add google public DNS server to blacklist

Author: icymind

src/renderer/lib/generator.js

@@ -320,6 +320,10 @@ class Generator {
       contents = contents.concat(subs)
     }
 
+    // add google DNS to black list
+    contents.push(`add ${firewallInfo.ipset.blackSetName} 8.8.8.8`)
+    contents.push(`add ${firewallInfo.ipset.blackSetName} 8.8.4.4`)
+
     await fs.outputFile(tempFPath, contents.join('\n'), 'utf8')
     return tempFPath
   }