Burp Suite User Forum

Create new post

Cant proxy any lower ports (80 etc)

Levi | Last updated: Feb 04, 2021 10:00AM UTC

Failed to start proxy service on 127.0.0.1:80 Check whether another service is already using this port. This happens on any lower port number. I tried a bunch and it seems to happen to them all. Any ideas why this may be?

Uthman, PortSwigger Agent | Last updated: Feb 04, 2021 10:06AM UTC

Have you tried running Burp with sudo privileges before editing the port?

You must be an existing, logged-in customer to reply to a thread. Please email us for additional support.