In Public Wi-Fi environment we always connected for any
reason. But you know that eavesdroppers can capture information traveling over
those networks.
Here is some simple steps to protect our system from this
Firewall
on:
To turn Windows Firewall on , select the Start button > open Windows Defender Security
Center > Firewall & network protection > choose a network profile
> and then under Windows Firewall turn it on or off.
In Linux system Firewall run as a ‘Firewalld’ daemon. To
check the firewall status we can use following command:
root@rhel7 ~# systemctl status
firewalld
We can start firewall service :
root@rhel7 ~# service firewalld start
If it is not automatically start at the booting time so we
can use following command :
root@rhel7 ~# systemctl enable firewalld
System update:
To update
Windows 7, 8, 8.1, and 10 Operating System:
- Open Windows Update
by clicking the Start button in the lower left corner. In
the search box, type Update, and then, in the list of results,
click Windows Update.
- Click Check
for updates, and then wait while Windows looks for the latest updates
for our computer.
- If We see a message
telling We that important updates are available, or telling We to review
important updates, click the message to view and select the important
updates to install.
- In the list, click
the important updates for more information. Select the check boxes for any
updates that We want to install, and then click OK.
- Click Install
updates.
In Linux
environment
For Red Hat Enterprise Linux 7,
register the system using RHSM as described in Registering the system with the Subscription Manager. Then update the system according to
instructions in Applying package updates on Red Hat Enterprise Linux
Browser update:
Internet Explorer
Select
Internet Explorer.
Click on
the gear icon in the upper right corner.
Select
About Internet Explorer.
Check the
box next to Install new versions automatically.
Click
Close.
Mozilla
Open the Mozilla browser.
Click
the Open menu button in the upper right-hand corner of
the screen.
In the menu
that appears, click the Open Help Menu button at the bottom.
Select About Firefox.
The window that appears will automatically check
for updates and show We the current version of Firefox. If an update is
available, there will be an option to install the update.
Chrome
Open the Google chrome browser.
Click the Customize and control Google
Chrome button in the upper right-hand corner of the screen.
From the drop-down-menu that
appears, select Help, then select About Google Chrome.
The window that appears will automatically check
for updates and show the current version of Chrome. If an update is available,
there will be an option to install the update.
Anti virus
update:
The majority of
new anti virus programs (programs or computers purchased after the year 2000)
enable users to update their anti virus program through the software. Open the
anti virus program and look for "Update", "Check for
updates", "Live Update", or something similar.
Use VPN :
A VPN secures the private network, using encryption and
other security mechanisms
to ensure that only authorized users can access the network and that the data
cannot be intercepted. This type of network is designed to provide a secure,
encrypted tunnel in which to transmit the data between the remote user and the
company network.
We can use a small and easy VPN system in this scenario.
Create a unused default Gateway
Now we can setup a VPN connection easy way:
Right-click on the network icon in the
system tray .Select Open
Network and Sharing Center.
Click on Manage network
connections (Windows Vista) or Change adapter settings (Windows
7).
Press the Alt key to
show the File Menu and click File > New Incoming
connection… .
Select who We'd like to give VPN access
to and/or create custom accounts by clicking on Add someone.. Click on Next.
Select Through the Internet,
and click Next.
Select the protocols We want to enable
for this connection. We'll likely want to select Internet Protocol
Version 4 (TCP/IPv4), so remote users receive an IP address and can access
the Internet and/or network. Plus if We want the remote user(s) to access file
and/or printer shares, select File and Printer Sharing for Microsoft
Networks. When we’re done, click Allow access.
On the next window, click Close.
Now We need to access the properties of
the newly created incoming network connection and define the IP address range
for VPN clients:
On the Network Connections window,
double-click Incoming Connections.
Select the Networking tab
and double-click Internet Protocol Version 4 (TCP/IPv4).
Select Specify IP addresses and
then enter a starting and ending address that's within range of local subnet but not conflicting with the
DHCP range. For example, if our router's IP is 192.168.50.1, We might enter
192.168.50.50 to 192.168.50.59 which would support 10 clients. If We want
clients to be able to assign themselves an IP, select that option.
Click OK on both
dialog boxes to save the changes.
We can use NordVPN, PureVPN for
advance use.
In Linux environment we can use these steps:
Open Network
Connections window,
clicking the Add button
and selecting a type of VPN from the VPN section of the new connection list.
Right-click on the NetworkManager applet icon in the Notification Area and
click Edit
Connections. The Network Connections window appears.
Click the Add button.
The Choose a Connection Type list appears
Select the VPN protocol from the Choose a Connection Type list.
After selecting the correct one, press
the Create button.
The Editing
VPN Connection 1 window then appears.
Right-click on the NetworkManager applet icon in the Notification Area and
click Edit
Connections. The Network Connections window appears.
Select the connection you want to edit and click
the Edit button.
Connection
name — Enter a descriptive name for
your network connection..
Connect
automatically — Check this box if you
want NetworkManager to auto-connect to this connection when it is
available
Available
to all users — Disable it
Configure the VPN Tab :
Gateway-
The name or IP address of the remote
VPN gateway.
Group name-
The name of a VPN group configured on
the remote gateway.
User password-Enter the password used to authenticate with the
VPN.
Group password-
Enters the password used to
authenticate with the VPN.
User name-
Enter the user name used to
authenticate with the VPN.
Verify
Public wi-fi :
Some time Intruders attack easily with public, insecure and
open wi-fi environment. They use the fake SSID. We should check it carefully .I
just give We a example. Like the original SSID is Rel40 and fake is Rel4o . So
be careful.
Avoided the website where we share our personal database
like social Networking site or Bank site .
Use SSL encryption and Certificates
Authority (CA) and avoid Money transfer
Browser has the built-in
encryption capabilities that can ensure We that the data is protected using the
most secured encryption technology. We will get sure by seeing into the address
bar of our browser as it will get changed from “http://
to https://”, the inclusion of “s” is due to the use of
SSL certificate. In addition to this We will also notice a small lock icon in
the status bar at the bottom of the window.
Use HTTPS everywhere. Yes it’s
good but all sites will not accept but we shpuld try this:
HTTPS Everywhere Version 5: Sixteen
New Languages and Thousands of New Rules | Electronic Frontier
Foundation
HTTPS Everywhere |
Chrome Web Store
HTTPS Everywhere |
Firefox Add-Ons
There are many trusted services
over the Internet like, VeriSign, Geo Trust, Comodo, Thwate, Rapid SSL, etc.
engaged in offering We reliable and trusted security services. The web sites
that use their services will display the logo of the services which they have
employed on their web site to make its information safe and secure from the
phishing attacks. By double click in the address bar of our browser, it will
display We the information regarding the certificate like, from which
certificate authority (CA) the certificate is issued, certificate issued to the
party, validity period of the certificate.
Protect or remove sensible data
Yes, it is very simple and good practice. If you have just
some important and confidential data you can cut-paste all this to your
external hard drive or other third party media and then remove it from your
main accessing system ( your LAPY which you are using in you public Wi-Fi
environment )
Secure Email browsing
When you
check your email, try to login via the Web browser and ensure that your
connection is encrypted (again, look for https at the
beginning of the URL). If you use an email client such as Outlook, make sure
your POP3 or IMAP and SMTP accounts are configured with encryption turned on
Turn
off Wi-fi when not used
It
is a basic rule that if you don’t need something connected to a network, don’t
connect it. When you’re finished working online, turn Wi-Fi off on your laptop,
tablet, or Smartphone.
