Proxy Authentication

IP Authentication

The easiest and most secure authentication method is IP Authentication. To use IP Authentication:

  1. On the right side of your dashboard, click on the Add an IP or Hostname link. This takes you to the Edit authenticated IPs screen.
  2. On that screen, fill and submit the form. You are entering your personal IP in the IP Address column. If you don't remember the IP, you'll find it displayed to the right of the form, headed Your IP Address. Later, you will authenticate your personal IP to one or more proxy servers, and they'll mask the personal IP.

If you have a dynamic, frequently changing IP, then you may want to add it where you add IP addresses. For details, please follow the link to Domain Authentication and read about setup with a dynamic DNS service.

You can also authenticate an IP via the ProxyMesh API.

Any IP address you add will be able to access the ProxyMesh proxy without a Proxy-Authorization header.

After you add an IP to your account, it will take a few minutes to automatically be authorized at the servers. To avoid a temporary break of four hours, please be sure to wait until the IP has been authorized at the servers before you make requests from that IP.

That's it! Now any requests you make to a proxy server from the IPs that you've added will successfully authenticate.

  • On the Edit authenticated IPs screen, you can enter as many personal IPs as you want. Although your dashboard form has room for only a few entries, once you submit an entry you can fill in the form again to add more.
  • You cannot add a proxy's IP to your authorized IP list on the dashboard. The authorized IP list is for your IP addresses.
  • IPs for sub-accounts are authenticated by the same methods, via dashboard or API, as a primary account. Also see Creating Sub-Accounts from Your Dashboard.

If for any reason IP authentication fails, it could be that your IP has changed. You can update your IPs again from your account dashboard. However, if your access is temporarily blocked because of too many 407 errors (indicating incorrect authentication), be aware that an IP update performed during a ban does not immediately lift the ban. You will need to wait until the ban expires, typically after 4 hours.

More information

Please see our blog article Are Your IP Addresses Clean?

IP Authentication for Multiple Accounts

You can have multiple ProxyMesh accounts, but the system does not allow the same IP to be authenticated for multiple accounts. An attempt to do so will trigger a message that the IP is already in the system.

An authenticated IP becomes a primary key in the ProxyMesh database and is not unique to a single account. With multiple accounts authorizing the same IP, a proxy server could not determine which account was making a request.

Domain Authentication

If you have a dynamic, frequently changing IP, then you may want to use domain authentication with a dynamic DNS service such as No-IP. Once you have dynamic DNS setup, you can add your domain on the same page where you add IP addresses. Domains are resolved every 10 minutes, causing a potential lag between the DNS IP change, and ProxyMesh's receipt of the update, but this method can work well for you.

Username:Password Authentication

The typical HTTP proxy authentication method is with the Proxy-Authorization header using the Basic access authentication method. Most HTTP client libraries support this authentication method. But if you need to create the header yourself, the steps are

  1. Base64 encode your username:password.
  2. Send a header that looks like Proxy-Authorization: Basic base64-encoded-username:password

The username/password is the same one that you use to sign into your account.

HTTPS Authentication

Although Python Requests supports username:password authentication with HTTPS URLs, most other libraries do not. The reason is that the Proxy-Authorization header must be sent with the initial CONNECT method, instead of with the rest of the request headers. Otherwise there is no way for the proxy server to read the header.

For HTTPS requests, IP authentication is the most reliable method. For additional details, please see Proxy Server Requests over HTTPS.

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