Need of 2 $ORIGIN Directives

[Harshith Mulky]

Hello,


We have bind running bind-9.9.4-29.el7.x86_64


We have a domain file with these configurations and we have to build our A records on top of this


$ORIGIN .
$TTL 86400  ; 1 day
atlanta.com        IN SOA  local.atlanta.com. master.atlanta.com. (
                2001062522 ; serial
                21600      ; refresh (6 hours)
                3600       ; retry (1 hour)
                604800     ; expire (1 week)
                86400      ; minimum (1 day)
                )
            NS  local.atlanta.com.
            NS  kabulvm8.atlanta.com.
$ORIGIN atlanta.com.
$TTL 300    ; 5 minutes
local           A   127.0.0.1
kabulvm8        A   10.54.49.43



So I wanted to understand some things about this Domain


A. Why are there 2 $ORIGIN directives?

B. Can the above be replaced as below


$ORIGIN atlanta.com.
$TTL 86400  ; 1 day
@ IN SOA  local.atlanta.com. master.atlanta.com. (
                2001062522 ; serial
                21600      ; refresh (6 hours)
                3600       ; retry (1 hour)
                604800     ; expire (1 week)
                86400      ; minimum (1 day)
                )
            NS  local.atlanta.com.
            NS  kabulvm8.atlanta.com.
;A Records
local           A   127.0.0.1
kabulvm8        A   10.54.49.43






Thanks

Harshith
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