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GO Parking is a online parking reservation web application developed on MEAN stack. It helps users to find the right parking area and reserve it. The application provides user registration form for user to sign into the application. User can take the benefit of Facebook or Google O Auth to validate himself/herself into the application. User can find the right parking location by entering the address/landmark/city. Using the information, the application makes a REST API service call to ParkWhiz api to fetch the parking details. The results are shown in two views for better user experience. The parking locations are shown on Google Maps as well as List View. User can then select any one parking location which shows the parking layout of the building. The user gets to choose from any available parking slots to proceed further to reserve the spot. The parking details like Location Name, Location Address, Price, From Time, To Time and vehicle registration number are taken to make a reservation. The details are then pushed into mongoDB and an email confirmation is trigerred from nodejs which is sent to registered emailid. The application also provides feature for the user to delete his reservation or user account. This can be accessed from 'My Account' page of the application. Technologies Used: 1. MEAN stack 2. Google Maps API 3. Bootstrap, jQuery 5. Amazon Web services

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#!/usr/bin/env bash # This basically just takes all of the instructions from DigitalOcean's "How To Set Up an OpenVPN Server on Ubuntu 16.04" and puts them into a single script. # Define functions. function exportReplace { ek="export KEY_${1}=" sed -i "s/${ek}\".*\"/${ek}\"${2}\"/g" vars } function getPublicInterface { pubInterface="$(ip route | grep default)" pubInterface="$(echo $pubInterface | grep -oP -m 1 "dev .*?( |$)" | head -1)" pubInterfaceLen=${#pubInterface}; if [ "${pubInterface:$pubInterfaceLen:1}" = " " ]; then ((pubInterfaceLen--)) fi ((pubInterfaceLen-=4)) pubInterface=${pubInterface:4:$pubInterfaceLen} echo $pubInterface } function getIPAddress { ip route get 1.1.1.1 | awk '{print $NF; exit}' } function getAdditionToBeforeRules { pubInterface="$(getPublicInterface)" echoStr="" echoStr=$echoStr"\n# START OPENVPN RULES" echoStr=$echoStr"\n# NAT table rules" echoStr=$echoStr"\n*nat" echoStr=$echoStr"\n:POSTROUTING ACCEPT [0:0]" echoStr=$echoStr"\n# Allow traffic from OpenVPN client to ${pubInterface}" echoStr=$echoStr"\n-A POSTROUTING -s 10.8.0.0/8 -o ${pubInterface} -j MASQUERADE" echoStr=$echoStr"\nCOMMIT" echoStr=$echoStr"\n# END OPENVPN Rules" echoStr=$echoStr"\n" echoStr=$echoStr"\n" echo -e $echoStr } # Check root privileges. if [[ $(id -u) -ne 0 ]] ; then echo "This script must be run as root." exit 1 fi # Step 1: Install OpenVPN apt-get update apt-get install -y openvpn easy-rsa # Step 2: Set up the CA directory and switch to it. make-cadir ~/openvpn-ca cd ~/openvpn-ca # Step 3: Configure the CA Variables # Get information from user to customize vars. printf "\n\nSetup will need to customize the VPN server. Some information will need" printf "\nto be collected." printf "\nDon't use quotation marks in any of these. It'll mess stuff up." printf "\nDon't leave anything blank." printf "\n\nPlease enter email address:" read emailAddress printf "\n\nPlease enter country code (i.e., \"US\",\"CA\", etc):" read countryCode printf "\n\nPlease enter state or province code (i.e., \"NY\",\"MI\"):" read provinceCode printf "\n\nPlease enter city name (but remove spaces, i.e., SanFrancisco):" read cityName printf "\n\nPlease enter organization name (could be The Illuminati for all I care):" read orgName printf "\n\nPlease enter organizational unit (Seriously, what does that even mean?):" read OUName printf "\n\nIn a short while, another program is going to ask you to confirm these." printf "\nIt will do this multiple times. You can just press Enter on all of them." printf "\nto confirm." printf "\nIMPORTANT! One of the setup programs will ask you to enter a" printf "\n\"challenge\" password. Leave it blank and just hit [Enter]." #printf "\nHowever, when asked to create a PEM password, be sure to use a strong one." printf "\nWhen a setup program asks you a y/n question, respond with \"y\"." printf "\nPress [Enter] now to continue with install." read -p "" # Customize vars file and run it. exportReplace "COUNTRY" $countryCode exportReplace "PROVINCE" $provinceCode exportReplace "CITY" $cityName exportReplace "ORG" $orgName exportReplace "EMAIL" $emailAddress exportReplace "OU" $OUName exportReplace "NAME" "server" # Step 4: Build the Certificate Authority source vars ./clean-all ./build-ca # Step 5: Create the Server Certificate, Key, and Encryption Files ./build-key-server server ./build-dh openvpn --genkey --secret keys/ta.key # Step 6: Generate a Client Certificate and Key Pair source vars ./build-key client1 # Step 7: Configure the OpenVPN Service # Copy the Files to the OpenVPN Directory cd ~/openvpn-ca/keys sudo cp ca.crt ca.key server.crt server.key ta.key dh2048.pem /etc/openvpn gunzip -c /usr/share/doc/openvpn/examples/sample-config-files/server.conf.gz | sudo tee /etc/openvpn/server.conf # Adjust the OpenVPN Configuration confFile='/etc/openvpn/server.conf' #Note! This var is used later in the script, not just in this section. subString="tls-auth ta.key 0 # This file is secret" oldString=";${subString}" newString="${subString}\nkey-direction 0" sed -i "s/${oldString}/${newString}/g" $confFile subString="cipher AES-128-CBC" oldString=";${subString}" newString="${subString}\nauth SHA256" sed -i "s/${oldString}/${newString}/g" $confFile subString="user nobody" oldString=";${subString}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $confFile subString="group nogroup" oldString=";${subString}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $confFile subString="push \"redirect-gateway def1 bypass-dhcp\"" oldString=";${subString}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $confFile subString='push "dhcp-option DNS 208.67.222.222"' oldString=";${subString//./\\.}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $confFile subString="push \"dhcp-option DNS 208.67.220.220\"" oldString=";${subString//./\\.}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $confFile # Step 8: Adjust the Server Networking Configuration. # Allow IP Forwarding subString="net.ipv4.ip_forward=1" oldString="#${subString//./\\.}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" /etc/sysctl.conf sudo sysctl -p # Adjust the UFW Rules to Masquerade Client Connections fileName="/etc/ufw/before.rules" newRules="$(getAdditionToBeforeRules)" fileContents="$(awk -v "n=10" -v "s=${newRules}" '(NR==n) { print s } 1' ${fileName})" echo "${fileContents}" > $fileName oldString="DEFAULT_FORWARD_POLICY=\"DROP\"" newString="DEFAULT_FORWARD_POLICY=\"ACCEPT\"" sed -i "s/${oldString}/${newString}/g" /etc/default/ufw # Open the OpenVPN Port and Enable the Changes ufw allow 1194/udp ufw allow OpenSSH ufw disable ufw enable # Step 9: Start and Enable the OpenVPN Service systemctl start openvpn@server systemctl enable openvpn@server # Step 10: Create Client Configuration Infrastructure # Creating the Client Config Directory Structure mkdir -p ~/client-configs/files chmod 700 ~/client-configs/files # Creating a Base Configuration fileName="${HOME}/client-configs/base.conf" cp /usr/share/doc/openvpn/examples/sample-config-files/client.conf $fileName ipAddress="$(getIPAddress)" sed -i "s/my-server-1/${ipAddress}/g" $fileName subString="user" oldString=";${subString}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $fileName subString="group" oldString=";${subString}" newString="${subString}" sed -i "s/${oldString}/${newString}/g" $fileName subString="ca ca.crt" oldString="${subString/\./\\.}" newString="#${subString}" sed -i "s/${oldString}/${newString}/g" $fileName subString="cert client.crt" oldString="${subString/\./\\.}" newString="#${subString}" sed -i "s/${oldString}/${newString}/g" $fileName subString="key client.key" oldString="${subString/\./\\.}" newString="#${subString}" sed -i "s/${oldString}/${newString}/g" $fileName echo "">> "${fileName}" echo "cipher AES-128-CBC">> "${fileName}" echo "auth SHA256" >> "${fileName}" echo "key-direction 1" >> "${fileName}" echo "#script-security 2" >> "${fileName}" echo "#up /etc/openvpn/update-resolv-conf" >> "${fileName}" echo "#down /etc/openvpn/update-resolv-conf" >> "${fileName}" # Creating a Configuration Generation Script makeConfigStr=" # First argument: Client identifier KEY_DIR=~/openvpn-ca/keys OUTPUT_DIR=~/client-configs/files BASE_CONFIG=~/client-configs/base.conf cat \${BASE_CONFIG} \\ <(echo -e '<ca>') \\ \${KEY_DIR}/ca.crt \\ <(echo -e '</ca>\n<cert>') \\ \${KEY_DIR}/\${1}.crt \\ <(echo -e '</cert>\n<key>') \\ \${KEY_DIR}/\${1}.key \\ <(echo -e '</key>\n<tls-auth>') \\ \${KEY_DIR}/ta.key \\ <(echo -e '</tls-auth>') \\ > \${OUTPUT_DIR}/\${1}.ovpn " echo "#!/bin/bash" > "${HOME}/client-configs/make_config.sh" echo "${makeConfigStr}" >> "${HOME}/client-configs/make_config.sh" chmod 700 ~/client-configs/make_config.sh # Step 11: Generate Client Configurations cd ~/client-configs ./make_config.sh client1 # Copy VPN configuration to /root, so it's the same path for everyone. cp ~/client-configs/files/client1.ovpn /root

Built a K-Means Model to detect if a banknote is genuine or forged.

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MongoDB, NodeJS, Express and AngularJS 2 app that allows users to login, register and navigate to dashboard with url authentication using JSON web token.

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