Fedora 27
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Create SSL Certificates
2017/12/13
  Create self signed SSL Certificates. However, If you use your server as a business, it had better buy and use a Formal Certificates from official Certificate Authority.
[root@www ~]#
cd /etc/pki/tls/certs

[root@www certs]#
make server.key 

umask 77 ; \
/usr/bin/openssl genrsa -aes128 2048 > server.key
Generating RSA private key, 2048 bit long modulus
...
...
e is 65537 (0x10001)
Enter pass phrase:    
# set passphrase

Verifying - Enter pass phrase:    
# confirm
# remove passphrase from private key

[root@www certs]#
openssl rsa -in server.key -out server.key

Enter pass phrase for server.key:    
# input passphrase

writing RSA key
[root@www certs]#
make server.csr 

umask 77 ; \
/usr/bin/openssl req -utf8 -new -key server.key -out server.csr
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:
JP
   
# country

State or Province Name (full name) []:
Hiroshima
   
# state

Locality Name (eg, city) [Default City]:
Hiroshima
   
# city

Organization Name (eg, company) [Default Company Ltd]:
GTS
   
# company

Organizational Unit Name (eg, section) []:
Server World
   
# department

Common Name (eg, your name or your server's hostname) []:
www.srv.world
   
# server's FQDN

Email Address []:
xxx@srv.world
   
# admin email

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:    
# Enter

An optional company name []:    
# Enter
[root@www certs]#
openssl x509 -in server.csr -out server.crt -req -signkey server.key -days 3650

Signature ok
subject=/C=JP/ST=Hiroshima/L=Hiroshima/O=GTS/OU=Server World/CN=www.srv.world/emailAddress=root@srv.world
Getting Private key
 
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