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When the excel reader is run on PHP 5.3, below mentioned deprecated warning messages gets shown.

i) Assigning the return value of new by reference is deprecated

Remove & from the line below

$this->_ole =& new OLERead();

and have

$this->_ole = new OLERead();

instead.

ii) Function split() is deprecated

Function split() is deprecated and we can use explode() instead of that.

$parts = split(“;”,$format);

change it to

$parts = explode(“;”,$format);

Dedicated or Virtual Server Options
Monthly or yearly rental charge
Pre-configured hosts

Rackspace

Linode

UK2

Solutions that seemed to have worked for me

i) Host name: Try adding ftp://www.mysite.com and set the port to 21
ii) User name: Try typing username@domain.com instead of just the user name of the ftp user

Originally developed for Linux, Asterisk now runs on a variety of operating systems including Solaris, Windows and MacOS.

Environment setup


Asterisk server is configured on a HP dx5150 AMD Athlon, 512 MB RAM, 40 GB machine running CentOS.
Softphones used in the tutorial: Zoiper is used for IAX2 communication and X-Lite for SIP. Both the softphones are configured on Windows XP.

Asterisk: Step by Step
1) Download the asterisk software from asterisk.org. We will be going with the base build and not use other softwares like AsteriskNow or PBXinaFlash for the moment.

2) Setup asterisk repo to ease future upgrades to asterisk
$ cd /etc
$ touch asterisk.repo
$ vi asterisk.repo

[asterisk-tested]
name=CentOS-$releasever – Asterisk – Tested
baseurl=http://packages.asterisk.org/centos/$releasever/tested/$basearch/
enabled=0
gpgcheck=0
#gpgkey=http://packages.asterisk.org/RPM-GPG-KEY-Digium

[asterisk-current]
name=CentOS-$releasever – Asterisk – Current
baseurl=http://packages.asterisk.org/centos/$releasever/current/$basearch/
enabled=1
gpgcheck=0
#gpgkey=http://packages.asterisk.org/RPM-GPG-KEY-Digium

3) Install asterisk on CentOS and start up asterisk
$ yum install asterisk16 asterisk16-configs asterisk16-voicemail libpri

[Source: Check asterisk.org]

To enable auto start of asterisk
$ chkconfig asterisk on

Start/stop/restart asterisk using the commands
$ service asterisk start
$ /etc/init.d/asterisk restart
$ service asterisk stop

To test asterisk service type
$ asterisk -r

4) Register with a VOIP Service provider
To search for the VOIP provider you can use
voip-info.org which has an extensive list of service proivders categorized by region based on different
market segmentation.

Once you have registered with a VOIP Service provider, they will give you
IAX2/SIP Account (your phone number) : NNNNNNNNNN
Account password : PPPPPPPP
IAX2/SIP Server name : myiax.voipprovider.org

So far, we have detailed the environment, setup asterisk on a CentOS server and have registered for an account with a VOIP provider. In the next tutorial, we will see how to configure asterisk settings and to setup an IAX extension for a softphone (soft client) running on windows XP.

Best resources on the internet
asterisk.org http://www.asterisk.org/node
voip-info.org http://www.voip-info.org
asteriskguru.com http://www.asteriskguru.com/

Possible Scenarios
i) Server load balancing
ii) Moving web sites between servers

Find where the SSL certificates, private keys are installed in the old server and gzip the certs
$ tar -zxcf /tmp/crt.tar.gz /etc/ssl/certs
$ tar -zxcf /tmp/priv.tar.gz /etc/ssl/private

In the new server, extract the certificates and keys to its respective folder location. Edit httpd.conf file and add the following lines

SSLEngine on
SSLCertificateFile /etc/ssl/certs/example.com.crt
SSLCertificateKeyFile /etc/ssl/private/example.com.key
SSLCACertificateFile /etc/ssl/certs/example.com.cabundle
CustomLog /usr/local/apache/domlogs/exampleuser-ssl_log combined

Sample virtual host configuration setting

<VirtualHost xxx.xxx.xxx.xxx:443>
    ServerName subdomain.example.com
    ServerAlias www.subdomain.example.com
    DocumentRoot /home/emaple/public_html
    ScriptAlias /cgi-bin/ /home/example/public_html/cgi-bin/
    SSLEngine on
    SSLCertificateFile /etc/ssl/certs/example.com.crt
    SSLCertificateKeyFile /etc/ssl/private/example.com.key
   SSLCACertificateFile /etc/ssl/certs/example.com.cabundle
  CustomLog /usr/local/apache/domlogs/exampleuser-ssl_log combined
    SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown
    <Directory "/home/example.com/public_html/cgi-bin">
        SSLOptions +StdEnvVars
    </Directory>

    # To customize this VirtualHost use an include file at the following location
    # Include "/usr/local/apache/conf/userdata/ssl/2/exampleuser/example.com/*.conf"
</VirtualHost>

Restart apache
$ /etc/init.d/httpd restart
(or)
$ /sbin/service httpd restart

Note: Once moving the SSL certificates to the new server, you can also use WHM or CPanel to configure the certs.

Before editing the file check that path settings for sftp-server
$ locate sftp-server
/usr/libexec/openssh/sftp-server

Check for the existence of following line in sshd_config
Subsystem sftp /usr/libexec/openssh/sftp-server

Incorrect path settings to sftp server causes the above message. Once the path is set correctly, you will no longer see that error message

$ /etc/init.d/sshd restart
to restart the ssh services.

Other such error message related to the above scenario
File transfer server could not be started or it exited unexpectedly.
Exit value 0 was returned.

To run a perl script with warnings, type -w with the shebang as in
#!/usr/bin/perl -w
print “Content-type: text/html\n\n”;
print “Hello World\n”;

Check if you have the following line in the program
print “Content-type: text/html\n\n”;
This will output the text to the browser from the server.

Print error messages to the browser using
use CGI::Carp qw(fatalsToBrowser);

The other way is to use the print command to debug your program.

Common error messages
» The specified CGI application misbehaved by not returning a complete set of HTTP headers.
» Can’t locate missing-file.pm in @INC (@INC contains: ….. )

Differential backup
Differential backup is the process of backing up data that has changed since the last FULL backup.
Requires file maintenance as the backup file will be of similar size or larger than its previous backup
Longer backup time than incremental backup
Faster restoration than incremental backup

Incremental backup
Incremental backup is the process of backing up data that has changed since the last Full, Incremental or Differential backup
Takes lesser backup time as it will have small data to archive
Takes longer restoration time

Mirror backup
Mirror backup is similar to full backup and is a direct copy of the files/folders
Files are not compressed in zip files and are not protected with password. They remain the mirror or exact copy of the source.

To convert mp3 to audio (cda) format, all you need to do is to select InfraRecorder » choose Audio Disc » drag the MP3 file to file list » Click Burn the current compilation to disc

Using InfraRecorder, you can also compile a CD/DVD, record disc images (ISO, BIN, CUE), record dual layer DVD’s, fixate discs and many such features.

You can check InfraRecorder at http://infrarecorder.org

Create the database (test-database) in the testing environment and identify the location of the .gz or .sql file.

If the mysql dump was a .gz file, you need to gunzip to uncompress the file by typing
$ gunzip mysqldump.sql.gz

This will uncompress the .gz file and will just store mysqldump.sql in the same location.

Type the following command to import sql data file:

$ mysql -u username -p -h localhost test-database < mysqldump.sql
password: _

For the hostname part, you need to give the respective hostname of the mysql server depending on how it was configured (some times it may be just an IP, some times it may be an IP with port number)