what are Rider.Backend sending when I am coding

I just coding for 10 minutes, and it sent 81M 

JetBrains Rider 2023.2

macos 13.2

Hi Zhoujiazhiwork! 

This should be inner traffic between the backend and frontend parts of Rider. Let's double-check.
Please, run in console the following: 

lsof -n -i | grep -e LISTEN -e ESTABLISHED | grep -e rider -e dotnet. All connections related to Rider or dotnet should be something like this 127.0.0.1:port1 -> 127.0.0.1:port2. 

This means that all connections are local and, indeed, traffic between Rider's backend and frontend. You can attach the result here if there is something strange.
I hope this helps!

Today I just updated the rider and found it's connecting to the 18.65.148.*

rider     70654 jiazhi.zhou   10u  IPv6 0x8d87fa6729cfb26b      0t0  TCP 127.0.0.1:52482 (LISTEN)
rider     70654 jiazhi.zhou   25u  IPv6 0x8d87fa6729cfd06b      0t0  TCP 127.0.0.1:63342 (LISTEN)
rider     70654 jiazhi.zhou   87u  IPv6 0x8d87fa6729cf856b      0t0  TCP 192.168.3.4:52631->18.65.148.56:https (ESTABLISHED)
rider     70654 jiazhi.zhou   88u  IPv6 0x8d87fa6729ce586b      0t0  TCP 127.0.0.1:52482->127.0.0.1:52490 (ESTABLISHED)
rider     70654 jiazhi.zhou  108u  IPv6 0x8d87fa6729ce676b      0t0  TCP 192.168.3.4:52804->18.65.148.74:https (ESTABLISHED)
rider     70654 jiazhi.zhou  110u  IPv6 0x8d87fa6729ce7deb      0t0  TCP 192.168.3.4:52814->3.163.224.95:https (ESTABLISHED)
rider     70654 jiazhi.zhou  111u  IPv6 0x8d87fa672a41b86b      0t0  TCP 127.0.0.1:63342->127.0.0.1:52739 (ESTABLISHED)
rider     70654 jiazhi.zhou  113u  IPv6 0x8d87fa6729cea36b      0t0  TCP 192.168.3.4:52553->18.65.148.27:https (ESTABLISHED)
rider     70654 jiazhi.zhou  116u  IPv6 0x8d87fa672a42126b      0t0  TCP 192.168.3.4:52639->18.65.148.56:https (ESTABLISHED)

Zhoujiazhiwork 

There are several features which might try to connect a network connection, and you may refer to this documentation to check the details. Some of the plugins may also require network connections.

As our services may relaying AWS platform, it's using dynamic IP list, so if you want to setup security system whitelist for your organization, please consider excluding *.jetbrains.com and *.jetbrians.com.cn from the block list.