DNS SOA problems

[rat99]

Hello,
I have a main server with directadmin and I only have an ipv4 address and I bought another vps with an ipv4 address to use 2 nameservers.
I activated the multi server function on the main server and entered the data from the other directadmin.
But I have a little problem.

NSs have same SOA serial

Looks like your nameservers do not agree on the SOA serial. Ths SOA records as reported by your nameservers: xxx.xxx.xxx.239 -> 2020051503 x.xxx.xxx.253 -> 2020051604 This can cause some serious problems that is why you should fix this asap.x

server principal: https://prnt.sc/shxyj9

 

[Zhenyapan]

just go to /var/named at xxx.xxx.xxx.239 -> and edit date in zonefile and restart named
also both zonefiles must be identical