loggen(1) - Linux man page

Name

loggen - Generate syslog messages at a specified rate

Synopsis

loggen [options]target [port]

Description

NOTE: The loggen application is distributed with the syslog-ng system logging application, and is usually part of the syslog-ng package. The latest version of the syslog-ng application is available at the official syslog-ng website [1] .

This manual page is only an abstract; for the complete documentation of syslog-ng, see The syslog-ng Administrator Guide [2] .

The loggen application is tool to test and stress-test your syslog server and the connection to the server. It can send syslog messages to the server at a specified rate, using a number of connection types and protocols.

Options

--csv or -C

Send statistics of the sent messages to stdout as CSV. This can be used for plotting the message rate.
--dgram or -D: Use datagram socket (UDP or unix-dgram) to send the messages to the target.
--help or -h: Display a brief help message.
--inet or -i: Use the TCP (by default) or UDP (when used together with the --dgram option) protocol to send the messages to the target.
--interval <seconds> or -I <seconds>: The number of seconds loggen will run. Default value: 10
--no-framing or -F: Do not use the framing of the IETF-syslog protocol style, even if the syslog-proto option is set.
--rate <message/second> or -r <message/second>: The number of messages generated per second. Default value: 1000
--read-file or -R: Read the messages from a file and send them to the target. See also the --skip-tokens option.
--size or -s: The size of a syslog message in bytes. Default value: 256
--skip-tokens: Skip the specified number of space-separated tokens (words) at the beginning of every line. For example, if the messages in the file look like foo bar message, --skip-tokens 2 skips the foo bar part of the line, and sends only the message part. Works only when used together with the --read-file parameter.
--stream or -S: Use a stream socket (TCP or unix-stream) to send the messages to the target.
--syslog-proto or -P: Use the new IETF-syslog message format as specified in RFC5424. By default, loggen uses the legacy BSD-syslog message format (as described in RFC3164). See also the --no-framing option.
--unix or -x: Use a UNIX domain socket to send the messages to the target.
--use-ssl or -U: Use an SSL-encrypted channel to send the messages to the target. Note that it is not possible to check the certificate of the target, or to perform mutual authentication.
--verbose or -V: Display the actual speed of sending messages in messages/second.

Example

The following command generates 100 messages per second for ten minutes, and sends them to port 2010 of the localhost via TCP. Each message is 300 bytes long.

loggen --size 300 --rate 100 --interval 600 127.0.0.1 2010

The following command is similar to the one above, but uses the UDP protocol.

loggen --inet --dgram --size 300 --rate 100 --interval 600 127.0.0.1 2010

Author

This manual page was written by the BalaBit Documentation Team <documentation@balabit.com>.

Copyright

Copyright © 2000-2009 BalaBit IT Security Ltd. Published under the Creative Commons Attribution-Noncommercial-No Derivative Works (by-nc-nd) 3.0 license. See http://creativecommons.org/ for details. The latest version is always available at http://www.balabit.com/support/documentation.

Notes

1. official syslog-ng website: http://www.balabit.com/network-security/syslog-ng/
2. The syslog-ng Administrator Guide: http://www.balabit.com/support/documentation/
3. syslog-ng mailing list: https://lists.balabit.hu/mailman/listinfo/syslog-ng