# Pkg.add() fails on 0.6.2 in Linux with certificate error behind proxy

**URL:** <https://discourse.julialang.org/t/pkg-add-fails-on-0-6-2-in-linux-with-certificate-error-behind-proxy/10826>\
**Category:** General Usage\
**Tags:** proxy\
**Created:** [May 10, 2018, 9:49pm UTC](https://discourse.julialang.org/t/pkg-add-fails-on-0-6-2-in-linux-with-certificate-error-behind-proxy/10826 "2018-05-10T21:49:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sparrowhawk](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sparrowhawk/32/9148_2.png) [@sparrowhawk](https://discourse.julialang.org/u/sparrowhawk)\
**Post date:** [May 10, 2018, 9:49pm UTC](https://discourse.julialang.org/t/pkg-add-fails-on-0-6-2-in-linux-with-certificate-error-behind-proxy/10826/1 "2018-05-10T21:49:54Z")

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Hi, I think we have something going on with our corporate proxy sever. I can’t do Pkg.add for any package any more.

`Pkg.add("MXNet")`

gives the following error:

X509 - Certificate verification failed, e.g. CRL, CA or signature check failed

but from the terminal,  
`git clone https://github.com/dmlc/MXNet.jl.git`

with sslVerify=false specified in .gitconfig works.

I know sslVerify=false is not an ideal solution – but I can’t use git clone at all through https otherwise. What is the equivalent I have to do for Pkg in julia?

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**Author:** ![Philippe\_Maincon1](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@Philippe\_Maincon1](https://discourse.julialang.org/u/Philippe_Maincon1)\
**Post date:** [May 11, 2018, 7:37am UTC](https://discourse.julialang.org/t/pkg-add-fails-on-0-6-2-in-linux-with-certificate-error-behind-proxy/10826/2 "2018-05-11T07:37:29Z")

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This is possibly related to an issue I have:  
[https://discourse.julialang.org/t/pkg-update-throws-an-error/10797](https://discourse.julialang.org/t/pkg-update-throws-an-error/10797)