I'd appreciate some help with thinking through a problem. On a local network, I have:
A raspberry pi with some server software on it
A separate computer running an electron app, which is supposed to talk to the RPi through websockets. The user enters the IP address of the RPi into the app, and a connection is opened.
I need a good way to secure communication between this electron app and the RPi. I've looked into using SSL/TLS with secure websockets, but it doesn't seem like this is a good idea (feel free to tell me otherwise)
Has anyone implemented something like this or encountered a similar problem? Any suggestions are greatly appreciated.
Related
My case is the following: I will install some prototypes connected together with wifi (one device is the AP) in a distant site. I'd like to be able to remotely connect to my network for avoiding to travel.
As there will be 4G networks available there, I was wondering if a simple solution could be to have a smartphone connected to my wifi network, and use it to forward ssh client requests through 4G connection.
I have no idea if it's possible, how/depending on network operators, if there are standards and software (preferably android) for doing so.
Sorry it this question remains a bit vague, but any pointers would be appreciated.
There are also some 4G boxs that provide internet as wifi AP. I could change my network to connect to it, but I have no idea if I can reliabily get an address to this.
Thanks for your help.
A VPN server might be an option. Like DD-WRT on a router, or your own dedicated VPN server.
I have a series of RPi's running Raspian which need to deployed in various location around the world.
They will have internet access, but will all be behind a router. Is there an off-the-shelf solution to keep the possibility to create a SSH connection to them? I am thinking about solving problems, upgrading etc.
I am thinking of a 'server' solution where a 'client' on the RPi keep an active connection so a SSH connection can be established when required. Any suggestions will be much appreciated!
I have experimented with several services including LogMeIn Hamachi and Weaved among others. I would highly recommend using Weaved because it allows you to meet your goal (SSH to pi behind a router), and the setup is painless. You may even find some other uses that are quite handy.
See the installation details at https://developer.weaved.com/portal/members/betapi.php
Steps to be up and running:
Go to http://www.weaved.com and sign up.
Install weaved on your pi, and follow the prompts for SSH (Instructions at https://developer.weaved.com/portal/members/betapi.php).
Go to "My Devices" at weaved.com and get the new internet accessible proxy address for your pi.
Enjoy!
I have a piece of software I have written that talks to a web service over it's Wifi connection on a Casio WinCE handheld.
Unfortunately the Wifi network and the network created by WMDC (or ActiveSync) to host the debugger connection clash, they are both 192.168.55.0/24. So I can't have them both connected at the same time.
Does anybody know if you can reconfigure WMDC to use a different address range?
I've hunted through the registry but can't see anything obvious, and Google is not turning up anything useful.
Thanks,
James.
Is the development PC on teh same network as the WiFi connection? If so, I'd abandon ActiveSync/WMDC altogetehr and just use ethernet debugging over the same connection that it's using for the web service calls.
I'm currently developing a simple multiplayer game app for Android and I need to have a server to which the users connect to.I'd like to set up this server at home. I have a dynamic IP address,so someone told me I'd have to set up a local DNS server or something like that. I'm not even sure where to start with setting up a DNS server, everything I found was for windows 2003 and linux. Nothing for XP? If any one can shed some light on this matter, explain a bit how setting a DNS works or supply a link with "setting up local DNS for dummies" I'd be grateful.
Also, besides setting up a DNS so I can find the server every time, how about the communication with it? I'd like for it to be as secure as possible. Another friend told me something about communicating via SSH, which is again something I am not accustomed to.
So if someone could explain some of these concepts or offer some GOOD link for that that would be great. I'm very confused :)
Thanks
EDIT
Btw, the server is in Java and currently i'm communicating from Android emulator to the server (which is localhost) via sockets.
That's not a simple thing you're trying to achive. First you have to create your own server on your machine (maybe you're done with this step), then you have to make this server available for everyone. At this point, I suggest the DynDNS service:
http://lifehacker.com/124804/geek-to-live--how-to-assign-a-domain-name-to-your-home-web-server
A local DNS by default help you to find your own servers by name instead of IP address, but if you have a usual internet service with dynamic IP, you need an external DNS provider to route your clients to your server. (read the link above for the full explanation)
About the SSH security: Yes, you will need some security settings indeed, but that could be a very hard problem sometimes. You can set your server to work with SSL sockets, which is a part of the core J2SE release. It will work against some sort of attack, but none against others. Running your own server will raise unexpected numbers of problems, prepare for that.
As already stated in the comment to your post, something like http://www.no-ip.com or http://www.dnsdynamic.org would solve the issue with your dynamic ip - You do not need a local DNS server.
With regards to communication, i believe that SSH is linux/unix only. Since you wish to use Windows for the server, FTP or Remote Desktop would be best. Choose FTP if all you want to do is manage your files, choose remote desktop if you wish to manage your entire computer. I've had good results with the FileZilla FTP server on windows (http://filezilla-project.org/)
With that said, i think you would be better off buying a simple and cheap hosted service instead of using your own computer - you can get something that can run your java app for $5/month some places, and compared with the annoyance of having a local server running in your house, it might be worth it.
I have a wireless access point where they have 50+ wireless client and the connection just blow up in sometime. I think it related to overload on hardware.
So is there anyway to simulate or something like that to test wireless access point in heavy connection from many client, So I can manage to see what configuration is best for it.
I don't know about any tool but you can restrict number of clients accessing your router from router web page. You can do some hit and trial and see how many clients can access without router getting blown up.
You can use TMnetSim to simulate delay and package loss.