Once OpenConnect package has been successfully installed on Ubuntu, you should be ready to connect to SSL VPN servers, which can Cisco’s AnyConnect SSL VPN and Juniper Pulse Connect Secure Simply run the commands below to establish VPN connection to your VPN server gateway In this example, our VPN gateway is vpn.example.com. Passwd-on-stdin Read password from standard input -protocol=PROTO Select VPN protocol PROTO to be used for the connection. Supported protocols are anyconnect for Cisco AnyConnect (the default), and nc for experimental support for Juniper Network Connect (also supported by Junos Pulse servers). Provided by: vpnc0.5.3r512-2ubuntu1amd64 NAME vpnc - client for Cisco VPN3000 Concentrator, IOS and PIX SYNOPSIS vpnc -version -print-config -help -long-help options config files DESCRIPTION This manual page documents briefly the vpnc and vpnc-disconnect commands.vpnc is a VPN client for the Cisco 3000 VPN Concentrator, creating a IPSec-like connection as a tunneling network. This chapter explains how to use the VPN Client command-line interface (CLI) to connect to a Cisco VPN device, generate statistical reports, and disconnect from the device. You can create your own script files that use the CLI commands to perform routine tasks, such as connect to a corporate server, run reports, and then disconnect from the server.

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• How Do I Install The Cisco Anyconnect VPN Client? - Ask Ubuntu

Table Of Contents

Using the VPN Client Command-Line Interface

This chapter explains how to use the VPN Client command-line interface (CLI) to connect to a Cisco VPN device, generate statistical reports, and disconnect from the device. You can create your own script files that use the CLI commands to perform routine tasks, such as connect to a corporate server, run reports, and then disconnect from the server.

CLI Commands

This section lists each command, its syntax, and gives an example. It is organized by task.

Displaying a List of VPN Client Commands

To get a list of all VPN Client commands, go to the directory that contains the VPN Client software, and enter the vpnclient command at the command-line prompt:

Starting a Connection—vpnclient connect

To start a connection, enter the following command:

Table 4-1 lists the command options you can use with the vpnclient connect command, includes the task that each option performs, and gives an example of each option.

Note on Notrayicon Parameter

When you connect using the vpnclient connect command, the connection icon (lock) displays in the system tray in the lower right corner of your screen. In this case, when you then use the vpnclient disconnect command to disconnect from the VPN device, the VPN Client displays the message:

You must then click OK to continue.

However, if you include the notrayicon argument in your command-line string, no icon appears in the system tray. When you disconnect, the above message does not occur. Also the 'Disconnect VPN connection when logging off' feature is not in effect (see first Note).

Note When you use the notrayicon option either directly on the command line or in a batch file, make sure that you issue a vpnclient disconnect command before logging off or your VPN connection remains active.

Note If you click on the VPN Dialer option in the Cisco System VPN Client list of applications, after you have used the notrayicon on the command line, the lock icon appears on the system tray.

Example 4-1 vpnclient connect Command

This section shows an example of the vpnclient connect command that connects you to the Documentation Server using the profile name 'Docserver.'

At this point, the VPN Client displays an authentication dialog box that prompts for your username and password.

Figure 4-1 Authenticating a User

After you enter your name and password, authentication succeeds, and the command continues executing.

Example 4-2 vpnclient connect Command Using Parameters

The following command connects to the remote network without user interaction. Notice that the password appears on the command line in clear text.

Displaying a Notification—vpnclient notify

When you connect using the notrayicon option, you can display a notification using the vpnclient notify command:

Example 4-3 vpnclient notify Command

The following session shows how to use the vpnclient notify command to display a notification from a network administrator.

Displaying an Automatic VPN Initiation Configuration

To display your configuration for auto initiation, enter the following command:

Note If the mask in the output display does not match the value in the profile, then the mask is invalid. An invalid mask is displayed as 255.255.255.255

Example 4-4 vpnclient verify Command

The following command shows your auto initiation configuration for three access points.

Ending a Connection—vpnclient disconnect

To disconnect from your session, enter the following command:

Example 4-5 vpnclient disconnect Command

The following command disconnects you from your secure connection.

Displaying Information About Your Connection—vpnclient stat

To generate status information about your connection, enter the following command:

When entered without any of the optional parameters, the vpnclient stat command displays all status information. The following parameters are optional:

In My Case Vpnagentd Would Not Load. Installing The Packages Sudo Apt-get Install Lib32z1 Lib32ncurses5 However, Resolved The Problem For Me. The...

The following examples show sample output from the vpnclient stat command. For more information on statistical output, see VPN Client User Guide for Windows.

Example 4-6 vpnclient stat Command

Following is an example of the information that the vpnclient stat command displays.

Example 4-7 vpnclient stat reset Command

Example 4-8 vpnclient stat traffic Command

Here is a sample of the information that the vpnclient stat traffic command generates.

Example 4-9 vpnclient stat tunnel Command

To display only tunneling information, use the vpnclient stat tunnel command. Here is a sample.

Example 4-10 vpnclient stat route Command

The vpclient stat route command displays information similar to the following display.

Example 4-11 vpnclient stat firewall Command

The vpnclient stat firewall command displays information similar to the following display.

Return Codes

This section lists the error levels (return codes) that you can receive when using the VPN Client command-line interface.

Application Example

Here is an example of a DOS batch file (.bat) that uses CLI commands to connect to the corporate office from a branch office, run an application, and then disconnect from the corporate site.

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4

Connecting using OpenVPN
Next, you need to connect using the current configuration file, and you'll be asked for our credentials.
Since sudo elevation that requires you to input your credentials and putting the process into the background in the same line doesn't work, this is the recommended connection method if you want to manually type in your username and password:
sudo openvpn --config /etc/openvpn/US-East.ovpn
Now press Ctrl+z
bg
disown -h
This invokes elevation and in the same time connects to the desired VPN destination, but it does so in the foreground. Ctrl+z suspends the foreground process. bg resumes suspended process and sends it to the background. disown -h makes it so the process isn’t killed when the terminal is shut down.
If you want an automatic logon when you start the OpenVPN connection, you need to make the required changes to configuration files:
sudo touch /etc/openvpn/credentials
sudo printf '%sn' 'username' 'password' > /etc/openvpn/credentials
Replace username and password with your own credentials
Now change the downloaded .ovpn configuration file to use the credentials file:
sudo sed -i 's/auth-user-pass/auth-user-pass /etc/openvpn/credentials/g' /etc/openvpn/US-East.ovpn
Now you can initiate your VPN connection
sudo openvpn --config /etc/openvpn/US-East.ovpn
This will start the connection in the foreground. If you want to start the connection in the background and also make it not terminate on exiting the terminal you should use this command instead:
sudo nohup openvpn --config /etc/openvpn/US-East.ovpn &
Terminating the connection is as easy as typing:
sudo killall openvpn
Notice, that sometimes, you will be left with the terminated process in the process list and when you log out you will get a warning message 'You have stopped jobs'. Just ignore it, and log-out once more, this will kill the stopped job.