File Context
The fs type creates a file system context (or file context) for a user or a host. For example, the command
# fncreate -t fs org/sales/user/petrova/fs/ |
creates the fs context for user petrova. Because the terminal atomic name is a namespace identifier, fncreate also adds a binding for org/sales/user/petrova/_fs/ that is bound to the reference of org/sales/user/petrova/fs/.
The fs context of a user is the user's home directory as it is stored in the NIS+ passwd.org_dir table. The fs context of a host is the set of NFS file systems that the host exports.
Use the fncreate_fs command to create file contexts for organizations and sites or to create file contexts other than the defaults for users and hosts. See "File Contexts Administration" for details.
The fs context created is owned by the administrator who ran the fncreate command.
Namespace Identifier Context
The nsid (namespace identifier) type creates a context in which namespace identifiers can be bound.
# fncreate -t nsid org/sales/site/alameda.bldg-5/ |
creates the nsid context for the site alameda.bldg-5 and permits the creation of subcontexts such as service/. Continuing with this example, you could then execute the command
# fncreate -t service org/sales/site/alameda.bldg-5/service/ |
to create the service context for alameda.bldg-5.
The nsid context created is owned by the administrator who ran the fncreate command.
Administering Enterprise Level Contexts
A number of tools are provided for examining and managing FNS contexts. The commands and their syntax are shown in the sections that follow.
Displaying the Binding
fnlookup displays the binding of the given composite name.
fnlookup [-v][-L] composite_name |
Table 25-14 fnlookup Command Options
Option | Description |
|---|---|
-v | Displays the binding in more detail |
-L | Displays the reference to which the XFN link is bound |
For example, to show the binding for the user darwin in detail, you would enter:
# fnlookup -v user/darwin/ Reference type: onc_fn_user Address type: onc_fn_nisplus length: 52 context type: user representation: normal version: 0 internal name: fns_user_darwin.ctx_dir.sales.doc.com. |
Suppose user/Charles.Darwin is linked to user/darwin. The first command in the following example shows what user/Charles.Darwin is bound to (an XFN link). The second command follows the XFN link, user/darwin, and shows what user/darwin is bound to (the user context).
# fnlookup user/Charles.Darwin Reference type: fn_link_ref Address type: fn_link_addr Link name: user/darwin # fnlookup -L user/Charles.Darwin Reference type: onc_fn_user Address type: onc_fn_nisplus context type: user |
Listing the Context
fnlist lists the contents of the context identified by the given name.
fnlist [-lv] [name] |
Table 25-15 fnlist Command Options
Option | Description |
|---|---|
-v | Displays the binding in more detail |
-l | Displays the bindings of the names bound in the named context |
For example, to display the bindings under the user context:
# fnlist user/ Listing 'user/': jjones julio chaim James.Jones |
If no name is given, the command lists the contents of the initial context.
# fnlist Listing '': _myorgunit ... _myself thishost myself _orgunit _x500 _host _thisens myens thisens org orgunit _dns thisuser _thishost myorgunit _user thisorgunit host _thisorgunit _myens user |
When the -l option is given, the bindings of the names bound in the named context are displayed.
# fnlist -l user/ Listing bindings 'user/': name: julio Reference type: onc_fn_user Address type: onc_fn_nisplus context type: user name: chaim Reference type: onc_fn_user Address type: onc_fn_nisplus context type: user name: James.Jones Reference type: fn_link_ref Address type: fn_link_addr Link name: user/jjones name: jjones Reference type: onc_fn_user Address type: onc_fn_nisplus context type: user |
When the -v option is given in conjunction with the -l option, the bindings are displayed in detail.
# fnlist -lv user/ Listing bindings 'user/': name: julio Reference type: onc_fn_user Address type: onc_fn_nisplus length: 52 context type: user representation: normal version: 0 internal name: fns_user_julio.ctx_dir.sales.doc.com. name: chaim Reference type: onc_fn_user Address type: onc_fn_nisplus length: 52 context type: user representation: normal version: 0 internal name: fns_user_chaim.ctx_dir.sales.doc.com. name: James.Jones Reference type: fn_link_ref Address type: fn_link_addr length: 11 data: 0x75 0x73 0x65 0x72 0x2f 0x6a 0x6a 0x6f 0x6e 0x65 user/jjones name: jjones Reference type: onc_fn_user Address type: onc_fn_nisplus length: 52 context type: user representation: normal version: 0 internal name: fns_user_jjones.ctx_dir.sales.doc.com. |