My device’s rooted and has a custom hostname (CyanogenMod already provides this facility, and I verified it with https://play.google.com/store/apps/details?id=com.tiranodroid.change.hostname&referrer=utm_source%3Ddroidwiki.de%26utm_medium%3Darticle-view%26utm_campaign%3Darticlelink that it’s indeed correct in the system properties.

On WCG, the device turns out as just “android” (all-lowercase), on Enigma@HOME it’s “android_c753fa9d”, and in the event log, I have “reporting hostinfo os name: Android” but nothing about the hostname.

How can this be corrected?

One thing I notice is that /proc/sys/kernel/hostname contains “localhost” and my local PS1 has the device type “trltexx” instead of the chosen hostname…

But the hostname is “localhost”, not “android”, so clearly the client uses its own idea of a device name.

(And yes, I can edit such files.)

If two or more Android devices under the same account sign up as 'localhost', they are seen as one device. Therefore the change was made (4 years back) to name the host 'android-MAC-address'

The server code can check for domain name, IP addr, OS name, processor model and memory size on PC only, not on Android devices. So it cannot differentiate between two wildly differing in hardware Android devices when they're both called localhost.

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But the devices *have* a “host”name. It just happens to not be retrievable using the DNS resolver.