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When libvirtd starts it it will sanity check its own certs, and before libvirt clients connect to a remote server they will sanity check their own certs. This patch allows such sanity checking to be skipped. There is no strong reason to need to do this, other than to bypass possible libvirt bugs in sanity checking, or for testing purposes. libvirt.conf gains tls_no_sanity_certificate parameter to go along with tls_no_verify_certificate. The remote driver client URIs gain a no_sanity URI parameter * daemon/test_libvirtd.aug, daemon/libvirtd.conf, daemon/libvirtd.c, daemon/libvirtd.aug: Add parameter to allow cert sanity checks to be skipped * src/remote/remote_driver.c: Add no_sanity parameter to skip cert checks * src/rpc/virnettlscontext.c, src/rpc/virnettlscontext.h: Add new parameter for skipping sanity checks independantly of skipping session cert validation checks
554 lines
22 KiB
Plaintext
554 lines
22 KiB
Plaintext
module Test_libvirtd =
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let conf = "# Master libvirt daemon configuration file
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#
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# For further information consult http://libvirt.org/format.html
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#################################################################
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#
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# Network connectivity controls
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#
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# Flag listening for secure TLS connections on the public TCP/IP port.
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# NB, must pass the --listen flag to the libvirtd process for this to
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# have any effect.
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#
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# It is necessary to setup a CA and issue server certificates before
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# using this capability.
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#
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# This is enabled by default, uncomment this to disable it
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listen_tls = 0
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# Listen for unencrypted TCP connections on the public TCP/IP port.
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# NB, must pass the --listen flag to the libvirtd process for this to
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# have any effect.
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#
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# Using the TCP socket requires SASL authentication by default. Only
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# SASL mechanisms which support data encryption are allowed. This is
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# DIGEST_MD5 and GSSAPI (Kerberos5)
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#
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# This is disabled by default, uncomment this to enable it.
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listen_tcp = 1
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# Override the port for accepting secure TLS connections
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# This can be a port number, or service name
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#
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tls_port = \"16514\"
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# Override the port for accepting insecure TCP connections
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# This can be a port number, or service name
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#
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tcp_port = \"16509\"
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# Override the default configuration which binds to all network
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# interfaces. This can be a numeric IPv4/6 address, or hostname
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#
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listen_addr = \"192.168.0.1\"
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# Flag toggling mDNS advertizement of the libvirt service.
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#
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# Alternatively can disable for all services on a host by
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# stopping the Avahi daemon
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#
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# This is enabled by default, uncomment this to disable it
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mdns_adv = 0
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# Override the default mDNS advertizement name. This must be
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# unique on the immediate broadcast network.
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#
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# The default is \"Virtualization Host HOSTNAME\", where HOSTNAME
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# is subsituted for the short hostname of the machine (without domain)
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#
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mdns_name = \"Virtualization Host Joe Demo\"
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#################################################################
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#
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# UNIX socket access controls
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#
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# Set the UNIX domain socket group ownership. This can be used to
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# allow a 'trusted' set of users access to management capabilities
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# without becoming root.
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#
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# This is restricted to 'root' by default.
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unix_sock_group = \"libvirt\"
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# Set the UNIX socket permissions for the R/O socket. This is used
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# for monitoring VM status only
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#
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# Default allows any user. If setting group ownership may want to
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# restrict this to:
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unix_sock_ro_perms = \"0777\"
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# Set the UNIX socket permissions for the R/W socket. This is used
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# for full management of VMs
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#
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# Default allows only root. If PolicyKit is enabled on the socket,
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# the default will change to allow everyone (eg, 0777)
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#
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# If not using PolicyKit and setting group ownership for access
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# control then you may want to relax this to:
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unix_sock_rw_perms = \"0770\"
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#################################################################
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#
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# Authentication.
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#
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# - none: do not perform auth checks. If you can connect to the
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# socket you are allowed. This is suitable if there are
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# restrictions on connecting to the socket (eg, UNIX
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# socket permissions), or if there is a lower layer in
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# the network providing auth (eg, TLS/x509 certificates)
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#
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# - sasl: use SASL infrastructure. The actual auth scheme is then
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# controlled from /etc/sasl2/libvirt.conf. For the TCP
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# socket only GSSAPI & DIGEST-MD5 mechanisms will be used.
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# For non-TCP or TLS sockets, any scheme is allowed.
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#
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# - polkit: use PolicyKit to authenticate. This is only suitable
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# for use on the UNIX sockets. The default policy will
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# require a user to supply their own password to gain
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# full read/write access (aka sudo like), while anyone
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# is allowed read/only access.
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#
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# Set an authentication scheme for UNIX read-only sockets
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# By default socket permissions allow anyone to connect
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#
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# To restrict monitoring of domains you may wish to enable
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# an authentication mechanism here
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auth_unix_ro = \"none\"
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# Set an authentication scheme for UNIX read-write sockets
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# By default socket permissions only allow root. If PolicyKit
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# support was compiled into libvirt, the default will be to
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# use 'polkit' auth.
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#
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# If the unix_sock_rw_perms are changed you may wish to enable
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# an authentication mechanism here
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auth_unix_rw = \"none\"
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# Change the authentication scheme for TCP sockets.
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#
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# If you don't enable SASL, then all TCP traffic is cleartext.
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# Don't do this outside of a dev/test scenario. For real world
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# use, always enable SASL and use the GSSAPI or DIGEST-MD5
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# mechanism in /etc/sasl2/libvirt.conf
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auth_tcp = \"sasl\"
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# Change the authentication scheme for TLS sockets.
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#
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# TLS sockets already have encryption provided by the TLS
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# layer, and limited authentication is done by certificates
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#
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# It is possible to make use of any SASL authentication
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# mechanism as well, by using 'sasl' for this option
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auth_tls = \"none\"
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#################################################################
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#
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# TLS x509 certificate configuration
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#
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# Override the default server key file path
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#
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key_file = \"/etc/pki/libvirt/private/serverkey.pem\"
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# Override the default server certificate file path
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#
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cert_file = \"/etc/pki/libvirt/servercert.pem\"
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# Override the default CA certificate path
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#
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ca_file = \"/etc/pki/CA/cacert.pem\"
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# Specify a certificate revocation list.
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#
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# Defaults to not using a CRL, uncomment to enable it
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crl_file = \"/etc/pki/CA/crl.pem\"
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#################################################################
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#
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# Authorization controls
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#
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# Flag to disable verification of client certificates
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#
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# Client certificate verification is the primary authentication mechanism.
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# Any client which does not present a certificate signed by the CA
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# will be rejected.
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#
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# Default is to always verify. Uncommenting this will disable
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# verification - make sure an IP whitelist is set
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tls_no_verify_certificate = 1
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tls_no_sanity_certificate = 1
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# A whitelist of allowed x509 Distinguished Names
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# This list may contain wildcards such as
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#
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# \"C=GB,ST=London,L=London,O=Red Hat,CN=*\"
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#
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# See the POSIX fnmatch function for the format of the wildcards.
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#
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# NB If this is an empty list, no client can connect, so comment out
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# entirely rather than using empty list to disable these checks
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#
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# By default, no DN's are checked
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tls_allowed_dn_list = [\"DN1\", \"DN2\"]
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# A whitelist of allowed SASL usernames. The format for usernames
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# depends on the SASL authentication mechanism. Kerberos usernames
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# look like username@REALM
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#
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# This list may contain wildcards such as
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#
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# \"*@EXAMPLE.COM\"
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#
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# See the POSIX fnmatch function for the format of the wildcards.
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#
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# NB If this is an empty list, no client can connect, so comment out
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# entirely rather than using empty list to disable these checks
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#
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# By default, no Username's are checked
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sasl_allowed_username_list = [
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\"joe@EXAMPLE.COM\",
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\"fred@EXAMPLE.COM\"
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]
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#################################################################
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#
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# Processing controls
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#
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# The maximum number of concurrent client connections to allow
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# over all sockets combined.
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max_clients = 20
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# The minimum limit sets the number of workers to start up
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# initially. If the number of active clients exceeds this,
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# then more threads are spawned, upto max_workers limit.
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# Typically you'd want max_workers to equal maximum number
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# of clients allowed
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min_workers = 5
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max_workers = 20
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# Total global limit on concurrent RPC calls. Should be
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# at least as large as max_workers. Beyond this, RPC requests
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# will be read into memory and queued. This directly impact
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# memory usage, currently each request requires 256 KB of
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# memory. So by default upto 5 MB of memory is used
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max_requests = 20
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# Limit on concurrent requests from a single client
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# connection. To avoid one client monopolizing the server
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# this should be a small fraction of the global max_requests
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# and max_workers parameter
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max_client_requests = 5
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# Logging level:
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log_level = 4
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# Logging outputs:
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log_outputs=\"4:stderr\"
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# Logging filters:
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log_filters=\"a\"
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# Auditing:
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audit_level = 2
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"
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test Libvirtd.lns get conf =
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{ "#comment" = "Master libvirt daemon configuration file" }
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{ "#comment" = "" }
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{ "#comment" = "For further information consult http://libvirt.org/format.html" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "################################################################" }
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{ "#comment" = "" }
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{ "#comment" = "Network connectivity controls" }
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{ "#comment" = "" }
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{ "#empty" }
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{ "#comment" = "Flag listening for secure TLS connections on the public TCP/IP port." }
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{ "#comment" = "NB, must pass the --listen flag to the libvirtd process for this to" }
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{ "#comment" = "have any effect." }
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{ "#comment" = "" }
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{ "#comment" = "It is necessary to setup a CA and issue server certificates before" }
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{ "#comment" = "using this capability." }
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{ "#comment" = "" }
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{ "#comment" = "This is enabled by default, uncomment this to disable it" }
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{ "listen_tls" = "0" }
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{ "#empty" }
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{ "#comment" = "Listen for unencrypted TCP connections on the public TCP/IP port." }
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{ "#comment" = "NB, must pass the --listen flag to the libvirtd process for this to" }
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{ "#comment" = "have any effect." }
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{ "#comment" = "" }
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{ "#comment" = "Using the TCP socket requires SASL authentication by default. Only" }
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{ "#comment" = "SASL mechanisms which support data encryption are allowed. This is" }
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{ "#comment" = "DIGEST_MD5 and GSSAPI (Kerberos5)" }
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{ "#comment" = "" }
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{ "#comment" = "This is disabled by default, uncomment this to enable it." }
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{ "listen_tcp" = "1" }
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{ "#empty" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "Override the port for accepting secure TLS connections" }
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{ "#comment" = "This can be a port number, or service name" }
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{ "#comment" = "" }
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{ "tls_port" = "16514" }
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{ "#empty" }
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{ "#comment" = "Override the port for accepting insecure TCP connections" }
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{ "#comment" = "This can be a port number, or service name" }
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{ "#comment" = "" }
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{ "tcp_port" = "16509" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "Override the default configuration which binds to all network" }
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{ "#comment" = "interfaces. This can be a numeric IPv4/6 address, or hostname" }
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{ "#comment" = "" }
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{ "listen_addr" = "192.168.0.1" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "Flag toggling mDNS advertizement of the libvirt service." }
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{ "#comment" = "" }
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{ "#comment" = "Alternatively can disable for all services on a host by" }
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{ "#comment" = "stopping the Avahi daemon" }
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{ "#comment" = "" }
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{ "#comment" = "This is enabled by default, uncomment this to disable it" }
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{ "mdns_adv" = "0" }
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{ "#empty" }
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{ "#comment" = "Override the default mDNS advertizement name. This must be" }
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{ "#comment" = "unique on the immediate broadcast network." }
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{ "#comment" = "" }
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{ "#comment" = "The default is \"Virtualization Host HOSTNAME\", where HOSTNAME" }
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{ "#comment" = "is subsituted for the short hostname of the machine (without domain)" }
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{ "#comment" = "" }
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{ "mdns_name" = "Virtualization Host Joe Demo" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "################################################################" }
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{ "#comment" = "" }
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{ "#comment" = "UNIX socket access controls" }
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{ "#comment" = "" }
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{ "#empty" }
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{ "#comment" = "Set the UNIX domain socket group ownership. This can be used to" }
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{ "#comment" = "allow a 'trusted' set of users access to management capabilities" }
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{ "#comment" = "without becoming root." }
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{ "#comment" = "" }
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{ "#comment" = "This is restricted to 'root' by default." }
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{ "unix_sock_group" = "libvirt" }
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{ "#empty" }
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{ "#comment" = "Set the UNIX socket permissions for the R/O socket. This is used" }
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{ "#comment" = "for monitoring VM status only" }
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{ "#comment" = "" }
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{ "#comment" = "Default allows any user. If setting group ownership may want to" }
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{ "#comment" = "restrict this to:" }
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{ "unix_sock_ro_perms" = "0777" }
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{ "#empty" }
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{ "#comment" = "Set the UNIX socket permissions for the R/W socket. This is used" }
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{ "#comment" = "for full management of VMs" }
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{ "#comment" = "" }
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{ "#comment" = "Default allows only root. If PolicyKit is enabled on the socket," }
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{ "#comment" = "the default will change to allow everyone (eg, 0777)" }
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{ "#comment" = "" }
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{ "#comment" = "If not using PolicyKit and setting group ownership for access" }
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{ "#comment" = "control then you may want to relax this to:" }
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{ "unix_sock_rw_perms" = "0770" }
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{ "#empty" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "################################################################" }
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{ "#comment" = "" }
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{ "#comment" = "Authentication." }
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{ "#comment" = "" }
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{ "#comment" = "- none: do not perform auth checks. If you can connect to the" }
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{ "#comment" = "socket you are allowed. This is suitable if there are" }
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{ "#comment" = "restrictions on connecting to the socket (eg, UNIX" }
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{ "#comment" = "socket permissions), or if there is a lower layer in" }
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{ "#comment" = "the network providing auth (eg, TLS/x509 certificates)" }
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{ "#comment" = "" }
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{ "#comment" = "- sasl: use SASL infrastructure. The actual auth scheme is then" }
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{ "#comment" = "controlled from /etc/sasl2/libvirt.conf. For the TCP" }
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{ "#comment" = "socket only GSSAPI & DIGEST-MD5 mechanisms will be used." }
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{ "#comment" = "For non-TCP or TLS sockets, any scheme is allowed." }
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{ "#comment" = "" }
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{ "#comment" = "- polkit: use PolicyKit to authenticate. This is only suitable" }
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{ "#comment" = "for use on the UNIX sockets. The default policy will" }
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{ "#comment" = "require a user to supply their own password to gain" }
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{ "#comment" = "full read/write access (aka sudo like), while anyone" }
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{ "#comment" = "is allowed read/only access." }
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{ "#comment" = "" }
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{ "#comment" = "Set an authentication scheme for UNIX read-only sockets" }
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{ "#comment" = "By default socket permissions allow anyone to connect" }
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{ "#comment" = "" }
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{ "#comment" = "To restrict monitoring of domains you may wish to enable" }
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{ "#comment" = "an authentication mechanism here" }
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{ "auth_unix_ro" = "none" }
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{ "#empty" }
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{ "#comment" = "Set an authentication scheme for UNIX read-write sockets" }
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{ "#comment" = "By default socket permissions only allow root. If PolicyKit" }
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{ "#comment" = "support was compiled into libvirt, the default will be to" }
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{ "#comment" = "use 'polkit' auth." }
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{ "#comment" = "" }
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{ "#comment" = "If the unix_sock_rw_perms are changed you may wish to enable" }
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{ "#comment" = "an authentication mechanism here" }
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{ "auth_unix_rw" = "none" }
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{ "#empty" }
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{ "#comment" = "Change the authentication scheme for TCP sockets." }
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{ "#comment" = "" }
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{ "#comment" = "If you don't enable SASL, then all TCP traffic is cleartext." }
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{ "#comment" = "Don't do this outside of a dev/test scenario. For real world" }
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{ "#comment" = "use, always enable SASL and use the GSSAPI or DIGEST-MD5" }
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{ "#comment" = "mechanism in /etc/sasl2/libvirt.conf" }
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{ "auth_tcp" = "sasl" }
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{ "#empty" }
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{ "#comment" = "Change the authentication scheme for TLS sockets." }
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{ "#comment" = "" }
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{ "#comment" = "TLS sockets already have encryption provided by the TLS" }
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{ "#comment" = "layer, and limited authentication is done by certificates" }
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{ "#comment" = "" }
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{ "#comment" = "It is possible to make use of any SASL authentication" }
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{ "#comment" = "mechanism as well, by using 'sasl' for this option" }
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{ "auth_tls" = "none" }
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{ "#empty" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "################################################################" }
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{ "#comment" = "" }
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{ "#comment" = "TLS x509 certificate configuration" }
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{ "#comment" = "" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "Override the default server key file path" }
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{ "#comment" = "" }
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{ "key_file" = "/etc/pki/libvirt/private/serverkey.pem" }
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{ "#empty" }
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{ "#comment" = "Override the default server certificate file path" }
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{ "#comment" = "" }
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{ "cert_file" = "/etc/pki/libvirt/servercert.pem" }
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{ "#empty" }
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{ "#comment" = "Override the default CA certificate path" }
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{ "#comment" = "" }
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{ "ca_file" = "/etc/pki/CA/cacert.pem" }
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{ "#empty" }
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{ "#comment" = "Specify a certificate revocation list." }
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{ "#comment" = "" }
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{ "#comment" = "Defaults to not using a CRL, uncomment to enable it" }
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{ "crl_file" = "/etc/pki/CA/crl.pem" }
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{ "#empty" }
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{ "#empty" }
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{ "#empty" }
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{ "#comment" = "################################################################" }
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{ "#comment" = "" }
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{ "#comment" = "Authorization controls" }
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{ "#comment" = "" }
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{ "#empty" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Flag to disable verification of client certificates" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "Client certificate verification is the primary authentication mechanism." }
|
|
{ "#comment" = "Any client which does not present a certificate signed by the CA" }
|
|
{ "#comment" = "will be rejected." }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "Default is to always verify. Uncommenting this will disable" }
|
|
{ "#comment" = "verification - make sure an IP whitelist is set" }
|
|
{ "tls_no_verify_certificate" = "1" }
|
|
{ "tls_no_sanity_certificate" = "1" }
|
|
{ "#empty" }
|
|
{ "#empty" }
|
|
{ "#comment" = "A whitelist of allowed x509 Distinguished Names" }
|
|
{ "#comment" = "This list may contain wildcards such as" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "\"C=GB,ST=London,L=London,O=Red Hat,CN=*\"" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "See the POSIX fnmatch function for the format of the wildcards." }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "NB If this is an empty list, no client can connect, so comment out" }
|
|
{ "#comment" = "entirely rather than using empty list to disable these checks" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "By default, no DN's are checked" }
|
|
{ "tls_allowed_dn_list"
|
|
{ "1" = "DN1"}
|
|
{ "2" = "DN2"}
|
|
}
|
|
{ "#empty" }
|
|
{ "#empty" }
|
|
{ "#comment" = "A whitelist of allowed SASL usernames. The format for usernames" }
|
|
{ "#comment" = "depends on the SASL authentication mechanism. Kerberos usernames" }
|
|
{ "#comment" = "look like username@REALM" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "This list may contain wildcards such as" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "\"*@EXAMPLE.COM\"" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "See the POSIX fnmatch function for the format of the wildcards." }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "NB If this is an empty list, no client can connect, so comment out" }
|
|
{ "#comment" = "entirely rather than using empty list to disable these checks" }
|
|
{ "#comment" = "" }
|
|
{ "#comment" = "By default, no Username's are checked" }
|
|
{ "sasl_allowed_username_list"
|
|
{ "1" = "joe@EXAMPLE.COM" }
|
|
{ "2" = "fred@EXAMPLE.COM" }
|
|
}
|
|
{ "#empty" }
|
|
{ "#empty" }
|
|
{ "#comment" = "################################################################"}
|
|
{ "#comment" = ""}
|
|
{ "#comment" = "Processing controls"}
|
|
{ "#comment" = ""}
|
|
{ "#empty" }
|
|
{ "#comment" = "The maximum number of concurrent client connections to allow"}
|
|
{ "#comment" = "over all sockets combined."}
|
|
{ "max_clients" = "20" }
|
|
{ "#empty" }
|
|
{ "#empty" }
|
|
{ "#comment" = "The minimum limit sets the number of workers to start up"}
|
|
{ "#comment" = "initially. If the number of active clients exceeds this,"}
|
|
{ "#comment" = "then more threads are spawned, upto max_workers limit."}
|
|
{ "#comment" = "Typically you'd want max_workers to equal maximum number"}
|
|
{ "#comment" = "of clients allowed"}
|
|
{ "min_workers" = "5" }
|
|
{ "max_workers" = "20" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Total global limit on concurrent RPC calls. Should be" }
|
|
{ "#comment" = "at least as large as max_workers. Beyond this, RPC requests" }
|
|
{ "#comment" = "will be read into memory and queued. This directly impact" }
|
|
{ "#comment" = "memory usage, currently each request requires 256 KB of" }
|
|
{ "#comment" = "memory. So by default upto 5 MB of memory is used" }
|
|
{ "max_requests" = "20" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Limit on concurrent requests from a single client" }
|
|
{ "#comment" = "connection. To avoid one client monopolizing the server" }
|
|
{ "#comment" = "this should be a small fraction of the global max_requests" }
|
|
{ "#comment" = "and max_workers parameter" }
|
|
{ "max_client_requests" = "5" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Logging level:" }
|
|
{ "log_level" = "4" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Logging outputs:" }
|
|
{ "log_outputs" = "4:stderr" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Logging filters:" }
|
|
{ "log_filters" = "a" }
|
|
{ "#empty" }
|
|
{ "#comment" = "Auditing:" }
|
|
{ "audit_level" = "2" }
|