Dipin krishna

The attempt to copy the entire disk image using cp may omit the final block if it is an unexpected length; dd will always complete the copy if possible.We can use the dd command to create an ISO disk image of a CD or DVD. dd if=/dev/cdrom of=/home/dipin/mydisk.iso bs=2048 conv=sync,notrunc change /dev/cdrom and /home/dipin/mydisk.iso as… Read More »How to create an ISO disk image of a CD or DVD from command line

Using dd to duplicate one hard disk partition to another hard disk: dd if=/dev/sda2 of=/dev/sdb2 bs=4096 conv=notrunc,noerror Replace /dev/sda2 and /dev/sdb2 with your partitios.Note that notrunc means do not truncate the output file. Noerror means to keep going if there is an error.

DNS hosting service is a service that runs Domain Name System servers. Most, but not all, domain name registrars include DNS hosting service with registration. Free DNS hosting services also exist. Many third-party DNS hosting services provide Dynamic DNS. DNS hosting service is better when the provider has multiple servers in various geographic locations that… Read More »What is DNS hosting service

A dedicated server is a single computer in a network reserved for serving the needs of the network. For example, some networks require that one computer be set aside to manage communications between all the other computers. A dedicated server could also be a computer that manages printer resources. Note, however, that not all servers… Read More »what is dedicated server hosting service

You can create and Modify ISO9660 files (iso images) graphicaly in ubuntu by using an open source Linux application ISO Master Features: 1. Create an ISO image from scratch. 2. Add or remove files and directories to a CD iso image. 3. Make bootable CDs 4. Support for Rock Ridge and Joliet file names. ISO… Read More »How to Create and Modify ISO Images in Ubuntu 9.04

Installing some common fonts.There are a number of very common fonts, which you can install through APT/Synaptic, including the Microsoft TrueType core fonts (e.g. Arial Black, Times New Roman).Before installing, make sure you enable the extra repositories, (If your not sure how to do this please see: Repositories/Ubuntu).Install the fonts: $ sudo apt-get install msttcorefonts… Read More »Installing Fonts in Ubuntu 9.04

Swiftfox is an optimized Mozilla Firefox which has different builds depending on your processor which makes it much faster than the normal Firefox because that’s compiled to work for everybody, but not optimized for a specific processor architecture. Take a look at this chart and see which Swiftfox version is best suited for your computer… Read More »Swiftfox: an optimized Mozilla Firefox

To install the latest Firefox 3.5 (final) or Firefox 3.6 in Ubuntu, open a terminal and type: sudo sh -c “echo ‘deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main’ >> /etc/apt/sources.list” sudo sh -c “echo ‘deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main’ >> /etc/apt/sources.list” Then add the Launchpad PPA GPG key: sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 247510BE And finally, install Firefox… Read More »Firefox 3.5 or 3.6 Ubuntu Repository (deb)

Want to quickly set the route for your machine from the terminal. Start by opening up a terminal window, and type the following, just make sure you have the ip address of your gateway to do so. route add default gw IP ADDRESS eth0 We can see our changes by typing: route -n

The Lubuntu project (Ubuntu based on LXDE) just published it’s first ISO. LXDE is a very lightweight and minimal desktop environment using the openbox window manager, the PcManFM file manager, and a very select list of default applications. It is compatible with basic freedesktop standards and all needed parts are already packaged in Ubuntu today.… Read More »LUbuntu: Fastest Ubuntu Yet

Want to back up files and documents on your laptop or desktop PC to a server? Assuming both machines run Linux, you can do that with just one command. First, install SSH server on the server and rsync on your machine. Open then the terminal on your machine and run the following command: rsync –progress… Read More »Two Useful Commands for Your Linux Server

Using the following command, you can check your unread messages in gmail, from terminal: $ curl -u username –silent “https://mail.google.com/mail/feed/atom” | perl -ne ‘print “\t” if //; print “$2\n” if /(.*)/;’ replace username with your gmail username. This command will promt for your password, enter it and view your unread in your gmail account .

SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the partitions of the hard disk. It comes with… Read More »SystemRescueCd: A Complete System Rescue Disk Based on Linux

LuckyBackup is a backup and sync application running on Linux and Mac OSX, powered by the rsync tool. It is simple to use, fast (transfers over only changes made and not all data), safe (keeps your data safe by checking all declared directories before proceeding in any data manipulation ), reliable and fully customizable. Installing… Read More »LuckyBackup: A Powerful, Fast and Reliable Backup & Sync Linux Tool

The Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computer systems over packet-switched, variable-latency data networks. NTP uses UDP port 123 as its transport layer. It is designed particularly to resist the effects of variable latency.NTP sometimes greatly slows down your Ubuntu’s boot time. To disable it just do a simple… Read More »Disable NTP sync during boot (USplash) in Ubuntu Linux

If you want to have Flash support in Google Crome, the Linux version, you can enable it like this: Make a plugins directory in the Google Chrome folder sudo mkdir /opt/google/chrome/plugins cd to it cd /opt/google/chrome/plugins make a link from Firefox’s Flash Player plugin into the newly created folder sudo ln -s ~/.mozilla/plugins/libflashplayer.so Now launch… Read More »Enable Flash support in Google Chrome for Linux

You you have alloted a low space while installing, or you have upgraded your RAM, or you think you need some more swap space then what will you do. You can go to the partion table make make changes, but this can cause many problems.Instead you can just make a file and assign it to… Read More »How to use a swapfile to increase the swap space of your linux system (ubuntu, centos, debian, etc..)

Advanced gmail notifier for linux – Checkgmail – lets you control emails from the notification area Checkgmail Checkgmail is an application that stays in your notification area and whenever you receive a new email, it opens a small notification window and by clicking the window you are taken to your gmail account and when hovering… Read More »Advanced gmail notifier for linux – Checkgmail

To remove a swap file: At a shell prompt as root, execute the following command to disable the swap file (where /swapfile is the swap file): # swapoff -v /swapfile Remove its entry from the /etc/fstab file. Remove the actual file: # rm /swapfile

The swap logical volume cannot be in use (no system locks or processes on the volume). The easiest way to achieve this it to boot your system in rescue mode. Refer to for instructions on booting into rescue mode. When prompted to mount the file system, select Skip. To remove a swap volume group (assuming… Read More »Removing an LVM2 Logical Volume for Swap