使用 Raspberry pi 进行海外 SSH

Question

I currently have my Raspberry pi setup with network connectivity and i can connect to it via local ip addres like this: 192.168.0.x

Is there anyway i use my puplic ip to ssh into my raspberry pi ?

Answer 1

There are two possible solutions to this problem.

1. If your ISP provides public ip, you can use dynamic DNS services from no-ip or dyndns or any other equivalent service providers and you can forward port #22 to rpi ip using your router menu.

2. If your ISP doesn't provide public ip and you are behind NAT. You can make use of reverse remote ssh method mentioned in this link. But to access via this method, you need a server in between that's having a public ip. http://www.tunnelsup.com/raspberry-pi-phoning-home-using-a-reverse-remote-ssh-tunnel

Hope it helps.

Answer 2

I think a Dynamic DNS is usualy the way to go. I use FreeDNS and I think it's pretty good. Instructions for setup by dentaku65:

First of all register your account on Freedns . Freedns offers a bunch of domain names, from my taste the best ones (or the ones easy to remember) are:

• mooo.com
• ignorelist.com

Assume that you register: your_host>.ignorelist.com
Install inadyn:

 sudo apt-get install inadyn curl

Open the url: http://freedns.afraid.org/dynamic/
Login with your account
Select the link Direct URL beside .ignorelist.com
Copy everything from the right of the ? in the address bar (alphanumeric string)

Create configuration file of inadyn:

 sudo gedit /etc/inadyn.conf

And save this content:

 --username <your_username> --password <your_password> --update_period 60000 --forced_update_period 320000 --alias <your_host>.ignorelist.com,alphanumeric string --background --dyndns_system default@freedns.afraid.org --syslog

Add inadyn to crontab:

 export EDITOR=gedit && sudo crontab -e

Edit the file to add the following line:

 @reboot /usr/sbin/inadyn

Reboot your PC
Wait 3 minutes
Check if inadyn is running:

 ps -A | grep inadyn

Check inadyn behaviour:

 more /var/log/messages |grep INADYN

Check if your host is up:

 ping <your_host>.ignorelist.com

Answer 3

您可能需要在路由器上启用端口转发