The process described in this page will let an administrator replace the default DPOD Web Console and Admin Console certificate with one signed by the organization.

Prerequisites

• Access to the DPOD appliance

• The new certificate and key files

Process

1.  Log in to DPOD's appliance using SSH.

2. Copy the new certificate and key files either to the current certificate directory on the DPOD appliance or to any other directory of your choice.
   The current certificate directory is /etc/httpd/conf/certs.

3. Generate a new Diffie-Hellman (DH) Group for a more secured TLS session:

   Code Block
   language bash
   openssl dhparam -out /etc/httpd/conf/certs/dhparams.pem 2048

   Append the new DH group parameters file to the new certificate

   Code Block
   language bash
   cat /etc/httpd/conf/certs/dhparams.pem >> /etc/httpd/conf/certs/New_DPOD_Cer.cer

   See an example of the certificate file below:

   Code Block

   -----BEGIN CERTIFICATE----- MIIDDzCCAfegAwIBAgIJAIjhDQNZ4I2xMA0GCSqGSIb3DQEBCwUAMB4xHDAaBgNV BAMME09wZXJhdGlvbnNEYXNoYm9hcmQwHhcNMjEwMjIyMTE1ODQ1WhcNMzEwMjIw MTE1ODQ1WjAeMRwwGgYDVQQDDBNPcGVyYXRpb25zRGFzaGJvYXJkMIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo88mvSbcYEGfd2dgKwzDmc/ua/FiFfNf +Bi/dw91FtZESBgwWDfgIihvXmEtO/DmJEfV55xJm0Fk49c5j6DXXtjztsC04o6K /0j/2Muztvxq2kckI+yv+jCrw6LxQN+wft03mHP/R6V/F74rEMc5kdx5X5HFA8Fh qFEH154DLp4MGsvbkU7CEjQw6VMj3M3m1ot/m0RkAgGIs7oH2E58VqJfhps2pqCC fXNVrPSG8pSykKt/ZL1oYr33DQD3zvn68aBpuChwNt8enPqytTJiaJuDD6y9KcRO tLbRi5jWU8HSkqztfxr3ohCGdb61tkwr9Vn969mtqwv8GXsxSyI4IwIDAQABo1Aw TjAdBgNVHQ4EFgQU55Uu4PnL9s1sIY/H25gABo23w8swHwYDVR0jBBgwFoAU55Uu 4PnL9s1sIY/H25gABo23w8swDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOC AQEAA1z1KHkxotKGlxNYdz9dKunpMKsRpE6hEzIvEI3ZU+1Is007AHelXBeRidN0 eHqVdcgOPn1EamEXjgqp7weXlPKyKlZGPdRD9hJR1/XvTuPBaJ/rI+NJkPQpfysY hWM32rMXuqQn6UUrPT9N7s+m4ArQmoQu3+ZipgGspQrSKW0xxq0d1n15RiC6UuJo ggKUYB4Gw3lOi6oKxX91NqhkVOzmaM7ok/Z+rOM6X6M2bC2KWN6IYjW688RiJE8j S8kVtQThGaGbexvDlbE6vDmFtwPi5KTroU/T+0vHJ9lwTV1YvWduQ5EsQNlnDcSS GZYv2emdIk3/WcuMV0mqkXjhsw== -----END CERTIFICATE----- -----BEGIN DH PARAMETERS----- MIIBCAKCAQEA+SfHDxWo0BRXc/BxfJHZVkHtk16RmBHHiKv5HDOuhl1raZIEbJ2H 8e5Q0GVCxe30F7Cr66Wfx4jaHVQqkZ+YxuWLqDlHWUYeGPwXXdMXQtuQpPmfSbaT fb+dJ1OT4T5qRttzRWqlu+ZeKeYkOFMO7XqMcDMtMx8cCh6smtkPkG69Tb8cm0l8 0JQuSpRiqYq94pLAf1ReY2jFIWMEtGz4dwSBi7QD+Ncs0rPFecQPPFmmGp1hTeNf NhJHSMvkQrEiX7RHZVZVZ8ovwC9IzID5m2UgmDQ8/TgiBA9WyngswBFSglNvP9dK pb23nP4rDQ7sL307eponbeL/BsNUE4BeqwIBAg== -----END DH PARAMETERS-----

4. Open the web server configuration file for editing:

   Code Block
   language bash
   vi /etc/httpd/conf/httpd.conf

5. Update the SSL Certificate lines:

   Code Block
   language bash
   SSLCertificateFile "the new certificate file path" SSLCertificateKeyFile "the new key file path"

   SSLCertificateKeyFile needs to point to a key of a "PEM" format. 

   SSLCertificateFile needs to point to a certificate of a "PEM" format.
   Note: The certificate / key cannot be stored in a keystore (JKS, PKCS).

6. Restart the web server:

   Code Block
   language bash
   service httpd restart

Troubleshooting

1. Run syntax check on the httpd configuration file to make sure the certificate and key file paths are valid:

   Code Block
   language bash
   apachectl -t

   Valid output should be : "Syntax OK"
   Wrong certificate path: "SSLCertificateFile: file '/etc/httpd/conf/certs/DPOD.cer' does not exist or is empty"

2. Make sure the certificate and key file formats are valid.
   Check key file format:

   Code Block
   language bash
   openssl rsa -in DPOD.key -check Valid output: RSA key ok writing RSA key -----BEGIN RSA PRIVATE KEY----- MIIEowIBAAKCAQEAo88mvSbcYEGfd2dgKwzDmc/ua/FiFfNf+Bi/dw91FtZESBgw WDfgIihvXmEtO/DmJEfV55xJm0Fk49c5j6DXXtjztsC04o6K/0j/2Muztvxq2kck I+yv+jCrw6LxQN+wft03mHP/R6V/F74rEMc5kdx5X5HFA8FhqFEH154DLp4MGsvb kU7CEjQw6VMj3M3m1ot/m0RkAgGIs7oH2E58VqJfhps2pqCCfXNVrPSG8pSykKt/ ZL1oYr33DQD3zvn68aBpuChwNt8enPqytTJiaJuDD6y9KcROtLbRi5jWU8HSkqzt fxr3ohCGdb61tkwr9Vn969mtqwv8GXsxSyI4IwIDAQABAoIBAErv8Dvl9DkArE/2 dbMcArtxuROeeI2sKcIYqDZyVtFcsh39GtiwrxNRRil58TSTruT4C+4JvE6PKvVk N0vye7RDMbLwE4/1P7crkQd/oLZcYRF8LBdXJuYgr+Muvok8C8TttIpEvorrNeoJ sC/bxAVrRAcpa2SdaeyTLTBBdBk1roTbTkqeR6DK6yaOg9eJfFi9twjqxB2eAJlk TsXf/ltviuczPFOHNzl3jsuY4oJ2G+cAKqhaDK/Uz1PC61onpJToWDRqliE25pEa /eE6mLazoipbTGNGwGtuK1wn8p8wl9eTg6V4uYs4sUts0z65gEUn5yH9NadKqRH4 SIUYrBkCgYEA2ZDo1mCQVvmFdmkhR+lqIewo26T+gFujLrrOMKuGI4QVWrbHF9Gl 8nEa76FZWrkkXosOKBstdZkTy7A2Iod47sfb5KbPc1oKmZ3B4uKIi+lJ5IwuVhz2 bxlGjZnaZCJRPMltweT72X+Bk8g7aDQtvO5cni82BDlGeaQV5VySJ3cCgYEAwL8r h64a0F+xz724IKLMXHnt+BJd/myRnb/f7XWg6+7KEWIP2C0Gj82lrjak5cBNi/vh PnPHxAw2IGTTPij4N2g82vYEUktfWCA1+iFnVIJw6AG1n/BRWNjjByMcv/RKwhnK J0xzMtVXLVIjiPnVjjsVR6z1kYx6X8cBhpksd7UCgYEAokuu5Pxzr+3C2WnjIbnF Kjj44aBbGXVCbYF8fmH1VlkZdOoT6njByfEFnuxFs5+Yuc4RaWmcp7ThR3jTaT6V v8nnBtJIvkvUzHMaRx2lrnkAXjUT+7jvPEEmmErE1x2ibC32akVeegjbqFodtsX1 uJI3FOky6kOvht4YV1iOzlECgYBh47Uz31R252Li4rOUv5mSjcox5wIdqP37Y+tS Kh9kM44kbe0mGRfwCL1QUShGFvhLU8z9bsfR5XHH2ez+8Me/PA1MFw3yzZzKoPFI 65YS8XxuGBAp/l8SBHSot0hupJ8jHP3yH32SH4960PCDLH8tEQyprkm5deLgqa04 sqpG0QKBgCosnE6SFY8rBakV9E5YM7ug5sGZ/jBGXtxCmRBB0VpiGQIdiS7DyAlC sGX1E9E14G4itq8juxQo1VjqpC6AgbiVAlLpL1NAjlWstYC0coJrZzcH0dxTaEhs DCxCYclWOYBAiSqf/PjR4nwzYjw2wcvXm7W0n+ZcZWxD9qjLkgjT -----END RSA PRIVATE KEY----- Invalid Output: unable to load Private Key 139695916947264:error:0906D06C:PEM routines:PEM_read_bio:no start line:crypto/pem/pem_lib.c:691:Expecting: ANY PRIVATE KEY

   
   Check certificate file format:

   Code Block
   language bash
   openssl x509 -inform PEM -in DPOD.cer Valid output: -----BEGIN CERTIFICATE----- MIIDDzCCAfegAwIBAgIJAIjhDQNZ4I2xMA0GCSqGSIb3DQEBCwUAMB4xHDAaBgNV BAMME09wZXJhdGlvbnNEYXNoYm9hcmQwHhcNMjEwMjIyMTE1ODQ1WhcNMzEwMjIw MTE1ODQ1WjAeMRwwGgYDVQQDDBNPcGVyYXRpb25zRGFzaGJvYXJkMIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo88mvSbcYEGfd2dgKwzDmc/ua/FiFfNf +Bi/dw91FtZESBgwWDfgIihvXmEtO/DmJEfV55xJm0Fk49c5j6DXXtjztsC04o6K /0j/2Muztvxq2kckI+yv+jCrw6LxQN+wft03mHP/R6V/F74rEMc5kdx5X5HFA8Fh qFEH154DLp4MGsvbkU7CEjQw6VMj3M3m1ot/m0RkAgGIs7oH2E58VqJfhps2pqCC fXNVrPSG8pSykKt/ZL1oYr33DQD3zvn68aBpuChwNt8enPqytTJiaJuDD6y9KcRO tLbRi5jWU8HSkqztfxr3ohCGdb61tkwr9Vn969mtqwv8GXsxSyI4IwIDAQABo1Aw TjAdBgNVHQ4EFgQU55Uu4PnL9s1sIY/H25gABo23w8swHwYDVR0jBBgwFoAU55Uu 4PnL9s1sIY/H25gABo23w8swDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOC AQEAA1z1KHkxotKGlxNYdz9dKunpMKsRpE6hEzIvEI3ZU+1Is007AHelXBeRidN0 eHqVdcgOPn1EamEXjgqp7weXlPKyKlZGPdRD9hJR1/XvTuPBaJ/rI+NJkPQpfysY hWM32rMXuqQn6UUrPT9N7s+m4ArQmoQu3+ZipgGspQrSKW0xxq0d1n15RiC6UuJo ggKUYB4Gw3lOi6oKxX91NqhkVOzmaM7ok/Z+rOM6X6M2bC2KWN6IYjW688RiJE8j S8kVtQThGaGbexvDlbE6vDmFtwPi5KTroU/T+0vHJ9lwTV1YvWduQ5EsQNlnDcSS GZYv2emdIk3/WcuMV0mqkXjhsw== -----END CERTIFICATE----- Invalid Output: unable to load certificate 140583261931328:error:0906D06C:PEM routines:PEM_read_bio:no start line:crypto/pem/pem_lib.c:691:Expecting: TRUSTED CERTIFICATE

   
   
   
   

...