Sending UDP packets with `logger` command
I have couple different solutions for running custom syslog server (based on ).
The problem I am facing is that the following command does not send UDP packets to the server:
logger -n 127.0.0.1 -P 514 "Test message"Do I properly send a test message?
Any ideas on what I am doing wrong? The scripts apparently should work, but I am unable to confirm they work during tests.
EDIT: I confirmed that syslog receiver is indeed receiving messages sent with UDP protocol. Thus I also clarified the question removing this piece.
2 Answers
An other solution with netcat :
echo -n "test message" | nc -4u -w1 <host> <udp port>
I lost some sanity trying to figure out why I couldn't log across different machines to test our remote logging yesterday
It turns out the util-linux/bsdutils core package which contains "logger", has version 2.20.1 installed and that version silently ignores the -n switch. This is what I found out:
- All newer versions of logger from 2.21 to 2.24 build and work fine.
- Version 2.20.1 builds fine but ignores the -n switch just like the installed version.
- All Ubuntu from 12.04 up to including "trusty" all contain 2.20.1 :(
SOLUTION:
Get the latest util-linux from: ftp://
Unpack, ./configure, make, and copy the binary from ./misc-utils/logger to /usr/local/bin/logger.
You may have to refresh your shell such as "source ~/.bashrc" for the /usr/local/bin version to bite. Confirm the new logger is installed with "logger -V" where it should NOT say "logger from util-linux 2.20.1" anymore.
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