# Windows ca - certificate for linux

**URL:** <https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459>\
**Category:** Rocky Linux Help & Support\
**Created:** [June 6, 2024, 7:36am UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459 "2024-06-06T07:36:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Happy](https://avatars.discourse-cdn.com/v4/letter/h/f05b48/32.png) [@Happy](https://forums.rockylinux.org/u/Happy)\
**Post date:** [June 6, 2024, 7:36am UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459/1 "2024-06-06T07:36:36Z")

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Hello, could you explain to me how to generate a certificate and then sign it via Windows ca?  
I’m try many times using open’ssl, and then sing using website:  
[http://MyCaAddress/certsrv](http://MyCaAddress/certsrv)

Can someone explain me, step by step how i can do it ?

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**Author:** ![iwalker](https://sea2.discourse-cdn.com/flex020/user_avatar/forums.rockylinux.org/iwalker/32/2599_2.png) [@iwalker](https://forums.rockylinux.org/u/iwalker)\
**Post date:** [June 6, 2024, 8:43am UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459/2 "2024-06-06T08:43:53Z")

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From what I know, Windows generates certs in pkcs12 format. You can then just convert pkcs12 to pem format so that you can extract the certificate, private key, and also CA certificate. Then just use those exported items for Linux.

Plenty of google results for that: [windows ca export certificate for linux - Google Search](https://www.google.com/search?q=windows+ca+export+certificate+for+linux&sca_upv=1&iflsig=AL9hbdgAAAAAZmGEoY-OA3XHY4sTscubhZJ6hB_av1tK&uact=5)

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**Author:** ![gerry666uk](https://avatars.discourse-cdn.com/v4/letter/g/dbc845/32.png) [@gerry666uk](https://forums.rockylinux.org/u/gerry666uk)\
**Post date:** [June 6, 2024, 4:13pm UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459/3 "2024-06-06T16:13:31Z")

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Aside from the conversion; when would someone want (or need) to use a Windows certificate on Rocky?

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**Author:** ![iwalker](https://sea2.discourse-cdn.com/flex020/user_avatar/forums.rockylinux.org/iwalker/32/2599_2.png) [@iwalker](https://forums.rockylinux.org/u/iwalker)\
**Post date:** [June 6, 2024, 5:22pm UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459/4 "2024-06-06T17:22:32Z")

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When you are using Windows Certificate Authority to generate and sign certificates, as your own internal CA that is trusted, rather than using self-signed certificates or purchasing certificates. Internal CA’s are common especially in companies for their internal servers. I personally would run an internal CA on Linux - which I do in fact. I don’t use Windows. But some people do…

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**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/rockylinux/original/1X/91b7219eec10e30013422e4df76c1d898711a5d5.svg) [@system](https://forums.rockylinux.org/u/system)\
**Post date:** [August 5, 2024, 5:24pm UTC](https://forums.rockylinux.org/t/windows-ca-certificate-for-linux/14459/5 "2024-08-05T17:24:37Z")

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