Announcing Partnership with Upserve POS

February 2020

NVIS, Inc.  is proud to announce partnership with Upserve POS, the #1 point-of-sale provider for upscale restaurants in North America.

Point of Sale (POS) represents a $60 billion industry, projected to more than double in the US alone . Credit card and consumer data theft is rampant, to this day. PCI DSS compliance isnot enough. Millions are still lost daily from establishments due to hacking of data in transit.

Target’s POS system was attacked and its payment card readers were subsequently infected. As a result, attackers  compromised the credit card information of 40 million customers. A year later, POS attack on Home Depot led to the stealing of card data belonging to 56 million customers.

In 2017, Chipotle Mexican Grill suffered a point of sale attack that took place from March 24 to April 18. Its POS system was infected with malware designed to steal card numbers, expiration dates and verification codes. The number of victims wasn’t disclosed, but we can assume that it was huge since Chipotle admitted that most of its 2,250 restaurants during that three week period of time were affected by the attack

With NVIS layer  2 encryption,  Upserve POS will have superior prevention end-to-end, from the POS terminal to the backoffice in the AWS cloud.

Call 1-408-400-3256


Getting Started on the NVIS Network


MacOSX Instructions

1. Wallet:  Have your Ethereum wallet address ready.
2.  Download safeconnect-osx.tgz here from your browser.
3.  Open a bash shell. Extract via “tar zxvf safeconnect-osx.tgz”
4.  Run “sudo ./safeconnect” and when prompted, enter your wallet address
5.  Start** via “sudo ./safeconnect on
6. If you want to stop, enter “sudo ./safeconnect off
** NOTE: If TUNTAP driver is not installed, it is extracted with the safeconnect.
Run sudo installer -pkg tuntap_20150118.pkg
(or tuntap_20191118.pkg for High Sierra or greater)
sudo exec 5<> /dev/tun0

Linux Instructions

NVIS for Linux now has a full CLI installer.

1. Know your unique device address assigned by your Administrator.

2. Download: the Linux NVIS Client t

Ubuntu 22.04 (AWS): tarball
Ubuntu 20.04: tarball
Ubuntu 18.04: tarball
CentOS7: tarball
Save the tarball on your matching system.
3. From a shell, Install the tarball:
sudo tar zxvPf <tarball>
** NOTE: if you do not already have TUNTAP installed, install e.g.:
sudo apt-get install  uml-utilities
sudo tunctl -t tun0
4. Run NVIS:
# nvis
wallet address : <address>
# nvis -h
# nvis -s
# nvis -v
# nvis on

5. If the status is ON, Test by entering::


Minimal Viable Proof: Available Services

Once securely connected, the following services can be accessed using the trusted interface via the private address.

Video Test

After connecting to the NVIS Test Network, there is a video test at Tokyo server:





Our private Ethereum blockchain uses static-nodes. json to define peers. The enode table is:

Geth or other clients should use the bootnode


To get to the geth-cli on a supernode, issue:

sudo geth-attach


Android / iPhone Wallet


NOTE: By default, wallets are setup to use Mainnet.

NVIS Tokens on Mainnet

Contract: 0x035cf462b4dd1c72db85be38f6158761a0401383

Scan the QR code with your BlockWallet to add tokens

Ethereum Mining Pool

Ethereum Block Explorer

As noted above, SSH and PING to any of the listed nodes can be done.