- Remote Program Load (RPL) server configuration file
The /etc/rpld.conf file contains the configuration information for operation of rpld, the RPL-based network boot server. It is a text file containing keyword-value pairs and comment.
The keyword-value pairs specify the value to use for parameters used by the RPL server. Comments can be entered by starting the line using the # character. The user can add comments to the file for customized configurations.
Alternate RPL server configuration files can be specified when running the RPL server by supplying a configuration file similar to the default configuration file.
All keywords are case-sensitive. Not all keywords must be present. (However, note that the end keyword at the end of the file must be present.) If a keyword is not present, internal defaults, which are the default values described here, will be used. Keyword-value pairs are specified by:
keyword = value
Specify the number of error, warning, and information messages to be generated while the RPL server is running. The valid range is 0-9. A value of 0 means no message at all, while a value of 9 will generate the most messages. The default is 0. Note that it is best to limit the value to 8 or below; use of level 9 may generate so many debug messages that the performance of the RPL server may be impacted.
A numeric value specifying where to send the messages to:
0 = standard output 1 = syslogd 2 = log file
The default is 2.
A numeric value specifying the maximum number of simultaneous network boot clients to be in service. A value of -1 means unlimited except where system resources is the limiting factor. Any positive value will set a limit on the number of clients to be in service at the same time unless system resource constraints come in before the limit. The default is -1.
A numeric value indicating whether the RPL server should run in the background or not. A 0 means run in the background and a 1 means do not run in the background. The difference is whether the server will relinquish the controlling terminal or not. The default is 1.
The default size of data frames to be used to send bootfile data to the network boot clients. This size should not exceed the limits imposed by the underlying physical media. For ethernet/802.3, the maximum physical frame size is 1500 octets. The default is 1500. Note that the protocol overhead of LLC1 and RPL is 32 octets, resulting in a maximum data length of 1468 octets.
The log file to which messages will be sent if DebugDest is set to 2 (the default). The default file is var/spool/rpld.log.
The initial delay factor to use to control the speed of downloading. In the default mode of operation, the downloading process does not wait for a positive acknowledgment from the client before the next data frame is sent. In the case of a fast server and slow client, data overrun can result and requests for retransmission will be frequent. By using a delay factor, the speed of data transfer is controlled to avoid retransmission requests. Note that the unit of delay is machine dependent and bears no correlation with the actual time delayed.
Delay granularity. If the initial delay factor is not suitable and the rate of downloading is either too fast or too slow, retransmission requests from the clients will be used to adjust the delay factor either upward (to slow down the data rate) or downward (to speed up the data rate). The delay granularity is used as the delay delta for adjustment.
Keyword at the end of the file. It must be present.
See attributes(5) for descriptions of the following attributes: