Fedora virt-* commands

virt-* commands in Fedora, or (in italics) coming up:

virt-cat Download a file from inside a VM.
virt-clone Clone a VM.
virt-convert Convert a VM disk image.
virt-df Show real disk space used.
virt-dmesg Show kernel messages from VM.
virt-edit Edit a file in a VM.
virt-ifconfig Show IP address.
virt-image Portable XML description of VMs.
virt-inspector Describe what’s in a VM.
virt-install Install a new VM.
virt-ls List files in a VM.
virt-manager Brilliant graphical manager.
virt-p2v [not an actual command] Take physical machine, turn into VM.
virt-ping Is VM up?
virt-pki-validate Validate libvirt remote PKI.
virt-ps List processes in VM.
virt-rescue Get a rescue shell for unbootable VM.
virt-tar Archive files from or upload to VM.
virt-top “top” for VMs.
virt-uname OS version in a VM.
virt-uptime Uptime of a VM.
virt-v2v Convert between virt types.
virt-viewer Graphical console.
virt-what In a VM?
virt-xml-validate Validate libvirt XML.
virsh Libvirt shell.
guestfish Libguestfs shell.
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15 Comments

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15 responses to “Fedora virt-* commands

  1. kashyap

    Hi Rich, firstly great list of tools.

    I’m just curious,
    for the virt-pki-validate(and other PKI related stuff)
    are you aware of the reasons of choosing GNUTLS library over NSS. (I’m not trying to suggest one thing is better over the other.)

    And I’m sure there must’ve been some discussion and rationale behind choosing crypto library.

    I noticed, there is an ongoing effort to consolidate cryptography in fedora.(and I understand libvirt is a distro agnostic project)
    http://fedoraproject.org/wiki/FedoraCryptoConsolidation

    just would like to know your thoughts.

  2. rich

    [A]re you aware of the reasons of choosing GNUTLS library over NSS.

    Yes — the reason behind this was because GnuTLS is well-documented, whereas NSS is impenetrable.

    We considered both libraries in depth for libvirt. No one could explain to us how to use NSS, whereas GnuTLS comes with excellent, simple examples, which were easy for us to copy and modify for our needs:

    http://www.gnu.org/software/gnutls/manual/html_node/Client-examples.html

  3. kashyap

    (not intending to pick on what you’ve said)

    In an enterprise deployment, if a (security concerned ) customer asks, is your crypto library FIPS validated?

  4. rich

    I suspect the answer is just “it’s not FIPS validated”.

    The real problem is complete lack of documentation for NSS. If developers don’t understand how to use it, then it won’t matter how much FIPS validation is going on because no one will be using it.

  5. GNUTLS uses libgcrypt. Various crypto alogrithms in libgcrypt:
    AES, 3DES, SHA1, SHA2, RSA, DSA, RNG
    are FIPS certified:
    http://csrc.nist.gov/groups/STM/cavp/validation.html

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  11. Anil

    Is virt-tools available in F16? I did a quick search, looks like it is not there. The command I am interested is virt-uptime

  12. feeliwood

    how about virt-ifconfig, it wasn`t made into production too?

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