Config a network interface
# ifconfig eri0 plumb
# ifconfig eri0 192.168.110.35 netmask 255.255.255.0 up

Create file /etc/hostname.eri0
with hostname

Add IP-Hostname pair in /etc/hosts

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Unconfig a network interface
# ifconfig ge0 unplumb
Remove /etc/hostname.
Remove IP-Hostname pair from /etc/hosts





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