updated some connection tools

SSH-VPN-VNC/add_xrandr_resolution.sh

 #!/bin/bash
-#
+# By Michael Blaschek
+# Date 15.08.2020
+# CC BY 4.0 International
+# University of Vienna, Austria
+
+# Description:
 # Add custom VNC resolution
-# Author: M Blaschek
-# Date: 08-2020
 # Requires: xrandr and a running VNC session
 
-
-if [ $# -ne 2 ]; then
+if [ $# -lt 2 ]; then
 	echo "e.g. try: $0 1920 1380"
 	echo "or 2560 1320"
 else
-	command=$(cvt $1 $2 60 | grep Modeline | awk '{for(i=3;i<NF;i++){printf "%s ",$i}}')
+	refresh=60
+	if [ $# -eq 3 ]; then
+		refresh=$3
+	fi
+	command=$(cvt $1 $2 $refresh | grep Modeline | awk '{for(i=3;i<NF;i++){printf "%s ",$i}}')
 	xrandr --newmode  "$1x$2" ${command/Modeline/}
 	xrandr --addmode VNC-0 "$1x$2"
 	xrandr -d $DISPLAY -s "$1x$2"

SSH-VPN-VNC/connect2vpn

+#!/bin/bash
+# By Michael Blaschek
+# Date 23.03.2021
+# CC BY 4.0 International
+# University of Vienna, Austria
+
+# Description:
+# Connect to VPN from the University of Vienna
+# Watch connection
+
+if [ -n $VPN_USER ]; then
+	echo "set VPN_USER to your u:account username"
+	exit 1
+fi
+
+f5fpc -h 2> /dev/null 1>/dev/null
+if [ $? -ne 0 ]; then
+	echo "[VPN] Install Big-IP Edge Client. f5fpc missing"
+	exit 1
+fi
+
+if [ $# -eq 0 ]; then
+	echo "[VPN] Connecting split-tunnel ..."
+	f5fpc -s -t vpn.univie.ac.at -u ${VPN_USER}
+else
+	echo "[VPN] Connecting full-tunnel ..."
+	f5fpc -s -t vpn.univie.ac.at:8443 -u ${VPN_USER}
+fi
+# Show status
+watch -n 10 'f5fpc --info'
+echo "[VPN] Shutting down ..."
+# Disconnect
+f5fpc -o
\ No newline at end of file

SSH-VPN-VNC/mountserver

+#!/bin/bash
+# By Michael Blaschek
+# Date 23.03.2021
+# CC BY 4.0 International
+# University of Vienna, Austria
+
+# Description:
+# Connect a mount point from a remote server
+
+CURRENT_MOUNTS=$HOME/.currentmounts
+
+check(){
+	status=0
+	if [ -f ${CURRENT_MOUNTS} ]; then
+		# check mount points
+		while read line;
+		do
+			local_dir=$(echo "$line" | cut -d" " -f3)
+			mount | grep $local_dir > /dev/null
+			if [ $? -eq 0 ]; then
+				status=1
+				echo "$line" >> ${CURRENT_MOUNTS}.2
+				echo "[CHECK] $local_dir [OK]"
+			else
+				echo "[CHECK] $local_dir [X]"
+			fi
+		done < ${CURRENT_MOUNTS}
+		mv ${CURRENT_MOUNTS}.2 ${CURRENT_MOUNTS}
+	fi
+	return $status
+}
+
+fun_unmount(){
+	if [ $# -eq 0 ]; then
+		# unmount everything
+		if [ -f ${CURRENT_MOUNTS} ]; then
+			# check mount points
+			# need to redirect file input to unit-3, so that STDIN is available for read again
+			while read line <&3;
+			do
+				local_dir=$(echo "$line" | cut -d" " -f3)  
+				fun_unmount ${local_dir}
+			done 3<${CURRENT_MOUNTS}
+			rm ${CURRENT_MOUNTS}
+		fi
+	else
+		mount | grep $1 > /dev/null
+		if [ $? -eq 0 ]; then
+			local_dir=$(mount | grep $1 | tail -n1 | cut -d" " -f3)
+			read -p "[UNMOUNT] ${local_dir} (y/n)?" REPLY
+			case "$REPLY" in
+				Y*|y*) fusermount -u ${local_dir}; echo "[UNMOUNT] ${local_dir} [OK]";;
+				*) echo "[UNMOUNT] ${local_dir} [X]";;
+    		esac
+    	fi
+	fi
+}
+
+fun_mount(){
+	# Make directory
+	mkdir -p $3
+	# Mount using sshfs
+	sshfs $1:$2 $3
+	echo "$1 $2 $3" >> ${CURRENT_MOUNTS}
+	echo "[MOUNT] $3 [OK]"
+}
+#
+# Check if a mount point is active ?
+#
+
+sshfs -h 2> /dev/null 1> /dev/null
+if [ $? -ne 0 ]; then
+	echo "[MOUNT] sshfs is required to be installed."
+	exit 0
+fi
+
+if [ $# -ne 3 ]; then
+	check
+	if [ $? -eq 0 ]; then
+		echo "mountserver [host] [remotedir] [localdir]"
+		exit 1
+	fi
+	echo "[MOUNT] unmounting ..."
+	# unmount ?
+	fun_unmount
+else
+	# mount
+	host=$1
+	host_dir=$2
+	local_dir=$3
+	fun_unmount ${local_dir}
+	read -p "[MOUNT] ${local_dir} (y/n)?" REPLY
+	case "$REPLY" in
+	    Y*|y*) fun_mount $host $host_dir $local_dir;;
+	    *) exit 0;;
+	esac
+fi
+