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How to block advertising tracking in Google Chrome

Task: do remove google tracking in Google Chrome and browsers based on it (for example, yandex-browser).
Despite the fact that Google is called a “corporation of good”, privacy still does not hurt.

If you agree with this, then follow these steps:
You must go to the “Settings” of the browser, as shown in the figure below.

bloktrack1

Next – select the link “Show advanced settings” at the bottom of the page

bloktrack2

Put a mark in the item “Send a ban on tracking with outgoing traffic” and click “OK” in the window that appears.

bloktrack3

Everything, now you can close the settings tab and use your browser.

How to configure the openvpn client on linux (debian, ubuntu, mint)

and also make the prohibition of traffic leaks past vpn

!!
in Debian: everything needs to be done as root
in Ubuntu and Mint, you need to add sudo to all commands.

1. Setup openvpn client

apt-get install openvpn

2. Make sure that the openvpn clien version is 2.1 or above

openvpn --version

3. Start
although the easiest way is to run from the line with the specification of the configuration file

openvpn --config client.ovpn

but we will do it in the Debian way
– move the client files (crt, key, ovpn) to the /etc/openvpn directory

mv dir-with-crt-key-ovpn-files/* /etc/openvpn

(after that you need to check that the configuration file is called client.conf – if not – rename)
– start the service

/etc/init.d/openvpn start

With the following command you can see the process

ps aux | grep openvpn

You can also check by going to the sites that define ip
now works, there is a little bit to adjust

4. Configuring startup on reboot
install sysv-rc-conf package

aptitude install sysv-rc-conf

run the command sysv-rc-conf and set or disable from 2-5 levels of the mark on the service openvpn
(Similarly, you can disable the network manager, if necessary)
Exit the utility with the “q” command

5. In order for the traffic not to go past vpn, we’ll run openvpn with the script:

create and fill the script:

echo '#!/bin/bash' > /etc/openvpn/openvpn.sh
echo '/etc/init.d/openvpn restart && sleep 5 && ip r d `ip r s | grep default`' >> /etc/openvpn/openvpn.sh

make it executable:

chmod +x /etc/openvpn/openvpn.sh

Now you can run it from the command line by simple typing

/etc/openvpn/openvpn.sh

or

sh /etc/openvpn/openvpn.sh

as well as double-clicking

How to add an S/MIME certificate to Mozilla Thunderbird

To do this, open the mail client, right-click on the user “settings”:

image01

Further – it’s easy:

image06

  • choose “security”
  • then specify the path to the s/mime certificates files
  • press “OK”.

Use, as shown in the picture (when composing the letter):

image08

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