$TTL 3600 @ IN SOA in.thelinuxpro.net. hostmaster.in.thelinuxpro.net. ( 24051301 ; serial 21600 ; refresh after 6 hours 3600 ; retry after 1 hour 604800 ; expire after 1 week 86400 ) ; minimum TTL of 1 day ; @ IN NS ns1.thelinuxpro.net. @ IN NS ns2.thelinuxpro.net. ; 241.53 IN PTR dns01.in.thelinuxpro.net. 242.53 IN PTR dns02.in.thelinuxpro.net. 243.53 IN PTR dns03.in.thelinuxpro.net. 250.53 IN PTR pihole.in.thelinuxpro.net. 251.53 IN PTR 1.ntp.in.thelinuxpro.net. 252.53 IN PTR 2.ntp.in.thelinuxpro.net. 222.99 IN PTR maverick.in.thelinuxpro.net. 226.99 IN PTR print.in.thelinuxpro.net. 230.99 IN PTR diskstation.in.thelinuxpro.net. 231.99 IN PTR nas81.in.thelinuxpro.net. 254.99 IN PTR gw99.in.thelinuxpro.net. 254.254 IN PTR unifi.in.thelinuxpro.net.