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Home/ Questions/hostname ip does not match certificate's altnames. How to fix?
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Chelsie Macejkovic
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Chelsie Macejkovic
Asked: July 6, 20222022-07-06T15:48:14+00:00 2022-07-06T15:48:14+00:00In: Error

hostname ip does not match certificate’s altnames. How to fix?

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Hi everyone. I’m learning about programming and am very surprised when the error hostname ip does not match certificate’s altnames occurs.

Please show me the fastest way to fix it. Thanks in advance for everyone’s help.

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    dttutoria Expert
    2022-07-06T16:09:33+00:00Added an answer on July 6, 2022 at 4:09 pm

    Hi. I will tell you the way to fix the hostname or IP not matching certificate’s altnames with Node.js.

    Solution: 

    You could utilize http-proxy with changeOrigin to true.

    For example, I write:

    const proxy = httpProxy.createProxyServer();
    
    proxy.web(req, res, {
    changeOrigin: true,
    target: 'https://example.com:3000'
    });

    to set up a proxy so that traffic going to example.com:3000 is proxied.

    Next, we design the server using:

    httpProxy.createServer({
    ssl: {
    key: fs.readFileSync('valid-ssl-key.pem', 'utf8'),
    cert: fs.readFileSync('valid-ssl-cert.pem', 'utf8')
    },
    target: 'https://example.com:3000',
    secure: true
    }).listen(443);

    We use fs.readFileSync to read the key as well as certificate, and after that, we establish target to the hostname where our server is being hosted.

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