Removing a repository:-

rpm -qf /etc/yum.repos.d/pgdg-84-centos.repo

will give you the name of the package:-

pgdg-centos-8.4-2

then remove that package:- yum remove pgdg-centos

Clean windows registry from Linux

password protect data cd/dvd in linux

see:- http://www.ghacks.net/2009/08/10/how-to-password-protect-data-on-cds-or-dvds/

Remote Desktop sharing in ubuntu 10.04

see:- linuxtopia.org

Linux laptop

Top 20 reasons why Windows suks

Running Windows Applications in Linux

portable linux apps

On screen keyboard in Ubuntu

To get the onscreen keyboard , just type program name onboard

we can also add it to the main menu via menu editor program alarcate

Linuxtant

XvideoserviceThief

linux live usb

GPRS handset as your P.Cs gateway to the web, under LINUX

Offline installation/Updation/Upgradation in ubuntu

Problem:- you want to install selinux in an ubuntu based machine which doesn't have a net connection

Solution:- go to an ubuntu machine have net connection ,and correct repository settings
and type the following command :-

sudo apt-get --print-uris --yes install selinux | grep ^\' | cut -d \' -f2

to get the following results:-

http://archive.ubuntu.com/ubuntu/pool/universe/a/audit/libaudit0_1.7.13-1ubuntu2_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/u/ustr/libustr-1.0-1_1.0.4-2_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/libs/libsemanage/libsemanage-common_2.0.42-1_all.deb
http://archive.ubuntu.com/ubuntu/pool/universe/libs/libsemanage/libsemanage1_2.0.42-1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/libs/libsemanage/python-semanage_2.0.42-1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/libs/libselinux/python-selinux_2.0.89-4_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/s/sepolgen/python-sepolgen_1.0.18-1_all.deb
http://archive.ubuntu.com/ubuntu/pool/universe/p/policycoreutils/policycoreutils_2.0.77-1ubuntu1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/libs/libselinux/selinux-utils_2.0.89-4_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/s/selinux/selinux_0.9_all.deb
http://archive.ubuntu.com/ubuntu/pool/universe/c/checkpolicy/checkpolicy_2.0.20-1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/r/refpolicy-ubuntu/selinux-policy-ubuntu_0.2.20091117-0ubuntu1_all.deb
http://archive.ubuntu.com/ubuntu/pool/universe/b/bwidget/bwidget_1.9.0-2_all.deb
http://archive.ubuntu.com/ubuntu/pool/universe/s/setools/libqpol1_3.3.6.ds-6ubuntu1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/s/setools/libsetools-tcl_3.3.6.ds-6ubuntu1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/universe/s/setools/setools_3.3.6.ds-6ubuntu1_i386.deb


then download all these packages individually and take it to the offline machine and install it there


for downloading use wget , ex:-

sudo apt-get --print-uris --yes install selinux | grep ^\' | cut -d \' -f > offline.txt

then use wget, wget --inputfile offline.txt



we can extend this procedure to up-gradation also:-

for example:-

zodiac@gml-admin:~$ sudo apt-get --print-uris --yes upgrade | grep ^\' | cut -d \' -f2
to get:-

http://deb.opera.com/opera/pool/non-free/o/opera/opera_10.62.6438_i386.deb
http://archive.canonical.com/ubuntu/pool/partner/a/adobe-flashplugin/adobe-flashplugin_10.1.85.3-1lucid1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/d/dpkg/dpkg_1.15.5.6ubuntu4.3_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/g/gzip/gzip_1.3.12-9ubuntu1.1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-image-2.6.32-24-generic_2.6.32-24.43_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/a/apt/apt_0.7.25.3ubuntu9.3_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl-dev_0.9.8k-7ubuntu8.1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl0.9.8_0.9.8k-7ubuntu8.1_i386.deb
http://archive.ubuntu.com/ubuntu/pool/main/a/apt/apt-utils_0.7.25.3ubuntu9.3_i386.deb

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we can extend this procedure to updation also:

for example:-

zodiac@gml-admin:~$ sudo apt-get --print-uris --yes update | grep ^\' | cut -d \' -f2

to get:-

http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu/dists/lucid/main/binary-i386/Packages.bz2
http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu/dists/lucid/Release
http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu/dists/lucid/Release.gpg
http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu/dists/lucid/main/i18n/Translation-en_US.bz2
http://deb.opera.com/opera/dists/stable/non-free/binary-i386/Packages.bz2
http://deb.opera.com/opera/dists/stable/Release
http://deb.opera.com/opera/dists/stable/Release.gpg
http://deb.opera.com/opera/dists/stable/non-free/i18n/Translation-en_US.bz2
http://dl.google.com/linux/talkplugin/deb/dists/stable/main/binary-i386/Packages.bz2
http://dl.google.com/linux/talkplugin/deb/dists/stable/Release

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nautilus re spawning bug

see:- https://bugs.launchpad.net/nautilus/+bug/325973