What or programming language are you using?
This is likely what the "1234" user wants but doesn't know how to set up.
To help narrow down the best solution for your needs, could you share you are trying to accomplish on Facebook, and whether you are using a free or paid proxy service ? Share public link proxy 1234 facebook
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Normal web browsing typically uses Port 80 (HTTP) or Port 443 (HTTPS). What or programming language are you using
Facebook may trigger security checks when it detects login attempts from unusual IP addresses. Complete the verification process, and once your IP is "trusted," the problem may resolve. If it persists, try a different proxy location or a residential proxy.
This typically refers to a Port Number . Port 1234 is a non-standard port frequently used by custom proxy software, streaming applications (like VLC), or malware. Share public link This public link is valid
Proxies hide your location and device details from trackers, adding a layer of anonymity to your browsing habits. Step-by-Step Configuration Guide