What is Openstack? A Quick OpenStack Tutorial
OpenStack – History and Introduction
OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a data center. All of the above components are managed through a dashboard which gives administrators control while empowering their users to provision …Read More
NTT Communications Updates Enterprise Cloud to Address Hybrid Cloud Needs
NTT Communications has launched the latest version of its Enterprise Cloud this week, with immediate availability in Japan and availability in the UK, Singapore, US, Australia,Hong Kong and Germany to follow.
NTT Comm said the improvements were driven by enterprise challenges, which …Read More
IBM and VMware have partnered to help companies more easily extend their applications running on VMware’s software to the IBM Cloud, making it easier for enterprises to have hybrid cloud environments to the IBM Cloud.
At the IBM Interconnect cloud and mobile conference this week in Las Vegas, the companies announced …Read More
Virtualization has helped many organizations consolidate their environment, remove a sometimes massive hardware footprint and create a more agile infrastructure. Today’s modern data center is finding new ways to leverage a virtualized data center to better fit the needs of the organization.
In looking at modern cloud and data center ecosystems, …Read More
Cloud application developers and independent software vendors can now have the same end-to-end encryption as platforms like Google Apps and Microsoft Outlook withVirtru’s newly launched Software Development Kit (SDK).
Announced late last week, the Virtru SDK provides lightweight, client libraries that enable end-to-end encryption to be seamlessly integrated with any Software-as-a-Service …Read More
Protecting Apache Server From Denial-of-Service Attacks
Denial-of-Service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is …Read More
PHP Sessions in Memcached
The moment a PHP application grows to run on more servers, normally people will see problems caused by PHP sessions. If the application is not persistent you are lucky and don’t care about this, but if not you will quickly see this regardless of how good the …Read More
MySQL InnoDB Corruption Repair Guide
This is a basic guide that goes over some of the methods you can use to deal with some of the most common InnoDB corruption issues, from start to finish.
/A/ First Response
A/1 Initial Steps
A/2 If MySQL is Crashing
/B/ Identifying the Problem
B/1 Examining the Logs
B/1.1 Page Corruption
B/1.2 …Read More
Make Samba Go Faster
After installing a wired gigabit network in my house I tested the performance in the network using shares (Windows – samba installed centos 7). I got around 500-600MBit/sec in read speeds and about 600-700MBit/sec in write speeds. But why ?
After looking at the samba configuration file I saw …Read More
How do I access and use dnf command with a web proxy server on a Fedora Linux? How do I configure dnf to use a proxy server only?
Dnf repositories (“repos”) can be accessed through standard proxy servers such as Squid or any other proxy server. You need to configure the …Read More
How to Recover InnoDB MySQL Table Data from ibdata and .frm Files
This tutorial explains how to restore MySQL tables when all or some of the tables are lost, or when MySQL fails to load table data.
One of the reason for this to happen is when the table data is corrupted.
In …Read More
Linux RAID Mdadm Cheat Sheet
Mdadm is the modern tool most Linux distributions use these days to manage software RAID arrays; in the past raidtools was the tool we have used for this. This cheat sheet will show the most common usages of mdadm to manage software raid arrays; it assumes you …Read More