SSL EPROTO Error

[diegossilveira]

When using iojs, version 2.4.0, I'm facing some TLS problems. The following sample code can be used to simulate the problem:

var https = require('https');

var options = {
  hostname: 'm4walletb2b.m4u.com.br',
  port: 443,
  path: '/',
  method: 'GET'
};

var req = https.request(options);
req.end();

req.on('error', function(e) {
  console.error(e);
});

The output result is:

{ [Error: write EPROTO]
  code: 'EPROTO',
  errno: 'EPROTO',
  syscall: 'write',
  address: undefined }

This same code runs successfully on node 0.10.38 and node 0.12.7.

[bnoordhuis]

It's because m4walletb2b.m4u.com.br uses RC4-SHA. io.js no longer supports RC4 out of the box because it's considered insecure.

Please consult the tls documentation on steps you can take. I'm not going to spell them out here because I fear people coming from google will just blindly copy/paste them without thinking through the consequences. Good luck!

[diegossilveira]

@bnoordhuis, thank you for the reply!

Is there a way I can found the default SSL/TLS ciphers used on HTTPS module for a given version of io.js (and node.js)?

[targos]

@diegossilveira you can find the list in the doc for tls.createServer

[tomalex0]

How can i figure out if cert file is having RC4-SHA ? which property correspond to this?