GreenComet - Notes from a web programmer

A redirect is to redirect site visitors from one URL to another. 301 status indicates that the redirect is permanent. Removing www from the site address is necessary primarily for SEO . Since sites with www and without for search engines are different sites with the same content. For Apache server, you need to make an entry in the .htaccess file RewriteCond %{HTTP_HOST} ^www.example.com RewriteRule ^(.*)$ http://example.com/$1 [R=301,L] For NGINX , write in the site configuration file if ($host ~* www\.(.*)) { set $host_without_www $1; rewrite ^(.*)$ http://$host_without_www$1 permanent; } $host_without_www - write like that, this is a server variable

HTTPS is an advanced data transfer protocol that supports encryption. Install free ssl certificate from Lets Encrypt . Ubuntu server operating system Get a certificate sudo letsencrypt certonly -a webroot --webroot-path=/var/www/site.com/public_html -d site.com -d www.site.com Prolong sudo letsencrypt renew nginx config server { listen 80 ; server_name site.com.ru www.site.com; return 301 https://$server_name$request_uri; } server { # SSL configuration listen 443 ssl http2; listen [::]:443 ssl http2; server_name site.com www.site.com; ssl_certificate /etc/letsencrypt/live/site.com/fullchain.pem; ssl_certificate_key /etc/letsencrypt/live/site.com/privkey.pem; ssl_trusted_certificate /etc/letsencrypt/live/site.com/chain.pem; add_header Content-Security-Policy "img-src https: data:; upgrade-insecure-requests"; # We keep access log: access_log /var/log/nginx/site.com_access.log; # We share static and dynamic, static ...