core-admin/doc/qvm-tools/qvm-service.rst

===========
qvm-service
===========

NAME
====
qvm-service - manage (Qubes-specific) services started in VM

:Date:   2012-05-30

SYNOPSIS
========
| qvm-service [-l] <vmname>
| qvm-service [-e|-d|-D] <vmname> <service>

OPTIONS
=======
-h, --help
    Show this help message and exit
-l, --list
    List services (default action)
-e, --enable
    Enable service
-d, --disable
    Disable service
-D, --default
    Reset service to its default state (remove from the list). Default state
    means "lets VM choose" and can depend on VM type (NetVM, AppVM etc).

SUPPORTED SERVICES
==================

This list can be incomplete as VM can implement any additional service without knowlege of qubes-core code.

meminfo-writer
    Default: enabled everywhere excluding NetVM

    This service reports VM memory usage to dom0, which effectively enables dynamic memory management for the VM.

    *Note:* this service is enforced to be set by dom0 code. If you try to
    remove it (reset to defult state), will be recreated with the rule: enabled
    if VM have no PCI devices assigned, otherwise disabled.

qubes-dvm
    Default: disabled

    Used internally when creating DispVM savefile.

qubes-firewall
    Default: enabled only in ProxyVM

    Dynamic firewall manager, based on settings in dom0 (qvm-firewall, firewall tab in qubes-manager).
    This service is not supported in netvms.
    
qubes-network
    Default: enabled only in NetVM and ProxyVM

    Expose network for other VMs. This includes enabling network forwarding, MASQUERADE, DNS redirection and basic firewall.

qubes-netwatcher
    Default: enabled only in ProxyVM

    Monitor IP change notification from NetVM. When received, reload qubes-firewall service (to force DNS resolution).
    This service makes sense only with qubes-firewall enabled.

qubes-update-check
    Default: enabled

    Notify dom0 about updates available for this VM. This is shown in qubes-manager as 'update-pending' flag.

cups
    Default: enabled only in AppVM

    Enable CUPS service. The user can disable cups in VM which do not need printing to speed up booting.

cron
    Default: disabled

    Enable CRON service.

network-manager
    Default: enabled in NetVM

    Enable NetworkManager. Only VM with direct access to network device needs
    this service, but can be useful in ProxyVM to ease VPN setup.

ntpd
    Default: disabled

    Enable NTPD service. By default Qubes calls ntpdate every 6 minutes in
    selected VM (aka ClockVM), then propagate the result using qrexec calls.
    Enabling ntpd *do not* disable this behaviour.

qubes-yum-proxy
    Deprecated name for qubes-updates-proxy.

qubes-updates-proxy
    Default: enabled in NetVM

    Provide proxy service, which allow access only to yum repos. Filtering is
    done based on URLs, so it shouldn't be used as leak control (pretty easy to
    bypass), but is enough to prevent some erroneous user actions.

yum-proxy-setup
    Deprecated name for updates-proxy-setup.

updates-proxy-setup
    Default: enabled in AppVM (also in templates)

    Setup yum at startup to use qubes-yum-proxy service.

    *Note:* this service is automatically enabled when you allow VM to access
    yum proxy (in firewall settings) and disabled when you deny access to yum
    proxy.

disable-default-route
    Default: disabled

    Disables the default route for networking.  Enabling  this  service
    will  prevent the creation of the default route, but the VM will
    still be able to reach it's direct neighbors.  The functionality
    is implemented in /usr/lib/qubes/setup-ip.

disable-dns-server
    Default: disabled

    Enabling this service will result in an empty /etc/resolv.conf.
    The functionality is implemented in /usr/lib/qubes/setup-ip.


AUTHORS
=======
| Joanna Rutkowska <joanna at invisiblethingslab dot com>
| Rafal Wojtczuk <rafal at invisiblethingslab dot com>
| Marek Marczykowski <marmarek at invisiblethingslab dot com>