Server ns.branch.company.com
File named.boot
primary 128.10.149.194.in-addr-arpa 128.10.149.194.zone
File 128.10.149.194.zone
@ IN SOA ns.branch.company.com hostmaster.branch.company.com ( 1998082502 ; Serial 28800 ; Refresh 8 hours 7200 ; Retry 2 hour 604800 ; Expire 7 days 86400 ) ; Minimum TTL 1 day IN NS ns.branch.company.com. IN NS ns.company.com. 129 IN PTR ns.branch.company.com. 130 IN PTR name1.branch.company.com. 131 IN PTR name2.branch.company.com. reverse domaindelegation process, example... Etc. up to 254 IN PTR name.branch.company.com.