We can permanently set hostname using hostnamectl set-hostname. How can we permanently set *domain name* in CentOS 7? I found an article http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qualified-hostname-on-centos-7-0 that recommended setting FQDN using hostnamectl. Is that the right way to set hostname and domainname at the same time using *hostnamectl set-hostname* command?
Running *hostnamectl set-hostname* will set the hostname in* /etc/hostname* but it doesn't change */etc/hosts*. What's the proper way of adding hostname and FQDN to */etc/hosts *in CentOS 7?
Thanks,
Joe
vi or your text editor of choice. Though there should be a 'domainname' command to set it as well, though I just prefer editing /etc/hosts directly.
On Tue, Apr 5, 2016 at 3:24 PM, Joe Smithian joe.smithian@gmail.com wrote:
We can permanently set hostname using hostnamectl set-hostname. How can we permanently set *domain name* in CentOS 7? I found an article < http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qualifie...
that recommended setting FQDN using hostnamectl. Is that the right way to set hostname and domainname at the same time using *hostnamectl set-hostname* command?
Running *hostnamectl set-hostname* will set the hostname in* /etc/hostname* but it doesn't change */etc/hosts*. What's the proper way of adding hostname and FQDN to */etc/hosts *in CentOS 7?
Thanks,
Joe _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On 5 April 2016 at 20:24, Joe Smithian joe.smithian@gmail.com wrote:
We can permanently set hostname using hostnamectl set-hostname. How can we permanently set *domain name* in CentOS 7? I found an article < http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qualifie...
that recommended setting FQDN using hostnamectl. Is that the right way to set hostname and domainname at the same time using *hostnamectl set-hostname* command?
Running *hostnamectl set-hostname* will set the hostname in* /etc/hostname* but it doesn't change */etc/hosts*. What's the proper way of adding hostname and FQDN to */etc/hosts *in CentOS 7?
Technically speaking one shouldn't put the hostname in /etc/hosts as it's not required so long as your DNS is working ... which it should be ...
Not sure about everyone else, but I always put my hostname in /etc/hosts. Maybe that's from years of not always having DNS available back when the earth was cooling.
On Apr 5, 2016 16:30, "James Hogarth" james.hogarth@gmail.com wrote:
On 5 April 2016 at 20:24, Joe Smithian joe.smithian@gmail.com wrote:
We can permanently set hostname using hostnamectl set-hostname. How can
we
permanently set *domain name* in CentOS 7? I found an article <
http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qualifie...
that recommended setting FQDN using hostnamectl. Is that the right way to set hostname and domainname at the same time using *hostnamectl set-hostname* command?
Running *hostnamectl set-hostname* will set the hostname in* /etc/hostname* but it doesn't change */etc/hosts*. What's the proper way of adding hostname and FQDN to */etc/hosts *in CentOS 7?
Technically speaking one shouldn't put the hostname in /etc/hosts as it's not required so long as your DNS is working ... which it should be ... _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On 6 April 2016 at 15:45, Mark Haney mark.haney@vifprogram.com wrote:
Not sure about everyone else, but I always put my hostname in /etc/hosts. Maybe that's from years of not always having DNS available back when the earth was cooling.
This behaviour plays havoc with templated VMs though or any time you can't be sure the IP there will be correct ...
At which point you start having to script fixing it etc or weird things happen.
I can't recall if it hit EL7 yet but Fedora has nss-myhostname so it'll probably arrive in EL7 eventually to ensure the local hostname is always resolvable to the system IP if it exists or at least 127.0.0.2 so stuff relying on gethostname() doesn't have issues and the older /etc/hosts shenanigans are not required.
On 4/6/2016 11:34 AM, James Hogarth wrote:
On 6 April 2016 at 15:45, Mark Haneymark.haney@vifprogram.com wrote:
Not sure about everyone else, but I always put my hostname in /etc/hosts. Maybe that's from years of not always having DNS available back when the earth was cooling.
This behaviour plays havoc with templated VMs though or any time you can't be sure the IP there will be correct ...
indeed, most all my servers except a few key infrastructure servers are configured with DHCP reservations.
We can permanently set hostname using hostnamectl set-hostname. How can we permanently set *domain name* in CentOS 7? I found an article http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qu alified-hostname-on-centos-7-0 that recommended setting FQDN using hostnamectl. Is that the right way to set hostname and domainname at the same time using *hostnamectl set-hostname* command?
Running *hostnamectl set-hostname* will set the hostname in* /etc/hostname* but it doesn't change */etc/hosts*. What's the proper way of adding hostname and FQDN to */etc/hosts *in CentOS 7?
Thanks,
Joe _______________________________________________
Joe,
I used the following command in the /etc/rc.d/rc.local file which is used at boot time.
/bin/domainname Domain.com
Make sure you also use :
chmod +x /etc/rc.d/rc.local
to make sure the file is executable.
Greg
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Gregory P. Ennis -
James Hogarth -
Joe Smithian -
John R Pierce -
Mark Haney