Category Archives: Linux

Security – AdGuard browser tool .

This browser tool run with your browser into PC/MAc, Linux, Android and Windows and other .
The development team tell us about Windows version :
AdGuard for Windows is not just another ad blocker, it is a multipurpose tool that combines all necessary features for the best web experience. It blocks ads and dangerous websites, speeds up page loading and protects your children when they are online.
You can download it from official website.

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Security – ESET SysRescue Live distribution .

The development team come with this intro :
Linux distribution that can scan for malware and clean infected files. It runs from a CD/DVD or a USB device, independently of the host operating system, but has direct access to the disk and file system. This makes it possible to remove threats that under normal operating conditions might be impossible to delete.
I used Virtual Box – version 5.2.4 r119785 (Qt5.6.2) to test it.
The result of running this iso image come with this tools:

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Linux – netstat command .

This tutorial come to show you how to use the netstat command with linux operating system.
To list out all the connections tcp, udp & unix on a system, we can use ‘a’ option with netstat command:

To list only the tcp connections our system, use ‘t’ options with netstat:

To list out only the udp connections on our system, we can use ‘u’ option with netstat:

To only list out Unix socket connections, we can use ‘x’ options:

To get list of all connections along with PID or process name, we can use ‘p’ option & it can be used in combination with any other netstat option:

To speed up our output, we can use ‘n’ option as it will perform any reverse lookup & produce output with only numbers (since no lookup is performed, our output will much faster):

To print only the listening ports , we will use ‘l’ option with netstat (it will not be used with ‘a’ as it prints all ports):

To print network statistics of each protocol like packet received or transmitted, we can use ‘s’ options with netstat:

To display only the statistics on network interfaces, use ‘i’ option:

To display multicast group information, we can use option ‘g’ ( that print the multicast group information for IPV4 & IPV6):

To print the network routing information, use ‘r’ option:

To get continuous output of netstat, use ‘c’ option:

To filter a single port connections, we can combine ‘grep’ command with netstat:

To use multiple commands with netstat.
Example: count the number of connections with CONNECTED value, we can further add ‘wc’ command with netstat and grep command:

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Dictionary Anywhere – addon .

This addon tool help you with translation issues.
The official website tell us :

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“Dictionary Anywhere” provides access to a floating multilingual Google Translate panel on any webpage. This add-on injects an ifram containing Google Translate only when a translation is requested. To request a translation, select a word or phrase and then click on the bubble that appears on top of the selection area. Using this extension you can get in-page translation as well as pronunciation. At the bottom of the iframe, there are two links to open the desktop version of Google Translate and Google Search prefixed with ‘define’ keyboard.

This addon can be used with firefox , chrome, and opera browser.

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MultiBootUSB – the tool for multiple live operating systems.

This tool help you to put multiple boot operating systems into your USB drive.
You can used into your Windows or Linux OS.
This MultiBootUSB tool help you with this tasks:

  • install multiple live Linux distros and other operating systems to a USB disk;
  • make it bootable without erasing existing data;
  • uninstall installed OSes later;
  • write ISO images directly to a USB disk (GUI for Linux dd command);
  • boot ISO images and USB disks directly without rebooting your system using QEMU;
  • boot USB on UEFI/EFI systems through GRUB2 bootloader support (limited support);

What you need to make this working well:

  • One formatted USB disk with :
    • FAT32, NTFS, ext2/3/4 or Btrfs filesystem. However;
    • the FAT filesystem is recommended and ext2/3/4 or Btrfs filesystems will only work under Linux;
    • try to keep single partition (primary) to avoid later problems;
  • Your ISO files of live Linux distros of your choice;
  • the latest release of MultiBootUSB from official website;

The official website come with a good tutorial about how to use it.

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