The Configuration Server Card
Contents / Changing Server
Parameters / The Server Fields
The Configuration Server Card is used to tune server performance. It
allows you to:
- Enable or disable Access Control Lists
- Enable or disable document caching
- Set the minimum and maximum size of files in the cache buffer
- Set the interval at which the server checks the validity of cached
files
Changing Server Parameters
If you change parameters on the Server Card, you can:
The Server Card Fields
The Configuration Server Card fields are:
- Comment-A text field where you can store comments about the
current configuration. Any comments entered into this field are saved when
the configuration is saved.
- Server User - The username the server
will use when it is running. By using a username other than root, you can
restrict which files and directories the server can access. The username
you enter here must already exist, and the user must have permission to
read files in the document root and to read and write files in the configuration
files directory.
- Admin E-Mail - This field can be used
to enter an address for a server administrator. The value of this entry
is stored in the configuration file in server_admin and is available as
an environment variable (SERVER_ADMIN) to CGI and SSI scripts.
- Enable Access Control -Turns
access controls on or off. Access control lists (ACLs) allow you to control
access to resources on the server. Warning: If you disable ACLs
any client will be able to access the SWS administration screens.
- Access Control File - Specifies the location of the top-level ACL file. By default this is /etc/http/access.acl, but you can enter the absolute path to any file you want.
- Enable Document Cache-A toggle field that turns on, or turns
off, the server document cache. If document caching is enabled, requested
documents will be cached. Future requests for previously-accessed URLs
will be drawn from the cache, which can be much faster than serving the
document from the file system.
- Max Entry Size (MBytes)-Sets the maximum size of individual
files to be cached. You can use this setting to prevent very large files
from filling the Large File Cache. The default is 1 MByte. Files larger
than 1 MByte are not cached.
- Small File Cache (MBytes)-Sets the size of the Small File Cache.
Files smaller than 16K are read by the Sun WebServer into the Small File
Cache. The default size is 8 MBytes, but there is no set limit, except
that of your own system memory.
- Large File Cache (MBytes)-Sets the size of the Large File Cache.
Files larger than 16K are mapped into the Large File Cache. The default
is 256 MBytes, but there is no set limit, except that of your own system
memory.
- Verification Interval-Sets the length of time the server will
wait before verifying the validity of a cached file. The longer the interval,
the less network and file system traffic, but the greater the chance the
cached version will differ from the original.