Creating a Self-Signed Certificate in Linux

 

  It typically OpenSSL comes pre-installed on Linux

 

1.  Open Terminal
   Most Linux distributions come with OpenSSL pre-installed.
   
   
2. Generate the Private Key
   openssl genrsa -out myprivatekey.key 2048
   
   
   
3. Create the Certificate Signing Request (CSR)
   openssl req -new -key myprivatekey.key -out myrequest.csr
   Enter the information for your organization or domain as prompted.
   
   
4. Generate the Self-Signed Certificate
   openssl x509 -req -days 365 -in myrequest.csr -signkey myprivatekey.key -out mycertificate.crt
   
   
   
5. Verify
   Your certificate (mycertificate.crt) and private key (myprivatekey.key) are now created.