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The host name contains illegal characters

I am getting thie message in the logs:

 

"The host name contains illegal characters This may cause undefined behavior when using some network services. Please change the host name using only valid characters (A-Z, a-z, 0-9, -)"

 

I am presuming this why for some time I have had issues with access on some devices. Can I just edit the Host Name from "ReadyNAS_****" to just "ReadyNAS123" etc?

 

Also I have just upgraded to 6.10.1 and I am now seeing a ? in my Finder, this may be caused by the same isssue.

 

Is it safe to change the Host Name?

 

Jim

Model: RN104|ReadyNAS 100 Series 4- Bay
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Re: The host name contains illegal characters


@jimcocteau wrote:

"The host name contains illegal characters This may cause undefined behavior when using some network services. Please change the host name using only valid characters (A-Z, a-z, 0-9, -)"

 


Many devices are ok with _, but it is illegal per RFC 1123.

 


@jimcocteau wrote:

Can I just edit the Host Name from "ReadyNAS_****" to just "ReadyNAS123" etc?

 

Is it safe to change the Host Name?


It is safe to change it.   Some devices might have the old name in their cache - rebooting them will of course fix that.

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Guru

Re: The host name contains illegal characters


@jimcocteau wrote:

"The host name contains illegal characters This may cause undefined behavior when using some network services. Please change the host name using only valid characters (A-Z, a-z, 0-9, -)"

 


Many devices are ok with _, but it is illegal per RFC 1123.

 


@jimcocteau wrote:

Can I just edit the Host Name from "ReadyNAS_****" to just "ReadyNAS123" etc?

 

Is it safe to change the Host Name?


It is safe to change it.   Some devices might have the old name in their cache - rebooting them will of course fix that.

View solution in original post

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Re: The host name contains illegal characters

Thanks StephenB thought that was the case.

will renane amd reboot.

 

Jim

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