syslog-ng-ctl
Name
syslog-ng-ctl — Display message statistics and enable verbose and debug modes in syslog-ng Premium Edition
Synopsis
syslog-ng-ctl [command] [options]
Description
NOTE: The syslog-ng-ctl application is distributed with the syslog-ng Premium Edition system logging application, and is usually part of the syslog-ng package. The latest version of the syslog-ng application is available at the syslog-ng page.
This manual page is only an abstract, for the complete documentation of syslog-ng, see the syslog-ng Documentation page.
The syslog-ng-ctl application is a utility that can be used to:
-
enable/disable various syslog-ng messages for troubleshooting
-
display statistics about the processed messages
-
reload the configuration of syslog-ng PE
-
stop syslog-ng PE.
Enabling troubleshooting messages
command [options]
Use the syslog-ng-ctl <command> --set=on command to display verbose or debug messages. If you are trying to solve configuration problems, the verbose messages are usually sufficient. Debug messages are needed mostly for finding software errors. After solving the problem, do not forget to turn these messages off using the syslog-ng-ctl <command> --set=off. Note that enabling debug messages does not enable verbose messages.
Use syslog-ng-ctl <command> without any parameters to display whether the particular type of messages are enabled or not.
If you need to use a non-standard control socket to access syslog-ng, use the syslog-ng-ctl <command> --set=on --control=<socket> command to specify the socket to use.
- verbose
-
Print verbose messages. If syslog-ng was started with the
--stderror-eoption, the messages will be sent to stderr. If not specified, syslog-ng will log such messages to its internal source. - debug
-
Print debug messages. If syslog-ng was started with the
--stderror-eoption, the messages will be sent to stderr. If not specified, syslog-ng will log such messages to its internal source.
Example:
syslog-ng-ctl verbose --set=on
The stats command
stats [options]
Use the stats command to display statistics about the processed messages. For details about the displayed statistics, see the syslog-ng Documentation page. The stats command has the following options:
- --control=<socket> or -c
-
Specify the socket to use to access syslog-ng. Only needed when using a non-standard socket.
- --reset=<socket> or -r
-
Reset all statistics to zero, except for the
storedcounters. (Thestoredcounters show the number of messages stored in the message queue of the destination driver, waiting to be sent to the destination.)
Example:
syslog-ng-ctl stats
An example output:
src.internal;s_all#0;;a;processed;6445 src.internal;s_all#0;;a;stamp;1268989330 destination;df_auth;;a;processed;404 destination;df_news_dot_notice;;a;processed;0 destination;df_news_dot_err;;a;processed;0 destination;d_ssb;;a;processed;7128 destination;df_uucp;;a;processed;0 source;s_all;;a;processed;7128 destination;df_mail;;a;processed;0 destination;df_user;;a;processed;1 destination;df_daemon;;a;processed;1 destination;df_debug;;a;processed;15 destination;df_messages;;a;processed;54 destination;dp_xconsole;;a;processed;671 dst.tcp;d_network#0;10.50.0.111:514;a;dropped;5080 dst.tcp;d_network#0;10.50.0.111:514;a;processed;7128 dst.tcp;d_network#0;10.50.0.111:514;a;stored;2048 destination;df_syslog;;a;processed;6724 destination;df_facility_dot_warn;;a;processed;0 destination;df_news_dot_crit;;a;processed;0 destination;df_lpr;;a;processed;0 destination;du_all;;a;processed;0 destination;df_facility_dot_info;;a;processed;0 center;;received;a;processed;0 destination;df_kern;;a;processed;70 center;;queued;a;processed;0 destination;df_facility_dot_err;;a;processed;0
Displaying license-related information
syslog-ng-ctl show-license-info [options]
The syslog-ng PE application uses a license in server mode to determine the maximum number of hosts that are allowed to connect. Use the syslog-ng-ctl show-license-info command to display license-related information the number of hosts currently logging to your server. This helps you to plan your capacity, to check your license usage, and to detect client misconfiguration that can result in a license miscount anomaly. Note that in client or relay mode, syslog-ng PE does not require a license.
The syslog-ng-ctl show-license-info command displays the following information. In case of an unlimited license, or in client or relay mode, only the license type is displayed:
-
License Type: none, limited, unlimited
-
Host Limit: the maximum number of hosts that are allowed to connect.
-
Currently Used Slots: the number of currently used host slots
-
Usage: the percent of used host slots
-
Licensed Clients: the list of hostnames that are stored in the license module
The syslog-ng-ctl show-license-info command has the following options:
- --json or -J
-
Print license-related information in JSON format.
Example:
syslog-ng-ctl show-license-info
An example output:
License-Type: limited
Host-Limit: 10
Currently-Used-Slots: 7
Usage: 70%
Licensed-Clients:
192.168.0.1
192.168.0.2
192.168.0.3
192.168.1.4
192.168.1.5
Example:
syslog-ng-ctl show-license-info --json
An example output:
{
"license_type": "limited",
"host_limit": 10,
"currently_used_slots": 7,
"usage": "70%",
"licensed_clients": [
"xy.testdomain",
"testhost",
"192.168.0.3",
"test_host",
"192.168.1.5"
]
}
Example:
syslog-ng-ctl show-license-info
in case of an unlimited license
An example output:
$ syslog-ng-ctl show-license-info License-Type: unlimited
Example:
syslog-ng-ctl show-license-info
if syslog-ng PE is in client or relay mode
An example output:
$ syslog-ng-ctl show-license-info License-Type: none
Reloading the configuration
syslog-ng-ctl reload [options]
Use the syslog-ng-ctl reload command to reload the configuration file of syslog-ng PE without having to restart the syslog-ng PE application. The syslog-ng-ctl reload works like a SIGHUP (-1).
Stopping syslog-ng PE
syslog-ng-ctl stop [options]
Use the syslog-ng-ctl stop command to stop the syslog-ng PE application. The syslog-ng-ctl stop works like a SIGHUP (-15) on Linux and Unix systems.
See also
The syslog-ng Documentation page
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NOTE:
For the detailed documentation of syslog-ng PE see the syslog-ng Documentation page If you experience any problems or need help with syslog-ng, visit the syslog-ng FAQ or the syslog-ng mailing list. For news and notifications about of syslog-ng, visit the syslog-ng Blog. |
Author
This manual page was written by the One Identity Documentation Team <documentation@balabit.com>.
Copyright
Copyright© 2000-2018One Identity. Published under the Creative Commons Attribution-Noncommercial-No Derivative Works (by-nc-nd) 3.0 license. For details, see https://creativecommons.org//. The latest version is always available at the syslog-ng Documentation page.