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libvirtd

Linux Virtualization Management Daemon

LIBVIRTD(8)

System Manager's Manual

libvirtd(8)

VIRTUAL MACHINE MANAGEMENT

libvirtd manages virtual machines through various hypervisors:

QEMU/KVM: Full virtualization on x86_64 and other architectures
Xen: Paravirtualization and full virtualization
LXC: Linux containers
OpenVZ: Container-based virtualization

Common Commands

VM Management

virsh list --all virsh start <domain> virsh shutdown <domain> virsh destroy <domain>

Network Management

virsh net-list --all virsh net-start <network> virsh net-destroy <network>

Storage Management

virsh pool-list --all virsh vol-list <pool> virsh pool-start <pool>

NETWORKING

libvirtd provides several networking options:

NAT: Network Address Translation for VM internet access
Bridge: Direct bridge to physical network interface
Routed: Static routing for VM networks
Isolated: Internal-only networks

STORAGE

Storage pools can be configured for various backends:

Directory: File-based storage in directories
LVM: Logical Volume Manager volumes
NFS: Network File System shares
iSCSI: Internet Small Computer Systems Interface

SECURITY

libvirtd implements several security features:

SELinux: Mandatory access control integration
AppArmor: Application-level access control
TLS: Encrypted communication channels
Authentication: SASL and polkit integration

LOGGING

Logging can be configured through the configuration file. Common log levels:

1: Errors only
2: Warnings and errors
3: Information, warnings, and errors
4: Debug information

FILES

/etc/libvirt/libvirtd.conf: Main configuration file
/var/run/libvirt/libvirt-sock: Unix domain socket
/var/log/libvirt/libvirtd.log: Log file
/var/run/libvirt/libvirtd.pid: PID file

SEE ALSO

virsh(1), virt-manager(1), libvirt(3), libvirtd.conf(5)

BUGS

Please report bugs to the libvirt mailing list: [email protected]

AUTHOR

libvirtd was written by the libvirt project team.

COPYRIGHT

Copyright © 2006-2024 Red Hat, Inc. and others. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.