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Rsyslog Mysql Loganalyzer Log Web: Learn How to Configure and Install this Powerful Tool



LogAnalyzer is a web based program that allows you to view event messages from a syslog source within your web browser. Rsyslog is a drop in replacement for the syslog daemon that among other things allows syslog messages to be saved in a MySQL database. Combining these two great programs and directing other network devices to forward syslog messages to a central server allows for a very powerful solution for searching and archiving event messages that occur throughout your network environment. In this example I will install rsyslog on a CentOS Linux 5.5 server to aggregate and collect syslog messages and configure LogAnalyzer on the same server to allow for a user friendly interface for viewing and searching through these messages.




Rsyslog Mysql Loganalyzer Log Web




Rsyslog on the client is optional, if you wanted you could use standard syslog for either the server or the client. Rsyslog on the client will give you several advantages, however. It will use TCP to send messages to the rsyslog server for more reliable delivery. It can also spool messages locally if the rsyslog server is down, and send the non-transmitted messages when the server comes back online.


Heya Techkaki,No you should not. I can confirm that you can use syslogd which comes centos.Its just a matter of making sure the rsyslog is the server to which your sending your syslogs to.


i looking forward with your new tutorial about rsyslog. In your new tutorial, if can, please provide more example on how to logs remote machines logs to rsyslog server. For example, logs windows logs, firewall logs, centos logs, wifi logs and debian logs.


I am running Ubuntu 10.10 on some of my client PCs and it looks like rsyslog is installed by default. The configuration should basically be the same, on the rsyslog server the best option is to uncomment the following directives in the /etc/rsyslog.conf file:


I have configured rsyslog server and snare agent for windows system but following fields are missing in log analyzerEvent Type, Event Source, Event ID and Event User. Please guide me, how resolve this problem.


I have configured Rsyslog with RELP and Log analyzer, now facing problem in eventlog feild veiw there are some fields are missing like eventlog type, event user, source event and event Id, can anyone help in this regards, here is my rsyslog.conf file,


# /etc/rsyslog.conf Configuration file for rsyslog.## For more information see# /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html## Default logging rules can be found in /etc/rsyslog.d/50-default.conf


# Buffering stuff:$WorkDirectory /var/rsyslog/work # default location for work (spool) files$ActionQueueType LinkedList # use asynchronous processing$ActionQueueFileName dbq # set file name, also enables disk mode$ActionResumeRetryCount -1 # infinite retries on insert failure


One thing you may want to try is test sending your Windows logs to a regular text file on your rsyslog server and see if the missing fields show up in there. There is a possibility that there is an incompatibility between how rsyslog is saving the messages into MySQL and how Snare is formatting the messages. Unfortunately I may be of limited help because I am no longer using Snare for my Windows syslog client, currently I am using the Datagram SyslogAgent:


Its a great article, I was able to setup rsyslog and log analyer,I have 2 questions:1. How can I configure loganalyzer to populate by reading multiple log files located under different location.2. I have cisco switches as client, I need to point them to log server. I am not sure whether I can install rsyslog package on those switches, any idea on this ??/


I am looking at rsyslog which is fast syslog system and Loganalyzer as an upfront web GUI for those logs. The Loganalyzer application offers searching of various syslogs, all of which is open source and available to download. In this guide I will go through the steps to get these two applications to work together and in the end of this tutorial we should have a working syslog system ready to take logs! The operating system I am using is the latest CentOS 6.5 minimal. Let's get started.


Also note that rsyslog logs everything it sees to a log folder by default as well. If you are using LogAnalyzer to view logs like in our example we are storing those logs in a MySQL database as well. Depending on how much logging you have you may either want to disable this and have LogAnalyzer do it all or setup a cron job to drop these once in a while.


To complete the install of LogAnalyzer we have to following the prompts on the web. Browse to -server-ip-address/loganalyzer You should get an error page like below. Select the here link to start the install.


HI Frank, I had same issue. I have followed the guide, of course, modified it to our needs. We have an issue on CentOS7 because of SElinux. Here is what i did: chown apache:apache -R /var/www/html/loganalyzer/ cd /var/www/html/loganalyzer/ find . -type f -exec chmod 0644 \; find . -type d -exec chmod 0755 \; chcon -t httpd_sys_content_t /var/www/html/loganalyzer -R chcon -t httpd_sys_rw_content_t /var/www/html/loganalyzer -R In my case I allowed to Apache write permission for full folder.


Hi! First congrats to this manual, it is really nice. BUT I'm facing a little problem (BUG???)on CentOS 7. Everything works, I use the same versions but after I execute the configure.sh, and open the loganalyzer gui, the second step fails with: "file './config.php'" is not writable. I made chmod 666/777 apache restart, selinux disable, but nothing happens. It keep says, that the file is not writable. Actually the file is: -rw-rw-rw-. 1 root root 0 30. Sep 19:33 config.php Could you please help me to finish this install? Thank you in advance and best regards


This error is often due to wrong syntax in the DBTableName field. To fix it you need to edit the /var/www/html/loganalyzer/config.php file and check if the DBTableName value is written with the correct capital letters.


Im setting up a centralized rsyslog server using a Raspberry Pi with LogAnalyzer web frontend to view the logs. Everything is setup and working except the parsing of fields into the MySQL database. As you can see in the attached image, the ProcessID column is not being populated, and its instead being stuck onto the end of the contents of the Syslogtag column.


Once the LAMP stack is installed and setup, create LogAnalyzer database and database user. This step can be made simple by installing rsyslog-mysql package which provides a sample Rsyslog MySQL schema which can be just imported into MySQL/MariaDB server.To install rsyslog-mysql package, run the command below;dnf install rsyslog-mysql -yOnce the installation is done, import Rsyslog MySQL database schema, /usr/share/doc/rsyslog/mysql-createDB.sql, into MySQL/MariaDB.


Check available databases;show databases;+--------------------+ Database +--------------------+ Syslog information_schema mysql performance_schema +--------------------+4 rows in set (0.001 sec)Replace the user and its password accordingly.grant all on Syslog.* to [email protected] identified by '[email protected]';Reload the privileges tables and quit the database.


To begin with, configure Rsyslog to enable UDP and TCP syslog reception. This can be done by commenting out (removing comments, #) at the beginning of the following highlighted lines;...# Provides UDP syslog reception# for parameters see module(load="imudp")input(type="imudp" port="514")...If you also want to receive logs via TCP, simply uncomment the following highlighted lines.if(typeof ez_ad_units!='undefined')ez_ad_units.push([[336,280],'kifarunix_com-large-mobile-banner-1','ezslot_10',122,'0','0']);__ez_fad_position('div-gpt-ad-kifarunix_com-large-mobile-banner-1-0');...# Provides TCP syslog reception# for parameters see module(load="imtcp")input(type="imtcp" port="514")Next, enable load the Rsyslog MySQL module to enable you to forward logs into MySQL/MariaDB database. This can be done by the use of ommysql Rsyslog module as shown below. See the highlighted lines;if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'kifarunix_com-large-mobile-banner-2','ezslot_14',110,'0','0']);__ez_fad_position('div-gpt-ad-kifarunix_com-large-mobile-banner-2-0');


Be sure to replace the server, serverport, database name, database user and password accordingly....#### MODULES ####module(load="imuxsock" # provides support for local system logging (e.g. via logger command) SysSock.Use="off") # Turn off message reception via local log socket; # local messages are retrieved through imjournal now.module(load="imjournal" # provides access to the systemd journal StateFile="imjournal.state") # File to store the position in the journal#module(load="imklog") # reads kernel messages (the same are read from journald)#module(load"immark") # provides --MARK-- message capability# Enable MySQL Loggingmodule(load="ommysql")action(type="ommysql" server="localhost" serverport="3306" db="Syslog" uid="logadmin" pwd="[email protected]")...Rsyslog is now ready to receive logs and forward them to MySQL database. However, you might need to restrict log forwarding to Rsyslog using the $AllowedSender parameter.This parameter takes the format;


Hence, to allow specific servers to send logs to Rsyslog server, you would simply add a line like as shown below under the ### GLOBAL DIRECTIVES ### section.$AllowedSender UDP, 192.168.56.0/24, [::1]/128, *.kifarunix-demo.comTo define servers allowed for TCP syslog reception;$AllowedSender TCP, 192.168.56.0/24, [::1]/128, servera.kifarunix-demo.comBasic Rsyslog configuration is done. Save the configuration and restart rsyslog;if(typeof ez_ad_units!='undefined')ez_ad_units.push([[336,280],'kifarunix_com-leader-2','ezslot_17',111,'0','0']);__ez_fad_position('div-gpt-ad-kifarunix_com-leader-2-0'); 2ff7e9595c


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