Posts Tagged ‘CentOS’

 

Security Basics: 4 Steps to Tighten up Linux Security

Tuesday, November 20th, 2012 by

Our previous security articles from GoGrid discussed 5 steps to enhance your security on Microsoft Windows and how to tighten up Windows security. But what about making your Linux server security a bit more robust?

security-camera

Overview

Security studies strongly demonstrate that most systems will be attacked within 5 hours after becoming publicly accessible—in some cases, in less than 2 hours. The sources of the attacks are often unsuspecting users whose systems have been compromised by malware and are in turn being used to attack and infect other systems. The majority of attacks target two common threats:

  1. A combination of commonly used system accounts (e.g., the root account) with weak, dictionary-based passwords
  2. Systems that are missing critical or high-security vulnerabilities

Solution

This article provides GoGrid’s security recommendations for Cloud Servers running Linux. Perform these 4 steps in sequential order immediately after provisioning new GoGrid Cloud Servers to maintain the security (confidentiality + integrity + availability) of your system. (more…) «Security Basics: 4 Steps to Tighten up Linux Security»

How to Install LAMP, Webmin & ConfigServer Security & Firewall on a CentOS 6.0 GoGrid Cloud Server

Thursday, July 19th, 2012 by

Let me preface this post by saying, I am NOT a Linux guru. In fact, I consider myself to be a newbie when it comes to the intricacies of Linux. I probably know enough to be dangerous, at least dangerous to the server. So, I’m writing this post with the following disclaimer: Don’t ask me for any details on the “why” or how to do what I’m outlining below differently. But since I figured that lots of you are like me, I wanted to share.

Since I’m a Linux newbie, you’ll probably understand why I wanted to write this post though. I’m not a command line junkie—GUIs are much more my thing. But when it comes to running a server that is speedy and high performance with low overhead (e.g., doing away with GUIs), you’re probably looking at various Linux distros. What I wanted to do was set up a basic Linux system running a LAMP (Linux, Apache, MySQL, and PHP) stack that also had a web-interface and some added security controls.

The great thing about doing this type of experimentation in the cloud is that I can create essentially a Dev & Test environment where I can spin up a server in minutes, install software, configure it, and test everything out. Then if it doesn’t work the way I want it to, I can tear it down and start again from scratch. The cloud lets you do this quickly, easily, and inexpensively.

In this tutorial, you can basically have the entire configuration up and running in the GoGrid cloud in less than an hour and only spend about $0.25 to test this out (assumes a 2 GB server running for 1 hour at $0.12/GB RAM/hr.)

Here’s what we’re using:

  • CentOS 6.0 (64-bit) – with 2 GB RAM
  • Webmin – web-based interface for sysadmins for UNIX that lets users set up user accounts, Apache, DNS, file sharing, and a whole lot more
  • ConfigServer Firewall & Security (CFS) – a Stateful Packet Inspection (SPI) firewall, login/intrusion detection, and security application for Linux servers

(more…) «How to Install LAMP, Webmin & ConfigServer Security & Firewall on a CentOS 6.0 GoGrid Cloud Server»

New & Updated CentOS, Debian, RHEL and Windows Base Cloud Server Images Released on GoGrid

Thursday, September 15th, 2011 by

Yesterday we release several new and updated base GoGrid cloud server images as part of our regular Operating System refreshes.

new-updated-base-OS-images

Below is a quick lists of the New, Updated and End of Life-d base images.

New Major Versions

  • CentOS 6
  • What’s new in CentOS 6 (RHEL technical details): http://www.redhat.com/rhel/server/details/
  • This version of CentOS is not subject to the “time drift” issue
  • These machines now run in PV (paravirtualization) mode
  • Debian 6
  • (more…) «New & Updated CentOS, Debian, RHEL and Windows Base Cloud Server Images Released on GoGrid»

    GoGrid Cloud Survey Report – Operating Systems in the Cloud (Part 6)

    Monday, August 1st, 2011 by

    When most people hear the phrase “operating system in the cloud” they usually think of a really cool client-side, Web-based desktop like EyeOS or CloudMe or even Chromium OS. Perhaps that is the future of client operating systems, but when cloud infrastructure providers talk about operating systems, they are making reference to which OS your cloud infrastructure will run on. And, it’s not always limited to just one in many cases.

    OS_choices

    At GoGrid, we provide a variety of operating systems including:

    • Windows Server
    • Ubuntu
    • Red Hat Enterprise Linux
    • Debian
    • CentOS

    Operating systems in the cloud are very important because they are what your applications and infrastructure are built upon. Whether you’re using the cloud to deploy test & development environments, act as your data center or run your company’s business critical applications, the operating system plays a vital role in cloud infrastructure.

    Most IT professionals are pretty passionate about what operating system they prefer. For instance, search for “Windows vs. Linux” on Google – over 109 million results have some sort of opinion on the topic. But, since actions speak louder than words, we wanted to determine which operating system was used more by the IT industry.

    (more…) «GoGrid Cloud Survey Report – Operating Systems in the Cloud (Part 6)»

    Details on the Recent Upgrades to GoGrid: East Coast Load Balancers, New Dedicated Server Images & 16 GB RAM Images

    Wednesday, August 4th, 2010 by

    Right on the heels of the GoGrid 3.0 release, we needed to be sure that we didn’t slow our momentum down. To that end, this week we have released some new features to GoGrid which are important to highlight.

    UPGRADE_sticky

    We have 3 exciting features, specifically:

    • East Coast Load Balancers
    • New GoGrid Dedicated Server Images
    • 16 GB RAM on GoGrid Cloud Servers

    East Coast Load Balancers

    As we work towards obtaining full feature parity within a few months in our East Coast Datacenter launch, one of the first items that we enabled was that of Load Balancing. Just like in the West Coast Datacenter, Load Balancing on the East Coast remains FREE. With the rollout of Load Balancers in the East Coast, all GoGrid users now have the ability to deploy 6 total Load Balancers for free, 3 in each Datacenter.

    GG3_Loadbalancer_East

    (more…) «Details on the Recent Upgrades to GoGrid: East Coast Load Balancers, New Dedicated Server Images & 16 GB RAM Images»