in the file /etc/sysconfig/network-scripts/ifcfg-ethX
there are options
BOOTPROTO=DHCP
PEERDNS= yes/no .. choose "yes" to use the dns server list supplied by the DHCP server and "No" to use ur custom DNS servers.
Regards, anoop.
From: Tom Ball <Tom.Ball@xxxxxxx> Reply-To: shrike-list@xxxxxxxxxx To: shrike-list@xxxxxxxxxx Subject: Re: sendmail very slow Date: Tue, 05 Aug 2003 17:37:22 -0700
Thanks everyone for your help with this problem. It was indeed a DNS problem, due to my not specifying a fully-qualified host name. I now have separate network files with appropriate host+domain names for the different laptop environments I'm in, and sendmail starts up quickly.
On a related note, the reason I left the domain off was because I thought it was retrieved automatically from the DHCP server (this appears to happen on Mac and Windoze systems). Setting "require domain-name;" in /etc/dhclient-eth0.conf didn't do anything useful (although I still got a lease).
Copying config files for different wireless environment works, but it should be easier than this.
Tom
On Tue, 2003-08-05 at 02:05, John Haxby wrote:
> Tom Ball wrote:
>
> >When /etc/init.d/sendmail starts, it waits for a long time on the
> >/usr/bin/newaliases command. According to the documentation, this
> >command is needed to recompile the /etc/aliases file, which I've never
> >changed. Is there a reason the default one takes so long to recompile
> >(or why its last-modified date isn't checked)?
> >
> >
> A _very_ slow newaliases is almost certainly as a result of the DNS not
> functioning. (A moderately slow one is usually something else :-))
>
> If you can fix your DNS problems then you won't have a problem with
> newaliases. Having said that fixing the DNS problem might be rather hard.
>
> Alternatively, put
>
> test /etc/aliases.db -nt /etc/aliases &&
>
> in front of the newaliases command in the sendmail start-up script. I
> haven't tested this, but it should be OK. It's also not perfect -- the
> contents of /etc/aliases.db actually depends upon the sendmail
> configuration as well as the contents of /etc/aliases, albeit in a
> fairly subtle way. I suppose really that the invocation of newaliases
> should be after the make/makemap stuff.
>
> jch
>
> jch
>
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