Jontas » DNS http://www.f15ijp.com My digital notepad (notes etc) Wed, 28 Dec 2011 18:24:47 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Windows: Clearing the DNS cache http://www.f15ijp.com/2010/03/29/windows-clearing-the-dns-cache/ http://www.f15ijp.com/2010/03/29/windows-clearing-the-dns-cache/#comments Mon, 29 Mar 2010 07:59:57 +0000 jontas http://f15ijp.com/?p=434 To clear the DNS cache in Windows start the command prompt (as a admin) and use the following

ipconfig /flushdns
]]> http://www.f15ijp.com/2010/03/29/windows-clearing-the-dns-cache/feed/ 0 unqualified host name ([something]) unknow; sleeping for retry http://www.f15ijp.com/2009/11/30/unqualified-host-name-something-unknow-sleeping-for-retry/ http://www.f15ijp.com/2009/11/30/unqualified-host-name-something-unknow-sleeping-for-retry/#comments Mon, 30 Nov 2009 14:30:32 +0000 jontas http://f15ijp.no-ip.org/?p=42 sendmail expects to the machine to have a FQDN (fully qualified domain name).

If it does not have that (type “hostname” to check what name the machine has) sendmail will complain about this and take a loot of extra time trying to find it.

To use a FQDN edit “/etc/hosts” and change [something] to [something.yourdomain.com] and this will go away. Updating “/etc/hostname” at the same time might be a good idea; don’t forget to run “/bin/hostname -F /etc/hostname” after updating /etc/hostname.

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