Provided by: inadyn_1.99.4-1_i386 bug


     inadyn — a small DDNS client to maintain your presence on the Internet


     inadyn [-a, --alias ALIAS[,HASH]] [-b, --background] [-B, --bind IFNAME]
            [-d, --drop-privs USER[:GROUP]] [-e, --exec SCRIPT]
            [-f, --forced-update SEC] [-F, --config FILE] [-L, --logfile FILE]
            [-P, --pidfile FILE] [-c, --cachefile FILE] [-s, --syslog]
            [-h, --help] [-i, --iface IFNAME] [-n, --iterations NUM]
            [-H, --checkip-url SERVER[:PORT] URL]
            [-N, --server-name SERVER[:PORT]] [-U, --server-url PATH]
            [-S, --system PROVIDER] [-t, --test] [-T, --period SEC]
            [-u, --username USERNAME] [-p, --password PASSWORD]
            [-v, --version] [-V, --verbose LEVEL] [-w, --wildcard]
            [-x, --proxy-server SERVER[:PORT]]


     inadyn is a client for “open” name servers, also known as DDNS service
     providers.  That is, it lets you have a public Internet name for your
     DHCP/PPPoE assigned system.  Some of these services are free of charge
     for non-commercial use, others take a small fee, but also provide more
     domains to choose from.

     Common DDNS service providers supported by inadyn:

     The basic operation of inadyn is to periodically check whether the actual
     Internet accessible IP of your system is the same one that is recorded in
     the name server, and update the name server records when there is a


     -h, --help
             Print a summary of the options and exit.

     -u, --username USERNAME
             The username, if applicable. This might be referred to as hash.

     -p, --password PASSWORD
             The password, if applicable.

     -a, --alias ALIAS
             A host name alias. This option can appear multiple times, for
             each domain that has the same IP.

     -F, --config FILE
             The file name that contains inadyn command options exactly as
             specified in the command line syntax (adds to those already
             present on the cmd line). The default configuration file name,
             /etc/inadyn.conf, is looked at automatically if inadyn is called
             without any command line options. The format is as expected for a
             UNIX config file; the hash character is used to comment entire
             lines.  Spaces are ingored.  The long options may be specified
             without -- if placed at the beginning of the line.

     -H, --checkip-url SERVER[:PORT] URL
             The client IP is detected by calling URL from this SERVER[:PORT].
             Defaults to

     -N, --server-name SERVER[:PORT]
             The server that receives the update DNS requests.  When no proxy
             is specified it is sufficient to set the --system option so that
             the default servers will be taken. The option is useful for
             generic DynDNS services that support HTTP update.

     -U, --server-url PATH
             The update path on the DynDNS server.

     -S, --system email@ddns-service.tld
             DNS service to connect to.  Defaults to

     -x, --proxy-server SERVER[:PORT]
             HTTP proxy server name and port.  Default: N/A.

     -T, --period SEC
             How often the IP is checked, in seconds. Default: apx 1 minute.
             Max: 10 days.

     -f, --forced-update SEC
             How often the IP should be updated even if it is not changed. The
             time should be given in seconds.

     --L, --logfile FILE
             The name, including the full path, of a log file.  See also the
             ---syslog option, below.

     -b, --background
             Run in background. Output is sent to the UNIX syslog facilities
             or to a log file, if one was specified.

     -V, --verbose LEVEL
             Set the debug level, which is an integer between 0 to 5.

     -n, --iterations NUM
             Set the number of DNS updates. The default is 0, which means

     -s, --syslog
             Use the system syslog(3) mechanism for log messages, warnings and
             error conditions.

     -d, --drop-privs USER[:GROUP]
             Drop privileges after initial setup to the given user and group.

     -B, --bind IFNAME
             Set interface to bind to. Only on UNIX systems.

     -i, --iface IFNAME
             Set interface to check for IP. Only on UNIX systems.  External IP
             check is not performed.

     -P, --pidfile FILE
             Set pidfile, defaults to /var/run/inadyn/

     -c, --cachefile FILE
             Set cachefile, defaults to /var/run/inadyn/inadyn.cache.

     -e, --exec SCRIPT
             Full path to external command, or script, to run after a
             successful DDNS update.  SCRIPT can use following environment
             variables: INADYN_IP, INADYN_HOSTNAME. First environment variable
             contains new IP address, second one - host name alias.
             INADYN_IFACE is available, if --iface option used.

     -w, --wildcard
             Enable domain name wildcarding for Default disabled.
             For inadyn < 1.96.3 wildcarding was enabled by default.

     -t, --test
             Force one update and quit.

     inadyn -u username -p password -a

     inadyn --username username --password password --period 60 --alias --alias my.second.domain

     inadyn --background -u test -p test --period 60 --alias
     --alias my.second.domain --logfile inadyn_srv.log
     inadyn --system -u username -p password -a

     inadyn -u username -p password --period 60 --alias -a
     my.second.domain --system

     The “hash” is automatically retrieved by inadyn using freedns API.


     inadyn prints a message when the IP is updated. If no update is needed
     then by default it prints a single “.” character, unless --verbose is set
     to 0.  Therefore, unless --verbose is set to 0, the log file will
     contains lot of dots. When the connection goes down it could be that
     inadyn will print some error messages. Those are harmless and should be
     followed by “OK” messages after the connection is back up.


     inadyn responds to the following signals:

     HUP   Restarts inadyn.  The configuration file is reread every time this
           signal is evoked. It is also useful when a new DHCP/PPPoE lease or
           new gateway is received. Please note that inadyn does not track
           such events by itself. You need an external monitor for that.
     TERM  Terminates inadyn gracefully.
     INT   The same as TERM.
     QUIT  The same as TERM.

     For convenience in sending signals, inadyn writes its process ID to
     /var/run/inadyn/ upon startup.




     The inadyn home page is


     inadyn was written by Narcis Ilisei ⟨⟩, Steve
     Horbachuk and later Joachim Nilsson ⟨⟩.

     This manual page was initially written for the Debian GNU/Linux system by
     Shaul Karl ⟨⟩.  Later Joachim Nilsson picked up