Good evening,
I have a Dedicated Server in a data center and i want configure the serve as DNS SERVER (BIND) and WEB SERVER (WHM/cPanel).
1) Is there a security problems when using a DNS SERVER/WEB SERVER in one physical server ? problems when open ports maybe!
2) Is REALLY important to tell the data center to RDNS of NS1,NS2,DNS1,DNS2 and wait 48h before starting configuring the server ?
Thank
You can't run two services on the same port but regularly you run services on their default ports so you shouldn't get into trouble there (HTTP port 80, DNS port 53).
PTR
(aka RDNS) dns record set up to point to that machine (from theMX
records) otherwise some mail clients/servers may reject or mark your mails as spam/junk.