Ryfujk

What was required to accept "troll"?

Books on the History of math research at European universities

Female=gender counterpart?

node command while defining a coordinate in TikZ

Is a naturally all "male" species possible?

Invariance of results when scaling explanatory variables in logistic regression, is there a proof?

Hostile work environment after whistle-blowing on coworker and our boss. What do I do?

Freedom of speech and where it applies

Is there a problem with hiding "forgot password" until it's needed?

How to deal with or prevent idle in the test team?

How to prevent YouTube from showing already watched videos?

What does the "3am" section means in manpages?

Did US corporations pay demonstrators in the German demonstrations against article 13?

Reply ‘no position’ while the job posting is still there (‘HiWi’ position in Germany)

How do I repair my stair bannister?

Can a controlled ghast be a leader of a pack of ghouls?

A social experiment. What is the worst that can happen?

What is the opposite of 'gravitas'?

Why are all the doors on Ferenginar (the Ferengi home world) far shorter than the average Ferengi?

Proof of Lemma: Every integer can be written as a product of primes

Giant Toughroad SLR 2 for 200 miles in two days, will it make it?

Superhero words!

word describing multiple paths to the same abstract outcome

Are Warlocks Arcane or Divine?

How do I rename a LINUX host without needing to reboot for the rename to take effect?

Redhat doesn't set my desired hostname on rebootApache Subversion and Sudo - Why can't I resolve this hostname?hostname -f says “hostname: the specified hostname is invalid”. Guess why?Trouble changing hostname on a Rightscale provisioned CentOS instanceSetting the hostname: FQDN or short name?Ubuntu 10.04 server change ipExim4 with multiple websitesWhat is proper relationship between /etc/hosts and DNS A records for a Linux server?EC2 hostname ubuntu and ejabberdOk to rename live windows 2008 server without rebooting?

1

I searched for an answer to this question on serverfault and shockingly could not find it. I know it is possible, but I can't remember how to fdo it. How do I change a LINUX host's hostname and get that change to take effect without a reboot?

I am using Ubuntu 16 and Ubuntu 18.

A big feature of Ubuntu is the graphical desktop and graphical system utilities. However, we are running Ubuntu in our production environment so we chose not to use the graphical desktop or utilities in order not to have those features consume resources we need in our production environment.

I know that to rename the host, I edit the files:

• /etc/hostname


• /etc/hosts

In the /etc/hostname one just replaces the current hostname (soon to be former hostname) with the new hostname.

Ubuntu in the /etc/hosts file has the line:

127.0.1.1 your-hostname your-hostname

It acts as bootstrapping while your host is booting up and establishing itself within your network. Prior to changing the hostname, your-hostname is the current (soon to be former hostname) and as a part of changing your host's hostname, one replaces that name with the new name.

What I am familiar with is executing the above two steps and then bouncing your host. But plenty of times, like with a production server, one would like to execute that rename, but not bounce one's host.

How can I change hostname on a host and get that change to take effect without bouncing the host?

linux ubuntu hostname

share

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

1

I searched for an answer to this question on serverfault and shockingly could not find it. I know it is possible, but I can't remember how to fdo it. How do I change a LINUX host's hostname and get that change to take effect without a reboot?

I am using Ubuntu 16 and Ubuntu 18.

A big feature of Ubuntu is the graphical desktop and graphical system utilities. However, we are running Ubuntu in our production environment so we chose not to use the graphical desktop or utilities in order not to have those features consume resources we need in our production environment.

I know that to rename the host, I edit the files:

• /etc/hostname


• /etc/hosts

In the /etc/hostname one just replaces the current hostname (soon to be former hostname) with the new hostname.

Ubuntu in the /etc/hosts file has the line:

127.0.1.1 your-hostname your-hostname

It acts as bootstrapping while your host is booting up and establishing itself within your network. Prior to changing the hostname, your-hostname is the current (soon to be former hostname) and as a part of changing your host's hostname, one replaces that name with the new name.

What I am familiar with is executing the above two steps and then bouncing your host. But plenty of times, like with a production server, one would like to execute that rename, but not bounce one's host.

How can I change hostname on a host and get that change to take effect without bouncing the host?

linux ubuntu hostname

share

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I searched for an answer to this question on serverfault and shockingly could not find it. I know it is possible, but I can't remember how to fdo it. How do I change a LINUX host's hostname and get that change to take effect without a reboot?

I am using Ubuntu 16 and Ubuntu 18.

A big feature of Ubuntu is the graphical desktop and graphical system utilities. However, we are running Ubuntu in our production environment so we chose not to use the graphical desktop or utilities in order not to have those features consume resources we need in our production environment.

I know that to rename the host, I edit the files:

• /etc/hostname


• /etc/hosts

In the /etc/hostname one just replaces the current hostname (soon to be former hostname) with the new hostname.

Ubuntu in the /etc/hosts file has the line:

127.0.1.1 your-hostname your-hostname

It acts as bootstrapping while your host is booting up and establishing itself within your network. Prior to changing the hostname, your-hostname is the current (soon to be former hostname) and as a part of changing your host's hostname, one replaces that name with the new name.

What I am familiar with is executing the above two steps and then bouncing your host. But plenty of times, like with a production server, one would like to execute that rename, but not bounce one's host.

How can I change hostname on a host and get that change to take effect without bouncing the host?

linux ubuntu hostname

share

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

127.0.1.1 your-hostname your-hostname

share

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 2 mins ago

Peter JirakPeter Jirak

161

New contributor

Peter Jirak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 2 mins ago

Peter JirakPeter Jirak

161