如何配置NGROK固定TCP静态端口？将全局端口设为7788

Hey there, I’ve got you covered on setting up that fixed TCP port for ngrok. Let’s walk through what you need to do step by step:

Key Prerequisite: ngrok Plan Requirement #

First off, you should know that free ngrok accounts don’t support fixed TCP ports—this is a feature reserved for Pro, Business, or Enterprise plans. So you’ll need to upgrade your account if you haven’t already to access reserved TCP ports.

Step 1: Reserve Your Fixed TCP Port (7788) #

Once you’re on a paid plan:

• Log into your ngrok dashboard/console.
• Look for the "Reserved Addresses" or "Reserved TCP Ports" section (the exact wording might vary slightly).
• Create a new reserved TCP port, specifying 7788 as the port number. Make note of the full remote address provided (it’ll look something like 0.tcp.ngrok.io:7788).

Step 2: Configure ngrok to Use the Reserved Port #

You have two easy ways to set this up:

Option 1: Command Line Directly #

Run this command in your terminal, replacing the remote address with the one you reserved:

ngrok tcp 7788 --remote-addr tcp://0.tcp.ngrok.io:7788

Option 2: Using a Configuration File #

If you prefer a reusable setup, create a ngrok.yml file with these contents (replace YOUR_AUTH_TOKEN with your actual ngrok auth token, and the remote address with your reserved one):

authtoken: YOUR_AUTH_TOKEN
tunnels:
  fixed-tcp-7788:
    proto: tcp
    addr: 7788
    remote_addr: 0.tcp.ngrok.io:7788

Then start ngrok with this config:

ngrok start fixed-tcp-7788

Step 3: Verify the Setup #

After launching ngrok, check the output—you should see a line like:

tcp://0.tcp.ngrok.io:7788 -> localhost:7788

That means your fixed port is working correctly, and future launches will use this same port instead of generating a random one.

Quick Notes #

• Make sure your ngrok auth token is properly configured (you can set it once with ngrok config add-authtoken YOUR_AUTH_TOKEN to avoid adding it to the config file every time).
• If port 7788 is already reserved by another ngrok user, you’ll need to pick a different port—but if it’s available, you’ll be able to reserve it without issues.

内容的提问来源于stack exchange，提问作者Alazar Komar