Difference between revisions of "LogAnalyzer Setup"

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Line 8: Line 8:
  
 
===  Software Setup ===
 
===  Software Setup ===
1. Get latest loganalyzer package (http://loganalyzer.adiscon.com/)
+
1. Install rsyslog and PHP mySQL modules
 +
# yum install rsyslog-mysql php-mysql
 +
 
 +
2. Get latest loganalyzer package (http://loganalyzer.adiscon.com/)
  
2. Uncompress and move to standard RedHat/CentOS compatible 3rd party software location (/usr/share)<br>
+
3. Uncompress and move to standard RedHat/CentOS compatible 3rd party software location (/usr/share)<br>
 
NOTE: 4.1.5 is probably not the version being installed, please use the version number being  installed in place of 4.1.5
 
NOTE: 4.1.5 is probably not the version being installed, please use the version number being  installed in place of 4.1.5
 
  # mkdir /tmp/work-syslog ; cd /tmp/work-syslog/
 
  # mkdir /tmp/work-syslog ; cd /tmp/work-syslog/
Line 22: Line 25:
 
  # chown apache.apache /usr/share/loganalyzer-4.1.5/config.php
 
  # chown apache.apache /usr/share/loganalyzer-4.1.5/config.php
  
===  Database Setup ===
+
===  Rsyslog Server Setup ===
Make sure you have the prerequisites in place from above
+
1. set up user and grant proper perms;
1. Install rsyslog and PHP mySQL modules
+
# yum install rsyslog-mysql php-mysql
+
 
+
2. Create tables in mySql<br>
+
Note: this relies on already completing step 2 of Web Interface setup (below)
+
# mysql -p </usr/share/doc/rsyslog-mysql-*/createDB.sql
+
 
+
3. Create a new mySql user and grant proper privs;
+
 
  # mysql -p mysql
 
  # mysql -p mysql
 
  mysql> grant insert on Syslog.* to 'syslog-insert'@'localhost' identified by 'somepwA';
 
  mysql> grant insert on Syslog.* to 'syslog-insert'@'localhost' identified by 'somepwA';
 
  mysql> flush privileges;
 
  mysql> flush privileges;
 
===  Rsyslog Server Setup ===
 
Make sure you have the prerequisites in place from above
 
1. Save a backup of rsyslog.conf<br>
 
# cp -p /etc/rsyslog.conf /etc/rsyslog.conf-20150327
 
  
 
2. Update /etc/rsyslog.conf<br>
 
2. Update /etc/rsyslog.conf<br>
Line 50: Line 40:
 
  *.*      :ommysql:127.0.0.1,Syslog,syslog-insert,somepwA
 
  *.*      :ommysql:127.0.0.1,Syslog,syslog-insert,somepwA
  
3. Restart rsyslog service
+
3. Create database/tables
 +
# mysql -p </usr/share/doc/rsyslog-mysql-*/createDB.sql
 +
 
 +
4. Restart rsyslog service
 
  # service rsyslog restart
 
  # service rsyslog restart
  
Line 68: Line 61:
 
3. enable php
 
3. enable php
 
  # cp -p /etc/httpd/conf.d/php.conf /etc/httpd/conf.d-run/
 
  # cp -p /etc/httpd/conf.d/php.conf /etc/httpd/conf.d-run/
4. start up or restart apache and make sure it starts on boot
+
4. start up or restart apache (and make sure it starts on boot)
 +
ENT 7
 +
# systemctl start httpd
 +
# systemctl enable httpd
 +
BEFORE Ent 7
 
  # service httpd restart
 
  # service httpd restart
 
  # chkconfig httpd on
 
  # chkconfig httpd on
  
 
===  Web Interface mySQL setup ===
 
===  Web Interface mySQL setup ===
1. setup user & permissions
+
1. setup user and permissions
 
  # mysql -p
 
  # mysql -p
  > grant select, update, insert, create, drop, alter on Syslog.* to 'syslog-read'@'localhost' identified by 'somepwB';
+
  mysql> grant select, update, insert, create, drop, alter on Syslog.* to 'syslog-read'@'localhost' identified by 'somepwB';
  > flush privileges;
+
  mysql> flush privileges;
  
 
2. web interface configuration<br>
 
2. web interface configuration<br>
Line 100: Line 97:
  
 
===  Web Interface Fix ===
 
===  Web Interface Fix ===
There was an issue (in older vers), that appeared more than once (possibly due to apache or php settings), where a config was populated but was not usable due to missing values. The following needed to be set in this situation to configure these for the default values<br>
+
There was an issue (in older vers), that appeared more than once (possibly due to apache or php settings), where a config was populated but was not usable due to missing values. The following needed to be set in this situation to configure these settings for their default values<br>
 
1. fix config.php<br>
 
1. fix config.php<br>
 
1a. edit config.php
 
1a. edit config.php
Line 118: Line 115:
 
This rsyslog configuration writes everything to a mySql database, as well as to the standard log files. The OS has the logrotate process to manage the log files, but if you wish to manage or periodically purge the mySql data, you can set up the following cron job (thanks to Michael Meckelein for posting this in a forum):<br>
 
This rsyslog configuration writes everything to a mySql database, as well as to the standard log files. The OS has the logrotate process to manage the log files, but if you wish to manage or periodically purge the mySql data, you can set up the following cron job (thanks to Michael Meckelein for posting this in a forum):<br>
 
NOTE: you may want to setup another user which has delete permissions (like syslog-purge) to do the periodic cleanup for this cron process
 
NOTE: you may want to setup another user which has delete permissions (like syslog-purge) to do the periodic cleanup for this cron process
  mysql -u syslog-read -p somepwA -e “delete from SystemEvents where ReceivedAt < date_add(current_date, interval -28 day)” Syslog
+
  mysql -u syslog-purge -p somepwA -e “delete from SystemEvents where ReceivedAt < date_add(current_date, interval -28 day)” Syslog
  
 
===  Recreating mySQL database ===
 
===  Recreating mySQL database ===
If you have to recreate mySQL data from scratch<br>
+
If you have to recreate mySQL data from scratch (due to corruption, or other issues)<br>
 
1. make sure mysql is down
 
1. make sure mysql is down
 
  # service mysqld stop
 
  # service mysqld stop

Revision as of 16:17, 19 May 2017

Note: this document has been used with the following loganalyzer versions: 3.0.2 (and a few before 3.0.2), 4.1.5

Prerequisites

Rsyslog - any version that supports/includes the mySQL module or has the rsyslog-mysql rpm available
MySQL/MariaDB - See MySQL/MariaDB Setup to make sure you have MySQL or MariaDB set up/running
Apache - any version, but please use something recent, or the version included with a distro that is still receiving updates
PHP - most versions, but please use something recent, or the version included with a distro that is still receiving updates

Software Setup

1. Install rsyslog and PHP mySQL modules

# yum install rsyslog-mysql php-mysql

2. Get latest loganalyzer package (http://loganalyzer.adiscon.com/)

3. Uncompress and move to standard RedHat/CentOS compatible 3rd party software location (/usr/share)
NOTE: 4.1.5 is probably not the version being installed, please use the version number being installed in place of 4.1.5

# mkdir /tmp/work-syslog ; cd /tmp/work-syslog/
# tar xzvf loganalyzer-4.1.5.tar.gz
# mkdir /usr/share/loganalyzer-4.1.5 /usr/share/doc/loganalyzer-4.1.5
# mv loganalyzer-4.1.5/* /usr/share/doc/loganalyzer-4.1.5/
# mv /usr/share/doc/loganalyzer-4.1.5/src/* /usr/share/loganalyzer-4.1.5/
# mv /usr/share/doc/loganalyzer-4.1.5/doc/* /usr/share/doc/loganalyzer-4.1.5/
# rm -rf /usr/share/doc/loganalyzer-4.1.5/doc /usr/share/doc/loganalyzer-4.1.5/src /usr/share/loganalyzer-4.1.5/doc
# touch /usr/share/loganalyzer-4.1.5/config.php
# chown apache.apache /usr/share/loganalyzer-4.1.5/config.php

Rsyslog Server Setup

1. set up user and grant proper perms;

# mysql -p mysql
mysql> grant insert on Syslog.* to 'syslog-insert'@'localhost' identified by 'somepwA';
mysql> flush privileges;

2. Update /etc/rsyslog.conf
Make sure the following is added
Add the following line to end of ModLoad/MODULES section

# enable mySql plugin/module
$ModLoad ommysql

Add the following line to the beginning of the logging/RULES section (before #kern.* line)

# log all to mySql
*.*       :ommysql:127.0.0.1,Syslog,syslog-insert,somepwA

3. Create database/tables

# mysql -p </usr/share/doc/rsyslog-mysql-*/createDB.sql

4. Restart rsyslog service

# service rsyslog restart

Apache Setup

NOTE: this assumes this is on the company image, which creates most of the needed dirs/files/configs)
1. setup doc root
NOTE: syslog1 is the short hostname (hostname -s) of the system you are installing on

# cd /home/httpd/syslog1/
# rm -rf public_html
# ln -s /usr/share/loganalyzer-3.0.2 public_html

2. setup vhost file
add the following to /etc/httpd/conf/vhost-ssl.d/0-syslog1 (hostname -s) after ServerAdmin and before proxy section
Note: enabling the use of a symlink is done for the dir in which the symlink resides

<Directory /home/httpd/syslog1>
   Options FollowSymLinks
</Directory>

3. enable php

# cp -p /etc/httpd/conf.d/php.conf /etc/httpd/conf.d-run/

4. start up or restart apache (and make sure it starts on boot)

ENT 7
# systemctl start httpd
# systemctl enable httpd
BEFORE Ent 7
# service httpd restart
# chkconfig httpd on

Web Interface mySQL setup

1. setup user and permissions

# mysql -p
mysql> grant select, update, insert, create, drop, alter on Syslog.* to 'syslog-read'@'localhost' identified by 'somepwB';
mysql> flush privileges;

2. web interface configuration
2a. go to the new URL (configured in; Web Interface setup, step 3a) in a browser, you will get the following message;

Error, main configuration file is missing!

2b. click 'here' on the following message;

Click here to Install Adiscon LogAnalyzer!

2c. click 'next' on the following page;

Step 1 - Prerequisites

2d. click 'next' on the following page;

Step 2 - Verify File Permissions

2e. click 'next' on the following page;

Step 3 - Basic Configuration

2f. Fill in the following and click 'next';

Source Type: MYSQL Native
Database Name: Syslog
Database Tablename: SystemEvents
Database User: syslog-read
Database Password: somepwB

2g. Click 'here' on the following message;

Step 8 - Done
Click here to go to your installation.

Web Interface Fix

There was an issue (in older vers), that appeared more than once (possibly due to apache or php settings), where a config was populated but was not usable due to missing values. The following needed to be set in this situation to configure these settings for their default values
1. fix config.php
1a. edit config.php

# vi /usr/share/loganalyzer-3.0.2/config.php

1b. set ViewMessageCharacterLimit

$CFG['ViewMessageCharacterLimit'] = 80;

1c. set ViewStringCharacterLimit

$CFG['ViewStringCharacterLimit'] = 30;

1d. set ViewEntriesPerPage

$CFG['ViewEntriesPerPage'] = 50;

1e. set ViewEnableDetailPopups

$CFG['ViewEnableDetailPopups'] = 1;

1f. set EnableIPAddressResolve

$CFG['EnableIPAddressResolve'] = 1;

Purging mySQL database

This rsyslog configuration writes everything to a mySql database, as well as to the standard log files. The OS has the logrotate process to manage the log files, but if you wish to manage or periodically purge the mySql data, you can set up the following cron job (thanks to Michael Meckelein for posting this in a forum):
NOTE: you may want to setup another user which has delete permissions (like syslog-purge) to do the periodic cleanup for this cron process

mysql -u syslog-purge -p somepwA -e “delete from SystemEvents where ReceivedAt < date_add(current_date, interval -28 day)” Syslog

Recreating mySQL database

If you have to recreate mySQL data from scratch (due to corruption, or other issues)
1. make sure mysql is down

# service mysqld stop

2. wipe out all the data (make sure this is what you want to do, otherwise google how to repair innodb data)

# rm -rf /var/lib/mysql/* /var/lib/mysql/.my*

3. rebuild mysql & loganalyzer tables
Rerun the following steps from above

Server mySQL Setup; steps 2-4
Web Interface mySQL setup; step 1

Client rsyslog Setup

1. /etc/rsyslog.conf, add @sys.log.server.ip lines to logging section, ex;

# Log all kernel messages to the console.
# Logging much else clutters up the screen.
#kern.*                                                 /dev/console

# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;authpriv.none;cron.none                /var/log/messages

# The authpriv file has restricted access.
authpriv.*                                              /var/log/secure

# Log all the mail messages in one place.
mail.*                                                  -/var/log/maillog

# Log cron stuff
cron.*                                                  /var/log/cron

# Everybody gets emergency messages
*.emerg                                                 *

# Save news errors of level crit and higher in a special file.
uucp,news.crit                                          /var/log/spooler

# Save boot messages also to boot.log
local7.*                                                /var/log/boot.log

# centralized logging
*.* @172.160.135.160:514

2. Restart rsyslog service

# service rsyslog restart