Think of different inputs similarily to different ports on a server. If you have only your httpd listening on TCP/80 there will be nothing to process your mail sent to TCP/25.

Same here - if your rsyslogd listens exclusively with imrelp, there are no other inputs.



On 27.02.2023 15:11, Tomas Bekecs Zvarillo via rsyslog wrote:
To clarify this issue more. If I use imrelp on the server side, only data
which will be sent and proceed are through omrelp ? I'm asking because
processing where client is using omfwd and server have imptcp is working.
Tests via logger are working on imptcp, imtcp modules, but not in imrelp
module

On Mon, Feb 27, 2023 at 2:47 PM Mariusz Kruk via rsyslog <
rsyslog@lists.adiscon.com> wrote:

Well, logger sends where you tell him to send (either local socket or to
the specified "plain syslog" TCP/UDP destination) whereas rsyslogd will
listen on whatver inputs you specify in your config.

So if you specify _only_ RELP inputs, you won't be able to send data any
other way.

On 27.02.2023 14:40, Jozef Zajac via rsyslog wrote:
After additional testing seems that configuration is correct.
Messages were processed correctly when we send them via omrelp. Basic
testing with logger was not successful.
It mean that if we want use imrelp then also client has to send
messages via omrelp? As we were not able process messages via logger
or omfwd it look so.

Best Regards,
Jozef
______________________________________________________________
Od: "Rainer Gerhards via rsyslog" <rsyslog@lists.adiscon.com>
Komu: "rsyslog-users" <rsyslog@lists.adiscon.com>
Dátum: 24.02.2023 18:25
Predmet: Re: [rsyslog] imrelp - no messages processed

CC: <rgerha...@hq.adiscon.com>
also: do you send a proper RELP greeting via telnet? If not, this is
the reason the connection is closed.

Rainer
El vie, 24 feb 2023 a las 18:23, David Lang via rsyslog
(<rsyslog@lists.adiscon.com>) escribió:
what is the rest of your config? what you have shown is the config
to receive
logs, but not any instructions to rsyslog to write logs out.

David Lang

On Fri, 24 Feb 2023, Jozef Zajac via rsyslog wrote:

Date: Fri, 24 Feb 2023 15:41:42 +0100
From: Jozef Zajac via rsyslog <rsyslog@lists.adiscon.com>
To: rsyslog@lists.adiscon.com
Cc: Jozef Zajac <zajac.jo...@centrum.sk>
Subject: [rsyslog] imrelp - no messages processed

Hi everyone,


I'm trying to put rsyslog into a docker container with the imrelp
module.
Setup is quite easy:


rsyslog_docker_global/03-modules.conf:2:module(load="imrelp")
rsyslog_docker_lin/rsyslog.d/11-input-tcp.conf:1:input(type="imrelp"
port="2514" maxDataSize="10k" keepAlive="on")


Unfortunately, there are no logs, but service looks fine. Logger
is working
with UDP (imudp module) but not in imrelp tcp. When I tried the
ptcp module,
logging worked fine.


Setup:
Ubuntu - 22.04 LTS, 5.15.0-56-generic
docker version
Client: Docker Engine - Community
  Version:           23.0.1
  API version:       1.42
  Go version:        go1.19.5
  Git commit:        a5ee5b1
  Built:             Thu Feb  9 19:47:01 2023
  OS/Arch:           linux/amd64
  Context:           default


Server: Docker Engine - Community
  Engine:
   Version:          23.0.1
   API version:      1.42 (minimum version 1.12)
   Go version:       go1.19.5
   Git commit:       bc3805a
   Built:            Thu Feb  9 19:47:01 2023
   OS/Arch:          linux/amd64
   Experimental:     false
  containerd:
   Version:          1.6.18
   GitCommit:  2456e983eb9e37e47538f59ea18f2043c9a73640
  runc:
   Version:          1.1.4
   GitCommit:        v1.1.4-0-g5fd4c4d
  docker-init:
   Version:          0.19.0
   GitCommit:        de40ad0


rsyslog - 8.2302
rsyslog-relp - 8.2302
librelp0 - 1.11.0


When I try to connect to imrelp with telnet and close the session,
I receive
this error:

v8.2302 (docker)
syslog.err rsyslogd: imrelp[2514]: error 'server closed relp
session, session
broken', object  'lstn 2514: conn to clt127.0.0.1/localhost' -
input may not
work as intended [v8.2302.0 try https://www.rsyslog.com/e/2353
<https://www.rsyslog.com/e/2353> ]
v8.1901 (no docker)
syslog.err rsyslogd: imrelp[514]: error 'server closed relp
session, session
broken', object  'lstn 514: conn to clt 127.0.0.1/localhost' -
input may not
work as intended [v8.1901.0 try https://www.rsyslog.com/e/2353
<https://www.rsyslog.com/e/2353> ]
v8.2112 (no docker)
syslog.err syslogd: imrelp[514]: error 'server closed relp
session, session
broken', object  'lstn 514: conn to clt 127.0.0.1/localhost' -
input may not
work as intended [v8.2112.0 try https://www.rsyslog.com/e/2353
<https://www.rsyslog.com/e/2353> ]

When I ran rsyslog in debug mode, nothing unusual showed up.
(/usr/sbin/rsyslogd -i /var/run/syslog.pid -f /etc/rsyslog.conf -dn)



Is there something that I'm missing on this basic setup ?


Thank you for any advice


Best regards,


Tomas Bekecs

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