Install OS

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Install

Sample for Debian 8:

  • Default installation
    • Choose package Web server
    • Choose package SSh server

Packages

MySQL

apt-get install mysql-server-5.5

Perl Core

core modules

apt-get install libnet-snmp-perl libxml-simple-perl libmail-sendmail-perl
libnet-whois-raw-perl

for monitoring purposes:

apt-get install nagios-plugins-standard

other

 apt-get install libdatetime-perl

Apache Perl CGI

apt-get install libapache2-mod-fcgid libcgi-fast-perl 
apt-get install libcgi-pm-perl libcgi-session-perl 
apt-get install libfcgi-perl libfcgi0ldbl


Enable CGI

a2enmod cgi

Apache additional

apt-get install libnet-snmp-perl libxml-simple-perl


SUDO

Sudo is required to run commands from apache

apt-get install sudo
  • visudo -f /etc/sudoers
www-data ALL=NOPASSWD: /sbin/ipvsadm
www-data ALL=NOPASSWD: /usr/bin/nmap
www-data ALL=NOPASSWD: /var/wwwl/mylvs/repl.sh
www-data ALL=NOPASSWD: /usr/local/nagios/libexec/check_nrpe
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackup.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackupcomment.sh
www-data ALL=NOPASSWD: /usr/bin/mysqldump
www-data ALL=NOPASSWD: /usr/bin/mysql
www-data ALL=NOPASSWD: /bin/echo
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackup.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkrestore.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/reboot.sh


Note: The above commands represents all possible myLVS functions even if the scripts are not setup at this time.


Permissions

=> make me look nice Make sure to have this:

root@mylvs01:/var/www/mylvs# ls -all
total 124
drwxr-xr-x 6 www-data root  4096 Aug 22 14:14 .
drwxr-xr-x 4 root     root  4096 Jun 12 14:48 ..
drwxr-xr-x 2 www-data root  4096 Aug 22 15:27 backup
-rw-r--r-- 1 www-data root   229 Feb  9  2015 LEGAL
-rwxr-xr-x 1 root     demo  3828 Aug 18 13:25 mylvsinit.pl
-rwxr-xr-x 1 root     demo 92370 Aug 18 13:30 mylvsmon.pl
drwxr-xr-x 2 www-data root  4096 Aug 22 14:59 scripts
drwxr-xr-x 4 www-data root  4096 Feb  9  2015 ws
drwxr-xr-x 4 www-data root  4096 Aug 22 14:10 wwwroot
root@mylvs01:/var/www/mylvs#

Please run the following to set permissions for www-data:

root@mylvs01:# chown www-data /var/www/mylvs -R


Main configuration

  • SQL related settings
Element Attribute Description
SQLServer Address SQL Server address
SQLServer Database Database name
SQLServer User Username
SQLServer Password Plain password
SQLServerBackup Address SQL Backup Server address,
only used within an HA environment.
SQLServerBackup Database (HA) Backup Database name
SQLServerBackup User (HA) Backup Username
SQLServerBackup Password (HA) Backup Plain password
SQLServerBackup ReplCommand Command to be used when changes occur
SQLConfigBackup Path Path to the helper scripts
SQLConfigBackup ResoreApp Name of the script to restore the sql data
SQLConfigBackup BackupApp Name of the script to backup the sql data
  • LVS
Element Attribute Description
LVS Command Command path and name of ipvsadm
root@mylvs01:/# cat /etc/mylvs/mylvs.conf.xml
<?xml version="1.0"?>
<CONFIG>
  <SQLServer Address="127.0.0.1" Database="mylvs" User="mylvsuser" Password="demo" />
  <SQLServerBackup Enabled="0" Address="" Database="" User="" Password="" ReplCommand="no-sample-available-yet" />
  <SQLConfigBackup Path="/var/www/mylvs/backup/" RestoreApp="/var/www/mylvs/scripts/mkrestore.sh" BackupApp="/var/www/mylvs/scripts/mkbackup.sh"/>
  <LVS Command="/usr/bin/sudo /sbin/ipvsadm"  />
  <ShowAmount ActiveWarning="200" InActiveWarning="2000" HTTP_ERR="120" HTTP_WARN="80" MaxConCount="1000"/>
  <Operation WebSimulate="0" MonSimulate="0"/>
  <Information host="/usr/bin/sudo /usr/bin/host" nmap="/usr/bin/sudo /usr/bin/nmap -sS -O -v" />
  <Operator Mailserver="mail.mylvs.com" Mailfrom="lvsmon@mylvs.com" MailTo="postmaster@mylvs.com" MailCC="anybody@domain.com" MailBCC=""/>
  <Maintenance FileAge="5" SQLAge="5"/>
  <Modules Path="/usr/local/lvs/wwwroot/modules/"/>
  <StatusView SupressedAddress=""/>
  <View HTMLLVSOutput="0"/>
  <Log Name="mylvslog.log" Path="/var/log/mylvs/" gzip="/bin/gzip" Days="24"/>
  <Logo Path="/images/Linux_Logo.gif" />
</CONFIG>