CentOSでDHCPのIPアドレスを再取得する
DHCPでIPアドレスを取得していて、再取得させたい場合
dhclientコマンドを使用する
まずは現在のIPアドレスを解放する
[root@localhost ~]# dhclient -r Internet Systems Consortium DHCP Client V3.0.5-RedHat Copyright 2004-2006 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ Listening on LPF/eth0/--:--:--:--:--:-- Sending on LPF/eth0/--:--:--:--:--:-- Sending on Socket/fallback DHCPRELEASE on eth0 to 192.168.10.254 port 67
次に取得処理を実行する
[root@localhost ~]# dhclient Internet Systems Consortium DHCP Client V3.0.5-RedHat Copyright 2004-2006 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ Listening on LPF/eth0/--:--:--:--:--:-- Sending on LPF/eth0/--:--:--:--:--:-- Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 DHCPOFFER from 192.168.10.254 DHCPREQUEST on eth0 to 255.255.255.255 port 67 DHCPACK from 192.168.10.254 bound to 192.168.10.128 -- renewal in 838 seconds.
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