GLOSSARY
What is SFL?
Short answer
SFL is the official sing-box client for Linux. Install it only from the Vinipuch download page: deb, rpm or the Arch package from the download page. The five letters SFI, SFA, SFW, SFM and SFL are platforms, not five free slots. The device limit is on the plan card. Third-party shells are not recommended.
Published: 2026-08-25 · Updated: 2026-09-21
Linux: download SFL from the download page. deb, rpm or the Arch package from the download page.
In the client, create a Remote profile and paste the personal link from Connect in the bot or the cabinet.
Client letters do not raise the device limit. How many slots you have is on the plan card.
Shells from chats are someone else's code. Vinipuch supports only SFI, SFA, SFW, SFM and SFL from the download page.
If the tunnel will not come up, read the will-not-connect guide first, not hand-edited JSON. Cash refunds are not available.
Economy, Standard, Comfort and Premium share one stack: VLESS · Reality. The client letter does not change the protocol. Quota and devices live on the plan card.
After install, open the bot or cabinet → Connect. Do not publish the link. If a device is lost, revoke access and issue a new profile.