Ch_ Mac OS

Long-Awaited Ch version 3.0 for Mac OS X released
– C/C++ interpreter for Mac OS X released

DAVIS, Calif., September 10, 2002 – SoftIntegration, Inc., the leader of
scripting technology for ubiquitous computing, today announced the release
of Ch version 3.0 for Mac OS X. Ch is a superset of C/C++ interpreter. It
supports ISO C standard, C++ class, POSIX, GTK+, Win32, OpenGL, X/Motif and
socket/WinSock with over 8,000 functions.

Ch is an alternative to other scripting languages and mathematical software
packages. It can be used for automating repetitive tasks, shell
programming, regression and hardware testing, 2D/3D graphical plotting and
scientific numerical computing. Ch can interface with C/C++ libraries and
be embedded into other application programs.

• The best USB to Serial drivers for macOS Drivers for CP2102 / CH340 / CH341 / PL2303 Devices. Program your Arduino, ESP8266 within a couple of minutes, control your Cisco,.
• CH Instruments was established in 1994. Our first instrument series, the Model 600 series electrochemical analyzer / workstation, was introduced at the end of 1994. Since then, new products have been added to provide a full line of electrochemical instrumentation.

Latest macOS Sierra/High Sierra-compatible driver for devices using the CH340G, CH34G or CH34X chipset.This chipset is used in several Arduino-compatible clones and serial-to-USB cables. Ch 1 Basic Mac OS X Skills. Study Guide Ch 1 Basic Mac OS X Skills. Print the Windows Mac Equivalents article if you have not already done so. It will assist you in understanding the material in the other resources. Access Mac Help and review the Help content on the Finder. The instructions below are tested on Mac OS 10.7.3 (Lion). Open System Preferences Network from Mac applications menu. Click the '+' button to create a new service, then select VPN as the interface type, and choose L2TP over IPsec from the pull-down menu.

'Ch for Mac OS X is a significant step towards rapid application
development and deployment across different platforms,' said Dr. Dawn
Cheng, General Manager at SoftIntegration. ' C/C++ programs can be
developed in one platform without tedious compile/link/debug cycles, and
run in all other major platforms including Windows, Linux, Mac OS X,
Solaris, and HP-UX.'

Ch Standard Edition for Mac supports the ISO C standard (C90), major
features in C99 such as IEEE floating-point arithmetic, variable length
arrays (VLAs), complex numbers and type generic mathematical functions, C++
class and POSIX. Ch is also C compatible shell for shell programming and
system administration. Popular Unix commands such as awk and sed can be
easily used in the Ch scripts in the same manner as in Bash, csh and Perl.
Ch Professional Edition supports computational arrays and C LAPACK for
linear algebra and matrix computations, 2D/3D plotting and scientific
numerical computing with advanced high-level numerical functions for linear
systems, differential equation solving, integration, non-linear equations,
curve fitting, fast Fourier analysis, etc. For example, linear equation b =
A*x can be written verbatim in Ch.

Ch is also a very effective interactive environment for teaching and
learning programming in C/C++ with new features in the latest C99 standard.

Ch Standard Edition is free for academic and non-profit organizations. Many
toolkits for Ch 3.0 in Mac OS X, including OpenGL, X/Motif and CGI, will be
released soon.

About SoftIntegration, Inc.

SoftIntegration, Inc., founded in 1999, is the leader of scripting
technology for ubiquitous computing. SoftIntegration provides
infrastructure software and services for rapid application development and
deployment, scientific numerical computing, embedded scripting, and
Web-based software integration. Our flagship product — Ch is an embeddable
C/C++ interpreter. It is the solution for engineers and scientists, Web
programmers, software developers, C/C++ beginners and experts, system
administrators, real-time programmers, quality analysts, and instructors
and professors.

SoftIntegration, Inc.
216 F Street, #68 Davis, CA 95616
tel (530) 297-7398 fax (530) 297-7392
info@softintegration.com
http://www.softintegration.com

This article outlines instructions to configure a client VPN connection on commonly-used operating systems. For more information about client VPN, please refer to our Client VPN Overviewdocumentation.

For troubleshooting, please refer to our Troubleshooting Client VPN documentation.

Android

To configure an Android device to connect to the Client VPN, follow these steps:

• Navigate to Settings -> Wireless & Networks -> VPN
• Click the Plus Icon to add an additional VPN profile

• Name: This can be anything you want to name this connection, for example, 'Work VPN.'

• Type: select L2TP/IPSEC PSK

• Server address: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.

• IPSec pre-shared key: Enter the pre-shared key that admin created in Security appliance >Configure > Client VPN settings.

• Press save

You will be prompted for user credentials when you connect.

Chrome OS

Chrome OS based devices can be configured to connect to the Client VPN feature on MX Security Appliances. This allows remote users to securely connect to the LAN. This article will cover how to configure the VPN connection on a Chrome OS device. For more information on how to setup the Client VPN feature of the MX or how to connect from other operating systems, please visit the MX documentation.

1. If you haven't already, sign in to your Chromebook.
2. Click the status area at the bottom of your screen, where your account picture is located.
3. Select Settings.
4. In the 'Internet connection' section, click Add connection.
5. Select Add private network.
6. In the box that appears, fill in the information below:
   1. Server hostname:Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
   2. Service name: This can be anything you want to name this connection, for example, 'Work VPN.'
   3. Provider type: Select L2TP/IPsec + Pre-shared key.
   4. Pre-shared key: Enter shared secret that admin created in Security appliance >Configure > Client VPN settings.
   5. Username credentials for connecting to VPN. If using Meraki authentication, this will be an e-mail address.
   6. Password credentials for connecting to VPN.
7. Click Connect.

For more information regarding the configuration of VPN connections in Chrome OS, visit the Google Support page.

To configure an iOS device to connect to the Client VPN, follow these steps:

1. Navigate to Settings -> General-> VPN -> Add VPN Configuration..
2. Type: set to L2TP.
3. Description:This can be anything you want to name this connection, for example, 'Work VPN.'
4. Server: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
5. Account: Enter the username
6. Password: Enter if desired. If the password is left blank, it will need to be entered each time the device attempts to connect to the Client VPN.
7. Secret: Enter shared secret that admin created in Security appliance >Configure > Client VPN settings.
8. Ensure that Send All Traffic is set to On.
9. Save the configuration.

macOS

Currently only the following authentication mechanisms are supported:

• User authentication: Active Directory (AD), RADIUS, or Meraki hosted authentication.

• Machine authentication: Preshared keys (a.k.a., shared secret).

When using Meraki hosted authentication, VPN account/user name setting on client devices (e.g., PC or Mac) is the user email address entered in the Dashboard.

The instructions below are tested on Mac OS 10.7.3 (Lion).

Open System Preferences > Network from Mac applications menu. Click the '+' button to create a new service, then select VPN as the interface type, and choose L2TP over IPsec from the pull-down menu.

• Server Address: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
• Account Name: Enter the account name of the user (based on AD, RADIUS or Meraki Cloud authentication).

• User Authentication > Password: User password (based on AD, RADIUS or Meraki Cloud authentication).
• Machine Authentication > Shared Secret: Enter shared secret that admin created in Security appliance >Configure > Client VPN settings.

The VPN connectivity will not be established if you don't enable the Send all traffic over VPN connection option!

Windows 7

Currently only the following authentication mechanisms are supported:

• User authentication: Active Directory (AD), RADIUS, or Meraki hosted authentication.

• Machine authentication: Preshared keys (a.k.a., shared secret).

When using Meraki hosted authentication, VPN account/user name setting on client devices (e.g., PC or Mac) is the user email address entered in the Dashboard.

Open Start Menu > Control Panel, click on Network and Internet, click on View network status and tasks.

In the Set up a connection or network pop-up window, choose Connect to a workplace (Set up a dial-up or VPN connection to your workplace).

Choose Use my Internet connection (VPN), in the Connect to a workspace dialog window.

In the Connect to a Workplace dialog box, enter:

• Internet address: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
• Destination name:This can be anything you want to name this connection, for example, 'Work VPN.'

Choose 'Don't connect now; just set it up so that I can connect later' option.

Click Next. In the next dialog window, enter the user credentials, and click Create.

Despite the name 'Unencrypted PAP', the client's password is sent encrypted over an IPsec tunnel between the client device and the MX. The password is fully secure and never sent in clear text over either the WAN or the LAN.

Windows 8

Currently only the following authentication mechanisms are supported:

• User authentication: Active Directory (AD), RADIUS, or Meraki hosted authentication.

• Machine authentication: Preshared keys (a.k.a., shared secret).

When using Meraki hosted authentication, VPN account/user name setting on client devices (e.g., PC or Mac) is the user email address entered in the Dashboard.

Open Start Menu > Network and Sharing Center and click Settings.

In the Set Up a Connection or Network pop-up window, choose Connect to a workplace.
(Set up a dial-up or VPN connection to your workplace).

Choose Use my Internet connection (VPN), in the Connect to a Workspace dialog window.

In the Connect to a Workplace dialog box, enter:

• Internet address: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
• Destination name:This can be anything you want to name this connection, for example, 'Work VPN.'

Crystal control ii mac os. Go back to Network and Sharing Center and click Change Adapter Settings.

Despite the name 'Unencrypted PAP', the client's password is sent encrypted over an IPsec tunnel between the client device and the MX. The password is fully secure and never sent in clear text over either the WAN or the LAN.

Windows 10

Currently only the following authentication mechanisms are supported:

• User authentication: Active Directory (AD), RADIUS, or Meraki hosted authentication.

• Machine authentication: Preshared keys (a.k.a., shared secret).

When using Meraki hosted authentication, VPN account/user name setting on client devices (e.g., PC or Mac) is the user email address entered in the Dashboard.

Open Start Menu > Search 'VPN' > Click Change virtual private networks (VPN)

From the VPN settings page, click Add a VPN connection.

In the Add a VPN connection dialog:

• VPN provider: Set to Windows (built-in)
• Connection name: This can be anything you want to name this connection, for example, 'Work VPN.'
• Server name or address: Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.
• VPN type: Select L2TP/IPsec with pre-shared key
• User name and Password: optional

Press Save.

After the VPN connection has been created, click Change adapter options under Related settings.

Right-click on the VPN Connection from the list of adapters and click Properties.

Despite the name 'Unencrypted PAP', the client's password is sent encrypted over an IPsec tunnel between the client device and the MX. The password is fully secure and never sent in clear text over either the WAN or the LAN.

In Advanced Properties dialog box, choose 'Use preshared key for authentication' and enter the pre-shared key that admin created in Security appliance >Configure > Client VPN settings.

Back at the Network Connections window, right-click on the VPN connection and click Connect / Disconnect.

Find your VPN profile and click Connect.

Windows XP

Currently only the following authentication mechanisms are supported:

• User authentication: Active Directory (AD), RADIUS, or Meraki hosted authentication.
• Machine authentication: Preshared keys (a.k.a., shared secret).

When using Meraki hosted authentication, use the email address for VPN account / user name.

Open Start Menu > Control Panel, click on Network Connections. Furnace (stabax) mac os.

In the Network Tasks section, click on Create a new connection.

Choose Connect to the network at my workplace, in the New Connection Wizard window. Jampion mac os.

Choose Virtual Private Network connection in the next section.

Then, give a name for this connection. This can be anything you want to name this connection, for example, 'Work VPN.'

Enter the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.

In the Connect box, click on Properties

In the General tab, verify the hostname (e.g. .com)orthe active WAN IP (e.g. XXX.XXX.XXX). Hostname is encouraged instead of active WAN IP because it is more reliable in cases of WAN failover. Admin can find them in Dashboard, under Security appliance > Monitor > Appliance status.

Despite the name 'Unencrypted PAP', the client's password is sent encrypted over an IPsec tunnel between the client device and the MX. The password is fully secure and never sent in clear text over either the WAN or the LAN.

Since Client VPN uses the L2TP over IPsec standard, any Linux client that properly supports this standard should suffice. Please note that newer versions of Ubuntu do not ship with a VPN client that supports L2TP/IP, and will therefore require a 3rd party VPN client that supports the protocol.

Note: The xl2tp package does not send user credentials properly to the MX when using Meraki Cloud Controller authentication, and this causes the authentication request to fail. Active Directory or RADIUS authentication can be used instead for successful authentication.

Configuring Ubuntu 20.04

Ubuntu does not support L2TP VPN by default. You will need to install a couple of software packages to enable this functionality. The instructions below were written for Ubuntu 20.04 LTS with the Gnome desktop environment. Ubuntu versions 16.04 and 18.04 can be configured in a similar manner. However, due to the large number of Linux versions available, it is not feasible to document every supported Ubuntu version.

In order to begin the VPN setup, open up a terminal window. Do this by searching for Terminal in your application list. Click on the Terminal icon to open a new terminal session.

Once the terminal window appears, you will need to enter a few commands.

Despite the name 'Unencrypted PAP', the client's password is sent encrypted over an IPsec tunnel between the client device and the MX. The password is fully secure and never sent in clear text over either the WAN or the LAN.

Since Client VPN uses the L2TP over IPsec standard, any Linux client that properly supports this standard should suffice. Please note that newer versions of Ubuntu do not ship with a VPN client that supports L2TP/IP, and will therefore require a 3rd party VPN client that supports the protocol.

Note: The xl2tp package does not send user credentials properly to the MX when using Meraki Cloud Controller authentication, and this causes the authentication request to fail. Active Directory or RADIUS authentication can be used instead for successful authentication.

Configuring Ubuntu 20.04

Ubuntu does not support L2TP VPN by default. You will need to install a couple of software packages to enable this functionality. The instructions below were written for Ubuntu 20.04 LTS with the Gnome desktop environment. Ubuntu versions 16.04 and 18.04 can be configured in a similar manner. However, due to the large number of Linux versions available, it is not feasible to document every supported Ubuntu version.

In order to begin the VPN setup, open up a terminal window. Do this by searching for Terminal in your application list. Click on the Terminal icon to open a new terminal session.

Once the terminal window appears, you will need to enter a few commands.

Note: You will need to be a part of the 'sudoers' group to install these packages. If you receive an error message like ' is not in the sudoers file.' you will need to either adjust your permissions, contact your administrator to add your account as an administrator or have them install the software for you.

Once the packages have been installed, you may open up the Network Settings by searching for Settings in the application list, or by clicking on the Network icon at the top right of the screen and selecting Wired (or Wireless) Settings.

Once the Network Settings window pops up, you will see there is a VPN section listed. Click on the + icon to set up a new VPN connection.

Select the Layer 2 Tunneling Protocol (L2TP) VPN type on the modal pop up window. If L2TP is not listed as an option, please see the first step about installing the required packages.

After selecting the L2TP option, a new modal will pop up titled Add VPN. Fill out your VPN Name, Gateway, User name, and Password information here.

Note: To save your password on this screen, you must select the appropriate option from the question mark on the password field.

Ch Macomb Llc

Next, click on the IPsec Settings button to open the L2TP IPsec Options modal.

Once the modal pops up, expand the Advanced options, and enter the following:

Select OK to continue. You will be returned back to the Add VPN modal. Select the PPP Settings button.

On the L2TP PPP Options modal, select only the PAP authentication method. Be sure the other authentication methods are de-selected. All other options can remain as the default. Select OK to continue.

Select Add at the top right corner of the Add VPN modal to complete the VPN setup.

Now you may connect your VPN by toggling the button on the Network Settings page:

Or by selecting the Connect option from the top right corner menu.

Upon successful connection, a VPN icon will appear next to the network icon in the status bar.

Note: The version of network-manager-l2tp that is installed along with xl2tpd is known to cause issues when connecting to Meraki Appliances. To alleviate this, you must disable the xl2tpd service when using the network-manager GUI to connect to a Meraki VPN.

To stop the xl2tpd service once use this Terminal command:

sudo service xl2tpd stop

To stop the xl2tpd service for all subsequent reboots use this Terminal command:

Ch_ Mac Os Catalina

sudo update-rc.d xl2tpd disable