Category Archives: Softwares
Check which services are enabled/disabled on your Ubuntu System
There are various services that an OS provides. If it is Ubuntu then you may at times want to know which one is enabled and which one is not. The best way to know it is chkconfig.
chkconfig provides a simple command-line tool for maintaining the /etc/rc[0-6].d directory heirarchi by relieving system administrators of the task of directly manipulating the numerous symbolic links in those directories. chkconfig has five distinct functions: adding new services for management, removing servicesfrom management, listing the current startup information for services, changing the startup information for services, and checking the startup state of a particular service.
When chkconfig is run without any options, it displays usage information.
To install chkconfig on Ubuntu
sudo apt-get install chkconfig
To check which services are enabled, just type chkconfig in the terminal and press return. It will list all the services available.
chkconfig can be used with options. More can be learnt from the man pages or here.
Get the new Android Market
Google has just announced the release of its new version of Android Market which is the version 3.0.26. Google said the new Android market will be rolled out with the new devices that are going to come. If you are an android owner and still waiting for the new version to hit your phone, then you’re probably missing all the fun. You can right away download this Android market from here and install it like any other application. The new android market has lot more applications and a whole new look. Here’s the video released by the Google –
Beginning with Manual Mode Point and Shoot Cameras
There have been lot of camera models lately, which are point & shoot but features manual mode of operation. If you are new to such a camera then here are few tips on how to configure your camera for best results.
The only three things you need to know are : Shutter Priority, Aperture Priority and ISO. It can be explained as -
A fast shutter speed will freeze movement, giving a crisp, sharp images of the subject. A slow shutter speed can create deliberate blur in a moving subject – when photographing moving water, for example. When you are shooting landscapes, you will often want everything from the foreground to the horizon to appear as sharp as possible. This requires a small aperture, such as f/16 to give a wide depth of field. ISO is the indication of how sensitive a image sensor is to light. The lower the number the lower the sensitivity of image sensor and the finer the grain in the shots. To better understand this concept, check out this flash website that is intelligently designed to briefly understand the above concepts in photography.
http://camerasim.com/csv1.swf
You can change the ISO, focal length, Priorities and etc..
