def vpnClientServicesStart(virtual_machine,vpnclient_services_script):
     
     ssh = SshClient(
         host=virtual_machine.public_ip,
         port=TestMultipleVPNAccessonVPC.services["virtual_machine"]["ssh_port"],
         user='******',
         passwd='password')
                                  
     ssh.execute('%s start >> /tmp/executionoutput.txt' % (vpnclient_services_script))
     ssh.execute('echo "VPN Client Services Started" >> /tmp/executionoutput.txt')
     
     ssh.close()
 def configureVPNClientServicesFile(virtual_machine,vpnclient_services_script,vpnserverip=None,vpnnetworkcidr="192.168.10.0/24",psk=None,vpnuser=None,vpnuserpassword=None):
     
     ssh = SshClient(
         host=virtual_machine.public_ip,
         port=TestMultipleVPNAccessonVPC.services["virtual_machine"]["ssh_port"],
         user='******',
         passwd='password')
     
     
     cidr = "\/".join(vpnnetworkcidr.rsplit("/",1))
             
     ssh.execute(''' sed -i "s/VPN_ADDR=.*/VPN_ADDR='%s'/g" %s ''' % (vpnserverip,vpnclient_services_script))
     ssh.execute(''' sed -i "s/CIDR=.*/CIDR='%s'/g" %s ''' % (cidr,vpnclient_services_script))
     ssh.execute(''' sed -i "s/PSK=.*/PSK='%s'/g" %s ''' % (psk,vpnclient_services_script))
     ssh.execute(''' sed -i "s/VPN_USR=.*/VPN_USR='******'/g" %s ''' % (vpnuser,vpnclient_services_script))
     ssh.execute(''' sed -i "s/VPN_USR_PWD=.*/VPN_USR_PWD='%s'/g" %s ''' % (vpnuserpassword,vpnclient_services_script))
     ssh.execute('echo "VPN Client Services File Ready" >> /tmp/executionoutput.txt')
     
     ssh.close()