snca(1)

NAME | DESCRIPTION | FILES | ATTRIBUTES | SEE ALSO

NAME

nca, snca- the Solaris Network Cache and Accelerator (NCA)

DESCRIPTION

The Solaris Network Cache and Accelerator ("NCA ") is a kernel module designed to provide improved web server performance. The kernel module, ncakmod , services HTTP requests. To improve the performance of servicing HTTP requests, the NCA kernel module maintains an in-kernel cache of web pages. If the NCA kernel module cannot service the request itself, it passes the request to the http daemon (httpd ) by means of a private interface. The logging facility, ncalogd , logs all requests. This private interface uses the Solaris Doors RPC mechanism. See, for example,door_create(3DOOR) , door_call(3DOOR) , anddoor_bind(3DOOR) .

The NCA cache consistency is maintained by honoring HTTP headers dealing with a given content type and expiration date, much the same way as a proxy cache.

For configuration information, see System Administration Guide, Volume 3

NCA is intended to be run on a dedicated webserver. Running other large processes while running NCA may cause undesirable behavior.

FILES

/etc/nca/ncakmod.conf

Lists configuration parameters for NCA .

/etc/nca/ncalogd.conf

Lists configuration parameters for NCA logging.

/etc/nca/nca.if

Lists the physical interfaces on which NCA will run.

/etc/hostname.{}{0-9}

Lists all physical interfaces configured on the server.

/etc/hosts

Lists all host names associated with the server. Entries in this file must match with entries in /etc/hostname.{}{0-9} for NCA to function.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWncar
Interface Stability	Evolving

SEE ALSO

door_bind(3DOOR) , door_call(3DOOR) , door_create(3DOOR) , nca.if(4) , ncakmod.conf(4) , attributes(5)

System Administration Guide, Volume 3

SunOS 5.8  Last Revised 12 Oct 1999

NAME | DESCRIPTION | FILES | ATTRIBUTES | SEE ALSO