[Serverko] added some docs

krov/serverko/nginx12/README.md

@@ -1,3 +1,26 @@
 ---
 VMID: 100
 ---
+
+This VM is a reverse proxy, all serveces go through it and get their SSL certificates
+
+## Creating new record
+
+```sh
+cd /etc/nginx/sites-available/ # configs are located here
+vim.tiny pastebin.dmz.rs # using pastebin as example, copy existing one and edit it
+ln -s /etc/nginx/sites-available/pastebin.dmz.rs  /etc/nging/sites-enabled/pastebin.dmz.rs # creating link since file is the same
+mkdir /var/www/pastebindmzrs # new dir where certificate will be validated
+nginx -t # checking for errors
+systemctl reload nginx.service # reloading the service for changes to apply, reset will work too
+service nginx reload # alternative server reload
+certbot certonly --webroot -w /var/www/pastebindmzrs -d pastebin.dmz.rs -d pastebin.decentrala.org # requesting the certificates
+```
+
+## renewal
+
+```sh
+ls /var/www/
+cd /etc/letsencrypt/renewal
+certbot renew
+```