The loggly() destination has the following options. You can also set other options of the underlying tcp() driver (for example, port number or TLS-encryption).
Description: This option makes it possible to execute external programs when the relevant driver is initialized or torn down. The hook-commands() can be used with all source and destination drivers with the exception of the usertty() and internal() drivers.
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NOTE: The syslog-ng OSE application must be able to start and restart the external program, and have the necessary permissions to do so. For example, if your host is running AppArmor or SELinux, you might have to modify your AppArmor or SELinux configuration to enable syslog-ng OSE to execute external applications. |
To execute an external program when syslog-ng OSE starts or stops, use the following options:
startup() | |
Type: | string |
Default: | N/A |
Description: Defines the external program that is executed as syslog-ng OSE starts. |
shutdown() | |
Type: | string |
Default: | N/A |
Description: Defines the external program that is executed as syslog-ng OSE stops. |
To execute an external program when the syslog-ng OSE configuration is initiated or torn down, for example, on startup/shutdown or during a syslog-ng OSE reload, use the following options:
setup() | |
Type: | string |
Default: | N/A |
Description: Defines an external program that is executed when the syslog-ng OSE configuration is initiated, for example, on startup or during a syslog-ng OSE reload. |
teardown() | |
Type: | string |
Default: | N/A |
Description: Defines an external program that is executed when the syslog-ng OSE configuration is stopped or torn down, for example, on shutdown or during a syslog-ng OSE reload. |
In the following example, the hook-commands() is used with the network() driver and it opens an iptables port automatically as syslog-ng OSE is started/stopped.
The assumption in this example is that the LOGCHAIN chain is part of a larger ruleset that routes traffic to it. Whenever the syslog-ng OSE created rule is there, packets can flow, otherwise the port is closed.
source { network(transport(udp) hook-commands( startup("iptables -I LOGCHAIN 1 -p udp --dport 514 -j ACCEPT") shutdown("iptables -D LOGCHAIN 1") ) ); };
Type: | string |
Default: |
Description: Your Customer Token that you received from Loggly.
The logmatic() destination sends log messages to the Logmatic.io Logging-as-a-Service provider. You can send log messages over TCP, or encrypted with TLS.
logmatic(token());
To use the logmatic() destination, the only mandatory parameter is your user token. The following example sends every log from the system() source to your Logmatic.io account.
log { source { system(); }; destination { logmatic(token("<API-KEY-AS-PROVIDED-BY-LOGMATIC.IO>")); }; };
The following example uses TLS encryption. Before using it, download the CA certificate of Logmatic.io and copy it to your hosts (for example, into the /etc/ssl/certs/ directory.
log { destination { logmatic(token("<API-KEY-AS-PROVIDED-BY-LOGMATIC.IO>") port(6514) tls(peer-verify(required-trusted) ca-dir('/etc/ssl/certs')) ); }; };
The following example parses the access logs of an Apache webserver from a file and sends them to Logmatic.io in JSON format.
log { source { file("/var/log/apache2/access.log" flags(no-parse)); }; parser { apache-accesslog-parser(); }; destination { logmatic(token("<API-KEY-AS-PROVIDED-BY-LOGMATIC.IO>") tag(apache) template("$(format-json .apache.* timestamp=${ISODATE})")); }; }
To use the logmatic() driver, the scl.conf file must be included in your syslog-ng OSE configuration:
@include "scl.conf"
The logmatic() driver is actually a reusable configuration snippet configured to send log messages using the tcp() driver using a template. For details on using or writing such configuration snippets, see Reusing configuration blocks. You can find the source of this configuration snippet on GitHub.
The logmatic() destination has the following options. You can also set other options of the underlying tcp() driver (for example, port number or TLS-encryption).
Description: This option makes it possible to execute external programs when the relevant driver is initialized or torn down. The hook-commands() can be used with all source and destination drivers with the exception of the usertty() and internal() drivers.
|
NOTE: The syslog-ng OSE application must be able to start and restart the external program, and have the necessary permissions to do so. For example, if your host is running AppArmor or SELinux, you might have to modify your AppArmor or SELinux configuration to enable syslog-ng OSE to execute external applications. |
To execute an external program when syslog-ng OSE starts or stops, use the following options:
startup() | |
Type: | string |
Default: | N/A |
Description: Defines the external program that is executed as syslog-ng OSE starts. |
shutdown() | |
Type: | string |
Default: | N/A |
Description: Defines the external program that is executed as syslog-ng OSE stops. |
To execute an external program when the syslog-ng OSE configuration is initiated or torn down, for example, on startup/shutdown or during a syslog-ng OSE reload, use the following options:
setup() | |
Type: | string |
Default: | N/A |
Description: Defines an external program that is executed when the syslog-ng OSE configuration is initiated, for example, on startup or during a syslog-ng OSE reload. |
teardown() | |
Type: | string |
Default: | N/A |
Description: Defines an external program that is executed when the syslog-ng OSE configuration is stopped or torn down, for example, on shutdown or during a syslog-ng OSE reload. |
In the following example, the hook-commands() is used with the network() driver and it opens an iptables port automatically as syslog-ng OSE is started/stopped.
The assumption in this example is that the LOGCHAIN chain is part of a larger ruleset that routes traffic to it. Whenever the syslog-ng OSE created rule is there, packets can flow, otherwise the port is closed.
source { network(transport(udp) hook-commands( startup("iptables -I LOGCHAIN 1 -p udp --dport 514 -j ACCEPT") shutdown("iptables -D LOGCHAIN 1") ) ); };
Type: | string |
Default: |
Description: Your API Key that you received from Logmatic.io.
The mongodb() driver sends messages to a MongoDB database. MongoDB is a schema-free, document-oriented database. For the list of available optional parameters, see mongodb() destination options.
mongodb(parameters);
The mongodb() driver does not support creating indexes, as that can be a very complex operation in MongoDB. If needed, the administrator of the MongoDB database must ensure that indexes are created on the collections.
The mongodb() driver does not add the _id field to the message: the MongoDB server will do that automatically, if none is present. If you want to override this field from syslog-ng OSE, use the key() parameter of the value-pairs() option.
The syslog-ng OSE mongodb() driver is compatible with MongoDB server version 1.4 and newer.
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NOTE:
By default, syslog-ng OSE handles every message field as a string. For details on how to send selected fields as other types of data (for example, handle the PID as a number), see Specifying data types in value-pairs. |
The following example creates a mongodb() destination using only default values.
destination d_mongodb { mongodb(); };
The following example displays the default values.
destination d_mongodb { mongodb( uri("mongodb://localhost:27017/syslog") collection("messages") value-pairs( scope("selected-macros" "nv-pairs" "sdata") ) ); };
The following example shows the same setup using the deprecated libmongo-client syntax (as used in syslog-ng OSE version
destination d_mongodb { mongodb( servers("localhost:27017") database("syslog") collection("messages") value-pairs( scope("selected-macros" "nv-pairs" "sdata") ) ); };
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