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Working with Linux, Apache, MySQL, and PHP For Software Deployment

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It was created by a modern bachelors degree in computer system science earner and is the most simplified resource out there right now to find out PHP rapid.

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So rapidly in fact that the author guarantees that you’ll be coding at a great level utilizing it inside of 17 hrs to coincide with the 17 chapters of the guide so you can try out it possibility totally free and put on your own on the quickly track proper absent.

Linux, Apache, MySQL, and PHP can all be employed to generate software package which runs on a website server, and hence eliminates the need to have for client software installations on a regional computer system. What this means is that the server has both equally the database front conclude, the database back finish, and the customer front finish all in one particular bundle. Upgrades to software package based mostly on Linux, Apache, MySQL, and PHP (LAMP) can be executed with quite very little time concerned at all, seeing that all of the necessary computer software will only have to be put in an individual time, on an individual computer. In addition, LAMP application could really readily be made offered to persons who are outside of a primary office. These staff would basically have to link to a company’s VPN to operate the supposed computer software.

This tutorial will cover LAMP set up on a stand by yourself server, which will be capable to operate computer software made for a LAMP setting. This tutorial will also cover standard MySQL syntax, so that a server administrator can troubleshoot troubles within just a distinct application. This tutorial already assumes that a functioning set up of Linux is out there, and that networking is by now setup on the functioning set up of Linux. For the sake of this tutorial, all of the LAMP components will be put in from resource code when necessary, and from binary packages when ideal. This tutorial will need to be applicable across all distributions of Linux. The initial action is to successfully set up Apache.

Apache Installation and Configuration

Apache can be downloaded from apache.org. In this instance, Apache model one.3.31 is employed. Initially, generate a directory on the root of your file system termed src.

mkdir /src

Future, move the Apache software to the /src directory, and extract it.

mv apache_1.three.31.tar.gz /src
tar -xvzf apache_one.three.31.tar.gz

Once Apache is extracted to the /src/apache_1.three.31 directory (version numbering will likely differ), modify to that directory, and configure the Apache HTTP server.

cd apache_one.3.31
./configure –prefix=/usr/neighborhood/apache –enable-module=so
make
make set up

You will absolutely will need the Gnu C Compiler put in (GCC), and Gnu Make (make) in buy to set up Apache. This compilation of Apache will consider really some time, the configure options that have been passed to Apache inform the configuration script to set up Apache to the /usr/community/apache directory, and to allow module support in Apache.

Nokia N900 joins hands with Linux

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Nokia N900 is a Linux based mobile phone. This is the first time Nokia has manufactured a Linux based phone. It uses Maemo 5 operating system to run on. This phone has a handsome body with a wholesome structure. It feels good to hole this handset in hand. it can also be very easily be carried around in the pocket. It is a slider phone which has a sliding QWERTY keyboard. The controls have been placed perfectly on the body. There are no physical buttons on the front of the screen, there is only the touch screen surrounded by a glossy border.

The Nokia N900 is generally operated in the landscape view, but to support video calling the screen can be set to portrait view as well. The display is brilliant and produces sharp and clear images. The resolution of the screen is 800 by 400 pixels. The touch screen is resistive in nature. It is very responsive and can be very comfortably be operated by fingers. The slider keyboard is also very comfortable to use. It has three rows to fit in all the keys. There also many shortcuts from the keyboard which make the functionality of the keyboard very easy.

The Nokia N900 supports flawless quality in terms of connectivity. There are many different types of networks that are present in this phone including Wi-Fi, 3G and GPRS. It is also very easy to switch between these networks especially when a hotspot is near by. Another good feature is the integration of contacts with Google Talk and Skype. One can easily do the Skype calling from the phonebook. This phone provides one of the best experiences of using internet on a phone.

It has a very smooth flowing Internet browser and certainly claims the title of best Internet phone. One can also zoom in the web pages and can also watch videos on YouTube. The Nokia N900 is also having great multimedia features. It has a five megapixel camera which is capable of taking very high quality still images and videos as well. It is also very easy to share, email or upload multiple photographs from this phone.

Mount Command Does Not Work in Linux Due to File System Corruption

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Linux is a popular open source UNIX-like operating system that organizes all your files in a tree structure. All the files are rooted at ‘/’ or root directory. In order to attach any file system of other drive to file tree, you are required to mount the drive. You can mount Linux drive using mount command. However, in some cases, the mount command fails to mount the drive and makes it ready for use. It makes your significant data inaccessible and causes serious data loss situations. To recover Linux data in such cases, Linux data recovery becomes need of hour.

You might fail to mount a Linux hard drive is the file system of the disk is corrupt. File system corruption may take place due to numerous reasons, ranging from virus infection to hard drive crash. In a practical scenario of this problem, you may encounter the below error message when you try to mount a Linux hard drive

Using mount command: “mount: you must specify the filesystem type” The error occurs every time when you run the mount command. It makes the drive unusable and put you in need of Linux recovery.

Root of the problem You may run across this problem due to any of the following reasons- Improper editing of the fstab file. Linux uses this file to list out the available hard drives and volumes. The mount command uses this file to determine required

Options. The disk volume does not contain any file system. The hard drive file system is damaged. Superblock is faulty and cannot be accessed by the operating system.

Solution Use any of the below options to perform Data recovery Linux in such cases- Use -t parameter with the mount command. Properly specify all the hard drive entries in the fstab file. It enables mount command to see all the available devices and options. Re-create the file system using mkfs.ext3 /dev/hdXX command. Use fsck command to fix file system consistency issues.

If you are still unable to recover Linux data using any of the above methods, you are required to opt for Linux data recovery software. The Ext2 Recovery applications are capable of thoroughly scanning entire drive and extract data from it. Linux recovery are totally safe and easy to use.

Converting Linux File System From Ext3 To Ext4

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The Ext4 (Fourth Extended File System) is an advanced and effective journaling file system that is developed as successor of Ext3 file system. It provides high performance and removes 64-bit storage limits of earlier file systems. The file system supports backward compatibility with the Ext3 and Ext2 file systems. Thus it is possible to mount Ext2 and Ext3 file system as Ext4. To gain benefit of these advanced features, you need to migrate file system from Ext3 to Ext4. Before migrating the file system, you should create full backup of your data as failure of this process may lead to data loss and require Linux Data Recovery to be sorted out.

Converting a non-root file system

If you are converting Ext3 file system, which can be unmounted, this is quite simple process. Follow underwritten steps for conversion:

Unmount the volume.
Run file system check using fsck.ext3 command to make sure that it is in sane situation.
Enable new features of Ext4 on file system using tune2fs command.
Run fsck.ext4 command. It will find errors that are usual. Let the command fix them.
Edit /etc/fstab file to make it Ext4 in place of Ext3 file system for /home.
Mount your new file system.

Converting root file system

Converting the root file system is quite tricky as you won’t be able to unmount it because your computer is running on it. Go through below steps to convert your root file system:
First thing is to change /etc/fstab file as Ext4 in place of Ext3 for root volume.
Remount the root file system as read-only.
Check your file system using fsck.ext3 command. It will then restart your system.
Enable all Ext4 features on root file system.
Check your root file system for errors using fsck.ext4 command.

Though, it is a good idea to convert your file system from Ext3 to Ext4, but in case if the process fails and you do not have complete backup of your valuable data, you might encounter serious data loss and need to carry out Data Recovery Linux.

Recovery is best possible using third party Linux Recovery Software. The applications recovers your data in most of the data loss situations, without demanding sound and prior technical skills from you. With read-only and non-destructive conduct, Linux Data Recovery software are absolute safe to use.

Stellar Phoenix Linux Data Recovery is the most efficient solution to handle all types of data loss situations on your Linux system. It supports recovery from Ext4, Ext3, Ext2 and ReiserFS file system volumes. The software is compatible with all major distributions of Linux including Debian, RedHat, Fedora and Ubuntu.

How to Fix Unable to resolve UUID Error in Linux

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Modern distributions of Linux operating systems use UUID (Universally Unique Identifier) to uniquely identify hard drive or other data storage devices, in place of the conventional block names like /dev/sdb and /dev/hda1. It is due to the fact that UUID is never modified, even if the hard drive is switched. It is stable as compared to traditional methods, and prevents system failure and need of Linux Data Recovery solutions.

UUID is a 128-bit string that is used for making the Linux hard disk management simple. If you look at /etc/fstab file in your Linux computer, you find the entry in the following format, in place of the familiar hard drive designation:

UUID=62fa5eac-3df4-448d-a576-916dd5b432f2

In comparison to the traditional hard drive identification techniques, UUID is quite easy and reliable. For instance, in the traditional Linux systems, when you try to insert a new hard drive in a system that already has two hard drives, the drive is inserted between existing drives. At this point, ‘mount’ command attempts to mount the newly inserted drives as home.

In such situation, you need to log on as a single user for resolving the problem. However, when you log on, it gives you some error message and in the worst case scenario, you may encounter kernel panic. You can fix this issue using UUID.

UUID creates a unique entry for each hard disk volume in the Linux file system tree. Using UUID offers easy management of your Linux hard disks and creates less complication while adding or removing the disk.

Although, UUID is quite useful and it provides various advanced features, but it also has some faults. Sometimes, you may encounter the below error message when you attempt to access a UUID based Linux hard drive:

-Fsck 1.40.8 (13-Mar-200 fsck.ext3: Unable to resolve ‘UUID=d8533154-cef1-4cce-a823-9f3f74aab65b’-

After the above error message, you can not access the particular hard drive. All the data stored on your hard drive become inaccessible and you come across critical data loss. At this point, Linux Recovery Software come for your rescue.

The applications perform absolute Data recovery linux in most of the logical data loss situations, using advanced scanning algorithms. These tools enable you to perform Linux Recovery on your own as they have self-descriptive and simple graphical user interface. With read-only and non-destructive behavior, the applications are completely safe to use.

Stellar Phoenix Linux Data Recovery is the most comprehensive application for perfect recovery of all lost data. The software is compatible with all Linux distributions including SUSE, Debian, Red Hat, and Fedora. It recovers lost data from Ext4, Ext3, Ext2, FAT32, FAT16, and FAT12 file system volumes.