dhid(8) [debian man page]
DHID(8) BSD System Manager's Manual DHID(8) NAME
dhid -- Dynamic Host Information System client. SYNOPSIS
dhid [-h] [-p port] [-P pidfile] [-f conffile] DESCRIPTION
dhid is the DHIS client daemon. After setting up with a DHIS provider, each machine may run a dhid daemon (in background) in order to update its dynamic IP address within the server. /etc/dhid.conf should be configured according to the provider's assigned parameters. Once running, dhid sends echo request packets to the server and expects a reply. Once received, dhid tries to authenticate at the server either in secure on insecure mode. From then on, and providing authentication was successful, the client waits and replies to queries origi- nated at the server. If the server doesn't receive acknowledgments of these packets the host is marked offline. Likewise, if the client doesn't receive queries for a period of time the offline stage is restored. Therefore, the only thing a DHIS host needs is to run the dhid client. The server is able to determine when the host is online and the server tables are updated automatically. OPTIONS
-h Show usage information. -p port Specify port to listen on. If not specified, the default is port 58800. -P pidfile Use an alternative PID file instead of /var/run/dhisd.pid. -l conffile Use an alternative configuration file instead of /etc/dhid.conf. FILES
/etc/dhid.conf DHIS client configuration. AUTHOR
dhid has been written by Joao Cabral <jcnc@dhis.org>. This manual page was written by Guus Sliepen <guus@debian.org> for the Debian GNU/Linux system. Debian GNU/Linux June 1, 2019 Debian GNU/Linux
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DHISD(8) BSD System Manager's Manual DHISD(8) NAME
dhisd -- Dynamic Host Information System server. SYNOPSIS
dhisd [-D] [-p port] [-d database] [-s services] [-l logfile] [-P pidfile] DESCRIPTION
DHIS is a client-server architecture meant to update databases for systems which are assigned a dynamic IP[v4] address. By the means of a DHIS client a host which is assigned a dynamic IP address (either from its ISP or from DHCP) is able to communicate with a DHIS server in order to advertise its newly acquired IP address. DHIS comprises a UDP based protocol to achieve this purpose. A DHIS client has a unique identification number and a set of authentication keys, runs in background, and attempts to reach its server. The DHIS server (permanently online) listens to UDP messages from its clients and authenticates these against its knowledge of keys. When authentication is successful the DHIS server updates one or more databases with the newly received IP address for the given client. The server then keeps sending, every period of time, check requests to each of its connected clients. These need to be acknowledged. If not the server will consider, on an individual basis, that the client has disconnected and will again update the databases to an offline state. Alternativelly the server may receive an OFFLINE_REQ packet from the client, in which case the DNS record is updated at once and the online state droped. OPTIONS
-D Increase debug level. -p port Specify port to listen on. If not specified, the default is port 58800. -d database Use an alternative database file instead of /etc/dhis-server/dhis.db. -s services Use an alternative database file instead of /etc/dhis-server/services.db. -l logfile Use an alternative log file instead of /var/log/dhisd.log. -P pidfile Use an alternative PID file instead of /var/run/dhisd.pid. FILES
/etc/dhis-server/dhis.db DHIS client database. Contains the credentials of clients. /etc/dhis-server/services.db DHIS service database. Contains a list of services and the location of the corresponding DHIS engine plugins. SEE ALSO
dhis-genkeys(8) AUTHOR
dhisd has been written by Joao Cabral <jcnc@dhis.org>. This manual page was written by Guus Sliepen <guus@debian.org> for the Debian GNU/Linux system. Debian GNU/Linux June 1, 2019 Debian GNU/Linux