iotop is a small and handy tool to monitor processes that hogs I/O resources. iotop outputs is similar to ‘top’ except it lists the hard disk read/write activity as well as swap writes.
You can use the left and write key to sort the heading according to your preference and the R key can be used to reverse the sort. The ‘O’ key is used when you only wants it to display processes that are currently utilizing the disk I/O. While the ‘P’ key can be used to display accumulated IO disk read/write for all the processes (which can be sorted with the arrow keys).
Blackbuntu is a Ubuntu-based distro used for penetration testing and security auditing. Blackbuntu is designed to be used by students and practitioners who are interested in the field of information security.
Blackbuntu tools are divided into several categories:
Information Gathering
Network Mapping
Vulnerability Identification
Penetration
Privilege Escalation
Radio Network Analysis
VoIP Analysis
Digital Forensic
Reverse Engineering
Miscellaneous
Which includes these tools among others: Lanmap2, nmbscan, dnsmap, fierce, hostmap, ltrace, tctrace, sqlbrute, sqlmap,sqlninja, mysqloit, sqlcheck, wfuzz,xsser,xssploit,jmeter, nikto2,skipfish,wbox, autopsy,scalpel,mboxgrep,galetta,afstats, wepcrack,giskismet,fakeap,aircrack-ng,cowpatty,bluebugger,bluescan, bluesnarfer, iwar,protos-sip,sipcrack,brutessh,hydra,sshater
The latest Ubuntu 12.04 LTS is going to be released in (28 April 2012), that is less than a week! The latest features of Precise Pangolin are:
1. Linux Kernel
Ubuntu 12.04 will use a kernel based on the 3.2.12 upstream Linux kernel, which include a patch that makes Linux powered laptop consumes more efficiently
2. HUD – Intelligent search feature in Ubuntu 12.04
Stands for Heads-up Display, HUD can be used to search for items in the menu bar in most applications. For example, if you are looking for a particular menu (or functionality) in GIMP, but can’t quite recall its position, you can use HUD to search it. Pictured here here is an attempt to search for ‘Blur’ filter for GIMP.
Currently HUD only works with application that supported Global menu, which means you can’t use it in LibreOffice.
3. Rhythmbox replaced Bansee as the default multimedia player
A decision came during the last Ubuntu Developer Summit (UDS). This move is connected to the new community decision to remove Mono and any application that depends on it from the default installation.
Another casualty is Tomboy note-taking application and gbrainy (game) which also depends on Monoi
**personally, I find depending on Mono application could be problematic, moreover those applications aren’t taking advantage of the ‘portability’ of the .NET platforms (It can’t be used on Microsoft Windows either, not without extensive hacking). So what’s the use of including Mono application on Ubuntu, except for bloating distros?
4. Global Privacy Settings
Ubuntu 12.04 LTS features “Privacy” option in the System Settings screen. The new Privacy Menu gives users the option of turning off History recording for users activities with a click of a menu.
Users may also disable activity recording for a specific group of applications (Instant Messaging, Web browsing, Office Documents, Emails and Multimedia), note that this option *MAY* only work on application that comes with Ubuntu default-installation.
5. Ubuntu *.ISO installer will exceed CD-ROM size
CD-ROM was used as installers on computer platform since 1994, back then the 650MB storage was larger than the average hdd capacity of around 320MB-500MB. The practice of releasing CD-sized ISO have since followed Linux distro for years, well after DVD drive and DVD-writers have become common.
Starting with Ubuntu Precise Pangolin (12.04 LTS), Ubuntu *.iso sizes will not fit CD-ROM anymore. it’s ISO size is estimated to be around 750MB to 800MB. Users may burn the ISO on DVD or use utilities such as UNetBootin to create bootable USB Drive.
My Thoughts
I think Ubuntu is going strong on this release with vast improvements on the usability, especially on the aspect of the UI user-friendliness to those who are new to GNU/Linux. However, I still thinks that Unity UI (and to the extend, the Ubuntu Software Center) is VERY SLOW even when running on a modern system as it took about 10 seconds to load Ubuntu Software Center.
Frankly, I think Ubuntu and the general GNU/Linux desktop community should improve the perceived latency of its UI first in order to persuade people to use open source operating system.
After upgrading my AMD decTOP with 160GB hdd, I’ve decided to install a fresh new operating system on it for some side-project that I’m working on. I choose to install Debian GNU/Linux 6.0.3 (Squeeze) on the machine.
The machine is currently running lighttpd web server with PHP5, samba server and sshd (using public-key authentication).
The specs of the machine are outlined in the screenshot.
Though I’ve used Ubuntu since 2005 and it has been my Linux distro of choice, I prefer to use Debian GNU/Linux for running web server on my VPS or a server at work. Why? because:
Debian is quicker to install
Debian is lightweight / uses less memory / feels faster
Debian doesn’t install XWindows by default
Debian feels more ‘hands-on’
Debian has the largest software repository
Although I recognize the *BSD is the best open source operating system for setting up a php/mysql web server, I still prefer Debian as my server operating system for its simplicity, besides… *BSD hates me… :)
p/s: I’m getting annoyed with Ubuntu Unity and GNOME Shell which I perceive as not only counter-productive, but also hogs the RAM and processor power. my netbook battery lasts 20minutes longer with Debian on LXDE.
Desktop Ubuntu users may have several ways to generate entropy relatively secure GPG keys (=>2048 bits), usually by moving the mouse and by typing random words. However this creates certain problem, for command-line user (especially those who are connecting through remote VPS connection).
Here’s a tip on how to produce enough entropy for GPG key generation:
apt-get install rng-tools
rngd -r /dev/urandom
then, proceed to generate GPG keys as usual: gpg –gen-key
Hopefully this tips will help you get by generating GPS keys over those VPS connections!
