Technical Solution

The main purpose of a domain-name is to make the website simpler to access. It is easier for users to remember domain names rather than having to remember IP addresses of sites. But do you know that it would be quite useful to remember IPs when the domain name has expired? How would you access a site whose domain name has expired? Most people have no idea about this. This article is here to help.

As a web developer, we sometimes may want to export a specific table from a MySQL database. It can be particularly helpful when we are going to apply some changes to a table that is part of a large database and we are interested in backing up that specific table only, rather that whole huge database. To create a backup (also called dump) of the a table use this command: mysqldump -u username -p db_name table_name | gzip > db_name.table_name.sql.gzThis will create the backup/dump for the table in the file in compressed format.

QR code is a two dimensional bar code having information which can be recognized and interpreted through electronic signals only. QR code is displayed in square pattern with dark dots in white background.

We are happy to announce that we will be conducting a Drupal bugathon at our office at Kakkanad on the 20th of October, 2012. If you are a Drupal developer and you would like to get some guidance on how to contribute to Drupal you are welcome to join us.

The command "setfacl" refers to Set File Access Control Lists and "getfacl" refers to Get File Access Control List. Each file and directory in a Linux filesystem is created with a specific set of file permissions for its access. Each user can have different set of file access permissions. The permissions can be set using the setfacl utility. In order to know the access permissions of a file or directory we use getfacl. The getfacl command displays the access permissions of files and directories with file name, owner, group and the ACL's(Access Control List). When we create a directory it is created with a default set of access permissions and by using getfacl we will be able to see the access rights.

There are a few common performance mistake that are commonly found in most Drupal sites. Here are the list of the Top 10 Performance Mistakes in Drupal that can easily be addressed by a simple change in settings or the addition of a module. The easiest way to solve performance problems in Drupal would be to prevent them in the first place. Contact us for a free consultation on how to build your Drupal website right.

”rsync” is an open source utility in Linux/Unix primarily used for synchronising files/directories over the networks. You can also use it to backup/copy folders between machines. It is particularly made use of to while administering servers connected to the internet. The term “rsync” itself refers to “remote-synchronise”.

On a WHM/cpanel VPS server the httpd.conf is automatically generated from cpanel scripts based on templates and you are not supposed to change this file directly. Any changes that you make in the httpd.conf file will be lost when cpanel re-generates the file or when cpanel is updated. This is an inconvenience especially when your application requires you to make virtualhost modifications in the configuration. However cpanel provides an alternative way to edit the httpd.conf file.

When you untar large tar files even as the root user on your VPS you might run into the error "Cannot change ownership to uid NNN, gid NNN: Disk quota exceeded". This is because the extracted files from the tar archive is being attempted to be created with the original UID and GID as on the system where the tar archive was created. Now if the UID is not already present on the new VPS or if the UID corresponds to a user without a lot of disc quota available the above error will be triggered preventing extraction of the tar.gz archive.