Create SSL Certificates (Self Signed)2019/05/07 |
| Create your server's self signed SSL Certificates. If you use your server as a business, it had better buy and use Formal Certificates. |
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[root@dlp ~]# cd /etc/pki/tls/certs [root@dlp certs]# openssl genrsa -aes128 2048 > server.key Generating RSA private key, 2048 bit long modulus .+++ ...................................................................................+++ e is 65537 (0x010001) Enter pass phrase: # set passphrase Verifying - Enter pass phrase: # confirm # remove passphrase from private key [root@dlp certs]# openssl rsa -in server.key -out server.key
Enter pass phrase for server.key: # passphrase
writing RSA key
[root@dlp certs]# 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 code 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) []:dlp.srv.world # server's FQDN Email Address []:root@srv.world # admin email address Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:[root@dlp 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[root@dlp certs]# chmod 600 server.key [root@dlp certs]# ll server.* -rw-r--r--. 1 root root 1334 May 7 19:42 server.crt -rw-r--r--. 1 root root 1062 May 7 19:42 server.csr -rw-------. 1 root root 1675 May 7 19:41 server.key |