# Downloading from github behind a firewall - Peer’s Certificate issuer is not recognized

**URL:** <https://discourse.julialang.org/t/downloading-from-github-behind-a-firewall-peer-s-certificate-issuer-is-not-recognized/43003>\
**Category:** Internals & Design\
**Created:** [July 13, 2020, 7:51pm UTC](https://discourse.julialang.org/t/downloading-from-github-behind-a-firewall-peer-s-certificate-issuer-is-not-recognized/43003 "2020-07-13T19:51:23Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![feacluster](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/feacluster/32/16361_2.png) [@feacluster](https://discourse.julialang.org/u/feacluster)\
**Post date:** [July 15, 2020, 4:34pm UTC](https://discourse.julialang.org/t/downloading-from-github-behind-a-firewall-peer-s-certificate-issuer-is-not-recognized/43003/12 "2020-07-15T16:34:54Z")

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Seems I have resolved it by simply exporting this environment variable:

export JULIA\_PKG\_SERVER=[pkg.julialang.org](http://pkg.julialang.org)

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_[View the full topic](https://discourse.julialang.org/t/downloading-from-github-behind-a-firewall-peer-s-certificate-issuer-is-not-recognized/43003)._