Month: May 2014

Link: Paparazzi Takes Full Web Page Screen Shots in Mac OS X Easily

by Admin

Anyone who works with the web likely knows that it can be a challenge to take a full web page screenshot. While the traditional go-to options for many web designers and developers is to print a page as a PDF or use the Mac standard screen shot keyboard shortcuts in OS X, for longer pages users have to scroll through a web page and take pictures repeatedly, then use a third party app like Pixelmator or Photoshop to join them together, a time consuming and tedious process. There’s a better way though, thanks to a free Mac app called Paparazzi, which offers a much easier approach to take complete screen shots of entire web pages regardless of how long or wide the website is.

Full article here:
Paparazzi Takes Full Web Page Screen Shots in Mac OS X Easily (OS X Daily)

NOTE: Depending on the browser used, it might be possible to get an extension or add-on that provides similar functionality from within the browser itself. For example, in Firefox you can use the ScreenGrab! (fix version) add-on to get this:

Screengrab! saves entire webpages as images. Just right-click on the page you want to grab and look in the “Screengrab” menu.
It will capture what you can see in the window, the entire page, just a selection, a particular frame… basically it saves webpages as images – either to a file, or to the clipboard, or upload to internet.

Link: Debian Linux Home Router with IPv4 and IPv6

by Admin

I use Debian Wheezy for a home router with an he.net IPv6 tunnel. Here are the configs I have in place for this to work!

Note: This is not a full how-to guide but rather a dump of config files. Hopefully this will be of use to fellow Linux geeks out there. I am using a /24 class B because I do not like to use 192.168.x.x.

Full article here:
Debian Linux Home Router with IPv4 and IPv6

Link: SSH Dictionary Attack Prevention with iptables

by Admin

…I found it is also ideal to slow down the attack when the infested host started to brute force the SSH authentication. There are many scripts/user-land daemons that perform monitoring and blocking. However in a resource limited VPS, I prefer to use something that has less demand in memory/CPU usage. IPTables recent module provides a kernel level solution with little overhead.

Full article here:
SSH Dictionary Attack Prevention with iptables (HostingFu)

Link: How to verify DDOS attack with netstat command on Linux Terminal

by Admin

Your server appearing pretty slow could be many things from wrong configs, scripts and dodgy hardware – but sometimes it could be because someone is flooding your server with traffic known as DoS ( Denial of Service ) or DDoS ( Distributed Denial of Service ).

Denial-of-service attack (DoS attack) or Distributed Denial-of-service attack (DDoS attack) is an attempt to make a machine or network resource unavailable to its intended users. This attack generally target sites or services hosted on high-profile web servers such as banks, credit card payment gateways, and even root nameservers. DoS attacks are implemented by either forcing the targeted computer to reset, or consuming its resources so that it can no longer provide its services or obstructs the communication media between the users and the victim so that they can no longer communicate adequately.

In this small article you’ll see how to check if your server is under attack from the Linux Terminal with the netstat command

Full article here:
How to verify DDOS attack with netstat command on Linux Terminal (Linuxaria)

Link: How to Run Linux Applications On Your Mac

by Admin

Linux is beloved by many around the world for its simplicity and ultimate customization Because it’s open source (and free!) many Mac users choose to run it as a virtual machine on VMWare, Parallels, or even Virtual Box. However, sometimes you might want to run a Linux-based application without having to jump through too many hoops. Using a SSH tool called X over SSH2, you can graphically load remote Linux apps and use them right on your Mac.

What You’ll Need:

>> Linux computer or virtual machine on a Mac
>> Apple X11 (Download Here)

Full article here:
How to Run Linux Applications On Your Mac (MacLife)

Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail on CentOS 6.5/6.4 or OpenSUSE 13.x

by Admin

Postfix is a free open source mail transfer agent (MTA). It is easy to administer, fast and as well as the secure MTA. It’s an alternative to Sendmail, which is the default MTA for RHEL.

Well, let us see how to setup a basic local mail server using Postfix, Dovecot and Squirrelmail On CentOS 6.5 [or Opensuse], although it should work on RHEL, Scientific Linux 6.x series [or SLES Servers].

Full articles here, from Unixmen:
Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail On CentOS 6.5/6.4
Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail On OpenSUSE 13.x

Link: How to Record the Screen on Your Mac

by Admin

There are various reasons for recording the screen on your Mac. Maybe you are writing a detailed step-by-step guide that needs a video tutorial, or maybe you just want to show something to your friends by recording your screen. Either way, you are going to be needing some sort of tools you can use to capture your screen. Fortunately, Mac comes with a built-in tool that helps you accomplish your task. While there may be some other choices on the market to get your job done, the one that comes with your machine is just a perfect tool with all of the features you will ever need.

Full article here:
How to Record the Screen on Your Mac (Make Tech Easier)

Link: How to record and replay a terminal session on Linux

by Admin

Suppose you are a go to person among your friends and family when it comes to Linux related questions. Someone asked you how to install and configure a tool, and you wanted to show the procedures. How would you do that if he or she is not in front of you? There could be various ways (e.g., by documenting and emailing the procedures, or explaining verbally over the phone, etc), but probably the most clearcut solution would be to demonstrate it yourself. If the demonstration only requires a terminal, then the best way would be use terminal screencast or terminal session recorder.

In this tutorial, I am going to demonstrate how to record and replay a terminal session on Linux.

Full article here:
How to record and replay a terminal session on Linux (Xmodulo)
Related:
2 Simple Applications That Record Your Terminal Session as Video [Linux] (Make Tech Easier)

Link: linux-dash: Monitors “Linux Server Performance” Remotely Using Web Browser

by Admin

If you are looking for a low resource, speedy server statistics monitoring script, look no further than linux-dash. Linux Dash’s claim to popular is its slick and responsive web dashboard that works better on large and small screens.

linux dash is a memory efficient, low resource, easy to install, server statistics monitoring script written in PHP. The web statistics page allows you to drag and drop the various widgets and rearrange the display as you desire. The script displays live statistics of your server, including RAM, CPU, Disk Space, Network Information, Installed Software’s, Running Processes and much more.

Full article here:
linux-dash: Monitors “Linux Server Performance” Remotely Using Web Browser (Tecmint)

Link: How to Easily Combine Two Scanned Documents Into One in OS X

by Admin

Usually, whenever you scan a document onto your system, OS X will create separate files for each subsequent scan which you can save to the location of your choice. This can be an issue if you want to merge many scanned pages into one document, for either sending to someone or for storage. Luckily, OS X does support combining scanned pages into one document. Read on to find out how to do this:

There are two different ways to combine two scanned documents into one document. You can either directly combine your files while scanning them so that they are all directly scanned into one document, or you can combine your already scanned documents. Both methods will use Preview in OS X.

Full article here:
How to Easily Combine Two Scanned Documents Into One in OS X (Make Tech Easier)

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