D-Bus is a message bus system, a simple way for applications to talk to one another.
D-Bus supplies both a system daemon (for events such as "new hardware device added" or "printer queue changed") and a per-user-login-session daemon (for general IPC needs among user applications). Also, the message bus is built on top of a general one-to-one message passing framework, which can be used by any two apps to communicate directly (without going through the message bus daemon). Currently the communicating applications are on one computer, but TCP/IP option is available and remote support planned.
You will need to create the 'messagebus' user and group before installing the dbus package; sample lines to do so are below:
/usr/sbin/groupadd -g 81 messagebus /usr/sbin/useradd -c 'System Message Bus' -g messagebus -u 81 -d '/' -s /bin/false messagebus
Note that the numerical uid and gid given in the above sample lines may need to change on your system; if you already have an existing user and/or group with those id's, then they obviously need to be modified for your system. Because the 'messagebus' user and group are considered system accounts, the custom is to make their uid's and gid's less than 100, but that's entirely up to you.
After creating the 'messagebus' user and group, you will need to make sure the /etc/rc.d/rc.messagebus script is run at boot. The easiest way to do this is adding something like the following line to /etc/rc.d/rc.local:
if [ -x /etc/rc.d/rc.messagebus ]; then
/etc/rc.d/rc.messagebus start
fi
Name Last modified Size Description
Parent Directory -
dbus-1.0.2.tar.gz 2006-12-15 02:46 1.3M
dbus.SlackBuild 2006-12-15 02:49 3.3K
doinst.sh 2006-11-15 03:08 756