Hi Forum!

I just setup a BIND/NAMED DNS server on RHEL 7 for internal use.

I am able to resolve the full FQDN and IP address, but if I try and just resolve the hostname by itself, I get

server can't find <hostname>: NXDOMAIN

Domain: guardium.dev
DNS Server: 192.168.42.2 Hostname: dns
Server 1: 192.168.42.10 Hostname: manager
Server 2: 192.168.42.11 Hostname: collector
Server 3: 192.168.42.20 Hostname: gimaster
Server 4: 192.168.42.21 Hostname: gidata
Server 5: 192.168.42.22 Hostname: giaux1
Server 6: 192.168.42.23 Hostname: giaux2

Here is my setup (can only take screen grabs sorry):

named.conf
https://hosting.photobucket.com/imag...amed.conf1.png
http://https://hosting.photobucket.c...amed.conf2.png

Forward zone file:
https://hosting.photobucket.com/imag...orwardzone.png

Reverse zone file:
https://hosting.photobucket.com/imag...eversezone.png

nslookup test from one of the servers showing that IP and FQDN can be resolved, but not the host name:
http://https://hosting.photobucket.c...0/nslookup.png

Any guidance into what I may be doing wrong would be greatly appreciated. Thanks in advance.

I always use a "search <some domains>" statement in my /etc/resolv.conf (on the client machines), so that an UNqualified hostname will be searched for in multiple domains.
I.e.
search "my local domain" "my DNS servers domain" "my providers domain"

Yes, you need a search line in /etc/resolv.conf
Further ensure there is dns in the hosts: line in /etc/nsswitch.conf, best after files.