관리해야할 서버가 늘어나면서 서버목록을 정리해 두기위한 물리서버/가상서버를 명령어만으로 확인할수 있는 방법 몇가지 소개하며 명령어로 하드웨어 플래그를 정의한 값들을 정리해봅니다.
테스트환경
https://www.iwinv.kr/server/server.html
OS : Ubuntu 16.04 LTS
1. dmidecode
– DMI table decoder
# apt-get install dmidecode :: 실서버 # dmidecode -s system-manufacturer System manufacturer :: 가상서버 # dmidecode -s system-manufacturer OpenStack Foundation
2. fecter
– Gather system infomation
– Collect and display facts about the system.
:: 실서버 # facter 2> /dev/null | grep virtual is_virtual => false virtual => physical :: 가상서버 # facter 2> /dev/null | grep virtual is_virtual => true virtual => kvm
3. lshw
– list hardware
:: 실서버
# lshw -class system
chonnom
description: Desktop Computer
product: System Product Name (To Be Filled By O.E.M.)
vendor: System manufacturer
version: System Version
serial: System Serial Number
width: 64 bits
capabilities: smbios-2.5 dmi-2.5 vsyscall32
configuration: boot=normal chassis=desktop family=To Be Filled By O.E.M.
sku=To Be Filled By O.E.M. uuid=E0326F05-8EFE-D511-884B-F46D04D2EF96
:: 가상서버
# lshw -class system
mojily-3340
description: Computer
product: OpenStack Nova
vendor: OpenStack Foundation
version: 13.1.2
serial: 7147e77f-cc07-9fbc-1042-1c75580ef237
width: 64 bits
capabilities: smbios-2.8 dmi-2.8 vsyscall32
configuration: boot=normal family=Virtual Machine uuid=7E7F3356-7641-D44E-AA09-7DBC84E85B0D
4. dmesg
– print or control the kernel ring buffer
:: 실서버 # dmesg |grep "Hypervisor" :: 가상서버 # dmesg |grep "Hypervisor" [ 0.000000] Hypervisor detected: KVM
5. hostnamectl
– Control the system hostname
:: 실서버 # hostnamectl Static hostname: chonnom Pretty hostname: CHONNOM Icon name: computer-desktop Chassis: desktop Machine ID: c1b0b3f716774db991030221bf09c09f Boot ID: 07b97a3e6a6c43f3a137787bf42a79d7 Operating System: Ubuntu 16.04.2 LTS Kernel: Linux 4.4.0-93-generic Architecture: x86-64 :: 가상서버 # hostnamectl Static hostname: mojily-3340 Icon name: computer-vm Chassis: vm Machine ID: 56337f7e41764ed4aa097dbc84e85b0d Boot ID: 90f2a54bfae4425fad11253d0fc45aa1 Virtualization: kvm Operating System: Ubuntu 16.04.2 LTS Kernel: Linux 4.4.0-93-generic Architecture: x86-64
6. systemd-detect-virt
– Detect execution in a virtualized environment
:: 실서버 # systemd-detect-virt none :: 가상서버 # systemd-detect-virt kvm
※ 이외에도 imvirt(perl), virt-what 명령어를 통해서도 가능합니다.