1 bash \"$SCRIPT_PATH\" $*"
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# Start tmux with installer in first window
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tmux new-session -d -s guac-install \
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"echo '>>> Running: $SCRIPT_CMD'; sleep 3; $SCRIPT_CMD"
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# Add monitoring windows
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tmux split-window -h "htop"
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tmux split-window -v -t 0 "iftop -i \$(ip -o -4 route show to default | awk '{print \$5}' | head -n1)"
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tmux split-window -v -t 1 "tail -f /var/log/syslog"
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tmux select-layout tiled
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tmux attach -t guac-install
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# Exit bootstrapper after attaching
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exit 0
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fi
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# ============================================================
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# Hostname detection (reverse DNS of IPv4)
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# Detect SERVER_NAME (IPv4 reverse DNS default)
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# ============================================================
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SERVER_NAME=${SERVER_NAME:-}
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if [ -z "$SERVER_NAME" ]; then
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PUBIP=$(curl -4 -s ifconfig.me || echo "")
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if [ -n "$PUBIP" ]; then
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apt-get install -y -qq dnsutils >/dev/null 2>&1 || true
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REVNAME=$(dig +short -x $PUBIP @8.8.8.8 | sed 's/\.$//' || true)
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REVNAME=$(dig +short -x "$PUBIP" @8.8.8.8 | sed 's/\.$//' || true)
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DEFAULT_NAME=${REVNAME:-$PUBIP}
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else
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DEFAULT_NAME="localhost"
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fi
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if [ -t 0 ]; then
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read -p "Enter server name for Nginx/Let's Encrypt [${DEFAULT_NAME}]: " SERVER_NAME
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SERVER_NAME=${SERVER_NAME:-$DEFAULT_NAME}
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@@ -95,11 +86,11 @@ DEBIAN_FRONTEND=noninteractive apt-get install -yq \
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if ! command -v java >/dev/null 2>&1; then
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apt-get install -y openjdk-17-jre-headless
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fi
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JAVA_HOME=$(dirname $(dirname $(readlink -f $(which java))))
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JAVA_HOME=$(dirname "$(dirname "$(readlink -f "$(which java)")")")
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log "${GREEN}JAVA_HOME=${JAVA_HOME}${NC}"
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# ============================================================
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# Firewall
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# Firewall basics (web only – VNC stays localhost)
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# ============================================================
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ufw --force enable
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ufw allow ssh
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@@ -108,16 +99,16 @@ ufw allow 443/tcp
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ufw reload
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# ============================================================
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# Tomcat
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# Tomcat 9
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# ============================================================
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if [ ! -d /opt/apache-tomcat-${TOMCAT_VER} ]; then
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log "${BLUE}>>> Installing Tomcat ${TOMCAT_VER}...${NC}"
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cd /opt
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wget -q https://downloads.apache.org/tomcat/tomcat-9/v${TOMCAT_VER}/bin/apache-tomcat-${TOMCAT_VER}.tar.gz
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tar -xzf apache-tomcat-${TOMCAT_VER}.tar.gz
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ln -sfn apache-tomcat-${TOMCAT_VER} tomcat9
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useradd -r -s /usr/sbin/nologin tomcat || true
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chown -R tomcat:tomcat /opt/apache-tomcat-${TOMCAT_VER}
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wget -q "https://downloads.apache.org/tomcat/tomcat-9/v${TOMCAT_VER}/bin/apache-tomcat-${TOMCAT_VER}.tar.gz"
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tar -xzf "apache-tomcat-${TOMCAT_VER}.tar.gz"
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ln -sfn "apache-tomcat-${TOMCAT_VER}" tomcat9
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id -u tomcat >/dev/null 2>&1 || useradd -r -s /usr/sbin/nologin tomcat
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chown -R tomcat:tomcat "/opt/apache-tomcat-${TOMCAT_VER}"
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cat > /etc/systemd/system/tomcat9.service <<EOF
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[Unit]
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Description=Apache Tomcat 9
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@@ -142,28 +133,28 @@ systemctl daemon-reload
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systemctl enable --now tomcat9
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# ============================================================
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# Guacamole
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# Guacamole (server + webapp + JDBC)
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# ============================================================
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cd /root
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SERVER="https://downloads.apache.org/guacamole/${GUACVERSION}"
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wget -q ${SERVER}/source/guacamole-server-${GUACVERSION}.tar.gz -O guacamole-server-${GUACVERSION}.tar.gz
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tar -xzf guacamole-server-${GUACVERSION}.tar.gz
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wget -q ${SERVER}/binary/guacamole-${GUACVERSION}.war -O /etc/guacamole.war
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wget -q ${SERVER}/binary/guacamole-auth-jdbc-${GUACVERSION}.tar.gz -O guacamole-auth-jdbc-${GUACVERSION}.tar.gz
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tar -xzf guacamole-auth-jdbc-${GUACVERSION}.tar.gz
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SERVER_URL="https://downloads.apache.org/guacamole/${GUACVERSION}"
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wget -q "${SERVER_URL}/source/guacamole-server-${GUACVERSION}.tar.gz" -O "guacamole-server-${GUACVERSION}.tar.gz"
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tar -xzf "guacamole-server-${GUACVERSION}.tar.gz"
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wget -q "${SERVER_URL}/binary/guacamole-${GUACVERSION}.war" -O /etc/guacamole.war
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wget -q "${SERVER_URL}/binary/guacamole-auth-jdbc-${GUACVERSION}.tar.gz" -O "guacamole-auth-jdbc-${GUACVERSION}.tar.gz"
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tar -xzf "guacamole-auth-jdbc-${GUACVERSION}.tar.gz"
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if ! command -v guacd >/dev/null 2>&1; then
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cd guacamole-server-${GUACVERSION}
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cd "guacamole-server-${GUACVERSION}"
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./configure --with-systemd-dir=/etc/systemd/system
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make -j$(nproc)
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make -j"$(nproc)"
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make install
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ldconfig
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cd ..
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fi
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# ---------------- guacd: systemd unit (if not present) ----------------
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if [ ! -f /etc/systemd/system/guacd.service ]; then
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cat > /etc/systemd/system/guacd.service <<EOF
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cat > /etc/systemd/system/guacd.service <<'EOF'
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[Unit]
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Description=Guacamole proxy daemon
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After=network.target
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@@ -178,18 +169,29 @@ Group=daemon
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WantedBy=multi-user.target
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EOF
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fi
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systemctl daemon-reload
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# ---------------- Configuring guacd (force IPv4) ----------------
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# Bind to 127.0.0.1:4822 to avoid ::1-only bind causing "Connection refused"
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log "${BLUE}Configuring guacd (IPv4 bind)...${NC}"
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mkdir -p /etc/guacamole
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cat > /etc/guacamole/guacd.conf <<'EOF'
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[server]
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bind_host = 127.0.0.1
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bind_port = 4822
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EOF
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systemctl daemon-reexec
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systemctl enable --now guacd
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# Webapp + JDBC extension
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mkdir -p /etc/guacamole/extensions /etc/guacamole/lib
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cp /etc/guacamole.war /opt/tomcat9/webapps/guacamole.war
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cp guacamole-auth-jdbc-${GUACVERSION}/mysql/guacamole-auth-jdbc-mysql-${GUACVERSION}.jar /etc/guacamole/extensions/
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cp "guacamole-auth-jdbc-${GUACVERSION}/mysql/guacamole-auth-jdbc-mysql-${GUACVERSION}.jar" /etc/guacamole/extensions/
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# ============================================================
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# JDBC Connector
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# JDBC Connector (prefer MariaDB, fallback to MySQL Connector/J)
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# ============================================================
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log "${BLUE}>>> Installing JDBC driver for MySQL/MariaDB...${NC}"
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if apt-cache show libmariadb-java 2>/dev/null | grep -q Package; then
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if apt-cache show libmariadb-java 2>/dev/null | grep -q '^Package:'; then
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apt-get install -y libmariadb-java
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ln -sf /usr/share/java/mariadb-java-client.jar /etc/guacamole/lib/mysql-connector-java.jar
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log "${GREEN}MariaDB JDBC connector installed.${NC}"
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@@ -202,45 +204,34 @@ else
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fi
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# ============================================================
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# MySQL setup
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# MySQL / MariaDB
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# ============================================================
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# Set root password (switch from unix_socket to password)
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mysql -u root <<EOF
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ALTER USER 'root'@'localhost' IDENTIFIED BY '${MYSQL_ROOT_PWD}';
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EOF
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if ! mysql -u root -p${MYSQL_ROOT_PWD} -e "USE ${GUAC_DB}" 2>/dev/null; then
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mysql -u root -p${MYSQL_ROOT_PWD} -e "CREATE DATABASE ${GUAC_DB};"
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# DB + user
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if ! mysql -u root -p"${MYSQL_ROOT_PWD}" -e "USE ${GUAC_DB}" 2>/dev/null; then
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mysql -u root -p"${MYSQL_ROOT_PWD}" -e "CREATE DATABASE ${GUAC_DB};"
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fi
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USER_EXISTS=$(mysql -u root -p${MYSQL_ROOT_PWD} -e "SELECT COUNT(*) FROM mysql.user WHERE user='${GUAC_USER}';" -s --skip-column-names)
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USER_EXISTS=$(mysql -u root -p"${MYSQL_ROOT_PWD}" -Nse "SELECT COUNT(*) FROM mysql.user WHERE user='${GUAC_USER}'")
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if [ "$USER_EXISTS" -eq 0 ]; then
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mysql -u root -p${MYSQL_ROOT_PWD} -e "CREATE USER '${GUAC_USER}'@'localhost' IDENTIFIED BY '${GUAC_PWD}';"
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mysql -u root -p${MYSQL_ROOT_PWD} -e "GRANT SELECT,INSERT,UPDATE,DELETE ON ${GUAC_DB}.* TO '${GUAC_USER}'@'localhost'; FLUSH PRIVILEGES;"
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mysql -u root -p"${MYSQL_ROOT_PWD}" -e "CREATE USER '${GUAC_USER}'@'localhost' IDENTIFIED BY '${GUAC_PWD}';"
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mysql -u root -p"${MYSQL_ROOT_PWD}" -e "GRANT SELECT,INSERT,UPDATE,DELETE ON ${GUAC_DB}.* TO '${GUAC_USER}'@'localhost'; FLUSH PRIVILEGES;"
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fi
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if ! mysql -u root -p${MYSQL_ROOT_PWD} -D ${GUAC_DB} -e "SHOW TABLES;" | grep -q guacamole_user; then
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cat guacamole-auth-jdbc-${GUACVERSION}/mysql/schema/*.sql | mysql -u root -p${MYSQL_ROOT_PWD} ${GUAC_DB}
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# Schema load (first time)
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if ! mysql -u root -p"${MYSQL_ROOT_PWD}" -D "${GUAC_DB}" -e "SHOW TABLES;" | grep -q '^guacamole_user$'; then
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cat "guacamole-auth-jdbc-${GUACVERSION}/mysql/schema/"*.sql | mysql -u root -p"${MYSQL_ROOT_PWD}" "${GUAC_DB}"
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fi
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# Inject default VNC and SSH connections
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mysql -u root -p${MYSQL_ROOT_PWD} ${GUAC_DB} <<'EOF'
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INSERT INTO guacamole_connection (connection_name, protocol) VALUES ('Default VNC', 'vnc');
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SET @CID = LAST_INSERT_ID();
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INSERT INTO guacamole_connection_parameter (connection_id, parameter_name, parameter_value)
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VALUES (@CID, 'hostname', 'localhost'), (@CID, 'port', '5901');
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INSERT INTO guacamole_connection_permission (entity_id, connection_id, permission)
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SELECT entity_id, @CID, perm FROM guacamole_entity, (SELECT 'READ' AS perm UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'ADMINISTER') p WHERE name='guacadmin';
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INSERT INTO guacamole_connection (connection_name, protocol) VALUES ('Default SSH', 'ssh');
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SET @CID = LAST_INSERT_ID();
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INSERT INTO guacamole_connection_parameter (connection_id, parameter_name, parameter_value)
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VALUES (@CID, 'hostname', 'localhost'), (@CID, 'port', '22');
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INSERT INTO guacamole_connection_permission (entity_id, connection_id, permission)
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SELECT entity_id, @CID, perm FROM guacamole_entity, (SELECT 'READ' AS perm UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'ADMINISTER') p WHERE name='guacadmin';
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EOF
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mkdir -p /etc/guacamole
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# Explicitly set DB + guacd params & disable DB SSL (common cause of failures)
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cat > /etc/guacamole/guacamole.properties <<EOF
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guacd-hostname: 127.0.0.1
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guacd-port: 4822
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mysql-hostname: localhost
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mysql-port: 3306
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mysql-database: ${GUAC_DB}
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@@ -252,7 +243,7 @@ EOF
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systemctl restart tomcat9
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# ============================================================
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# Nginx reverse proxy
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# Nginx reverse proxy (root path "/")
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# ============================================================
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cat > /etc/nginx/sites-available/guacamole <<EOF
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server {
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@@ -273,8 +264,8 @@ EOF
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ln -sf /etc/nginx/sites-available/guacamole /etc/nginx/sites-enabled/guacamole
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nginx -t && systemctl reload nginx
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# Let's Encrypt
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if certbot --nginx -d ${SERVER_NAME} --non-interactive --agree-tos -m admin@${SERVER_NAME} --redirect; then
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# Let's Encrypt (fallback to self-signed)
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if certbot --nginx -d "${SERVER_NAME}" --non-interactive --agree-tos -m "admin@${SERVER_NAME}" --redirect; then
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log "${GREEN}Let's Encrypt OK.${NC}"
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else
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mkdir -p /etc/ssl/selfsigned
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@@ -309,31 +300,113 @@ EOF
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fi
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# ============================================================
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# Tailscale
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# TightVNC (root) + XFCE via systemd <-- NEW/UPDATED
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# ============================================================
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log "${BLUE}>>> Configuring TightVNC for root (localhost only)...${NC}"
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# Generate a random 8-char VNC password (TightVNC allows up to 8)
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VNC_PWD="$(tr -dc 'A-Za-z0-9' </dev/urandom | head -c 8 || true)"
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mkdir -p /root/.vnc
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printf "%s" "${VNC_PWD}" | vncpasswd -f > /root/.vnc/passwd
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chmod 600 /root/.vnc/passwd
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# xstartup launching XFCE
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cat > /root/.vnc/xstartup <<'EOF'
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#!/bin/sh
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unset SESSION_MANAGER
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unset DBUS_SESSION_BUS_ADDRESS
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xrdb $HOME/.Xresources
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startxfce4 &
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EOF
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chmod +x /root/.vnc/xstartup
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# systemd service for display :1 (port 5901), localhost only
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cat > /etc/systemd/system/vncserver@.service <<'EOF'
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[Unit]
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Description=TightVNC server on display %i
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After=network.target
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[Service]
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Type=forking
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User=root
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Group=root
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WorkingDirectory=/root
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PIDFile=/root/.vnc/%H:%i.pid
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# -localhost keeps it bound to 127.0.0.1 (not exposed)
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ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1
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ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 -localhost :%i
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ExecStop=/usr/bin/vncserver -kill :%i
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[Install]
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WantedBy=multi-user.target
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EOF
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systemctl daemon-reload
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systemctl enable --now vncserver@1.service
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# ============================================================
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# Create default Guacamole connections (VNC & SSH to localhost)
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# ============================================================
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mysql -u root -p"${MYSQL_ROOT_PWD}" "${GUAC_DB}" <<'EOF'
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-- VNC
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INSERT INTO guacamole_connection (connection_name, protocol)
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SELECT 'Default VNC','vnc' FROM DUAL
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WHERE NOT EXISTS (SELECT 1 FROM guacamole_connection WHERE connection_name='Default VNC');
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SET @CID := (SELECT connection_id FROM guacamole_connection WHERE connection_name='Default VNC');
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INSERT IGNORE INTO guacamole_connection_parameter (connection_id, parameter_name, parameter_value)
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VALUES (@CID,'hostname','localhost'),(@CID,'port','5901');
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-- Give guacadmin full perms on it
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INSERT IGNORE INTO guacamole_connection_permission (entity_id, connection_id, permission)
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SELECT e.entity_id, @CID, p.permission
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FROM guacamole_entity e
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JOIN (SELECT 'READ' AS permission UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'ADMINISTER') p
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WHERE e.name='guacadmin' AND e.type='USER';
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-- SSH
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INSERT INTO guacamole_connection (connection_name, protocol)
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SELECT 'Default SSH','ssh' FROM DUAL
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WHERE NOT EXISTS (SELECT 1 FROM guacamole_connection WHERE connection_name='Default SSH');
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SET @SID := (SELECT connection_id FROM guacamole_connection WHERE connection_name='Default SSH');
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INSERT IGNORE INTO guacamole_connection_parameter (connection_id, parameter_name, parameter_value)
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VALUES (@SID,'hostname','localhost'),(@SID,'port','22');
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INSERT IGNORE INTO guacamole_connection_permission (entity_id, connection_id, permission)
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SELECT e.entity_id, @SID, p.permission
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FROM guacamole_entity e
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JOIN (SELECT 'READ' AS permission UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'ADMINISTER') p
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WHERE e.name='guacadmin' AND e.type='USER';
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EOF
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systemctl restart tomcat9
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# ============================================================
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# Tailscale (optional, unchanged)
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# ============================================================
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log "${BLUE}>>> Installing Tailscale...${NC}"
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curl -fsSL https://tailscale.com/install.sh | sh
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systemctl enable --now tailscaled
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if [ -t 0 ]; then
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read -p "Enter Tailscale auth key (leave blank for interactive login): " TSKEY || true
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else
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TSKEY=""
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fi
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if [ -n "${TSKEY:-}" ]; then
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tailscale up --authkey=${TSKEY} --ssh
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tailscale up --authkey="${TSKEY}" --ssh
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else
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tailscale up --ssh
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fi
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# ============================================================
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# Rotate MySQL passwords at the end
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# Rotate MySQL passwords at the end (safe; updates guacamole.properties)
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# ============================================================
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FINAL_MYSQL_ROOT_PWD=$(openssl rand -base64 20)
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FINAL_GUAC_PWD=$(openssl rand -base64 20)
|
||||
|
||||
mysql -u root -proot -e "ALTER USER 'root'@'localhost' IDENTIFIED BY '${FINAL_MYSQL_ROOT_PWD}';"
|
||||
mysql -u root -p${FINAL_MYSQL_ROOT_PWD} -e "ALTER USER '${GUAC_USER}'@'localhost' IDENTIFIED BY '${FINAL_GUAC_PWD}'; FLUSH PRIVILEGES;"
|
||||
mysql -u root -p"${MYSQL_ROOT_PWD}" -e "ALTER USER 'root'@'localhost' IDENTIFIED BY '${FINAL_MYSQL_ROOT_PWD}';"
|
||||
mysql -u root -p"${FINAL_MYSQL_ROOT_PWD}" -e "ALTER USER '${GUAC_USER}'@'localhost' IDENTIFIED BY '${FINAL_GUAC_PWD}'; FLUSH PRIVILEGES;"
|
||||
|
||||
crudini --set /etc/guacamole/guacamole.properties '' mysql-password "${FINAL_GUAC_PWD}"
|
||||
systemctl restart tomcat9
|
||||
@@ -341,31 +414,36 @@ systemctl restart tomcat9
|
||||
# ============================================================
|
||||
# Save credentials
|
||||
# ============================================================
|
||||
cat > ${CRED_FILE} <<EOF
|
||||
Guacamole admin login (default):
|
||||
cat > "${CRED_FILE}" <<EOF
|
||||
Guacamole URL:
|
||||
https://${SERVER_NAME}/
|
||||
|
||||
Default Guacamole admin:
|
||||
User: guacadmin
|
||||
Pass: guacadmin
|
||||
|
||||
*** Change this password immediately after login! ***
|
||||
(Change immediately in Settings → Preferences)
|
||||
|
||||
MySQL root password:
|
||||
${FINAL_MYSQL_ROOT_PWD}
|
||||
|
||||
MySQL guacamole user (${GUAC_USER}) password:
|
||||
MySQL Guacamole user (${GUAC_USER}) password:
|
||||
${FINAL_GUAC_PWD}
|
||||
|
||||
Server name:
|
||||
${SERVER_NAME}
|
||||
EOF
|
||||
chmod 600 ${CRED_FILE}
|
||||
TightVNC (root) password (for :1 / 5901):
|
||||
${VNC_PWD}
|
||||
|
||||
IP=$(curl -4 -s ifconfig.me || echo "localhost")
|
||||
Notes:
|
||||
- VNC listens on localhost only (-localhost). Guacamole uses it via 'Default VNC'.
|
||||
- guacd binds to 127.0.0.1:4822 (IPv4) to avoid ::1-only issues.
|
||||
EOF
|
||||
chmod 600 "${CRED_FILE}"
|
||||
|
||||
IP4=$(curl -4 -s ifconfig.me || echo "localhost")
|
||||
echo -e "${GREEN}=========================================================${NC}"
|
||||
echo -e "Guacamole running at: https://${SERVER_NAME}/"
|
||||
echo -e "Fallback: https://${IP}/"
|
||||
echo -e "Login: guacadmin / guacadmin"
|
||||
echo -e "MySQL root password: ${FINAL_MYSQL_ROOT_PWD}"
|
||||
echo -e "MySQL guac user pass: ${FINAL_GUAC_PWD}"
|
||||
echo -e "Credentials saved in: ${CRED_FILE}"
|
||||
echo -e "${RED}*** Save them securely! ***${NC}"
|
||||
echo -e "Guacamole: https://${SERVER_NAME}/ (fallback https://${IP4}/ )"
|
||||
echo -e "Login: guacadmin / guacadmin ${RED}(change immediately)${NC}"
|
||||
echo -e "MySQL root: ${FINAL_MYSQL_ROOT_PWD}"
|
||||
echo -e "MySQL ${GUAC_USER}: ${FINAL_GUAC_PWD}"
|
||||
echo -e "VNC (root) password: ${VNC_PWD} (localhost:5901)"
|
||||
echo -e "Saved in: ${CRED_FILE}"
|
||||
echo -e "${GREEN}=========================================================${NC}"
|
||||
|
||||
Reference in New Issue
Block a user