# Rancher Host Hostname changed

**URL:** <https://forums.suse.com/t/rancher-host-hostname-changed/12372>\
**Category:** Rancher 1.x\
**Created:** [November 14, 2018, 12:38am UTC](https://forums.suse.com/t/rancher-host-hostname-changed/12372 "2018-11-14T00:38:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![micropentium](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@micropentium](https://forums.suse.com/u/micropentium)\
**Post date:** [November 14, 2018, 12:38am UTC](https://forums.suse.com/t/rancher-host-hostname-changed/12372/1 "2018-11-14T00:38:02Z")

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Hi,

I have an “old” rancher (1.6.x) platform setup on 4 VMs with DNS names:

dev1, dev2, dev3, dev4.

Rancher server was installed on dev1 and all 4 VMs were used as rancher hosts.

Recently, I have to change these VMs’ DNS names to:

test1, test2, test3, test4.

Of course, from server UI, all 4 hosts are disconnected.

I wonder what the best practice to reconnect these 4 hosts with the rancher server?

I’d like to run the host registration url script again on all 4 hosts. Will this fix my problem?

If so, since rancher server is on dev1 (now test1), is there any negative impact if the registration is re-run on the host?

Thanks a lot!