# BinaryProvider options to curl or wget
**URL:** https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699
**Category:** Tooling
**Created:** [April 30, 2019, 2:37pm UTC](https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699 "2019-04-30T14:37:09Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@johnh](https://discourse.julialang.org/u/johnh)
#### Post date: [April 30, 2019, 2:37pm UTC](https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699/1 "2019-04-30T14:37:09Z")
Putting my money where my mouth is I am trying to build a tarball of ffmeg on an ARM 64 system.
BinaryProvider finds curl as its first download engine.
As I am behind a proxy I then get
[09:28:40] curl: (60) SSL certificate problem: self signed certificate in certificate chain
How can I feed this option to curl: curl -k
I can define wget as the first binary provider using an ENV variable.
But similarly how do I feed it a parameter of --no-check-certificate
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### Author:  [@johnh](https://discourse.julialang.org/u/johnh)
#### Post date: [April 30, 2019, 4:10pm UTC](https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699/2 "2019-04-30T16:10:59Z")
Answering my own question I think alias curl=“curl -k” might do the trick
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### Author:  [@staticfloat](https://discourse.julialang.org/u/staticfloat)
#### Post date: [April 30, 2019, 4:34pm UTC](https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699/3 "2019-04-30T16:34:32Z")
Yeah, we don’t really support passing arbitrary parameters like that (EDIT: I should say we could, and I’m not opposed to it, but in this particular instance, I’m not sure it’s the proper fix). I consider this solution to be rather wildly insecure; have you not installed your proxy’s root certificates into your system’s certificate store?
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### Author:  [@Balinus](https://discourse.julialang.org/u/Balinus)
#### Post date: [December 9, 2019, 4:37pm UTC](https://discourse.julialang.org/t/binaryprovider-options-to-curl-or-wget/23699/4 "2019-12-09T16:37:01Z")
I also have this problem. I installed the proxy’s root certificate but seems unable to bypass some other obstacles…
Is there any way to set wget as the primary protocol/tool?
edit - I can’t download `CMake`.
edit2- Humm… I can launch th command outside Julia and then build `CMake` in Julia. Somehow, the `.curlrc` config file is not used by Julia.