Example in doc generates an SSL certificate key size that is too small

[HussainLatiff]

Description:

The following doc in Step 1, point 4 has the following command
sudo openssl genrsa -des3 -out server.key 1024

but when I used it to generate the key and run the nginx server

sudo nginx -s reload
--------------------------------------------------------------------------------------------------------------------------------------
nginx: [emerg] SSL_CTX_use_certificate("/etc/nginx/ssl/server.crt") failed (SSL: error:0A00018F:SSL routines::ee key too small)

What fixed this was changing the code at the Step1, point 4 to generate a key that has a length of 2048

sudo openssl genrsa -des3 -out server.key 2048

For reference I am running this on a Lenovo X1 Carbon 16Gb / 512Ssd running Ubuntu

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