UPnP | PHP Library for Interacting with UPnP Network Devices

I have noted unauthorized access to my router (default gateway) from my PC (Catalina iMac).
I am investigating this because we have several Mac PCs that are having the same behavior.
I would like to identify the virus or process that is causing this unauthorized access and remove it.

We scanned our PC with Virus Buster and Avast Antivirus, but it did not detect any viruses...

To investigate, I took tcpdump log of my PC.
And I confirmed packets accessing the router.
For several minutes after starting up the PC, the following suspicious behavior is observed.

1. Lots of DNS queries I don't recognize. I don't remember accessing them.

I am in year 13 and have decided for my computer science coursework to make a small chat program using java. I have had to learn the networking aspect from scratch and my teachers are unfamiliar with it so they struggle to answer my questions. I have a client program and a server program and they communicate via a socket I creat, my issue is I dont understand the effect the try catches are having on my code. I am really fascinated with networking and thats why I chose it knowing full well it would be a challange, Ill leave my code below and the error I am having. If you could give me any tips on how I can solve my problem and also make my code 'better' that would be absolutely fantastic. Also please take into account I have only known java for around a year now and am still a novice futher more this is my first question on stack overflow!. Many thanks!

Client Code:

This is making me crazy. I'm trying to loop through email messages using ".each do |one_of|…end", but inserting one innocuous statement breaks the enumeration.

Here is an almost-stand-alone snippet. The authentication info is set up immediately preceding, as is the "require net/imap"

My provider is Ask4 and they only provide 1:1 NAT which opens ports 22 and all above 1024. No UPnP. However, I want to use ports 80 and 443 for a web server.

Is there a way without changing those ports to host a web server?

Can SSH Dynamic port forwarding or Proxies/Tunnelling software help me with this?

I want to avoid VPNs as they tend to be a slower solution. The more responsive the better.

Thanks!

Recently I am working on a p2p application and i found out how to program UDP holepunching with c# using ICE and STUN protocols.

Its good but there is some limits for symmetric NATs and routers using symmetric NAT.\

I am looking for a way to connect two system over any NAT type .

Anyway I have tried UPNP and port forwarding too but due to firewall and router blacklist this option is out of my mind, if its your answer please describe how should I use this method correctly.

Thanks in advance.

The code for my scanner is below. If I decide to check if only port 2220 is open on 176.9.9.172, it tells me that it is. However, when I run option 0 to check ALL the ports up to 10000, it only registers that port 22 and port 80 are open. It's multi-threaded and runs up to 4 threads at a time. It waits for the 4 threads to complete and then deletes them and resets the vector of threads to reduce memory issues. I'm not sure what's causing the problem.

UPDATE - I added a section of code after myNetworkSocket = socket(AF_INET, SOCK_STREAM, 0); in the TestPortConnection() function, and as I ran it, I found that the socket creation failed after I scanned ports 1 - 1023. I realized that I forgot to close the ports if they failed to connect in some situations. I inserted the code to close them, and it works now!

I want to programmatically transfer a file from a Raspberry Pi with Wi-Fi access, running Linux (client), to an Android phone (host). I'm using this link as a guide for how to set up a P2P connection on Android, but I cannot find any references to handle the client side on non-Android devices. I understand I can use this link to provide documentation on connecting the client to the host, but I have no leads on how to actually send a file with it.

Essentially, what I'd like to know is: Is there anything I can do on Linux to get the same effect as this, from the Android documentation? Am I completely misguided?

I'm looking at my options to control the Sonos Port at https://developer.sonos.com/reference/. I read about some UPnP control of other Sonos devices, but I can't seem to find any official information about this online. Is UPnP control of the Sonos Port possible?

I'm trying to install a custom fork of bitcoin core from HERE And when compiling, I get the following error:

I have installed all the prerequisites i think