How to define a Certificate CN name as Variable











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I want to make a generic command which when run should take the value of the CN of the certificate as the hostname where the command is being executed .



Command i used currently is as below



openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj 'CN=$HOSTNAME'


The value of HOSTNAME is defined in the environment variable. eg localhost



Executing the above command creates a key file with the actual value of the localhost.key, but the CN name reflects as $HOSTNAME where as i want the CN to be real hostname which is the value as mentioned in the environment variable , i.e localhost










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    up vote
    0
    down vote

    favorite












    I want to make a generic command which when run should take the value of the CN of the certificate as the hostname where the command is being executed .



    Command i used currently is as below



    openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj 'CN=$HOSTNAME'


    The value of HOSTNAME is defined in the environment variable. eg localhost



    Executing the above command creates a key file with the actual value of the localhost.key, but the CN name reflects as $HOSTNAME where as i want the CN to be real hostname which is the value as mentioned in the environment variable , i.e localhost










    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I want to make a generic command which when run should take the value of the CN of the certificate as the hostname where the command is being executed .



      Command i used currently is as below



      openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj 'CN=$HOSTNAME'


      The value of HOSTNAME is defined in the environment variable. eg localhost



      Executing the above command creates a key file with the actual value of the localhost.key, but the CN name reflects as $HOSTNAME where as i want the CN to be real hostname which is the value as mentioned in the environment variable , i.e localhost










      share|improve this question















      I want to make a generic command which when run should take the value of the CN of the certificate as the hostname where the command is being executed .



      Command i used currently is as below



      openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj 'CN=$HOSTNAME'


      The value of HOSTNAME is defined in the environment variable. eg localhost



      Executing the above command creates a key file with the actual value of the localhost.key, but the CN name reflects as $HOSTNAME where as i want the CN to be real hostname which is the value as mentioned in the environment variable , i.e localhost







      unix ssl openssl ssl-certificate






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      edited Nov 22 at 17:09









      James Z

      11.1k71735




      11.1k71735










      asked Nov 22 at 14:16









      soumya

      12




      12
























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          You have to use quotation marks and it's a good idea to use the slash before the field name:



          openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=$HOSTNAME"



          If you need to concatenate:



          openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=prefix${HOSTNAME}sufix"






          share|improve this answer























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            1 Answer
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            active

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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            0
            down vote



            accepted










            You have to use quotation marks and it's a good idea to use the slash before the field name:



            openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=$HOSTNAME"



            If you need to concatenate:



            openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=prefix${HOSTNAME}sufix"






            share|improve this answer



























              up vote
              0
              down vote



              accepted










              You have to use quotation marks and it's a good idea to use the slash before the field name:



              openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=$HOSTNAME"



              If you need to concatenate:



              openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=prefix${HOSTNAME}sufix"






              share|improve this answer

























                up vote
                0
                down vote



                accepted







                up vote
                0
                down vote



                accepted






                You have to use quotation marks and it's a good idea to use the slash before the field name:



                openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=$HOSTNAME"



                If you need to concatenate:



                openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=prefix${HOSTNAME}sufix"






                share|improve this answer














                You have to use quotation marks and it's a good idea to use the slash before the field name:



                openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=$HOSTNAME"



                If you need to concatenate:



                openssl req -sha256 -new -key $HOSTNAME.key -out $HOSTNAME.csr -subj "/CN=prefix${HOSTNAME}sufix"







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 24 at 0:01

























                answered Nov 23 at 23:55









                Lucas Martins

                586




                586






























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