aloke blogs once in a while

IPList : The graphical way of blocking IP in Ubuntu

aloke — Tue, 30 Jun 2009 05:54:22 +0000

iplist is a Linux application for blocking connections to and from a specified range of hosts using the netfilter netlink-queue library. Iplist is an open source IP filtering program similar to PeerGuardian for Linux. Installation To add the iplist repository to your sources.list, open a Terminal and type : Ubuntu 9.04 “Jaunty Jackalope”: sudo wget http://iplist.sf.net/sources.list.d/jaunty.list [...]

Which Ubuntu is this ? Find Version and Code Name

aloke — Mon, 29 Jun 2009 18:59:51 +0000

If you want to quickly know which version of Ubuntu any pc is running, do the following: Open a Terminal and type : cat /etc/lsb-release The output will be something like this : DISTRIB_ID=Ubuntu DISTRIB_RELEASE=9.04 DISTRIB_CODENAME=jaunty DISTRIB_DESCRIPTION="Ubuntu 9.04"

Installing the Device Manager in Ubuntu

aloke — Mon, 29 Jun 2009 18:53:27 +0000

Ubuntu offers a software, a tool to list all the devices/PC hardware . It is similar to Device Manager in MS Windows ( Lots of differences though ) ,but it isn’t installed by default. This application lists thje hardwares by simply probing devices attached to the various system buses . After you can [...]

Manage multiple systems with Parallel SSH

aloke — Fri, 20 Feb 2009 18:42:28 +0000

OpenSSH is perhaps one of the most powerful and versatile tools available to any Linux user. It allows you to securely connect to a remote system via a shell or encrypted FTP and also allows you to copy files securely to and from remote systems. For a user caring for multiple systems, OpenSSH is extremely [...]

Removing old kernels in Ubuntu

aloke — Mon, 16 Feb 2009 18:53:35 +0000

Whenever Ubuntu installs a new Linux kernel, the old one is left behind in the system. As we all are regularly updating our Ubuntu system the Grub boot menu becomes longer and longer with kernels that we don’t need anymore. The old kernels are intentionally left installed and on the menu so that we can boot [...]

Add a swap file or expand existing swap space in Ubuntu

aloke — Fri, 13 Feb 2009 10:08:10 +0000

To create a swap file, you need to first create a dummy file of sufficient size, then format it as a swap file, and finally ensure that Ubuntu uses it at boot-up. The following steps do just that (be extremely careful entering these commands): 1. Open a terminal window and create an empty file in the [...]

Graph the Ubuntu bootup performance

aloke — Fri, 13 Feb 2009 10:03:20 +0000

Bootchart creates charts displaying exactly what starts during boot-up, and the time it takes. Once installed by Synaptic (search for the bootchart package), it runs as a background service and no configuration is necessary. After each boot you’ll find the chart it has generated in the /var/log/bootchart/ directory—to view it, just recede its filename at the [...]

apropos: Searches for a Keyword

aloke — Fri, 13 Feb 2009 09:54:39 +0000

apropos: Searches for a Keyword When you do not know the name of the command you need to carry out a particular task, you can use apropos with a keyword to search for it. This utility searches for the keyword in the short description line (the top line) of all man pages and displays those that [...]

SSH Menu – Manage SSH Connections from the Panel

aloke — Wed, 11 Feb 2009 19:56:12 +0000

While working with more than one server over shell, I was looking for a way to save all my SSH connections and make it possible to open a connection with the least effort. Finally I found a panel applet for GNOME that gives a drop-down list of SSH connections. SSHMenu is that tool. How to install [...]

Free Ubuntu Pocket Guide and Reference

aloke — Wed, 14 Jan 2009 19:38:59 +0000

Ubuntu neophytes and gurus alike have cause to rejoice. Here is a gem of a deal – a free ebook on Ubuntu authored by none other than Kier Thomas. The book is divided into seven chapters spanning 170 pages. And it contain a wealth of information right from an introduction to Ubuntu, to installing and [...]