Why is '' trying to connect to ''?

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http://askubuntu.com – On a LAN each computer is assigned a different IP address each morning. When I installed Kubuntu 12.10 the IP address assigned to the machine was '', but today it is ''. When I try to connect to '' in a web browser I see in the status bar 'Connecting to'. However, there is no mention of that address in the hosts file: $ cat /etc/hosts localhost bruno # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6- (HowTos)