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avahi-daemon.conf(5)      FreeBSD File Formats Manual     avahi-daemon.conf(5)

NAME
       avahi-daemon.conf - avahi-daemon configuration file

SYNOPSIS
       /home/lennart/tmp/avahi/usr/local/etc/avahi/avahi-daemon.conf

DESCRIPTION
       avahi-daemon.conf is the configuration file for avahi-daemon.

SECTION [SERVER]
       host-name= Set the host name avahi-daemon tries to register on the LAN.
       If omited defaults to the system host name as set with the
       sethostname() system call.

       domain-name= Set the default domain name avahi-daemon tries to register
       its host name and services on the LAN in. If omitted defaults to
       ".local".

       browse-domains= Set a comma separated list of browsing domains (in
       addition to the default one and those announced inside the default
       browsing domain). Please note that the user may specify additional
       browsing domains on the client side, either by setting
       $AVAHI_BROWSE_DOMAINS to a list of colon separated domains or by adding
       them to the XDG config file ~/.config/avahi/browse-domains (separated
       by newlines).

       use-ipv4= Takes a boolean value ("yes" or "no"). If set to "no" avahi-
       daemon will not use IPv4 sockets. Default is "yes".

       use-ipv6= Takes a boolean value ("yes" or "no"). If set to "no" avahi-
       daemon will not use IPv6 sockets. Default is "yes".

       allow-interfaces= Set a comma separated list of allowed network
       interfaces that should be used by the avahi-daemon. Traffic on other
       interfaces will be ignored. If set to an empty list all local
       interfaces except loopback and point-to-point will be used.

       deny-interfaces= Set a comma separated list of network interfaces that
       should be ignored by avahi-daemon. Other not specified interfaces will
       be used, unless allow-interfaces= is set. This option takes precedence
       over allow-interfaces=.

       check-response-ttl= Takes a boolean value ("yes" or "no"). If set to
       "yes", an additional security check is activated: incoming IP packets
       will be ignored unless the IP TTL is 255. Earlier mDNS specifications
       required this check. Since this feature may be incompatible with newer
       implementations of mDNS it defaults to "no". On the other hand it
       provides extra security.

       use-iff-running= Takes a boolean value ("yes" or "no"). If set to "yes"
       avahi-daemon monitors the IFF_RUNNING flag bit which is used by some
       (modern) network drivers to tell user space if a network cable is
       plugged in (in case of copper ethernet), or the network card is
       associated with some kind of network (in case of WLAN). If IFF_RUNNING
       is set avahi-daemon will automatically announce its services on that
       network. Unfortunately far too many network drivers do not support this
       flag or support it in a broken way. Therefore this option defaults to
       "no".

       enable-dbus= Takes either "yes", "no" or "warn". If set to "yes" avahi-
       daemon connects to D-Bus, offering an object oriented client API. It is
       only available if Avahi has been compiled with --enable-dbus in which
       case it defaults to "yes". "warn" behaves like "yes", but the daemon
       starts up even when it fails to connect to a D-Bus daemon. In addition,
       if the connection to the D-Bus daemon is terminated we try to
       reconnect. (Unless we are in a chroot() environment where this
       definitely will fail.)

       disallow-other-stacks= Takes a boolean value ("yes" or "no"). If set to
       "yes" no other process is allowed to bind to UDP port 5353. This
       effectively impedes other mDNS stacks from running on the host. Use
       this as a security measure to make sure that only Avahi is responsible
       for mDNS traffic. Please note that we do not recommend running multiple
       mDNS stacks on the same host simultaneously. This hampers reliability
       and is a waste of resources. However, to not annoy people this option
       defaults to "no".

       allow-point-to-point= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will make use of interfaces with the POINTOPOINT
       flag set. This option defaults to "no" as it might make mDNS unreliable
       due to usually large latencies with such links and opens a potential
       security hole by allowing mDNS access from Internet connections. Use
       with care and YMMV!

       cache-entries-max= Takes an unsigned integer specifying how many
       resource records are cached per interface. Bigger values allow mDNS
       work correctly in large LANs but also increase memory consumption.

       clients-max= Takes an unsigned integer. The maximum number of
       concurrent D-Bus clients allowed. If the maximum number is reached
       further clients will be refused until at least one existing client
       disconnects.

       objects-per-client-max= Takes an unsigned integer. The maximum number
       of objects (entry groups, browsers, resolvers) that may be registered
       per D-Bus client at a time. If the maximum number is reached further
       object creation will be refused until at least one object is freed.

       entries-per-entry-group-max= Takes an unsigned integer. The maximum
       number of entries (resource records) per entry group registered by a D-
       Bus client at a time. If the maximum number is reached further resource
       records may not be added to an entry group.

       ratelimit-interval-usec= Takes an unsigned integer. Sets the per-
       interface packet rate-limiting interval parameter. Together with
       ratelimit-burst= this may be used to control the maximum number of
       packets Avahi will generated in a specific period of time on an
       interface.

       ratelimit-burst= Takes an unsigned integer. Sets the per-interface
       packet rate-limiting burst parameter. Together with ratelimit-interval-
       usec= this may be used to control the maximum number of packets Avahi
       will generated in a specific period of time on an interface.

SECTION [WIDE-AREA]
       enable-wide-area= Takes a boolean value ("yes" or "no"). Enable wide-
       area DNS-SD, aka DNS-SD over unicast DNS. If this is enabled only
       domains ending in .local will be resolved on mDNS, all other domains
       are resolved via unicast DNS. If you want to maintain multiple
       different multicast DNS domains even with this option enabled we
       encourage you to use subdomains of .local, such as "kitchen.local".
       This option defaults to "yes".

SECTION [PUBLISH]
       disable-publishing= Takes a boolean value ("yes" or "no"). If set to
       "yes", no record will be published by Avahi, not even address records
       for the local host. Avahi will be started in a querying-only mode. Use
       this is a security measure. This option defaults to "no"

       disable-user-service-publishing= Takes a boolean value ("yes" or "no").
       If set to "yes", Avahi will still publish address records and suchlike
       but will not allow user applications to publish services. Use this is a
       security measure. This option defaults to "no"

       add-service-cookie= Takes a boolean value ("yes" or "no"). If set to
       "yes" an implicit TXT entry will be added to all locally registered
       services, containing a cookie value which is chosen randomly on daemon
       startup. This can be used to detect if two services on two different
       interfaces/protocols are actually identical. Defaults to "no".

       publish-addresses= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will register mDNS address records for all local IP
       addresses. Unless you want to use avahi-daemon exclusively for browsing
       it's recommended to enable this. If you plan to register local services
       you need to enable this option. Defaults to "yes".

       publish-hinfo= Takes a boolean value ("yes" or "no"). If set to "yes"
       avahi-daemon will register an mDNS HINFO record on all interfaces which
       contains information about the local operating system and CPU, which
       might be useful for administrative purposes. This is recommended by the
       mDNS specification but not required. For the sake of privacy you might
       choose to disable this feature. Defaults to "yes."

       publish-workstation= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will register a service of type "_workstation._tcp"
       on the local LAN. This might be useful for administrative purposes
       (i.e. browse for all PCs on the LAN), but is not required or
       recommended by any specification. Newer MacOS X releases register a
       service of this type. Defaults to "yes".

       publish-domain= Takes a boolean value ("yes" or "no"). If set to "yes"
       avahi-daemon will announce the locally used domain name (see above) for
       browsing by other hosts. Defaults to "yes".

       publish-dns-servers= Takes a comma separated list of IP addresses for
       unicast DNS servers. You can use this to announce unicast DNS servers
       via mDNS. When used in conjunction with avahi-dnsconfd on the client
       side this allows DHCP-like configuration of unicast DNS servers.

       publish-resolv-conf-dns-servers= Takes a boolean value ("yes" or "no").
       If set to "yes" avahi-daemon will publish the unicast DNS servers
       specified in /usr/local/etc/resolv.conf in addition to those specified
       with publish-dns-servers. Send avahi-daemon a SIGHUP to have it reload
       this file. Defaults to "no".

       publish-aaaa-on-ipv4= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will publish an IPv6 AAAA record via IPv4, i.e. the
       local IPv6 addresses can be resolved using an IPv4 transport. Only
       useful when IPv4 is enabled with use-ipv4=true. Defaults to "yes".

       publish-a-on-ipv6= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will publish an IPv4 A record via IPv6, i.e. the
       local IPv4 addresses can be resolved using an IPv6 transport. Only
       useful when IPv6 is enabled with use-ipv6=true. Defaults to "no".

SECTION [REFLECTOR]
       enable-reflector= Takes a boolean value ("yes" or "no"). If set to
       "yes" avahi-daemon will reflect incoming mDNS requests to all local
       network interfaces, effectively allowing clients to browse mDNS/DNS-SD
       services on all networks connected to the gateway. The gateway is
       somewhat intelligent and should work with all kinds of mDNS traffic,
       though some functionality is lost (specifically the unicast reply bit,
       which is used rarely anyway). Make sure to not run multiple reflectors
       between the same networks, this might cause them to play Ping Pong with
       mDNS packets. Defaults to "no".

       reflect-ipv= Takes a boolean value ("yes" or "no"). If set to "yes" and
       enable-reflector is enabled, avahi-daemon will forward mDNS traffic
       between IPv4 and IPv6, which is usually not recommended. Defaults to
       "no".

SECTION [RLIMITS]
       This section is used to define system resource limits for the daemon.
       See setrlimit(2) for more information. If any of the options is not
       specified in the configuration file, avahi-daemon does not change it
       from the system defaults.

       rlimit-as= Value in bytes for RLIMIT_AS (maximum size of the process's
       virtual memory). Sensible values are heavily system dependent.

       rlimit-core= Value in bytes for RLIMIT_CORE (maximum core file size).
       Unless you want to debug avahi-daemon, it is safe to set this to 0.

       rlimit-data= Value in bytes for RLIMIT_DATA (maximum size of the
       process's data segment). Sensible values are heavily system dependent.

       rlimit-fsize= Value for RLIMIT_FSIZE (maximum size of files the process
       may create). Since avahi-daemon shouldn't write any files to disk, it
       is safe to set this to 0.

       rlimit-nofile= Value for RLIMIT_NOFILE (open file descriptors). avahi-
       daemon shouldn't need more than 15 to 20 open file descriptors
       concurrently.

       rlimit-stack= Value in bytes for RLIMIT_STACK (maximum size of the
       process stack). Sensible values are heavily system dependent.

       rlimit-nproc= Value for RLIMIT_NPROC (number of process of user).
       avahi-daemon forks of a helper process on systems where chroot(2) is
       available. Therefore this value should not be set below 2.

AUTHORS
       The Avahi Developers <avahi (at) lists (dot) freedesktop (dot) org>;
       Avahi is available from http://avahi.org/

SEE ALSO
       avahi-daemon(8), avahi-dnsconfd(8)

COMMENTS
       This man page was written using xml2man(1) by Oliver Kurth.

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