NXLog User Guide

111.20. UDP (om_udp)

This module sends log messages as UDP datagrams to the address and port specified. UDP is the transport protocol of the legacy BSD Syslog standard as described in RFC 3164, so this module can be particularly useful to send messages to devices or Syslog daemons which do not support other transports.

111.20.1. Configuration

The om_udp module accepts the following directives in addition to the common module directives. The Host directive is required.

Host: The module will connect to this IP address or DNS hostname.

Port: The module will connect to this port number on the remote host. The default is port 514.

LocalPort: This optional directive specifies the local port number of the connection. If this is not specified a random high port number will be used, which is not always ideal in firewalled network environments.

SockBufSize: This optional directive sets the socket buffer size (SO_SNDBUF) to the value specified. If this is not set, the operating system default is used.

111.20.2. Examples

Example 614. Sending Raw Syslog over UDP

This configuration reads log messages from socket and forwards them via UDP.

nxlog.conf


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  <Input uds>
    Module  im_uds
    UDS     /dev/log
</Input>

<Output udp>
    Module  om_udp
    Host    192.168.1.1
    Port    1514
</Output>

<Route uds_to_udp>
    Path    uds => udp
</Route>