YtFlowApp

A network proxy running on Universal Windows Platform.

  

YtFlow is a network debug tool running on Universal Windows Platform that forwards any network traffic through certain types of tunnels.

A note to prospective contributors: A complete rewrite of YtFlowApp is in progress. Contributions based on the current branch will not be entertained. You are welcome to test out the YtFlowCore-powered, brand new version on the next branch by joining the Beta Testing program.

Supported protocols

• Shadowsocks
  • stream ciphers (rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, aes-128-ctr, aes-192-ctr, aes-256-ctr, camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, salsa20, chacha20, chacha20-ietf)
  • AEAD ciphers (aes-128-gcm, aes-192-gcm, aes-256-gcm, chacha20-poly1305, chacha20-ietf-poly1305, xchacha20-ietf-poly1305)
• Trojan
  • Opt-out of certificate check
• HTTP
  • CONNECT-based proxy

Supported features

Local SOCKS5 proxy

A SOCKS5 server is available when the VPN connection is on. This is useful for the apps, like Unigram, that dial their server without initiating a DNS lookup and consequently bypass YtFlow VPN tunnel.

Set up SOCKS5 proxies with the following arguments:

Name	Value
Server address	172.17.255.240
Server port	1080
Authentication method	none
User name	<empty>
Password	<empty>

Debug UDP client

A UDP client is built in for debug purposes. Refer to wiki documentation for detailed illustration of its usage.

Note that packet capture is not enabled for the released packages due to high performance downgrading. To enable packet capture, please manually append YTLOG_VERBOSE to conditional compilation symbols of YtFlowTunnel and rebuild.

Limitations

• Trojan via TLS 1.3
• Direct IP connections bypass the proxy
• In a WSL 1 environment, prepend 1.1.1.1 to /etc/resolv.conf to apply the proxy. See Troubleshooting Windows Subsystem for Linux - Bash loses network connectivity once connected to a VPN.
• On Windows builds before v10.0.16299 (including all Mobile versions), a VPN profile must be created manually with the following arguments:

Name	Value
VPN Provider	YtFlow
Connection name	YtFlow Auto
Server name or address	any

from https://github.com/YtFlow/YtFlowApp