Ever wanted to deploy a Raspberry Pi 'in the field' and still be able to access it? Here is an easy way to enable remote SSH access to your Raspberry Pi 2 (and other models, too). In addition to Raspberry pi, you can use tools like on premise R-HUB remote support servers for remotely accessing omputers. It works on Windows, MAC, Andorid, iOS, Unix (Browser baed), Linux (Browser based) etc. You can use SSH to connect to your Raspberry Pi from a Linux computer, a Mac, or another Raspberry Pi, without installing additional software. You will need to know your Raspberry Pi's IP address to connect to it. For further documentation on the ssh command just enter man ssh into. While there are solutions involving a VPN or configuring port forwarding at a local firewall, those are often hard to manage for non-experts. A new generation of relay services including, and tries to fix this. Here we use the Yaler relay service (disclosure: I'm a founder) to provide SSH access from anywhere to the Raspberry Pi 2. Material - Raspberry Pi 2 (or any model), e.g. - USB cable, A / Micro B, e.g. - Micro SD card, 4 GB, e.g. - Ethernet cable, e.g. Also needed - Desktop or laptop computer - Local network with DHCP (Note: Steps 3-5 based on Yaler tutorials. Steps 1 & 2 let you start from scratch.). (If you've already got Raspbian running, skip this step.) Download the image Let's use the Raspbian Jessie (Lite) image which has sshd running by default. That's a plus for 'headless' setup without a display, mouse or keyboard. - Get the most recent Raspbian image from or use this. - Unzip the image ZIP to get the IMG image file Prepare the SD card on Mac OSX There are many ways to prepare the SD card on a Mac. Here's my favourite: - Get the PiFiller tool from or use this. - Start PiFiller and select the IMG image file downloaded above Prepare the SD card on Windows - Get Win32 Disk Imager from - Start the tool and select the IMG downloaded above (double check the drive) Prepare the SD card on Linux - Follow the steps in Use the SD card - Insert the SD card into the Raspberry Pi 2 - Connect the ethernet cable to your local network - Connect the USB cable to power the device and wait. After a few minutes Raspbian should be up. (If the Raspberry Pi 2 has a display, mouse and keyboard, skip this step.) Where's my Raspi? Once Raspbian is installed and the Raspberry Pi 2 is connected to the local network, it should automatically get an IP address with DHCP and start running sshd, which listens to incoming SSH connections on port 22. But what's the IP? Let's have a look One way to find the local IP address of the Raspberry Pi 2 (and any other device) is to use the nmap command line tool. - Get nmap from - To get your computer's local IP address, open a terminal and type $ ifconfig resulting in something like en0: flags=. 192.168.0.7 netmask. - Start an nmap query for port 22 using your local IP address prefix, e.g. $ nmap 192.168.0.0-255 -p22 - Check the result (if there are multiple IPs, it's usually the highest) Make sure it's yours - Get local SSH access to the Raspberry Pi 2 with ssh, using its local IP, e.g. $ ssh [email protected] - Enter the password, by default it's raspberry - Change the password by typing $ passwd Done? Your Raspberry Pi 2 is now ready to be connected to the relay service. 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After that, open the installed file and click run; The installation will start automatically. Overview The YalerTunnel daemon is a small software we'll put on your Raspi to connect local services running on the device to the relay service in the cloud. Like this: Relay Service Local SSH Service Get a relay domain Every device connected to the relay service needs a relay domain. - Get a free trial account including a relay domain at (Or, to host your own relay for non-commercial use, see Install YalerTunnel Let's build the YalerTunnel daemon from source. - Open a shell on your Raspberry Pi 2 and update apt-get with $ sudo apt-get update - Download and install libssl with $ sudo apt-get install libssl-dev - Create a yalertunnel directory $ mkdir yalertunnel $ cd yalertunnel - Download, unzip and build the YalerTunnel source $ wget $ tar xfzmv YalerTunnel2.src.tar.gz $./configure && make Done? Excel viewer for mac free. Then let's start the daemon. Using Putty on Windows - Follow the steps Using ssh on Mac or Linux Unlike Putty, the ssh command does not support 'HTTP CONNECT', so we need YalerTunnel on this side of the relay, too.
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