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Virtual Host General

Table of Contents

General

Max Keep-Alive Requests | Smart Keep-Alive | Enable GZIP | Enable GeoLocation Lookup

Access Log

Log Control | File Name | Piped Logger | Log Format | Log Headers | Rolling Size (bytes) | Keep Days | Bytes Log | Compress Archive

Customized Error Pages

Error Code | Custom Error Message

Max Keep-Alive Requests

Description

Specifies the maximum requests that can be served through a keep-alive (persistent) connection. Connections will be closed once this limit is reached. You can specify a different limit for each virtual hosts. This number cannot exceed the server-level Max Keep-Alive Requests limit.

Syntax

Integer number

Tips

Set to a reasonably high value. A value of "1" or less will disable keep-alive connections.

See Also

Max Keep-Alive Requests

Smart Keep-Alive

Description

Specifies whether to turn on Smart Keep-Alive for this virtual host. This option is only effective if Smart Keep-Alive is enabled at the server level and Max Keep-Alive Requests is greater than 1.

Syntax

Select from radio box

Tips

Enable this for busy web sites.

Enable GeoLocation Lookup

Description

Specifies whether to enable/disable IP Geolocation lookup. Can be set at server, virtual host, or context level. IP Geolocation is disabled by default when using value "Not Set".

Syntax

Select from radio box

See Also

Use Client IP in Header, DB File Path, DB Cache Type

Log Control

Description

Where the access log should be written. There are three options:

  1. Write to the server's access log
  2. Create an access log for this virtual host
  3. Disable access logging

Syntax

Select from drop down list

File Name

Description

The access log filename.

Syntax

Filename which can be an absolute path or a relative path to $SERVER_ROOT, $VH_ROOT.

Tips

Put the access log file on a separate disk.

Piped Logger

Description

Specifies an external application that will receive the access log data sent by LiteSpeed through a pipe on its STDIN stream (file handle 0). When specified, the access log will be sent to the logger application instead of the access log file specified in previous entry.

LiteSpeed load balancer performs simple load balancing among multiple logger applications if more than one instance of a logger application is configured. LiteSpeed Web Server always attempts to keep the number of logger processes as low as possible. Only when one logger application fails to process access log entries in time will the server attempt to spawn another logger application instance.

If a logger process crashes, the server will start another instance but the log data in the stream buffer will be lost. It is possible to lose log data if external loggers cannot keep up with the speed and volume of the log stream.
File path to the logger application should be given here, and optionally, the number of application instances can be set before the file path, followed by '|'.

Syntax

[<intances>|]<path_to_logger_app>

Example

4|/path/to/logger/app
tells the server to start up to 4 logger processes.

/path/to/logger/app
tells the server to start only one logger process.

Log Format

Description

Specifies the log format for the access log. When log format is set, it will override the Log Headers setting.

Syntax

String. The syntax of log format is compatible with Apache 2.0's custom log format.

Example

Common Log Format (CLF)
"%h %l %u %t \"%r\" %>s %b"

Common Log Format with Virtual Host
"%v %h %l %u %t \"%r\" %>s %b"

NCSA extended/combined log format
"%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"

Log cookie value of Foobar
"%{Foobar}C"

See Also

Log Headers

Log Headers

Description

Specifies whether to log HTTP request headers: Referer, UserAgent, and Host.

Syntax

Select from checkbox

Tips

Turn this off if you do not need these headers in the access log.

See Also

Log Format

Rolling Size (bytes)

Description

Specifies when the current log file needs to be rolled over, also known as log rotation. When the file size is over the rollover limit, the active log file will be renamed to log_name.mm_dd_yyyy(.sequence) in the same directory and a new active log file will be created. The actual size of the rotated log file once it is created will sometimes be a little bigger than this size limit. Set to 0 to disable log rotation.

Syntax

Integer number

Tips

Append "K", "M", "G" to the number for kilo-, mega- and giga- bytes.

Keep Days

Description

Specifies how many days the access log file will be kept on disk. Only rotated log files older than the specified number of days will be deleted. The current log file will not be touched regardless how many days worth of data it contains. If you do not want to auto-delete stale and very old log files, set this to 0.

Syntax

Integer number

Bytes Log

Description

Specifies the path to the bandwidth bytes log file. When specified, a cPanel compatible bandwidth log will be created. This will log the total bytes transferred for a request including both the request and reply bodies.

Syntax

Filename which can be an absolute path or a relative path to $SERVER_ROOT.

Tips

Put the log file on a separate disk.

Compress Archive

Description

Specifies whether to compress rotated log files in order to save disk space.

Syntax

Select from radio box

Tips

Log files are highly compressible and this is recommended to reduce disk usage for old logs.

Customized Error Pages

Description

Whenever the server has a problem processing a request, the server will return an error code and an html page as an error message to the web client. Error codes are defined in the HTTP protocol (see RFC 2616). LiteSpeed Web Server has a built-in default error page for each error code, but a customized page can be configured for each error code as well. These error pages can be even further customized to be unique for each virtual host.

Error Code

Description

Specifies the HTTP status code for the error page. Only the selected HTTP status code will have this customized error page.

Syntax

Select from drop down list

Custom Error Message

Description

Specify a custom error message.

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