23 lines
603 B
Markdown
23 lines
603 B
Markdown
## Self-signed certificate
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[What is self-signed-certificate](https://en.wikipedia.org/wiki/Self-signed_certificate)
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```bash
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# install openssl 4 ubuntu
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apt install openssl
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# install openssl 4 mac
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brew install openssl
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# self-signed certificate
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openssl genrsa -out key.pem
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openssl req -new -key key.pem -out csr.pem
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openssl x509 -req -days 9999 -in csr.pem -signkey key.pem -out cert.pem
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rm csr.pem
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# https://www.sslchecker.com/certdecoder
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```
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For trusted certificate, take a look at [Let's Encrypt](https://letsencrypt.org/i) and [Certbot](https://certbot.eff.org/).
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