rsyslog is a popular syslog daemon implementation commonly used on many Linux distributions, e.g. it is the default syslog daemon on Debian.

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rsyslog seems to have vanished from my system

I'm debugging an issue where I think my server is spamming other servers because it is infected but all my logs stop in august last year, and rsyslog is missing from the system /etc/rsyslog.d still ...
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45 views

Save syslog from honeypot to a host virtual machine

So im making a research honeypot. The host is ubuntu 14.04. I want to store all of the logs from the honeypot ssh to the ubuntu host so the data is not lost. Does anyone know anything about this? I ...
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2k views

SELinux - allowing rsyslog open/read access to some files

So I've got three files I need rsyslog to open in order to forward the entries to another server. SELinux is preventing this with the following error: type=AVC msg=audit(1371186588.768:1324460): ...
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1answer
335 views

rsyslogd only logs from remote servers after enabling UDP:514 on Debian

I once wanted rsyslogd (5.8.11) on a Debian 7 container (under OpenVZ) to also receive logs from remote hosts. In that, it works. What no longer works is log messages from the local host. For instance ...
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1answer
56 views

What' the difference between /var/log and -/var/log in rsyslog.conf on RPi B?

I've noticed in my /etc/rsyslog.conf file that some destination got that symbol "-" in front of it. For example: mail.info -/var/log/mail.info mail.warn -/var/log/mail.warn mail.err ...
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1answer
296 views

logrotate custom “rotate” action equivalent for upstart?

In lots of online posts regarding how to rotate your iptables log files, for example here rsyslog config files get reloaded by the postrotate option of logrotate, presumably in order to stop rsyslog ...
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1answer
25 views

rsyslog adding unwanted text to outbound log data

I'm using rsyslog to send access & error log data to a remote server. The interface is in place, but I'm getting an extra bit of text in the outbound log data that isn't included in ...
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1answer
37 views

What can cause auth.log to start over again?

In my Raspberry Pi running Debian, I have a simple script to output the IPs which have successfully logged into the system via SSH. It's like this: #!/bin/bash egrep 'Accepted password|Accepted ...
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59 views

Logging of what ended a process?

Due to the tight resources of the server, I suspect System will end processes from time to time. I want those events to be logged in a separate file for investigation. How do I set that in ...
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303 views

How do I get debug information from rsyslog?

I followed the directions from: http://www.rsyslog.com/doc/debug.html I put the following in /etc/rsyslog.conf: $DebugLevel 2 $DebugFile /root/RSYSLOG.txt then I try: kill -USR1 `cat ...
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184 views

rsyslog doesnt seem to write to log file, without restart after touch'ing the file

I have a separate file for logging local7 facility, and this file is touched and permissions set, from my installer. But sometimes I see that the logs are not being written to it (after I do a ...
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37 views

filtering rsyslog log on the server side

Hi I'm trying to filter usb messages, specifically of new connections. all of my clients are configured to send to a central server their 'kern.*' log. problem is I'm getting to much "junk" logs and ...
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66 views

Logging apt/dpkg activity to syslog

My goal is to log apt/dpkg activity using syslog (rsyslog), so that log entries are sent to central syslog server. dpkg writes to /var/log/dpkg.log, apt writes to /var/log/apt directory. I did some ...
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224 views

Prevent rsyslog from logging remote hosts messages to local /var/log/syslog

I use rsyslog to save logs from remote hosts to a server this way: Server: # Logfile for each host $template DynaFile,"/var/log/rsyslog/%HOSTNAME%.log" *.* -?DynaFile Clients: *.* @servername ...
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1k views

Why does rsyslogd not honor the following lines in rsyslog.d

This is somewhat related to my previous question here. I have three files in /etc/rsyslog.d which is included from /etc/rsyslog.conf: 00-iptables.conf 50-default.conf postfix.conf The first one ...
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205 views

Extract particular words from Rsyslog %msg% facility

After lot of search on Google and reading all manuals available on man page and internet, I finally ask here. In my scenario, I have one rsyslog server working with mysql and a custom template ...
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1k views

Seagate external hard disk creating problems

I've bought a new hard disk, a Seagate (Backup Plus), but I'm having problems with it. Firstly, it doesn't mounts every time I plug it in. In such cases, I've got to restart the machine to work with ...
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65 views

How to explain strange kernel messages?

I have a server running on Debian Wheezy 3.2.68-1+deb7u1 x86_64. Lately strange records in /var/log/messages appeared. First messages of this log starts just after server reboot. 6.222.18 LEN=44 ...
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77 views

Restart rsyslog after ntp time sync

I want to ensure that the logs written, have the correct timestamp. So, when ntpd completes the sync (ntpq -c rv displays sync_ntp), I want to restart rsyslogd. But I am not finding any hooks/config ...
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87 views

rsyslog.conf only partly honored

I followed this description on how to enable audit for Samba (entry of Aug 10, 2009) and wanted to get all additionally enabled logging in a special log file (/var/log/samba/log.audit). The mentioned ...
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293 views

Logwatch ignores self-defined service, but explicit setting --service $service works

I am using SSLH on my server to accept both SSL and SSH connections on Port 443. As the logs of sshd and apache2 show each incoming connection via SSLH originating from 127.0.0.1, I want to add the ...
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111 views

Nested filtering in rsyslogd

I'm using rsyslogd and trying to figure out why things like if $hostname startswith 'd.42ba7373' and $programname == 'app' then /var/log/bla2app work just fine, but if $hostname startswith ...
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rsyslog and netsnmp support for Linux namespaces

I have configured different net namespaces (netns) on my linux machine (Ubuntu) with different routes in each. Now, if I want rsyslog and SNMP traps (netsnmp) to use one of the route from these ...
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294 views

How to suppress input overrun messages

I have a Raspberry Pi running Raspbian (a Debian flavor: Linux version 3.12-1-rpi (debian-kernel@lists.debian.org) (gcc version 4.7.2 (Debian 4.7.2-5+rpi1) ) #1 Debian 3.12.9-1+rpi1 (2014-05-19) ). ...
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Generating Email alert for events in system log

How to generate email alert for every critical event logged in system log /var/log/messages. Suppose, for the following log message, I want an email alert to be generated. Oct 24 11:17:42 eforms ...
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152 views

Get KERN_DEBUG messages into syslog on rhel7/centos7?

I've been trying to get KERN_DEBUG messages logged to a file in centos7, but have had no luck. I can get them just fine from "dmesg," but not /var/log/messages or /var/log/dmesg Here's a MWE kernel ...
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143 views

Changing the date format of auth.log

I was looking to change the date format in which auth.log logs information. I could not find a way to do it. Is there a method to do this? My system uses rsyslog.
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312 views

really basic bootstrap logger - (preferably syslog, cascade to http/raw)

I have a bootstrap shell script that is run as the very first thing when a fresh Linux server is booted up to multi-user mode with networking. Once it is complete, I would like to report the error ...
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11 views

rsyslogd taking up all my drive space, only when the service is started

I have configured rsyslogd to write log files to an external drive. When the service is not started, but the drive is mounted, my disk utilization (by df) is low. As soon as I start rsyslogd, the ...
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22 views

Why rsyslog leaves the last file in spool directory

Suppose I am using a rsyslog remote server (R1) & have a client box (C1). C1 is configured to sync up and use R1 for logging (over port 514; TCP) The spool directory is '/var/log/rsyslog'. Now, ...
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Lightdm and rsyslogd intermittenly consuming 50% of CPU

I'm running Cubieboard3 (CubieTruck) mini pc thats runs Cubian (a derivative of Debian). Sometimes after booting up the CPU got consumed by almost 50%. When I ran top these two processes are ...
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95 views

Rsyslog is losing messages

I am using rsyslog v5.8.11. I found this version number from what rsyslog logs on restart. I am trying to apply rate-limiting in rsyslog but it is of no use. I am still losing messages. In the ...
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50 views

Rsyslog logs retransmitted after log rotation

I have config setup on all my CentOS servers to forward all syslog messages to a Graylog server via rsyslog. In Graylog I have then configured streams to alert on the occurrence of certain message ...
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48 views

Equivalent to syslog-ng program-override option for rsyslog

I would like to know what is the rsyslog equivalent to the program-override option in syslog-ng?
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90 views

Can rsyslogd write to more than one named pipe

If I have the following two lines in the rsyslogd.conf *.* |/var/run/rsyslog/pipe1 *.* |/var/run/rsyslog/pipe2 Will all messages be sent to both pipes? I have two programs that want to inspect ...
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244 views

rsyslog does not stream data to flume

I have a problem with Flume as it is not recognizing the events on console. My configuration file is this: ### Name the components on this agent a1.sources = r1 a1.sinks = k1 a1.channels = c1 ### ...
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124 views

Stopping syslogd also closes /dev/log UNIX domain socket

I am working on a project and from some testing I found out that stopping syslogd daemon also closes /dev/log socket. Is there some other way so that even if syslogd is down, /dev/log socket still ...
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229 views

Seeing SSH debug messages in Terminal/console

I am seeing "debug3: Received SSH2_MSG_IGNORE" appear in the terminal on a RHEL 6 Linux server. I thought maybe rsyslog had a console entry, but it doesn't. sshd_config has logging at AUTHPRIV, and ...