Transient hostname was changed in a server

Sachith Muhandiram

1/13/23, 1:52 PM

In one of our production server automatically set transient hostname.
hostnamectl status shows

   Static hostname: abc11.example.com
Transient hostname: I
         Icon name: computer-vm
           Chassis: vm
        Machine ID: xxxxxx
           Boot ID: xxxxxx
    Virtualization: microsoft
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-957.10.1.el7.x86_64
      Architecture: x86-64

Server was not rebooted recently (up for 439 days)

In message logs:

Sep  6 12:33:42 abc11 dbus[6119]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service'
Sep  6 12:33:43 abc11 dbus[6119]: [system] Successfully activated service 'org.freedesktop.hostname1'
Sep  6 13:15:50 abc11 dbus[6119]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service'
Sep  6 13:15:50 abc11 dbus[6119]: [system] Successfully activated service 'org.freedesktop.hostname1'
Sep  6 13:53:41 abc11 dbus[6119]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service'

Could this be an issue related to network router as described here? Or any other issue such as attack?

This server deployed in client's data centre.

0 + 0

linux

router

centos

hostname

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Transient hostname was changed in a server

TH: ชื่อโฮสต์ชั่วคราวถูกเปลี่ยนในเซิร์ฟเวอร์

RO: Numele de gazdă tranzitoriu a fost schimbat pe un server

RU: Временное имя хоста было изменено на сервере

VI: Tên máy chủ tạm thời đã được thay đổi trong một máy chủ

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