Pete Biggs writes:
> On Thu, 2020-08-06 at 10:26 +0100, isdtor wrote:
> > [root@localhost ~]# lsb_release -d
> > Description: CentOS Linux release 8.2.2004 (Core)
> > [root@localhost ~]# cat /etc/resolv.conf
> > # Generated by NetworkManager
> > search subdomain.company.com company.com
> > nameserver 1.2.3.4
> > nameserver 5.6.7.8
> >
> > [root@localhost ~]# host foo
> > foo.subdomain.company.com has address 1.2.3.4
> >
> > [root@localhost ~]# host foo.subdomain
> > Host foo.subdomain not found: 3(NXDOMAIN)
> >
> > [root@localhost ~]# host foo.subdomain.company.com
> > foo.subdomain.company.com has address 1.2.3.4
> > [root@localhost ~]#
> >
> > The expected result is that the lookup for foo.subdomain works, like it does under CentOS < 8.
>
> man host
>
> -N ndots
> The number of dots that have to be in name for it to be considered absolute. The default value is that defined using
> the ndots statement in /etc/resolv.conf, or 1 if no ndots statement is present. Names with fewer dots are interpreted
> as relative names and will be searched for in the domains listed in the search or domain directive in
> /etc/resolv.conf.
As per man resolv.conf, the default setting hasn't changed. It is n=1 on all of CentOS 6/7/8.
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