trac.x0blr.com:notes:mysticpeg
Table of Contents
Current state of Mystic Peg
Server
Hosting
This is hosted on easyspace,
- NO - can be scaled, custom built server
- NO - can deploy our own OS, requires a support ticket
- YES - can request a KVMoIP session via web interface request
IP Address
$ host mysticpeg (No URL Defined) mysticpeg has address 78.129.208.78
Other Static IP addresses linked to the server include
78.129.208.24, 78.129.208.29, 78.129.208.77, and 78.129.208.124
The IP Configuration of the Host and VMs is as follows
<blockquote>
IP: (Choose From Above) Netmask: 255.255.255.0 Gateway: 78.129.208.1 DNS: 8.8.8.8, 8.8.4.4 (Change this to use your own, as currently using Google DNS)
</blockquote>
Specification
IS-56088 (RS Dedicated Server)- Intel Xeon E3-1230 v2
- 8GB Memory
- Adaptec 5405 RAID Controller
- 2x 2TB SATA HDD 7200rpm 3.5"
- RAID 1
- CentOS 7 x64
- Unmanaged SLA
- Unmetered Bandwidth
Operating System
MYSTIC:/root $ cat /etc/os-release NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" MYSTIC:/root $
File System
Filesystem Size Used Avail Use% Mounted on /dev/mapper/cl-root 11G 8.0G 3.1G 73% / devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 397M 3.5G 11% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sda1 1014M 379M 636M 38% /boot /dev/mapper/cl-home 1.4T 1.2T 246G 83% /home tmpfs 780M 52K 780M 1% /run/user/0 tmpfs 780M 0 780M 0% /run/user/1000
LVM Config
MYSTIC:/root $ mount | grep mapper /dev/mapper/cl-root on / type xfs (rw,relatime,attr2,inode64,noquota) /dev/mapper/cl-home on /home type xfs (rw,relatime,attr2,inode64,noquota) MYSTIC:/root $
MYSTIC:/root $ pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name cl PV Size <1.82 TiB / not usable 0 Allocatable yes PE Size 4.00 MiB Total PE 475898 Free PE 112509 Allocated PE 363389 PV UUID KZ24Nv-RYPC-kfFk-q3hA-cAJm-I9yt-2BGr4f MYSTIC:/root $
MYSTIC:/root $ vgdisplay --- Volume group --- VG Name cl System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 9 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 1 Act PV 1 VG Size <1.82 TiB PE Size 4.00 MiB Total PE 475898 Alloc PE / Size 363389 / <1.39 TiB Free PE / Size 112509 / <439.49 GiB VG UUID JUzGXT-a91Q-xnqI-Zgfr-NUTB-Rhua-8A2pou MYSTIC:/root $
MYSTIC:/root $ lvdisplay --- Logical volume --- LV Path /dev/cl/swap LV Name swap VG Name cl LV UUID Lv09OG-1Mt0-khfK-QcLs-dDac-f39l-1tREMR LV Write Access read/write LV Creation host, time localhost.localdomain, 2019-08-21 00:39:08 +0100 LV Status available # open 2 LV Size 8.00 GiB Current LE 2048 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1 --- Logical volume --- LV Path /dev/cl/home LV Name home VG Name cl LV UUID J3Jqem-lrOi-l8jO-mc6o-ye9J-9a1K-eFGWXA LV Write Access read/write LV Creation host, time localhost.localdomain, 2019-08-21 00:39:08 +0100 LV Status available # open 1 LV Size <1.37 TiB Current LE 358525 Segments 2 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 --- Logical volume --- LV Path /dev/cl/root LV Name root VG Name cl LV UUID V3jgzI-T3nt-C5xv-o5S3-ADcx-aLA5-aAu6xL LV Write Access read/write LV Creation host, time localhost.localdomain, 2019-08-21 00:39:12 +0100 LV Status available # open 1 LV Size 11.00 GiB Current LE 2816 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 MYSTIC:/root $
Network config
MYSTIC:/root $ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:25:90:7e:11:a9 brd ff:ff:ff:ff:ff:ff
inet 78.129.208.78/32 brd 78.129.208.78 scope global noprefixroute eth0
valid_lft forever preferred_lft forever
inet6 fe80::225:90ff:fe7e:11a9/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 00:25:90:7e:11:a8 brd ff:ff:ff:ff:ff:ff
9: br1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 3e:a4:64:49:e9:34 brd ff:ff:ff:ff:ff:ff
inet 78.129.208.78/24 brd 78.129.208.255 scope global noprefixroute br1
valid_lft forever preferred_lft forever
49: macvtap3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 500
link/ether 52:54:00:49:8b:a3 brd ff:ff:ff:ff:ff:ff
inet6 fe80::5054:ff:fe49:8ba3/64 scope link
valid_lft forever preferred_lft forever
50: macvtap0@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 500
link/ether 52:54:00:94:c1:be brd ff:ff:ff:ff:ff:ff
inet6 fe80::5054:ff:fe94:c1be/64 scope link
valid_lft forever preferred_lft forever
MYSTIC:/root $
Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1941/master tcp 0 0 0.0.0.0:22022 0.0.0.0:* LISTEN 1466/sshd tcp 0 0 127.0.0.1:5900 0.0.0.0:* LISTEN 10964/qemu-kvm tcp 0 0 127.0.0.1:5903 0.0.0.0:* LISTEN 17654/qemu-kvm tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd tcp 0 0 127.0.0.1:5910 0.0.0.0:* LISTEN 14681/Xvnc tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1454/cupsd tcp6 0 0 ::1:25 :::* LISTEN 1941/master tcp6 0 0 :::6556 :::* LISTEN 1470/xinetd tcp6 0 0 :::22022 :::* LISTEN 1466/sshd tcp6 0 0 :::111 :::* LISTEN 1/systemd tcp6 0 0 ::1:5910 :::* LISTEN 14681/Xvnc tcp6 0 0 ::1:631 :::* LISTEN 1454/cupsd udp 0 0 0.0.0.0:111 0.0.0.0:* 1/systemd udp 0 0 127.0.0.1:323 0.0.0.0:* 1060/chronyd udp 0 0 0.0.0.0:781 0.0.0.0:* 1030/rpcbind udp 0 0 0.0.0.0:5353 0.0.0.0:* 1057/avahi-daemon: udp 0 0 0.0.0.0:47106 0.0.0.0:* 1057/avahi-daemon: udp6 0 0 :::111 :::* 1/systemd udp6 0 0 ::1:323 :::* 1060/chronyd udp6 0 0 :::781 :::* 1030/rpcbind
SELinux
[root@mysticpeg ~]# getenforce Disabled [root@mysticpeg ~]#
Firewall
firewalld.service disabled
No iptables installed either
Looks like nothing has been configured
~XVNC is open to the world atm~
Misread the ipv6 address, it's local only
tcp6 0 0 ::1:5910 :::* LISTEN 14681/Xvnc
Virtual Machines
View information on KVM and the Virsh Process here
KVMs are all in /home/vms
drwx--x---+ 24 vms libvirt 4096 Nov 25 01:55 vms
WebVirManager is installed
Centos iso is in /home/root_iles/
-rw-r--r-- 1 qemu qemu 8572108800 Sep 29 14:20 CentOS-Stream-x86_64-dvd1.iso
MYSTIC:/home/vms $ du -hs * 0 backups 4.0K bin 0 Desktop 0 Documents 0 Downloads 0 Music 0 Pictures 0 Public 0 Templates 0 thinclient_drives 0 Videos 474G virtimg 4.0K vm 6.0M webvirtmgr MYSTIC:/home/vms $
Configured VMs
| VM | Use | qcow2 | Owner | Decomm |
| Poptarts | Unknown | Poptarts_rz.qcow2 | Darren | |
| Orville | Dave testbed for migration | Orville_rz.qcow2 | Dave | |
| Coffee | Unknown | Coffee_rz.qcow2<br />Coffee.vmdk | Darren | |
| www | Unknown | www_rz.qcow2 | Darren |
Current VM processes
qemu 10964 1 2 2019 ? 2-22:58:44 /usr/libexec/qemu-kvm -name Poptarts -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off,dump-guest-core=off -cpu IvyBridge-IBRS -m 512 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid a8d9e8d4-f66f-41b3-8b27-d1c32a6e9620 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-45-Poptarts/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/home/vms/virtimg/Poptarts_rz.qcow2,format=qcow2,if=none,id=drive-virtio-disk0 -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=27,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:94:c1:be,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-45-Poptarts/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -chardev spicevmc,id=charchannel1,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -device usb-tablet,id=input0,bus=usb.0,port=1 -spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on -vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=67108864 -global qxl-vga.vgamem_mb=16 -global qxl-vga.max_outputs=1 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=objrng0,filename=/dev/urandom -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x9 -msg timestamp=on
qemu 17654 1 6 2019 ? 8-15:47:42 /usr/libexec/qemu-kvm -name Orville -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off,dump-guest-core=off -cpu IvyBridge-IBRS -m 4604 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid a99c556e-93a8-4e0e-8a9b-aa8f7c88201f -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-44-Orville/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/home/vms/virtimg/Orville_rz.qcow2,format=qcow2,if=none,id=drive-virtio-disk0 -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=31,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:49:8b:a3,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-44-Orville/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -chardev spicevmc,id=charchannel1,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -device usb-tablet,id=input0,bus=usb.0,port=1 -spice port=5903,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on -vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=67108864 -global qxl-vga.vgamem_mb=16 -global qxl-vga.max_outputs=1 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=objrng0,filename=/dev/urandom -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x9 -msg timestamp=on
</file>
==== Autostart(ed|ing) VMs ====
<code>
[root@mysticpeg ~]# systemctl cat qemu-guest-agent.service
# /usr/lib/systemd/system/qemu-guest-agent.service
[Unit]
Description=QEMU Guest Agent
BindsTo=dev-virtio\x2dports-org.qemu.guest_agent.0.device
After=dev-virtio\x2dports-org.qemu.guest_agent.0.device
IgnoreOnIsolate=True
[Service]
UMask=0077
EnvironmentFile=/etc/sysconfig/qemu-ga
ExecStart=/usr/bin/qemu-ga \
--method=virtio-serial \
--path=/dev/virtio-ports/org.qemu.guest_agent.0 \
--blacklist=${BLACKLIST_RPC} \
-F${FSFREEZE_HOOK_PATHNAME}
StandardError=syslog
Restart=always
RestartSec=0
[Install]
WantedBy=dev-virtio\x2dports-org.qemu.guest_agent.0.device
[root@mysticpeg ~]#
VMs look to be built manually then configured for autostart through virsh
[root@mysticpeg ~]# virsh list --all Id Name State ---------------------------------------------------- 44 Orville running 45 Poptarts running - Coffee shut off - www shut off [root@mysticpeg ~]#
[root@mysticpeg ~]# virsh list --all --no-autostart Id Name State ---------------------------------------------------- [root@mysticpeg ~]# virsh list --all --autostart Id Name State ---------------------------------------------------- 44 Orville running 45 Poptarts running - Coffee shut off - www shut off [root@mysticpeg ~]#
Autostart VMs are launched by the libvirt service
[root@mysticpeg ~]# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-08-28 14:16:11 BST; 7 months 1 days ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 1569 (libvirtd)
Tasks: 18 (limit: 32768)
CGroup: /system.slice/libvirtd.service
└─1569 /usr/sbin/libvirtd
[root@mysticpeg ~]# systemctl cat libvirtd.service # /usr/lib/systemd/system/libvirtd.service # NB we don't use socket activation. When libvirtd starts it will # spawn any virtual machines registered for autostart. We want this # to occur on every boot, regardless of whether any client connects # to a socket. Thus socket activation doesn't have any benefit [Unit] Description=Virtualization daemon Requires=virtlogd.socket Requires=virtlockd.socket Wants=systemd-machined.service Before=libvirt-guests.service After=network.target After=dbus.service After=iscsid.service After=apparmor.service After=local-fs.target After=remote-fs.target After=systemd-logind.service After=systemd-machined.service Documentation=man:libvirtd(8) Documentation=https://libvirt.org [Service] Type=notify EnvironmentFile=-/etc/sysconfig/libvirtd ExecStart=/usr/sbin/libvirtd $LIBVIRTD_ARGS ExecReload=/bin/kill -HUP $MAINPID KillMode=process Restart=on-failure # At least 1 FD per guest, often 2 (eg qemu monitor + qemu agent). # eg if we want to support 4096 guests, we'll typically need 8192 FDs # If changing this, also consider virtlogd.service & virtlockd.service # limits which are also related to number of guests LimitNOFILE=8192 # The cgroups pids controller can limit the number of tasks started by # the daemon, which can limit the number of domains for some hypervisors. # A conservative default of 8 tasks per guest results in a TasksMax of # 32k to support 4096 guests. TasksMax=32768 [Install] WantedBy=multi-user.target Also=virtlockd.socket Also=virtlogd.socket [root@mysticpeg ~]#
/var/www/wiki.darrenwindle.co.uk/public_html/data/pages/trac.x0blr.com/notes/mysticpeg.txt · Last modified: 2024/12/01 08:40 by 127.0.0.1