I know that in ipfs the peers and their addresses are stored in DHTs. However I can not find info about the first connection of a peer to ipfs DHTs. How can a new peer know the location of DHTs so it can connect to them and get other peers data and addresses?
Related
While using Teams connector in Logic App - not able to authenticate getting below error
Not able to connect to global.consent.azure-apim.net or logic-apis-.consent.azure-apim.net
I faced this issue hence want to share the solution as well.
It seems it is system related issue. We can verify that by pinging the URLs causing the issue we will not get the IP address.
we can ask someone in the team to ping these URLs and provide us the IP address
Put these IP Address :
logic-apis-.consent.azure-apim.net
global.consent.azure-apim.net
in host file in the location -
c:\windows\system32\drivers\etc
Sir , i am trying to make a breadcrumb network using raspberryPi and Xbees. Please tell what destination address should i put in Coordinator node so that it receives data only from a single router.I am using all Xbees in API modes. Thanks in advance.[Image of the Addresses of my xbees i am using.Click to get image
Router3 Router2 Router1 Coordinator
Please suggest what addresses should i put so that Router3 send data to Router2, Router2 to Router1 and Router1 to Coordinator.
If suppose Router3 send some data, it first goes to Router2, then to Router1 and then reaches Coordinator.
I am trying to connect the GPS to all the Router RaspberryPis and trying to send these to Coordinator Node.
With a mesh network, you direct your message to the final destination and the nodes take care of relaying it as necessary to reach the destination.
So nothing to do on the coordinator, and each router uses a destination address of 0 in their API frames to send to the coordinator.
If you really want to force the messages to hop from router to router, just use the router's 64-bit address (the ATSH and ATSL values) in the API frames you're using to send your data. When you receive a frame on a node, just replace the destination address with the next hop and resend it.
I'm new to this forum (at least at asking questions), so please be patient. I'm trying to write simple client-server applications to communicate using datagram (UDP) sockets, with C and Windows.
The scenario is very simple, I want to be able to send/receive data from a machine in some local network (behind a GATEWAY/NAT) to some host having public IP. I can send the data, but it seems impossible to receive any data back, because the remote server can't see the client's local IP.
I don't want the user to perform manual port forwarding on the GATEWAY, and I also don't want to use UPnP because of security issues (though it also should be enabled by the user).
I think it is possible because applications like Skype or Browsers can do it, but how ?
Are there some automatically forwarded ports or things like that ? I'm exhausted of searching the web ... PLEASE HELP !
For UDP connections, most home NAT gateways will automatically create a temporary reverse mapping for each outbound packet.
Consider a scenario where your client is running on the internal machine with IP address 192.168.4.5, sending a UDP packet from port 65000 to the external address 64.34.119.12:6789, via a gateway with external IP address 192.0.43.10. When the gateway sees your internal client send a UDP packet from 192.168.4.5:65000 to the external address, it will NAT it to an external address and port, like 192.0.43.10:5500. Your server will see a packet with a source address of 192.0.43.10:5500 and destination address 64.34.119.12:6789. The router also sets up a reverse mapping, so that if it sees a packet arrive on the external interface with a source of 64.34.119.12:6789 and a destination of 192.0.43.10:5500, it will redirect it back to 192.168.4.5:65000. This mapping typically times out after a short while.
This means that in simple cases, all you need to do is:
On the client, use the same port to send to the server and listen for responses;
On the server, respond to the client at the address and port that the client's packet was receieved from, using the same server port that recieved the packet;
Have the client send the initial packet in the conversation;
Don't leave the "connection" idle for more than a few minutes at a time.
I am using Nokogiri to screen scrape a few websites.
My website is hosted on US servers, and so when it fetches the website, the website responses as if the user was a US user. I need the website to responds as if I was an Australian user, even though the server is located in the US.
When running locally it works fine because locally it responds as if it was Australian.
How can I read the site using Nokogiri as if I was from another country?
You have to run your requests through a proxy in Australia.
This doesn't have anything to do with Nokogiri - it applies no matter how you're trying to scrape a page. HTTP travels over TCP, which is a bi-directional protocol so you can't spoof its IP address. If you tried to spoof the IP address of a TCP packet, you would never get your response back.
You can configure Tor to always use exit nodes from a specific country. Please, however, do not use this method if this will put the Tor network under some serious strain (i.e. fetching the pages continually); in this case please consider buying an (Austrlia-based) annonimizing service (or simply a proxy).
I need one server to receive ip requests from clients(there are not in the same intranet), and I can
route all the response packets to a special gateway server, and then I send the response packages to
clients after some processing. it is like VPN, but I want to do some development based one
opensource project, so i can control it myself.
any suggestion? thanks!
There is OpenVPN which is as the name already suggests open source.
You could set up the server on the local one as a kind of proxy (or reverse-proxy depending on your viewpoint) and have the clients connect to it.
It depends what protocol you're using, maybe it has explicit proxy capability or you can get an existing proxy program, or just proxy it using a simple socket forwarder program.