Help Center/ Elastic Cloud Server/ FAQs/ ECS Failure FAQ/ Is an ECS Hostname with Suffix .novalocal Normal?
Updated on 2024-09-26 GMT+08:00
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Is an ECS Hostname with Suffix .novalocal Normal?

Symptom

Hostnames of ECSs created based on some types of images have the suffix .novalocal, whereas others do not.

For example, the hostname is set to abc during ECS creation. Table 1 lists the hostnames (obtained by running the hostname command) of ECSs created using different images and those displayed after the ECSs are restarted.

Table 1 Hostnames of ECSs created from different images

Image

Hostname Before ECS Restart

Hostname After ECS Restart

CentOS 6.8

abc

abc.novalocal

CentOS 7.3

abc.novalocal

abc.novalocal

Ubuntu 16

abc

abc

Troubleshooting

This is a normal phenomenon.

The static hostname of a Linux ECS is user defined and injected using Cloud-Init during the ECS creation. According to the test results, Cloud-Init adapts to OSs differently. As a result, hostnames of some ECSs have suffix .novalocal, whereas others do not.

If you do not want to have the obtained hostnames contain suffix .novalocal, change the hostnames by referring to How Can a Changed Static Hostname Take Effect Permanently?

Parent topic: ECS Failure FAQ