$TTL 86400
@   IN  SOA ns.elnogallms.com.co. admin.elnogallms.com.co. (
        2024021101  ; Serial
        3600        ; Refresh
        1800        ; Retry
        1209600     ; Expire
        86400 )     ; Minimum TTL

@   IN  NS  proxy.elnogallms.com.co.
2   IN  PTR cursos.elnogallms.com.co.
3   IN  PTR proxy.elnogallms.com.co.
4   IN  PTR correo.elnogallms.com.co.
5   IN  PTR www.elnogallms.com.co.