systemitem — A system-related item or term.



Common attributes and common linking attributes.

Additional attributes:

  • class (enumeration)
    • “daemon”
    • “domainname”
    • “etheraddress”
    • “event”
    • “eventhandler”
    • “filesystem”
    • “fqdomainname”
    • “groupname”
    • “ipaddress”
    • “library”
    • “macro”
    • “netmask”
    • “newsgroup”
    • “osname”
    • “process”
    • “protocol”
    • “resource”
    • “server”
    • “service”
    • “systemname”
    • “username”


A systemitem identifies any system-related item or term. The class attribute defines a number of common system-related terms.

Many inline elements in DocBook are, in fact, system related. Some of the objects identified by the class attribute on systemitem may eventually migrate out to become separate inline elements, and some inline elements may migrate into systemitem.

Processing expectations

Formatted inline.


Common attributes and common linking attributes.


Identifies the nature of the system item

Enumerated values:

A daemon or other system process (syslogd)


A domain name (


An ethernet address (00:05:4E:49:FD:8E)


An event of some sort (SIGHUP)


An event handler of some sort (hangup)


A filesystem (ext3)


A fully qualified domain name (


A group name (wheel)


An IP address (


A library (libncurses)


A macro


A netmask (


A newsgroup (comp.text.xml)


An operating system name (Hurd)


A process (gnome-cups-icon)


A protocol (ftp)


A resource


A server (


A service (ppp)


A system name (hephaistos)


A user name (ndw)

Parents [+]

This element occurs in 51 elements.

Children [+]

This element contains 17 elements.


  1 <article xmlns=''
  2          xmlns:xlink=''>
    <title>Example systemitem</title>
    <para>For many years, O'Reilly's primary web server, 
  6 <link xlink:href=""></link>,
    was hosted by <application>WN</application> on
  8 <systemitem class="systemname"></systemitem>.

For many years, O'Reilly's primary web server,, was hosted by WN on

Last revised by Norman Walsh on 6 Jun 2011 (git hash: 6ffcc7640bbc5f852a318e452c9f210f03292cb9)