Can t open config file usr local ssl openssl cnf on Windows

Question

I have installed OpenSSL 64  I want to use a certificate for my nodejs https server  I ran the following command   openssl genrsa -out subdomain domain com key 1024   But I have got the error   WARNING  can t open config file   usr local ssl openssl cnf Loading  screen  into random state - done Generating RSA private key  1024 bit long modulus                                                                 unable to write  random state  e is 65537  0x10001    How can I resolve it  Is this the right command

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Simply install Win64 OpenSSL v1 0 2a or Win32 OpenSSL v1 0 2a  you can download these from http   slproweb com products Win32OpenSSL html  Works out of the box  no configuration needed

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The solution is running this command   set OPENSSL CONF C  OpenSSL-Win32 bin openssl cfg      or  set OPENSSL CONF  path-to-OpenSSL-install-dir  bin openssl cfg   in the command prompt before using openssl command    Let openssl know for sure where to find its  cfg file   Alternatively you could set the same variable OPENSSL CONF in the Windows environment variables   NOTE  This can happen when using the OpenSSL binary distribution from Shining Light Productions  a compiled   installer version of the official OpenSSL that is free to download  amp  use   This distribution is  semi-officially  linked from OpenSSL s site as a  service primarily for operating systems where there are no pre-compiled OpenSSL packages

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Not sure what is the difference between  cfg  amp   cnf In my server I couldn t find  cfg or  cnf I had created a new file for the same and placed it in the following folder  usr local ssl bin  executed the     openssl genrsa -des3 -out  lt key name gt  key 2048    went great

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In my case I used the binaries from Shining Light and the environment variables were already updated  But still had the issue until I ran a command window with elevated privileges   When you open the CMD window be sure to run it as Administrator   Right click the Command Prompt in Start menu and choose  Run as administrator    I think it can t read the files due to User Account Control

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usr local ssl openssl cnf   A path like this means the program has been compiled with either Cygwin or MSYS  If you must use this openssl then you will need an interpreter that understands those paths  like Bash  which is provided by Cygwin or MSYS   Another option would be to download or compile a Windows Native version of openssl  Using that the program would instead require a path like  C  Users Steven ssl openssl cnf   which would be better suited for the Command Prompt

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I ve SSL on Apache2 4 4 and executing this code at first  did the trick   set OPENSSL CONF C  wamp bin apache Apache2 4 4 conf openssl cnf  then execute the rest codes

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SOLUTION  just set -config parameter location correctly  i e   openssl                       -config C  bin apache apache2 4 9 conf openssl cnf

[windows] Can't open config file: /usr/local/ssl/openssl.cnf on Windows

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