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Firefox doesn't recognize a certificate by Sectigo Ltd on certain Linux machines

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  • Last reply by info1972

info1972
info1972
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I try to open https://botcompany.de in Firefox 74.

On one Linux machine (Peppermint 10), it works fine.

On another Linux machine (Ubuntu 18.04), I get a certificate error (SEC_ERROR_UNKNOWN_ISSUER).

Where does this difference come from? I need my certificate to be recognized on all machines.

Thanks

I try to open https://botcompany.de in Firefox 74. On one Linux machine (Peppermint 10), it works fine. On another Linux machine (Ubuntu 18.04), I get a certificate error (SEC_ERROR_UNKNOWN_ISSUER). Where does this difference come from? I need my certificate to be recognized on all machines. Thanks

Chosen solution

Hey guys, problem SOLVED.

I needed to put the full chain instead of just the certificate in my keystore (webserver is written in Java). Posting the crucial code here to help others:

cat privkey.pem fullchain.pem >priv-and-cert.pem openssl pkcs12 -export -out keystore.p12 -in priv-and-cert.pem -name mydomain.name

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info1972
info1972 Question owner
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Chosen Solution

Hey guys, problem SOLVED.

I needed to put the full chain instead of just the certificate in my keystore (webserver is written in Java). Posting the crucial code here to help others:

cat privkey.pem fullchain.pem >priv-and-cert.pem openssl pkcs12 -export -out keystore.p12 -in priv-and-cert.pem -name mydomain.name