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Static IP

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Special Forums IP Networking Static IP
# 8  
Old 05-18-2003
Yes, and normally if an IP address is statically assigned, the DHCP server will not try to assign it because the ARP cache will show that address in use. So, if you accidentally use an IP address that the DHCP server might allocate, if it is properly looking at the ARP table, it will not try to assign it.

Having said that, all DHCP servers are not created equal; but for small LANS, no problem usually. For very big LAN segments, more robust DHCP servers are a good thing.

BTW, on my little D-Link cable-modem router with DHCP, it is a configuration option to tell the D-Link DHCP process what range of IPs to allocate.
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LEARN ABOUT OPENDARWIN

switch_root

SWITCH_ROOT(8)						       System Administration						    SWITCH_ROOT(8)

NAME

       switch_root - switch to another filesystem as the root of the mount tree

SYNOPSIS

       switch_root [-hV]

       switch_root newroot init [arg...]

DESCRIPTION

       switch_root moves already mounted /proc, /dev, /sys and /run to newroot and makes newroot the new root filesystem and starts init process.

       WARNING: switch_root removes recursively all files and directories on the current root filesystem.

OPTIONS

       -h, --help
	      Display help text and exit.

       -V, --version
	      Display version information and exit.

RETURN VALUE

       switch_root returns 0 on success and 1 on failure.

NOTES

       switch_root  will  fail	to  function if newroot is not the root of a mount. If you want to switch root into a directory that does not meet
       this requirement then you can first use a bind-mounting trick to turn any directory into a mount point:

	      mount --bind $DIR $DIR

SEE ALSO

       chroot(2), init(8), mkinitrd(8), mount(8)

AUTHORS

       Peter Jones <pjones@redhat.com>
       Jeremy Katz <katzj@redhat.com>
       Karel Zak <kzak@redhat.com>

AVAILABILITY

       The switch_root command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2009							    SWITCH_ROOT(8)