Files to edit/change hostname manually
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/etc/hosts
/etc/nodename
/etc/hostname.xxn (xxn = network interface, such as hme0)
/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts

Files to edit/change the IP manually
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/etc/hosts 
/etc/defaultrouter 
/etc/netmasks