Create SSL Certificates2017/07/16

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]:

# 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=dlp.srv.world/emailAddress=root@srv.world
Getting Private key

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