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CentOS 7에 KVM 하이퍼바이저 설치
테스트 환경
$ cat /etc/redhat-release
CentOS Linux release 7.8.2003 (Core)
$ getconf LONG_BIT
64
$ uname -a
Linux ntvm-peer01 3.10.0-1127.19.1.el7.x86_64 #1 SMP Tue Aug 25 17:23:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux가상화 지원 여부 확인
$ grep -E '(vmx|svm)' /proc/cpuinfoKVM 관련 패키지 설치
$ yum install -y libvirt qemu-kvm virt-install virt-manager**의존성 관련하여 125개 정도의 패키지 업데이트되거나 추가로 설치된다.
libvirt 서비스 활성화
$ systemctl --now enable libvirtd
$ systemctl status libvirtd
● libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2020-11-18 21:57:24 KST; 13s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 9190 (libvirtd)
Tasks: 19 (limit: 32768)
CGroup: /system.slice/libvirtd.service
├─9190 /usr/sbin/libvirtd
├─9289 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/li...
└─9290 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/li...
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: started, version 2.76 cachesize 150
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHCPv6 no-Lua...notify
Nov 18 21:57:24 ntvm-peer01 dnsmasq-dhcp[9289]: DHCP, IP range 192.168.122.2 -- 192.168.122.254, lease time 1h
Nov 18 21:57:24 ntvm-peer01 dnsmasq-dhcp[9289]: DHCP, sockets bound exclusively to interface virbr0
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: reading /etc/resolv.conf
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: using nameserver 1.1.1.1#53
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: using nameserver 8.8.8.8#53
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: read /etc/hosts - 2 addresses
Nov 18 21:57:24 ntvm-peer01 dnsmasq[9289]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
Nov 18 21:57:24 ntvm-peer01 dnsmasq-dhcp[9289]: read /var/lib/libvirt/dnsmasq/default.hostsfile
Hint: Some lines were ellipsized, use -l to show in full.bridge 네트워크 설정
ifcfg-br0 생성
$ vim /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
TYPE=Bridge
BOOTPROTO=none
ONBOOT=yes
IPADDR=10.255.255.241
NETMASK=255.255.255.0
GATEWAY=10.255.255.1ifcfg-enp0s3 편집(기존 인터페이스)
$ vim /etc/sysconfig/network-scripts/ifcfg-enp0s3
TYPE=Ethernet
HWADDR=08:00:27:76:a7:2e
DEVICE=enp0s3
ONBOOT=yes
BRIDGE=br0서버 재기동(reboot) 후 IP 정보 확인
$ reboot
$ ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.255.255.241 netmask 255.255.255.0 broadcast 10.255.255.255
inet6 fe80::a00:27ff:fe76:a72e prefixlen 64 scopeid 0x20<link>
ether 08:00:27:76:a7:2e txqueuelen 1000 (Ethernet)
RX packets 75 bytes 7063 (6.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 75 bytes 8832 (8.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 08:00:27:76:a7:2e txqueuelen 1000 (Ethernet)
RX packets 91 bytes 9523 (9.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 75 bytes 8976 (8.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ brctl show
bridge name bridge id STP enabled interfaces
br0 8000.08002776a72e no enp0s3
virbr0 8000.525400ad503d yes virbr0-nicPC에 Xming 설치
** Xming 설치 후 트레이에 아이콘 확인
putty와 Xming 연동
세션 생성
- Host Name
- Port
Enable X11 forwarding 체크
- Connection -> SSH -> X11 -> X11 forwarding => Enable X11 forwarding
세션 저장
- Session -> Save
저장한 세션으로 서버 접속
- 저장한 세션 -> Load
터미널에서 virt-manager 명령어 입력
$ virt-manager
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