Add note regarding internal network for syncing

.lintstagedrc.cjs

@@ -1,6 +1,6 @@
 module.exports = {
 	// Run markdownlint on MD files
-	'*.md': 'markdownlint-cli2-fix',
+	'*.md': 'markdownlint-cli2 --fix',
 	// Run Stylelint on CSS files
 	'*.css': 'stylelint --fix --allow-empty-input',
 	// Run ESLint on TS, TSX, JS, JSX files

docs/docs/server-administration/dns.md

@@ -64,6 +64,10 @@ There is no limitation on how to chain DNS servers.
 
 ### Master -> Slave DNS cluster with the Hestia API
 
+::: info
+It doesn't work if you try to sync via local network! See [Issue](https://github.com/hestiacp/hestiacp/issues/4295) Make sure to use the public ip addresses
+:::
+
 Preparing your **Slave** server(s):
 
 1. Whitelist your master server IP in **Configure Server** -> **Security** -> **Allowed IP addresses for API**