CacheDir /var/cache/cups
With "LogDir" can be defined where cups-browsed creates its debug log file
(if "DebugLogging file" is set).
LogDir /var/log/cups
The "DebugLogging" directive determines how should debug logging be done.
Into the file /var/log/cups/cups-browsed_log ("file"), to stderr ("stderr"), or
not at all ("none").
Note that if cups-browsed is running as a system service (for example via systemd) logging to stderr makes the log output going to the journal or syslog. Only if you run cups-browsed from the command line (for development or debugging) it will actually appear on stderr.
DebugLogging file
DebugLogging stderr
DebugLogging file stderr
DebugLogging none
Only browse remote printers (via DNS-SD or CUPS browsing) from
selected servers using the "BrowseAllow", "BrowseDeny", and
"BrowseOrder" directives
This serves for restricting the choice of printers in print dialogs to trusted servers or to reduce the number of listed printers in the print dialogs to a more user-friendly amount in large networks with very many shared printers.
This only filters the selection of remote printers for which cups-browsed creates local queues. If the print dialog uses other mechanisms to list remote printers as for example direct DNS-SD access, cups-browsed has no influence. cups-browsed also does not prevent the user from manually accessing non-listed printers.
"BrowseAllow": Accept printers from these hosts or networks. If there are only "BrowseAllow" lines and no "BrowseOrder" and/or "BrowseDeny" lines, only servers matching at last one "BrowseAllow" line are accepted.
"BrowseDeny": Deny printers from these hosts or networks. If there are only "BrowseDeny" lines and no "BrowseOrder" and/or "BrowseAllow" lines, all servers NOT matching any of the "BrowseDeny" lines are accepted.
"BrowseOrder": Determine the order in which "BrowseAllow" and "BrowseDeny" lines are applied. With "BrowseOrder Deny,Allow" in the beginning all servers are accepted, then the "BrowseDeny" lines are applied to exclude unwished servers or networks and after that the "BrowseAllow" lines to re-include servers or networks. With "BrowseOrder Allow,Deny" we start with denying all servers, then applying the "BrowseAllow" lines and afterwards the "BrowseDeny" lines.
Default for "BrowseOrder" is "Deny.Allow" if there are both "BrowseAllow" and "BrowseDeny" lines.
If there are no "Browse..." lines at all, all servers are accepted.
BrowseAllow All
BrowseAllow 192.168.7.20
BrowseAllow 192.168.7.0/24
BrowseAllow 192.168.7.0/255.255.255.0
BrowseDeny All
BrowseDeny 192.168.1.13
BrowseDeny 192.168.3.0/24
BrowseDeny 192.168.3.0/255.255.255.0
BrowseOrder Deny,Allow
BrowseOrder Allow,Deny
Filtering of remote printers by other properties than IP addresses of
their servers
Often the desired selection of printers cannot be reached by only taking into account the IP addresses of the servers. For these cases there is the BrowseFilter directive to filter by most of the known properties of the printer.
By default there is no BrowseFilter line meaning that no filtering is applied.
To do filtering one can supply one or more BrowseFilter directives like this:
BrowseFilter [NOT] [EXACT] <FIELD> [<VALUE>]
The BrowseFilter directive always starts with the word "BrowseFilter"
and it must at least contain the name of the data field (<FIELD>) of
the printer's properties to which it should apply.
Available field names are:
name: Name of the local print queue to be created
host: Host name of the remote print server
port: Port through which the printer is accessed on the server
service: DNS/SD service name of the remote printer
domain: Domain of the remote print server
Also all field names in the TXT records of DNS-SD-advertised printers
are valid, like "color", "duplex", "pdl", ... If the field name of the
filter rule does not exist for the printer, the rule is skipped.
The optional <VALUE> field is either the exact value (when the option EXACT is supplied) or a regular expression (Run "man 7 regex" in a terminal window) to be matched with the data field.
If no <VALUE> filed is supplied, rules with field names of the TXT record are considered for boolean matching (true/false) of boolean field (like duplex, which can have the values "T" for true and "F" for false).
If the option NOT is supplied, the filter rule is fulfilled if the regular expression or the exact value DOES NOT match the content of the data field. In a boolean rule (without <VALUE>) the rule matches false.
Regular expressions are always considered case-insensitive and extended POSIX regular expressions. Field names and options (NOT, EXACT) are all evaluated case-insensitive. If there is an error in a regular expression, the BrowseFilter line gets ignored.
Especially to note is that supplying any simple string consisting of only letters, numbers, spaces, and some basic special characters as a regular expression matches if it is contained somewhere in the data field.
If there is more than one BrowseFilter directive, ALL the directives need to be fulfilled for the remote printer to be accepted. If one is not fulfilled, the printer will get ignored.
Examples:
Rules for standard data items which are supplied with any remote printer advertised via DNS-SD:
Print queue name must contain "hum_res_", this matches "hum_res_mono" or "hum_res_color" but also "old_hum_res_mono":
BrowseFilter name hum_res_
This matches if the remote host name contains "printserver", like
"printserver.local", "printserver2.example.com", "newprintserver":
BrowseFilter host printserver
This matches all ports with 631 int its number, for example 631, 8631,
10631,...:
BrowseFilter port 631
This rule matches if the DNS-SD service name contains "@ printserver":
Browsefilter service @ printserver
Matches all domains with "local" in their names, not only "local" but
also things like "printlocally.com":
BrowseFilter domain local
Examples for rules applying to items of the TXT record:
This rule selects PostScript printers, as the "PDL" field in the TXT record contains "postscript" then. This includes also remote CUPS queues which accept PostScript, independent of whether the physical printer behind the CUPS queue accepts PostScript or not.
BrowseFilter pdl postscript
Color printers usually contain a "Color" entry set to "T" (for true)
in the TXT record. This rule selects them:
BrowseFilter color
This is a similar rule to select only duplex (automatic double-sided
printing) printers:
BrowseFilter duplex
Rules with the NOT option:
This rule EXCLUDES printers from all hosts containing "financial" in their names, nice to get rid of the 100s of printers of the financial department:
BrowseFilter NOT host financial
Get only monochrome printers ("Color" set to "F", meaning false, in
the TXT record):
BrowseFilter NOT color
Rules with more advanced use of regular expressions:
Only queue names which BEGIN WITH "hum_res_" are accepted now, so we still get "hum_res_mono" or "hum_res_color" but not "old_hum_res_mono" any more:
BrowseFilter name ^hum_res_
Server names is accepted if it contains "print_server" OR
"graphics_dep_server":
BrowseFilter host print_server|graphics_dep_server
"printserver1", "printserver2", and "printserver3", nothing else:
BrowseFilter host ^printserver[1-3]$
Printers understanding at least one of PostScript, PCL, or PDF:
BrowseFilter pdl postscript|pcl|pdf
Examples for the EXACT option:
Only printers from "printserver.local" are accepted:
BrowseFilter EXACT host printserver.local
Printers from all servers except "prinserver2.local" are accepted:
BrowseFilter NOT EXACT host prinserver2.local
The BrowsePoll directive polls a server for available printers once
every 60 seconds. Multiple BrowsePoll directives can be specified
to poll multiple servers. The default port to connect to is 631.
BrowsePoll works independently of whether CUPS browsing is activated
in BrowseRemoteProtocols.
BrowsePoll 192.168.7.20
BrowsePoll 192.168.7.65:631
BrowsePoll host.example.com:631
The BrowseLocalProtocols directive specifies the protocols to use
when advertising local shared printers on the network. The default
is "none". Control of advertising of local shared printers using
dnssd is done in /etc/cups/cupsd.conf.
BrowseLocalProtocols none
BrowseLocalProtocols CUPS
The BrowseRemoteProtocols directive specifies the protocols to use
when finding remote shared printers on the network. Multiple
protocols can be specified by separating them with spaces.
The default is "dnssd cups".
BrowseRemoteProtocols none
BrowseRemoteProtocols CUPS dnssd
BrowseRemoteProtocols CUPS
BrowseRemoteProtocols dnssd
BrowseRemoteProtocols ldap
The BrowseProtocols directive specifies the protocols to use when
finding remote shared printers on the network and advertising local
shared printers. "dnssd" and "ldap" are ignored for BrowseLocalProtocols.
Multiple protocols can be specified by separating them with spaces. The
default is "none" for BrowseLocalProtocols and "dnssd cups" for
BrowseRemoteProtocols.
BrowseProtocols none
BrowseProtocols CUPS dnssd
BrowseProtocols CUPS
BrowseProtocols dnssd
BrowseProtocols ldap
The configuration for the LDAP browsing mode define where the LDAP search
should be performed. If built with an LDAP library that supports TLS, the
path to the server's certificate, or to a certificates store, can be
specified.
The optional filter allows the LDAP search to be more specific, and is used
in addition to the hardcoded filter (objectclass=cupsPrinter).
BrowseLDAPBindDN cn=cups-browsed,dc=domain,dc=tld
BrowseLDAPCACertFile /path/to/server/certificate.pem
BrowseLDAPDN ou=printers,dc=domain,dc=tld
BrowseLDAPFilter (printerLocation=/Office 1/*)
BrowseLDAPPassword s3cret
BrowseLDAPServer ldaps://ldap.domain.tld
The DomainSocket directive specifies the domain socket through which
the locally running CUPS daemon is accessed. If not specified the
standard domain socket of CUPS is used. Use this if you have specified
an alternative domain socket for CUPS via a Listen directive in
/etc/cups/cupsd.conf. If cups-browsed is not able to access the local
CUPS daemon via a domain socket it accesses it via localhost. "None"
or "Off" lets cups-browsed not use CUPS' domain socket.
DomainSocket /var/run/cups/cups.sock
DomainSocket None
DomainSocket Off
Set HTTP timeout (in seconds) for requests sent to local/remote
resources Note that too short timeouts can make services getting
missed when they are present and operations be unnecessarily
repeated and too long timeouts can make operations take too long
when the server does not respond.
HttpLocalTimeout 5
HttpRemoteTimeout 10
Set how many retries (N) should cups-browsed do for creating print
queues for remote printers which receive timeouts during print queue
creation. The printers which are not successfully set up even after N
retries, are skipped until the next restart of the service. Note that
too many retries can cause high CPU load.
HttpMaxRetries 5
The interval between browsing/broadcasting cycles, local and/or
remote, can be adjusted with the BrowseInterval directive.
BrowseInterval 60
The BrowseTimeout directive determines the amount of time that
browsing-related operations are allowed to take in seconds.
Notably, adding or removing one printer queue is considered as one
operation. The timeout applies to each one of those operations.
Especially queues discovered by CUPS broadcasts will be removed after
this timeout if no further broadcast from the server happens.
BrowseTimeout 300
The AllowResharingRemoteCUPSPrinters directive determines whether a
print queue pointing to a remote CUPS queue will be re-shared to the
local network or not. Since the queues generated using the BrowsePoll
directive are also pointing to remote queues, they are also shared
automatically if the following option is set. Default is not to share
remote queues.
AllowResharingRemoteCUPSPrinters Yes
The NewBrowsePollQueuesShared directive determines whether a print
queue for a newly discovered printer (discovered by the BrowsePoll directive)
will be shared to the local network or not. This directive will only work
if AllowResharingRemoteCUPSPrinters is set to yes. Default is
not to share printers discovered using BrowsePoll.
NewBrowsePollQueuesShared Yes
Set OnlyUnsupportedByCUPS to "Yes" will make cups-browsed not create
local queues for remote printers for which CUPS creates queues by
itself. These printers are printers advertised via DNS-SD and doing
CUPS-supported (currently PWG Raster and Apple Raster) driverless
printing, including remote CUPS queues. Queues for other printers
(like for legacy PostScript/PCL printers) are always created
(depending on the other configuration settings of cups-browsed).
With OnlyUnsupportedByCUPS set to "No", cups-browsed creates queues for all printers which it supports, including printers for which CUPS would create queues by itself. Temporary queues created by CUPS will get overwritten. This way it is assured that any extra functionality of cups-browsed will apply to these queues. As queues created by cups-browsed are permanent CUPS queues this setting is also recommended if applications/print dialogs which do not support temporary CUPS queues are installed. This setting is the default.
OnlyUnsupportedByCUPS Yes
With UseCUPSGeneratedPPDs set to "Yes" cups-browsed creates queues
for IPP printers with PPDs generated by the PPD generator of CUPS
and not with the one of cups-browsed. So any new development in
CUPS' PPD generator gets available. As CUPS' PPD generator is not
directly accessible, we need to make CUPS generate a temporary print
queue with the desired PPD. Therefore we can only use these PPDs
when our queue replaces a temporary CUPS queue, meaning that the
queue is for a printer on which CUPS supports driverless printing
(IPP 2.x, PDLs: PDF, PWG Raster, and/or Apple Raster) and that its
name is the same as CUPS uses for the temporary queue
("LocalQueueNamingIPPPrinter DNS-SD" must be set). The directive
applies only to IPP printers, not to remote CUPS queues, to not
break clustering. Setting this directive to "No" lets cups-browsed
generate the PPD file. Default setting is "No".
UseCUPSGeneratedPPDs No
With the directives LocalQueueNamingRemoteCUPS and
LocalQueueNamingIPPPrinter you can determine how the names for local
queues generated by cups-browsed are generated, separately for remote
CUPS printers and IPP printers.
"DNS-SD" (the default in both cases) bases the naming on the service name of the printer's advertised DNS-SD record. This is exactly the same naming scheme as CUPS uses for its temporary queues, so the local queue from cups-browsed prevents CUPS from listing and creating an additional queue. As DNS-SD service names have to be unique, queue names of printers from different servers will also be unique and so there is no automatic clustering for load-balanced printing.
"MakeModel" bases the queue name on the printer's manufacturer and model names. This scheme cups-browsed used formerly for IPP printers.
"RemoteName" is only available for remote CUPS queues and uses the name of the queue on the remote CUPS server as the local queue's name. This makes printers on different CUPS servers with equal queue names automatically forming a load-balancing cluster as CUPS did formerly (CUPS 1.5.x and older) with CUPS-broadcasted remote printers. This scheme cups-browsed used formerly for remote CUPS printers.
LocalQueueNamingRemoteCUPS DNS-SD
LocalQueueNamingRemoteCUPS MakeModel
LocalQueueNamingRemoteCUPS RemoteName
LocalQueueNamingIPPPrinter DNS-SD
LocalQueueNamingIPPPrinter MakeModel
Set DNSSDBasedDeviceURIs to "Yes" if cups-browsed should use
DNS-SD-service-name-based device URIs for its local queues, as CUPS
also does. These queues use the DNS-SD service name of the
discovered printer. With this the URI is independent of network
interfaces and ports, giving reliable connections to always the same
physical device. This setting is the default.
Set DNSSDBasedDeviceURIs to "No" if cups-browsed should use the conventional host-name/IP-based URIs.
Note that this option has only influence on URIs for printers discovered via DNS-SD, not via legacy CUPS broewsing or LDAP. Those printers get always assigned the conventional URIs.
DNSSDBasedDeviceURIs Yes
Set IPBasedDeviceURIs to "Yes" if cups-browsed should create its local
queues with device URIs with the IP addresses instead of the host
names of the remote servers. This mode is there for any problems with
host name resolution in the network, especially also if avahi-daemon
is only run for printer discovery and already stopped while still
printing. By default this mode is turned off, meaning that we use URIs
with host names.
Note that the IP addresses depend on the network interface through which the printer is accessed. So do not use IP-based URIs on systems with many network interfaces and where interfaces can appear and disappear frequently.
This mode could also be useful for development and debugging.
If you prefer IPv4 or IPv6 IP addresses in the URIs, you can set IPBasedDeviceURIs to "IPv4" to only get IPv4 IP addresses or IPBasedDeviceURIs to "IPv6" to only get IPv6 IP addresses.
IPBasedDeviceURIs No
IPBasedDeviceURIs Yes
IPBasedDeviceURIs IPv4
IPBasedDeviceURIs IPv6
Set CreateRemoteRawPrinterQueues to "Yes" to let cups-browsed also
create local queues pointing to remote raw CUPS queues. Normally,
only queues pointing to remote queues with PPD/driver are created
as we do not use drivers on the client side, but in some cases
accessing a remote raw queue can make sense, for example if the
queue forwards the jobs by a special backend like Tea4CUPS.
CreateRemoteRawPrinterQueues Yes
cups-browsed by default creates local print queues for each shared
CUPS print queue which it discovers on remote machines in the local
network(s). Set CreateRemoteCUPSPrinterQueues to "No" if you do not
want cups-browsed to do this. For example you can set cups-browsed
to only create queues for IPP network printers setting
CreateIPPPrinterQueues not to "No" and CreateRemoteCUPSPrinterQueues
to "No".
CreateRemoteCUPSPrinterQueues No
Set CreateIPPPrinterQueues to "All" to let cups-browsed discover IPP
network printers (native printers, not CUPS queues) with known page
description languages (PWG Raster, PDF, PostScript, PCL XL, PCL
5c/e) in the local network and auto-create print queues for them.
Set CreateIPPPrinterQueues to "Everywhere" to let cups-browsed discover IPP Everywhere printers in the local network (native printers, not CUPS queues) and auto-create print queues for them.
Set CreateIPPPrinterQueues to "AppleRaster" to let cups-browsed discover Apple Raster printers in the local network (native printers, not CUPS queues) and auto-create print queues for them.
Set CreateIPPPrinterQueues to "Driverless" to let cups-browsed discover printers designed for driverless use (currently IPP Everywhere and Apple Raster) in the local network (native printers, not CUPS queues) and auto-create print queues for them.
Set CreateIPPPrinterQueues to "LocalOnly" to auto-create print queues only for local printers made available as IPP printers. These are for example IPP-over-USB printers, made available via ippusbxd(8). This is the default.
Set CreateIPPPrinterQueues to "No" to not auto-create print queues for IPP network printers.
If queues with PPD file are created (see IPPPrinterQueueType directive below) the PPDs are auto-generated by cups-browsed based on properties of the printer polled via IPP. In case of missing information, info from the Bonjour record is used asd as last mean default values.
If queues without PPD (see IPPPrinterQueueType directive below) are created clients have to IPP-poll the capabilities of the printer and send option settings as standard IPP attributes. Then we do not poll the capabilities by ourselves to not wake up the printer from power-saving mode when creating the queues. Jobs have to be sent in one of PDF, PWG Raster, or JPEG format. Other formats are not accepted.
This functionality is primarily for mobile devices running CUPS to not need a printer setup tool nor a collection of printer drivers and PPDs.
CreateIPPPrinterQueues No
CreateIPPPrinterQueues LocalOnly
CreateIPPPrinterQueues Everywhere
CreateIPPPrinterQueues AppleRaster
CreateIPPPrinterQueues Everywhere AppleRaster
CreateIPPPrinterQueues Driverless
CreateIPPPrinterQueues All
If cups-browsed is automatically creating print queues for native
IPP network printers ("CreateIPPPrinterQueues Yes"), the type of
queue to be created can be selected by the "IPPPrinterQueueType"
directive. The "PPD" (default) setting makes queues with PPD file
being created. With "Interface" or "NoPPD" the queue is created with
a System V interface script (Not supported with CUPS 2.2.x or
later). "Auto" is for backward compatibility and also lets queues
with PPD get created.
IPPPrinterQueueType PPD
IPPPrinterQueueType NoPPD
IPPPrinterQueueType Interface
IPPPrinterQueueType Auto
The NewIPPPrinterQueuesShared directive determines whether a print
queue for a newly discovered IPP network printer (not remote CUPS
queue) will be shared to the local network or not. This is only
valid for newly discovered printers. For printers discovered in an
earlier cups-browsed session, cups-browsed will remember whether the
printer was shared, so changes by the user get conserved. Default is
not to share newly discovered IPP printers.
NewIPPPrinterQueuesShared Yes
How to handle the print queues cups-browsed creates when cups-browsed
is shut down:
"KeepGeneratedQueuesOnShutdown No" makes the queues being removed. This makes sense as these queues only work while cups-browsed is running. cups-browsed has to determine to which member printer of a cluster to pass on the job.
"KeepGeneratedQueuesOnShutdown Yes" (the default) makes the queues not being removed. This is the recommended setting for a system where cups-browsed is permanently running and only stopped for short times (like log rotation) or on shutdown. This avoids the re-creation of the queues when cups-browsed is restarted, which often causes a clutter of CUPS notifications on the desktop.
KeepGeneratedQueuesOnShutdown No
If there is more than one remote CUPS printer whose local queue
would get the same name and AutoClustering is set to "Yes" (the
default) only one local queue is created which makes up a
load-balancing cluster of the remote printers which would get this
queue name (implicit class). This means that when several jobs are
sent to this queue they get distributed between the printers, using
the method chosen by the LoadBalancing directive.
Note that the forming of clusters depends on the naming scheme for local queues created by cups-browsed. If you have set LocalQueueNamingRemoteCUPS to "DNSSD" you will not get automatic clustering as the DNS-SD service names are always unique. With LocalQueueNamingRemoteCUPS set to "RemoteName" local queues are named as the CUPS queues on the remote servers are named and so equally named queues on different servers get clustered (this is how CUPS did it in version 1.5.x or older). LocalQueueNamingRemoteCUPS set to "MakeModel" makes remote printers of the same model get clustered. Note that then a cluster can contain more than one queue of the same server.
With AutoClustering set to "No", for each remote CUPS printer an individual local queue is created, and to avoid name clashes when using the LocalQueueNamingRemoteCUPS settings "RemoteName" or "MakeModel" "@<server name>" is added to the local queue name.
Only remote CUPS printers get clustered, not IPP network printers or IPP-over-USB printers.
AutoClustering Yes
AutoClustering No
Load-balancing printer cluster formation can also be manually
controlled by defining explicitly which remote CUPS printers should
get clustered together.
This is done by the "Cluster" directive:
Cluster <QUEUENAME>: <EXPRESSION1> <EXPRESSION2> ...
Cluster <QUEUENAME>
If no expressions are given, <QUEUENAME> is used as the first and
only expression for this cluster.
Discovered printers are matched against all the expressions of all defined clusters. The first expression which matches the discovered printer determines to which cluster it belongs. Note that this way a printer can only belong to one cluster. Once matched, further cluster definitions will not checked any more.
With the first printer matching a cluster's expression a local queue with the name <QUEUENAME> is created. If more printers are discovered and match this cluster, they join the cluster. Printing to this queue prints to all these printers in a load-balancing manner, according to to the setting of the LoadBalancing directive.
Each expression must be a string of characters without spaces. If spaces are needed, replace them by underscores ('_').
An expression can be matched in three ways:
1. By the name of the CUPS queue on the remote server
2. By make and model name of the remote printer
3. By the DNS-SD service name of the remote printer
Note that the matching is done case-insensitively and any group of
non-alphanumerical characters is replaced by a single underscore.
So if an expression is "HP_DeskJet_2540" and the remote server reports "hp Deskjet-2540" the printer gets matched to this cluster.
If "AutoClustering" is not set to "No" both your manual cluster definitions will be followed and automatic clustering of equally-named remote queues will be performed. If a printer matches in both categories the match to the manually defined cluster has priority. Automatic clustering of equally-named remote printers is not performed if there is a manually defined cluster with this name (at least as the printers do not match this cluster).
Examples:
To cluster all remote CUPS queues named "laserprinter" in your local network but not cluster any other equally-named remote CUPS printers use (Local queue will get named "laserprinter"):
AutoClustering No
Cluster laserprinter
To cluster all remote CUPS queues of HP LaserJet 4050 printers in a
local queue named "LJ4050":
Cluster LJ4050: HP_LaserJet_4050
As DNS-SD service names are unique in a network you can create a
cluster from exactly specified printers (spaces replaced by
underscores):
Cluster hrdep: oldlaser_@_hr-server1 newlaser_@_hr-server2
The LoadBalancing directive switches between two methods of handling
load balancing between equally-named remote queues which are
represented by one local print queue making up a cluster of them
(implicit class).
The two methods are:
Queuing of jobs on the client (LoadBalancing QueueOnClient):
Here we queue up the jobs on the client and regularly check the clustered remote print queues. If we find an idle queue, we pass on a job to it.
This is also the method which CUPS uses for classes. Advantage is a more even distribution of the job workload on the servers (especially if the printing speed of the servers is very different), and if a server fails, there are not several jobs stuck or lost. Disadvantage is that if one takes the client (laptop, mobile phone, ...) out of the local network, printing stops with the jobs waiting in the local queue.
Queuing of jobs on the servers (LoadBalancing QueueOnServers):
Here we check the number of jobs on each of the clustered remote printers and send an incoming job immediately to the remote printer with the lowest amount of jobs in its queue. This way no jobs queue up locally, all jobs which are waiting are waiting on one of the remote servers.
Not having jobs waiting locally has the advantage that we can take the local machine from the network and all jobs get printed. Disadvantage is that if a server with a full queue of jobs goes away, the jobs go away, too.
Default is queuing the jobs on the client as this is what CUPS does with classes.
LoadBalancing QueueOnClient
LoadBalancing QueueOnServers
With the DefaultOptions directive one or more option settings can be
defined to be applied to every print queue newly created by
cups-browsed. Each option is supplied as one supplies options with the
"-o" command line argument to the "lpadmin" command (Run "man lpadmin"
for more details). More than one option can be supplied separating the
options by spaces. By default no option settings are pre-defined.
Note that print queues which cups-browsed already created before remember their previous settings and so these settings do not get applied.
DefaultOptions Option1=Value1 Option2=Value2 Option3 noOption4
The AutoShutdown directive specifies whether cups-browsed should
automatically terminate when it has no local raw queues set up
pointing to any discovered remote printers or no jobs on such queues
depending on AutoShutdownOn setting (auto shutdown
mode). Setting it to "On" activates the auto-shutdown mode, setting it
to "Off" deactivates it (the default). The special mode "avahi" turns
auto shutdown off while avahi-daemon is running and on when
avahi-daemon stops. This allows running cups-browsed on-demand when
avahi-daemon is run on-demand.
AutoShutdown Off
AutoShutdown On
AutoShutdown avahi
The AutoShutdownOn directive determines what event cups-browsed
considers as inactivity in auto shutdown mode. "NoQueues" (the
default) means that auto shutdown is initiated when there are no
queues for discovered remote printers generated by cups-browsed any
more. "NoJobs" means that all queues generated by cups-browsed are
without jobs.
AutoShutdownOn NoQueues
AutoShutdownOn NoJobs
DebugLogFileSize defines the maximum size possible (in KBytes)
of the log files (cups-browsed_log and cups-browsed_previous_logs)
that is created using cups-browsed in the debugging mode.
Setting its value to 0 would turn off any restriction
on the size of the file.
DebugLogFileSize 300
The AutoShutdownTimeout directive specifies after how many seconds
without local raw queues set up pointing to any discovered remote
printers or jobs on these queues cups-browsed should actually shut
down in auto shutdown mode. Default is 30 seconds, 0 means immediate
shutdown.
AutoShutdownTimeout 20
cups-browsed(8)
/usr/share/doc/cups-browsed/README.gz
This manual page was written for the Debian Project, but it may be used by others.