I use self-signed certificates with no issue but today I have tried to create a SSL certificate for commercial use. But apache doesn't start and gives the following error:

Notice: I have confirmed that crt file is valid as CSR decoder loads the content as well.

AH02241: Init: Unable to read server certificate from file XXXX/XXXX/XXXX.csr SSL Library Error: error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag SSL Library Error: error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error (Type=X509) AH02312: Fatal error initialising mod_ssl, exiting.

Softwares: OpenSSL 1.0.1e 11 Feb 2013 , Apache HTTP 2.4.6

1 Answer 1


Looks like you are using CSR instead of the certificate file. Make sure you have created self-signed certificate with openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt and use the server.crt in the SSLCertificateFile setting in apache ssl config. If you are using a commercial signing authority you must use the certificate provided by the authority and not the signing request generated.

  • yes, I have checked. Starts with -----BEGIN PRIVATE KEY----- , and ends with -----END PRIVATE KEY-----
    – user196395
    Oct 27, 2013 at 17:19
  • checked that the apache user has permissions to access the csr files and key files?
    – mindsurfer
    Oct 27, 2013 at 17:20
  • yes, it has....
    – user196395
    Oct 27, 2013 at 17:23
  • ok and anything in ssl_error_log?
    – mindsurfer
    Oct 27, 2013 at 17:29
  • Nope, everything is just fine. "openssl req -text -noout -verify -in XXX.csr" AND "openssl rsa -in XXX.key -check"
    – user196395
    Oct 27, 2013 at 17:50

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