How to use id.pool.ntp.org in Windows 7/8/8.1/10

Open your regedit.exe, and edit this values
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers
HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\DateTime\Servers
1 REG_SZ 0.id.pool.ntp.org
2 REG_SZ 1.id.pool.ntp.org
3 REG_SZ 2.id.pool.ntp.org
4 REG_SZ 3.id.pool.ntp.org

http://www.pool.ntp.org/zone/id

Installing Amazon SDK (old)

This is what I have done to install Amazon SDK in Android SDK Manager.

1. Android SDK Manager -> Tools -> Manage Add-on Sites -> User Defined Sites -> New (or Edit if you already has one.)
2. Enter URL https://s3.amazonaws.com/android-sdk-manager/redist/addon.xml
3. Amazon device (optional)
   • Amazon Fire Phone addon in Android 4.2.2 Level 17
   • Amazon Fire Tablet add on in Android 4.4.2 level 19
4. Extra (optional)
• Amazon Kindle Fire USB Driver
• Phone Build Tools: If you are developing for Fire Phone

Play Video (mp4,3gp,etc) From Resource (old)

1. put your mp4 file into folder res/raw (you need to create folder raw under folder res)
   For example d:\workspace\Test\res\raw
   Application Name: Test
   mp4 file name: gayatrimantra.mp4full path filename: d:\workspace\Test\res\raw\gayatrimantra.mp4
2. to start your Video, write this code
       public void ClickDeh(View view)
       {
           VideoView videoview = (VideoView) findViewById(R.id.videoView1);
         
           Uri uri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.gayatrimantra);
                 
           videoview.setVideoURI(uri);
           videoview.start();      
       }
   

Note: File name must be unique

Source: http://www.androidsnippets.com/play-video-file-from-resources

Samsung I5700/Spica/Portal (old)

Samsung released its latest Android operating system for I5700/Spica/Portal i.e Android 2.1 Update 1, and has no more plan to support this device for higher operating system. I'll show you how to update from operating system Android version 1.x to official operating system Android 2.1 Update 1.

For preparation, you need to download & install New PC Studio 2.0 or latest.

To make your software connecting to your device, you to change your device setting, here is what you should change:

1. If your device is on version 1.5 (cupcake):

Go to Main Menu >> Settings >> About Phone >> Additional Settings. 

Make sure "Mass storage only" is unchecked. Make it unchecked if it is not.

2. If your device is on version 2.1 (eclair):

Go to... Main Menu >> Settings >> Applications >> Development.

Make sure "USB debugging" is checked. Make it checked if it is not.

Follow these following steps:

1. remove your SIM Card & Micro SD-CARD from your device
2. connect your mobile to PC using USB
3. click update firmware, it will download your firmware (2.1) into your phone
4. follow instruction.
5. after firmware installation finish, your may shutdown your device
6. reinsert your SIM/Micro SDCARD
7. start your device normally

Note: You need to full charged on your mobile before proceed this procedure

Upgrading your BBM to version 7 or above complete with your contacts (old)

You have to follow these steps to make sure you won't miss any contact after upgrading your BBM or upgrading your mobile phone:

1. You need to create BB ID. To create an ID, you need a valid email for indentificate abour your self.
2. Before updating your BBM you need to backup your contats localy to Micro SD Card.
3. Update/upgrade your Blackberry ID application (required reboot).
4. Update/upgrade your Blackberry Application World (required reboot).
5. You may update/upgrade your BBM to version 7 (required reboot).
6. After a new BBM version 7, it will restore your contacts and make your contacts backup into Blackberry cloud. 

 Note:

BBM version 7 does not have backup function, your backup stored in Blackberry cloud using Blackberry ID.

After replacing your Blackberry Device with a new one, you just need to configure your Blackberry ID using your Blackberry ID i.e your email address. 

Note:

You need to upgrade your BBM to version 7 to avoid lossing contacts, or (if your device does not support version 7) make a backup to Micro SD Card, then try to restore your contacts before updating BBM to version 7.

Joomla 3.1.x: ini_set() has been disabled for security reasons (old)

When I open my web using Joomla version 3.1x, I found annoying messages "ini_set() has been disabled for security reasons". Unfortunately, this warning prevent me to login into Joomla administration.

There are 2 way to fix it. You can choose one of these way:

1. You can edit [your root Joomla]/configuration..php

and add

error_reporting(0);
@ini_set(‘display_errors’, 0);

between <?php and class JConfig

it's become like this

<?php
error_reporting(0);
@ini_set(‘display_errors’, 0);

class JConfig {

2. or you can edit file [your root Joomla]/libraries/joomla/session/session.php and add @ in every ini_set command.

For Example in line 120 (line number may deferent for each Joomla version) it becomes like this.

@ini_set('session.use_trans_sid', '0');

done.... :)

Debian 8 Jessie Repository

Here are repository for Indonsia mirror:

# Indonesia
deb http://kambing.ui.ac.id/debian/ jessie main
deb-src http://kambing.ui.ac.id/debian/ jessie main

# Security
deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
# NON FREE
deb http://ftp.de.debian.org/debian jessie main non-free

# BACKPORT
# deb http://httpredir.debian.org/debian jessie-backports main contrib non-free
deb http://httpredir.debian.org/debian jessie-backports main

Installing JDK 8 on Debian Wheezy

By default, Debian Wheezy repository does not provide JDK-8 and JRE-8. You can download it from http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html. If you install JDK-8 using remove SSH, you can follow these steps:

1. Download JDK-8 from URL above
   # wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u45-b14/jdk-8u45-linux-x64.tar.gz
2. Extract it
   # tar xvzf jdk-8u45-linux-x64.tar.gz
3. Create directory /usr/lib/JVM, if it does not exist. By default JDK will install on these folder
   # mkdir /usr/lib/jvm/
Move JDK-8 folder to /usr/lib/JVM
# mv jdk1.8.0_45 /usr/lib/jvm/
4. Update alternative Java
   # update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8.0_45/bin/java 100
   update-alternatives: using /usr/lib/jvm/jdk1.8.0_45/bin/java to provide /usr/bin/java (java) in auto mode
   # update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8.0_45/bin/javac 100
   update-alternatives: using /usr/lib/jvm/jdk1.8.0_45/bin/javac to provide /usr/bin/javac (javac) in auto mode

Installing LAMP on Debian 8.0 (Jessie)

Here are steps to install LAMP on Debian 7.1 Wheezy:

1. Open your terminal as a root (Super User)

2. Installing MySQL

# apt-get install mysql-server mysql-client
set password for root (super user)

3. Installing Apache

# apt-get install apache2

4. Install PHP

# apt-get install php5 libapache2-mod-php5

5. Restart your apache2

# /etc/init.d/apache2 restart

6. Search module

# apt-cache search php5

7. Install other modules

# apt-get install php5-mysql php5-curl php5-gd php5-idn php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-pspell php5-recode php5-snmp php5-tidy php5-sqlite php5-xmlrpc

8. Restart your apache2 using step 5, and test your installation using browser with URL http://localhost

Installing Debian 7 x64 ethernet card & wifi in Lenovo B490

Last week, I got problem for enabling ethernet card & wifi in Lenovo B490 after installing Debian 7.1 x64. I need to install it offline for at least enabling ethernet card or wifi to make it online. After googling, i decided to enable ethernet card first to make it online (easier).

To install ethernet card in lenovo B490, it uses chipset realtek r8169 and it needs to install its firmware manualy from debian.org. follow these step to install it:

1. Download realtek r8169 firmware https://packages.debian.org/wheezy/all/firmware-realtek/download
2. Install it by run this command
   # dpkg -i firmware-realtek_0.36+wheezy.1_all.deb

After that, make it online, and add repository required to update your system. Wifi in lenovo B490 uses chipset bcm43142 that does not exist in debian repository. I follow this guide http://forums.debian.net/viewtopic.php?f=30&t=109498 to install its wifi. Here are steps to do:

1. Download the driver from https://mega.co.nz/#!qIUySZYJ!PgfNRVCcXO-enbDuhziUqVCriMcDhbU-houaQ97c0yM
   or the link was broken just search in google "download wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb"
   
2. Install it manualy bu run this command
   # dpkg -i download wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb
3. Install network-manager by run this command
   # apt-get install network-manager

References are provided in content.

Installing ODOO 8 in Debian

Odoo was formerly known as OpenERP until May 2014. It was rebranded because version 8 of the software included apps including website builder, e-commerce, point of sale and business intelligence. The software conforms to standard expectations of ERP systems, while providing additional modules beyond the coverage of traditional ERP systems.

These are steps to install ODOO/OpenERP version 8 (latest release) in Debian (in my case):

1. Add this into your /etc/apt/sources.list
   deb http://nightly.odoo.com/8.0/nightly/deb/ ./
   or
   deb http://nightly.odoo.com/master/nightly/deb/ ./
2. Install odoo key
   # wget https://nightly.odoo.com/odoo.key
   # apt-key add odoo.key
3. update by run this command
   sudo apt-get update
4. install ODOO 8 by run this command
   sudo apt-get install odoo

Source: http://nightly.odoo.com/

Shellshock Vulnerability on Bash Shell

This is how you test your bash shell whether its vulnerable or not for 'shellsock' bug.
Run this on your linux shell (you don't need super user account for this):
 $ env x='() { :;}; echo vulnerable' bash -c "echo this is a test" 
if the result like this:
   vulnerable
   this is a test
then, you need to upgrade your bash version.

Just run (as superuser or sudo)
 # apt-get update
 # apt-get upgrade

It will show bash upgrade like this:
 Get:1 http://security.debian.org/ wheezy/updates/main bash amd64 4.2+dfsg-0.1+deb7u3 [1,501 kB]

After I upgrade my bash, the result becames like this:
   this is a test

I use bash version : GNU bash, version 4.2.37(1)-release (x86_64-pc-linux-gnu)

Reference: http://www.debiantutorials.com/how-to-detect-if-your-server-is-vulnerable-to-the-shellshock-bug-and-fix-it/ 

Indonesia Debian Repository (Wheezy)

Instruction

1. copy this configuration to /etc/apt/sources.list

2. choose only one from the options, depend on your location and server availability

3. commented not used options

Configuration source

# do not change

deb http://security.debian.org/ wheezy/updates main

deb-src http://security.debian.org/ wheezy/updates main

# option 1

deb http://kambing.ui.ac.id/debian/ wheezy main

deb-src http://kambing.ui.ac.id/debian/ wheezy main

deb http://kambing.ui.ac.id/debian/ wheezy-updates main

deb-src http://kambing.ui.ac.id/debian/ wheezy-updates main

# option 2

#deb http://kartolo.sby.datautama.net.id/debian/ wheezy main

#deb-src http://kartolo.sby.datautama.net.id/debian/ wheezy main

#deb http://kartolo.sby.datautama.net.id/debian/ wheezy-updates main

#deb-src http://kartolo.sby.datautama.net.id/debian/ wheezy-updates main

# option 3

#deb http://kebo.pens.ac.id/debian/ wheezy main

#deb-src http://kebo.pens.ac.id/debian/ wheezy main

#deb http://kebo.pens.ac.id/debian/ wheezy-updates main

#deb-src http://kebo.pens.ac.id/debian/ wheezy-updates main

# option 4

#deb http://suro.ubaya.ac.id/debian/ wheezy main

#deb-src http://suro.ubaya.ac.id/debian/ wheezy main

#deb http://suro.ubaya.ac.id/debian/ wheezy-updates main

#deb-src http://suro.ubaya.ac.id/debian/ wheezy-updates main

# option alternate 

#deb http://http.debian.net/debian wheezy main

#deb-src http://http.debian.net/debian wheezy main

#deb http://http.debian.net/debian wheezy-updates main

#deb-src http://http.debian.net/debian wheezy-updates main

# Debian 7 (flash player adobe)

#deb http://ftp.de.debian.org/debian wheezy main contrib

# Non Free Repository

deb http://ftp.de.debian.org/debian wheezy main non-free

Installing XFCE4 on Debian Wheezy x64

The steps to install XFCE4 on Debian Wheezy x64 are:

1. To install Xfce, do the following
   # apt-get install xfce4
2. There are many useful utilities that come with Xfce, to install these
   # apt-get install xfce4-goodies
3. You also can install xdm to login in start Xfce
   # apt-get install xdm

Configuring LAN in Debian 7 x64 Minimal CLI Only

For dynamic ip address (DHCP), edit file /etc/network/interfaces, add these lines:

auto eth0
iface eth0 inet dhcp

For static ip address, edit file /etc/network/interfaces, add these lines:

auto eth0
iface eth0 inet static
  address 192.168.1.11 -> change with your lan
  netmask 255.255.255.0 -> change with your lan
  gateway 192.168.1.1 -> change with your lan
  dns-nameservers 8.8.8.8, 8.8.4.4 -> change or add with your name server

Restart your network service run:
# /etc/init.d/networking restart 

Personal linux command references (Debian command)

Note: these are command references for personal usage, you may use them as references freely with your own responsible. No warranty for any damages causing bay these references.

To show model

# dmidecode -s system-version
IdeaPad Gaming 3 15ARH7
16GB DDR5-4800 each slot manufacture tested

To show ram slot

# lshw -class memory
or
# dmidecode -t memory
dmidecode show maximum memory

Using ssh : remote to server using secure channel

$ ssh -l [user_name] [servername_or_ip]
scp : upload to server using secure channel (secure copy)
$ scp [file_source_to_upload] [user_name]@[servername_or_ip]:[full_path_destination_folder]

Using tar.gz 

To compress
$ tar -cvf [file_name.tar] [folder_to_archive]
To decompress from tar.gz
$ tar -xvf [file_name.tar]
$ tar -czvf BoyerMoore.tar.gz  ./BoyerMooreCopyPaste

Using p7zip

decompress
$ p7zip -d ./Kramaning.4.3.7z
compress folder
$ 7z a kramaning.7z ./Kramaning/*

Restart lightdm xfce desktop server

# systemctl start lightdm
# systemctl status lightdm

Install apt-cacher-ng

Server configuration and test

Install apt-cacher-ng

 # apt-get install apt-cacher-ng

Check your server using browser and enter URL 

http://localhost:3142/apt-cacher

Client configuration

Configure apt by creating a new file 01proxy at directory /etc/apt/apt.conf.d/ and add a line Acquire::http::Proxy "http://<IP address or hostname of the apt-cacher server>:3142";

For example, file /etc/apt/apt.conf.d/01proxy contain:

Acquire::http { Proxy "http://192.168.1.10:3142"; };

Installing Epson Inkjet L Series and M Series on Debian Wheezy

Download your printer driver from http://www.epson.co.id/sites/epson_indonesia/support/support.page and select suitable Distro.

Before you install the driver, install its dependency by running this:

# apt-get install lsb

After its completed, you can install your printer driver by running this:

# dpkg -i epson-inkjet-printer-201207w_1.0.0-1lsb3.2_amd64.deb 

For my case, I install L110 driver on Debian Wheezy.

Configure your Printer from your browser or from Applications -> System Tools -> Preferences -> System Settings -> Printers.

NOTE: Driver L100/L200 not compatible with Driver L110/L210 

For L100 use Epson Stylus NX115 (CUPS + Gutenprint v5.2.9) or

For L100/L200 use this driverhttp://download.ebz.epson.net/dsc/du/02/DriverDownloadInfo.do?LG2=PL&CN2=&DSCMI=24156&DSCCHK=95e99b2956fbf8c93b44cbd7a37f94836967528c

Debian 7.1 x64 installing firmware

Debian need firmware installed to make hardware can operated perfectly. During boot time, it informs the user that the system may required particular firmware installed. Here is the steps to install particular firmware:

1. add this line into /etc/apt/sources.list
   # non free
   deb http://ftp.de.debian.org/debian wheezy main non-free
2. run update by issuing
   # apt-get update
3. list available firmware
   # aptitude search firmware
4. install your firmware
   # apt-get install firmware-realtek  firmware-atheros

Installing Openerp 6.1 on Debian 7.1 x64 (old)

Follow these simple step to install and configure Openerp on Debian

1. update your debian
# apt-get update
# apt-get upgrade

2. install gedit
# apt-get install gedit

3. install postgresql 23.9M (version 9.1.9-1)
# apt-get install postgresql

optional install pgadmin3 if use desktop
# apt-get install pgadmin3

4. configure openerp user
# sudo su postgres
$ createuser openerp
as superuser n
create database y
create new roles y
$ psql -l
$ psql template1
# alter role openerp with password 'openerp';
quit from psql and back to root user (\q enter)

5. install python library
apt-get install python-dateutil python-feedparser python-gdata python-ldap \
    python-libxslt1 python-lxml python-mako python-openid python-psycopg2 \
    python-pybabel python-pychart python-pydot python-pyparsing python-reportlab \
    python-simplejson python-tz python-vatnumber python-vobject python-webdav \
    python-werkzeug python-xlwt python-yaml python-zsi


6. download packaged deb and install by issuing this
# dpkg -i openerp_6.1-latest-1_all.deb
it may take sometimes to install pyhton library required by openerp, wait until it finish.

7. edit file /etc/openerp/openerp-server.conf (password in stap 4)
db_password = openerp

8. run openerp service by issuing
# service openerp start

# service openerp restart

9. run openerp client using browser http://localhost:8069

Note:

Default Installation located at

• /usr/lib/pymodules/python2.7/openerp/
• /usr/share/pyshared/openerp

• /usr/lib/pymodules/python2.7/openerp/addons
• /usr/share/pyshared/openerp/html_view

Installing LAMP on Debian 7.1 (Wheezy)

Here are steps to install LAMP on Debian 7.1 Wheezy:

1. Open your terminal as a root (Super User)

2. Installing MySQL

# apt-get install mysql-server mysql-client
set password for root (super user)

3. Installing Apache

# apt-get install apache2

4. Install PHP

# apt-get install php5 libapache2-mod-php5

5. Restart your apache2

# /etc/init.d/apache2 restart

6. Search module

# apt-cache search php5

7. Install other modules

# apt-get install php5-mysql php5-curl php5-gd php5-idn php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl

8. Restart your apache2 using step 5, and test your installation using browser with URL http://localhost

Repairing GRUB UEFI Dual Boot Debian 7.1 x64 and Windows 8 x64

Accidentally I failed to install AMD Catalyst 13.6 beta on my Debian 7.1 x64, and I lost my GNOME. For short, I can't recover my GNOME and I reinstall my Debian 7.1 without EFI mood  (my mistake). The Installer can not detect EFI and the only option to install bootstrap loader is MBR.

I can not start both my Debian and Windows. From Bios, I start boot via EFI DVD to start Debian CD Installer. I choose Advanced Option to fix bootstrap location from MBR to EFI Partition (System Reserved), and follow these step:

1. Update your Debian and run
   # apt-get install grub-efi-amd64
   This command will remove grub package, and choose yes
2. Configure your GRUB using this command
   # modprobe dm-mod
   # grub-install
3. Apply your new grub into EFI Partition
   # update-grub
4. This procedure only fix boot into Debian. To create boot option to load Windows 8 boot manager you need UUID for EFI partition by running
   # blkid
   write down UUID for EFI Partition (it may be label as "System Reserved") with size about 100M-130M.
   for my case UUID is 4842-E4F1
5. edit file /etc/grub.d/40_custom and at the end of file add
        menuentry "Microsoft Windows 8" {
          insmod part_gpt
          insmod fat
          insmod search_fs_uuid
          insmod chain
          search --fs-uuid --no-floppy --set=root 4842-E4F1
          chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
        }
   the file becomes like this:
        #!/bin/sh
        exec tail -n +3 $0
        # This file provides an easy way to add custom menu entries.  Simply type the
        # menu entries you want to add after this comment.  Be careful not to change
        # the 'exec tail' line above.
        menuentry "Microsoft Windows 8" {
          insmod part_gpt
          insmod fat
          insmod search_fs_uuid
          insmod chain
          search --fs-uuid --no-floppy --set=root 4842-E4F1
          chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
        }
6. reinstall and reconfigure your grub by issuing :
   # grub-install
   # update-grub

Done, now I have GRUB to my Debian and option to load Windows 8 Boot Manager

Installing Webmin on Debian 7.1 (Wheezy)

Step to install Webmin on Debian 7.1:

1. Download Webmin installer for Debian from www.webmin.com

2. run as root (superuser)

3. install dependency packages

# apt-get install libnet-ssleay-perl libauthen-pam-perl libio-pty-perl apt-show-versions

4. install webmin

# dpkg -i ./webmin_1.630_all.deb

5. tes your installation using your browser https://localhost:10000

 Note: Don't forget to create webmin admin group and its user :)

How to create a WHM user without an associated domain

To create a user account in WHM that is not associated with a domain:

1. Log in to the server as the root user via SSH.
2. Create a user with the system utility with the following command:
   # adduser [username]
3. Set a password for the user with the following command:
   # passwd [username]
4. Create an entry in the resellers file with minimal permissions with the following command:
   # echo "[username]:all" >> /var/cpanel/resellers
5. Log in to WHM as the root user.
6. Navigate to Home >> Resellers >> Edit Reseller Nameservers and Privileges.
7. Select username from the list, Click Submit.
8. Apply the desired permissions to the user, Click Save.

 Note: replace [username] with Linux user id / login
Src: http://docs.cpanel.net/twiki/bin/view/AllDocumentation/WHMDocs/CreateAccountwithoutdomain
CLOSE INFO

Tomcat 6.x User Roles

file name [tomcat 6 folder]//conf/tomcat-users.xml

Available Rules

• <role rolename="manager-gui"/>
• <role rolename="manager-script"/>
• <role rolename="manager-jmx"/>
• <role rolename="manager-status"/>

WARNING: users with the manager-gui role should not be granted either the manager-script or manager-jmx roles

Example configuration

<tomcat-users>
  <role rolename="manager-gui"/>
  <role rolename="manager-script"/>
  <role rolename="manager-jmx"/>
  <role rolename="manager-status"/>
  <user username="example" password="example" roles="manager-gui"/>
</tomcat-users>

How to install Raspbian Wheezy to SD Card for Raspberry-pi using Debian Machine

Raspberry-pi is a community product for System On Chip (SOC). It's uses ARM Processor with low power usage. We can say, it's absolutely green computing. Unfortunately, the performance was poor, may be we can find more powerful 4, 6 or 8 core ARM with low power usage. 

This is how I install raspbian on raspberry-pi:

1. Download raspbian form official site http://www.raspberrypi.org/downloads/
2. From Debian open terminal as a root privilage
3. If you dont't have image writer to SD-Card, install this pacakge first # apt-get install dcfldd
4. Insert your SD-Card and find out where it's mounted by your Debian
   # dmesg
   [  995.384415] mmc0: new high speed SDHC card at address aaaa
   [  995.384943] mmcblk0: mmc0:aaaa SU08G 7.40 GiB
   [  995.390744]  mmcblk0: p1
5. Unmount SD Card
   # umount /dev/mmcblk0
   umount: /dev/mmcblk0: not mounted
6. Copy your Raspbian image into SD Card
   # dcfldd bs=4M if=[folder_input_file]/2013-09-25-wheezy-raspbian.img of=/dev/mmcblk0
7. Make sure the SD-Card is writen properly
   # sync

Note:

Copying image may take a long time, it's size up to 2.96Gigabyte 

How to Remove REVSCI.NET Cookie from Your Computer

REVSCI.NET is categories as tracking cookies. Be Aware of the Following Tracking Cookie Companions:
allyes.com, webstat.net, Sex.Cookie, activemeter.com, beatle.org.

Tracking Cookies
Normally, cookies, which are small text files that certain Web sites leave on computers to store information identifying users and customize Web site content for them (such as the user’s Web site settings and preferences, a list of visited pages, computer details, and shopping card information), are harmless. However, some cookies may be used to track and transmit browsing preferences or other private information to online marketers and spammers.

To detect / delete revsci.net cookie in Mozilla Firefox

1. From the Tools menu, select Options
2. In the upper section of the Options window, click Privacy
3. In the Cookies tab, click Show Cookies or remove individual cookies link
4. In the Cookies window, enter revsci.net in the Search field and run a search, or you can scroll down the list to check whether the revsci.net cookie is present there
5. To delete the revsci.net cookie:
   
   1. Select it from the list
   2. Press Remove Cookie button

To detect / delete revsci.net cookie in Google Chrome 

1. From the Chrome menu [Google Chrome Menu Button] on the browser toolbar choose Settings
2. Click Show Advanced Settings... link
3. In the Privacy section, click Content settings
4. Click All cookies and site data... button
5. Start typing revsci.net cookie name in the Search cookies field and cookie list will be automatically filtered, or you can scroll down the list to check whether the cookie exists
6. To delete the revsci.net cookie:
1. Hover the mouse cursor over cookie name in the list to highlight it
2. Click X button that appears on the right corner

To block revsci.net cookie in Mozilla Firefox 

1. From the Tools menu, select Options
2. In the upper section of the Options window, click Privacy
1. In the History group choose Use custom settings for history item from the Firefox will field and Click on Exceptions
2. For older Firefox versions in the Cookies tab, click Exceptions
3. In the new Exceptions - Cookies window, enter revsci.net in the Address of Website field and click Block or Disable

To block revsci.net cookie in Google Chrome

1. From the Chrome menu [Google Chrome Menu Button] , on the browser toolbar, choose Settings
2. Click Show Advanced Settings... link
3. In the Privacy section, click the Content settings
4. Click Manage Exceptions... button
5. Enter revsci.net in the Hostname pattern (located at the left corner)
6. Choose Block from the Behavior field (on the right)

Resource: http://www.exterminate-it.com/malpedia/remove-revsci-net