Category Archive: System Security

Jan 02

Changing time stamp of a file in linux

Most of us would have thought of changing the  time stamp of a file, well its done using a command that we would have used several time,  but might have never thought of checking its manual. I was surprised when I saw it for the first time, as I have been using this command since …

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Apr 12

Installing Flash Player in Ubuntu

We can install flash player in ubuntu as follows : 1. Run as root $sudo -i 2. Install flashplugin-installer # apt-get install flashplugin-installer   Flash player will be installed successfully.

Apr 04

Changing xfce themes


Follow the given steps to change your XFCE theme 1. Download theme you can download it from 2.Copy it in /usr/share/themes/ directory $ cp  /PATH_TO_THE_FILE  /usr/share/themes/ 3.Extract the file $ tar -xvzf FILE_NAME for tar.gz file or $ tar -xvf FILE_NAME for tar.bz2 file or unzip FILE_NAME for zip file 4. Open …

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Mar 28

Executing a linux command in background/foreground using terminal

  Executing a Linux command silently or in background While working on terminal we can make a command to execute in background, so that we can work something else on that terminal. There are two ways to do so: 1. Directly executing the command using “&” operator. Command will be executed like $ COMMAND & …

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Mar 14

Tor in Android – Orbot

  Tor is a network of virtual tunnels that allows people to access internet anonymously without compromising their privacy. Tor bounces your encrypted traffic several times through computers around the world, instead of connecting you directly like VPNs and proxies. It might take longer but security provided by it is  worth waiting. Tor is considered …

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Feb 12

Active ports on your system

To check active ports on a system we use netstat command.   To check active TCP ports, command is : $netstat -tnlp   To check active UDP ports, command is : $netstat -unlp   Further if you want to check kernel’s routing table, command is : $netstat -r   To view active interfaces, command is …

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