I came across this error while taking the database dump of a database. The database was originally created in another server and transferred to my server after long. When I tried to take a database dump as a part of my backup script, I came across this error.

Basically this error is caused by a definer which was created in the previous server but is not present in the new server. The easiest way to get past this error is to go to the original dump file and search for ‘definer’ in it.

If found, modify it to reflect the root user or database user in your new server.

Fdisk is undoubtedly the most favorite disk partitioning tool for most linux savy peope. However fdisk has limitations when it comes to disk with space more than 2T. Redhat recommends parted now, starting from RHEL6. fdisk doesnt understand GUID partition table (GPT) and it is not suited for disk bigger than 2T. You will have to use a more advanced tool “parted” for that.

Let us see how a new 3T disk can be partitioned using parted command. I will be showing just 1 partition here, taking up all space rest can be done the same way. Normally, the disk will be labelled msdos, and you need to label it as GPT.

The list command will show you the current disks and their details.

I was trying to setup a php script to send mail with SMTP Authentication. The script was ready, but when executed in a browser, it displayed the following error.

The problem appears because the php pear package Net_SMTP is not present in the server. You can install it in two way.

After that, execute the script again and...