1 For example: service httpd restart This will issue a restart command to Apache.  The second would be to directly interact with the init script on the server. An example of this would be, /etc/init.d/httpd restart This will issue a restart command to Apache.
Definition[edit] Masonry is the craft of shaping rough pieces of rock into accurate geometrical shapes, at times simple, but some of considerable complexity, and then arranging the resulting stones, often together with mortar, to form structures.
a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis: Bricks and mortar are elements of every masonry wall. 2. Chemistry. one of a class of substances that cannot be separated into simpler substances by chemical means.