Bash script self-updates from github
Building a private cloud solution for a customer, some scripts that we inject into cloud images quickly get out-dated by the time we actually wanna spin up instances. Why not create bash scripts that...
View ArticlePracticing safe DNS with Google
The Internet’s a dangerous place for an innocent Web browser to be searching alone for the right Web page, so the Domain Name System Security Extensions (DNSSEC) was created to make searching safer....
View ArticleThings that every IT person should know
No book or teacher can magically pour deductive problem-solving skills into your head. What works is lots of experience falling flat on your face — and lots of pounding your head on a desk until you...
View ArticleWhat is the Network Control Point for Security?
In recent years, analyst firms and vendors have all jumped on the bandwagon using the terms Next Generation Firewall (NGFW) and Next Generation IPS (NGIPS). The key to both technologies is application...
View Article75 Open Source Apps To Replace Popular Security Software
While no security software can provide complete protection from every cyberattack, the open source community has developed a variety of tools that home users, small businesses and enterprises can use...
View ArticleFree & Open Source Rootkit and Malware Detection Tools
A lot of sniffers, rootkits, botnets, backdoor shells and malwares are still on the wild today, which are used by malicious attackers after successfully pawning a certain server or any live network in...
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How Does Big Data Impact the Network?
Traditionally, the way that network admins have solved capacity issues is with bandwidth. Surprisingly, though, only 21 percent of Cisco’s survey respondents indicated that they will need more...
View ArticleToo many admins spoil your security
We’ve all known for a long time that unnecessary use of elevated privileges is a bad thing. You shouldn’t be logged in as an administrator while surfing the Internet or checking your email; in...
View Article15 Command Line Tools to Monitor Linux Performance
It’s really very tough job for every System or Network administrator to monitor and debug Linux System Performance problems every day. After being a Linux Administrator for 5 years in IT industry, I...
View ArticleWhy Use Xen?
For the business person, the answer is that Xen is a safe, stable, well-tested choice for virtualization which is used by industry giants (Amazon, Rackspace, Verizon, etc.). It has a robust consortium...
View ArticleSettingup Spacewalk Server
First install the spacewalk repo [root@localhost ~]# rpm -Uvh http://spacewalk.redhat.com/yum/latest/RHEL/6/x86_64/spacewalk-repo-1.9-1.el6.noarch.rpm Next install the yum priorities plugin...
View ArticleSetting up REDHAT IDM using FREE IPA
IPA stands for Identification, Auditing, Policy. Requirements 1Gbyte of RAM NTP DNS entries for all IPA servers (including PTR records) Fully updated CENT OS 6.4 Installation of the first IPA Server...
View ArticleMySQL to Maria DB Migration
With Oracle’s fairly recent acquisition of MySQL, a lot of people are looking to move away from MySQL in fear of Oracle changing the licensing, which could force you to change database backends. As...
View ArticleA guide to free and open source education
Nearly every week, if not every day, there are more and more open source and open educational resources available and accessible to us. It’s impossible to ignore. It also seems impossible to keep pace...
View ArticleSoftware-Defined Data Centers Could Change the IT Landscape
The open source community is playing a very big role in the push for software-defined data centers. OpenStack and other projects figure prominently in the plans of Red Hat, Citrix and other vendors,...
View ArticleThe last days of Unix
Unix, the core server operating system in enterprise networks for decades, now finds itself in a slow, inexorable decline. IDC predicts that Unix server revenue will slide from $10.2 billion in 2012 to...
View ArticleFree and Inexpensive Ways to Pick Up Open Source Tech Skills
This week Twitter was in the news for buying San Francisco-based company Marakana, which has focused on tech training, including training many people to use open source technology platforms and tools....
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