How to Protect Your Wi-Fi Router From Hacking Using Simple Tricks



These are the times when anything and everything digital is prone to hack. From ATM to connected cars, and from satellites to the so-called secured government offices, hackers are laughing all the way. So, the blatant use of the specification “unhackable”, which today, has become the USP for the products by almost all the brands, doesn’t come as a surprise.
Many people are now aware and take good measures for their online safety, but safeguarding the Wi-Fi router still lies low at the priority list of the most. The reasons may range from lack of knowledge to mere carelessness, but your home router’s security is as important as your front door’s because it is the foremost target of hackers trying to invade through your system.
Now, as you might be knowing How to Increase Your Wi-Fi speed by choosing correct Wi-Fi Channel, here are the simple ways to strengthen your Wi-Fi router’s security from hack attacks.
1. Enable WPA2 (WI-Fi Protected Access)
Ok, this is the first and foremost thing to do for everyone who has or plans to buy a router. It provides encryption to your system and its variant WPA-PSK can be found in home networks. Those who use old routers, they might be having WEP or Wired Equivalent Privacy security, and trust us, it is no better than zero security.
2. Create a Strong SSID Network Name
Do not use the router’s default network name like D-Link or Netgear. Hackers have specific tools like rainbow table to bust into your network just by knowing your default SSID name.
3. Use a Strong Password or Passphrase Maybe
Well, no talk on security can circumvent the importance of strong passwords. Do you know if you increase your password’s length to just one more character, the chances of the hacker cracking your code with probabilistic ways are reduced by hundreds. (I’m just being modest, it is way too high).
4. Firewall of Your Router
Well, if you have it, then Use it. It is the router’s inbuilt protection system to make it somewhat obscure from the hacker’s view. Also, new routers come with ‘stealth mode’ firewalls.
5. Turn Off UPnP
The Universal Plug and Play protocol (UPnP) which is meant to establish easy connection with devices in the vicinity can make your router vulnerable and make it a potential target for the hackers (results could be DoS attacks as well).
Not all the routers are susceptible to UPnP exploitation, but why take the risk.
6. Use VPN
A personalized VPN service for your router is the way to go if you are willing to shed a few bucks for your important data. VPN works by giving your location anonymity on its server and even creates its own firewall to protect your network traffic.
Also, VPN is a better alternative than the router’s remote management feature which exposes its web-based interface on the Internet.
7. Enable Logging Feature
The logging feature in your router keeps an account of the log attempts  from all IP addresses and give you all the connection attempt details. This could help you monitor any ongoing suspicious activity.
8. Use Security Services
You can also use cloud-based security services like OpenDNS to screen the traffic through your router. You simply have to configure your network to the online service’s nameserver rather than those used by your ISP.
These web-based services help you to monitor as well as encrypt the traffic through your router.
Although, you can’t make your device hack proof, but with these simple techniques you could make your router safer than it was before.
Wednesday, 30 September 2015
Posted by Sivapriya
Tag :

Configure Terminal Server

Configure Terminal Server



1. Configure an IP address on the ethernet interface
cisco(config)# int fa0/0
cisco(config-if)# ip add 192.168.1.50 255.255.255.0
cisco(config-if)# no shut

2. Create a loopback interface
cisco(config)# int lo0
cisco(config-if)# ip add 1.1.1.1 255.0.0.0

3. Configure the line based on the “show line” output. 
* If enabled, the port will be accessible through the network on TCP port 20xx where xx is the TTY of the port on the router
cisco(config)# line 1 16
cisco(config-line)# no exec  //unwanted signals from the attached device do not launch.
cisco(config-line)# exec-timeout 0 0 //disable the line timeout period
cisco(config-line)# logging synchronous
cisco(config-line)# transport input all 

4. Configure default route
cisco(config)# ip route 0.0.0.0 0.0.0.0 192.168.1.1
cisco(config)# ip default-gateway 192.168.1.1  
// ip default-gateway is configured as well in case routing is not enabled. E.g. the terminal server is in ROMMON mode as a result of a bad reboot after power outage.

5. Enable telnet line
cisco(config)# line vty 0 4
cisco(config-line)# password cisco
cisco(config-line)# login

6. Configure host and line mapping
*e.g. Router A is connected to line 1
cisco(config)# ip host RouterA 2001 1.1.1.1



Thursday, 2 July 2015
Posted by Anonymous

How to use VPCS with GNS3 in Ubuntu

How to use VPCS with GNS3 in Ubuntu

1.Download vpcs from here VPCS 0.20a

2.Extract and look for vpcs32.linux(for 32-bit systems) and vpcs64.linux (for 64-bit systems)

3.Fire up the Terminal and issue following command 
chmod +x vpcs32.linux

4.Then we'll open and configure startup.vpc in gedit 

gedit startup.vpc 


5.Now configure startup.vpc according to your requirement. For example I'll add just two hosts for this tutorial.
Host 1 (VPCS1) with Ip 192.168.1.10/24 and 192.168.1.99 as its gateway.
Host 2 (VPCS2) with Ip 192.168.1.11/24 and 192.168.1.99 as its gateway.

** add # to the rest of the lines.


6.Now lets start VPCS by issuing the following command within the terminal.
 ./vpcs32.linux

7.Use show command to see all the configured ip addresses.


8. We are done with VPCS configuration part, minimize the vpcs window, and lets configure port settings for VPCS on GNS3.

Fire up GNS3 (run gns3 as a root).

9.This is a optional step where I'll be adding symbols to PC hosts.


10.Add computer symbol from 'available symbol' to 'customized nodes'
    on name = anyname ie, PC1
    on type  = Cloud
    click ok
Do the same for PC2


11.Drag and Drop PC1 and PC2 into the GNS3 Workboard.
    Double click on PC1
    click on 'C1'
    go to tab 'NIO UDP'
    hold....
    go back to Step 7
    Check the LPORT and RPORT

12.On Local port add rport value
    on Remote port add lport value
    on Remote host add 127.0.0.1
    click add
    Do the same for PC2 (again check the respective ports)



13. Lets add a Ethernet switch to the GNS3 workboard and check the connectivity between the two hosts.
  

14. Maximize vpcs window and lets ping to each host to check the connectivity between them.
     To navigate from 1 pc to another, simply type the number


As you see, a successful connectivity has been established between the two hosts.  

Wednesday, 1 July 2015
Posted by Anonymous

Enable SSH in Switch And Router

Enable SSH in Switch And Router


Assuming the IP address, enable password and default route are in place, the additional steps needed are as follows:

1. Configure a domain name
cisco(config)# ip domain-name cisco.com

2. Configure the RSA key generation for encryption
cisco(config)# crypto key generate rsa
* it may prompt user for the key length generated in the range of 360 to 2048. Default is 512-bit.

3. Configure authentication method
a) Using local database
cisco(config)# username cisco password cisco

OR

b) Using Radius server
cisco(config)# aaa new-model
cisco(config)# aaa authentication login Radius_Server group radius
cisco(config)# radius-server host 192.168.1.155

4. Configure the terminal line
cisco(config)# line vty 0 4
cisco(config-line)# login local                                            // using local database

OR

cisco(config-line)# login authentication Radius_Server          //using radius server
cisco(config-line)# transport input ssh

Monday, 29 June 2015
Posted by Anonymous
Tag :

How To Run Linux Router Vyatta in GNS3

How to run Linux Router Vyatta in GNS3

What is the Vyatta ?
Vyatta is bringing innovation and affordability to the networking industry by delivering advanced routing and security in a software-based network OS that scales from the branch office to the service provider edge. Vyatta has decoupled networking software from proprietary hardware allowing users to leverage the price and performance advantages of standard x86-based hardware and components as well as Citrix XenServer and VMWare virtual or cloud environments.
http://www.vyatta.com/

In this tutorial brezular shows us how to install Vyatta 6.1 Core LiveCD on Qemu image and run it from GNS3.

1. Download Vyatta Core 6.1 LiveCD iso (You need to fill short questionnaire for Vyatta download)

Vyatta download    http://www.vyatta.com/downloads/index.php

2. Create Qemu qcow2 image

/usr/local/bin/qemu-img create -f qcow2 ./vyatta6.1vc.img 1G

3. Boot Qemu image with Vyatta 6.1 LiveCD

 /usr/local/bin/qemu -boot d -hda ./vyatta6.1vc.img -cdrom ./vyatta-livecd_VC6.1-2010.08.20_i386.iso -m 512

login/password: vyatta/vyatta

4. Install Live CD

To install Live CD to Qemu image enter this command (as user vyatta)

install-system

The tutorial is opened and it walk you through installation process:

Would you like to continue? (Yes/No) [YES]: Enter

Partition (Auto/Union/Parted/Skip) [Auto]: Enter

Install the image on? [sda]: Enter

This will destroy all data on /dev/sda. 
Continue? (Yes/No) [No]: Yes

How big of root partition should I create? (1000MB – 1074MB) [1074]MB: Enter

I found the following configuration files 
/opt/vyatta/etc/config/config.boot 
Which one should I copy to sda? [/opt/vyatta/etc/config/config.boot] Enter

Enter password for administrator account 
Enter vyatta password: your_password 
Retype vyatta password: your_password

Which drive should GRUB modify the boot partition on? [sda]: Enter

Done! 
Now you successfully install Vyatta.

5. Adapt Vyatta NIC behavior to GNS3 Qemuwrapper

GNS3 qemuwrapper always changes MAC address of presented NIC during the boot of Qemu instance. Vyatta is programmed to save MAC address of existing ethernet interfaces. If MAC address of particular NIC is changed (by GNS3 qemuwrapper) Vyatta preserves the interface with old MAC and create new interface with new MAC. 

Each time Qemu instace is restarted the number of interfaces doubled.

These are my steps how to solve it (it must be a better solution but I didn’t find any with Google search):

a) Enable root account on Vyatta 6.1

thank to Tim Peerlings blog   http://www.timpeerlings.nl/enable-root-account-on-vyatta-6-1/

vyatta$ configure 
vyatta#set system login user root authentication plaintext-password test 
vayata# commit 
vyatta# save

exit

Now you should switch to user root:

su 
Password: test

b) Remove vyatta_net_name script (root account needed)

cd /lib/udev/ 
mv ./vyatta_net_name ./vyatta_net_name_backup 
rm ./vyatta_net_name

6. Setup serial console login 

thanks to Petr’s blog    http://linux.xvx.cz/2009/08/debian-with-grub2-and-serial-connection/ 

This configuration redirects output to serial ttyS0 and allows you to use Console in GNS3. 
Login as root with su command and modify grub configuration file:

vim /etc/default/grub

Change the lines in configuration file according to these lines
# This file is sourced by update-grub, and its variables are propagated 
# to its children in /etc/grub.d/

GRUB_DEFAULT=0 
GRUB_TIMEOUT=0 
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` 
GRUB_CMDLINE_LINUX_DEFAULT=”console=tty0 console=ttyS0,9600n8″

# Uncomment to disable graphical terminal (grub-pc only) 
GRUB_TERMINAL=serial 
GRUB_SERIAL_COMMAND=”serial –speed=9600 –unit=0 –word=8 –parity=no –stop=1″

# Uncomment if you don’t want GRUB to pass “root=UUID=xxx” parameter to Linux 
#GRUB_DISABLE_LINUX_UUID=true
Now update grub with command:

update-grub

7. Setup GNS3 for Vyatta qemu image

- Start GNS3 
- Edit-> Preferences-> Qemu-> Qemu Host

Check Kvm option only if your processor supports hardware virtualization. Check Kqemu option only if it is installed and running. If you are not sure with these options let them unchecked otherwise Qemu will be not started.

You need also set Qemu general settings like path to qemu, qemu-img and qemuwrapper.

- Edit-> Preferences-> Qemu-> General Settings

Login to Vyatta:
login/password: vyatta/your_password

8. Conclusion
Brezular has  made a video to prove functionality of Yvatta Qemu image. In this video three Vyatta Qemu instances run RIP routing protocol.

Tuesday, 23 June 2015
Posted by Anonymous
Tag :

How to set up auto reply in outlook 2003/2007/2010?


How to set up auto reply in outlook 2003/2007/2010?


2. In Outlook 2003, select File >> Save As... from the menu; In Outlook 2007, click the Office button.

3. Select Outlook Template under Save as type:.

4. Select Tools >> Rules and Alerts... from the menu in Outlook window.

5. Click New Rule...

6. Select Start from a blank rule and make sure Check messages when they arrive is selected, and click Next.

7. Check Where my name is in the To box under Select condition(s), and clickNext.

8. Check reply using a specific template under Select action(s), and Click ona specific template under Edit the rule description.

9. Select User Templates in File System under Look In:, select the template that created before and click Open. Click Next.

10. Check Except if it is an Out of Office message under Select exception(s), and click Next.

11. Type a name for your auto reply rule under Specify a name for this rule, and click Next.


Monday, 22 June 2015
Posted by Anonymous

Learn Ethical Hacking in 16 hours

About the Course


This level will start totally from core basics. Here we will be more focused on understanding what exactly a computer is and how it functions as per software perspective. It is totally like if you want to perform something unusual, you need to understand the system more than a normal user. Even if you are not from computer engineering background, this course aims to teach from scratch.

After that we will perform some real-life hacking techniques and we will excel towards the path an ethical hacker does.

Topics Covered

The course contents are described below:

Module 0 -Some pre-requisite setup required for hacking
• Operating System Introduction
• Live CD Operating Systems and Distributions
• Introduction to Virtualization
• Implementing Virtualization
• Basics of Networking
• Implementing Networking Concepts in Virtualization
• Setting up PC for hacking practice

Ethical hacking Concepts
• Module 1 - Introduction to Ethical hacking
o Difference between hacking and Ethical Hacking
o Types of hackers
o Phases of conducting hacking
o Case studies

• Module 2 -Ethics and Rules
o Hackers and hacking methodology
o Malicious hacker strategy
o Steps to conduct Ethical hacking
o Hiding your identity while you hack

• Module 3 -Information gathering and Scanning
o Get to know how hackers gather information about the target
o Information gathering on websites
o Scanning website
o Finding admins

• Module 4 -Google Hacking
o What is Google?
o Using google as hacking tool
o Finding vulnerability website using Google
o Using special operators


o Live attacks performed by malicious hackers.

• Module 5 -Scanning using tools
o IPScanner
o Nmap
o Generating reports.

• Module 6 -Sniffing
o What is sniffing
o Types of sniffing
o Using weakness of hardware device
o Using sniffing to get sensitive data
o Man in the middle attack

• Module 7 -Introduction to Malware(Malicious Software)
o Malware Unleashed
o Detailed Study of Virus, Worms, Trojan Horse
o Technique to check whether your antivirus is working properly or not.
o How anti-virus work

• Module 8 -Introduction to Cryptography
o Encryption
o Decryption
o Demo on Cryptography
o Creating secured password protected area in Harddisk

• Module 9 -Trojans
o Creation of Trojan
o Hiding Trojan in a legitimate program
o Gaining control on others system.
o Detection and removal of Trojans
o Live hacking in LAN Environment

• Module 10 -Rootkits
o Defining rootkits
o Identifying rootkits in system
o Removal and avoidance

• Module 11 -Email Hacking
o Tracing an email
o Email bombing
o Using phishing page
o Keyloggers

• Module 12 -System Hacking
o Windows Password hacking
o Steganography
o File hiding technique

• Module 13 -Social Engineering and Clearing the Tracks

Bonus level – Ethical hacking implementations
Be a super spy like tom cruise of mission impossible.
• Self-accessible webcam
• Webcam surveillance system
• Find your stolen laptop
• Make your own laptop anti-theft system
• Phone call forgery
• Creating a fake website of a legitimate website
• Creating and tracking of what user is performing in the system

21 ways to hack and secure email

• Normal ways to hack email account remotely
• Local ways to hack email account
• Advanced ways normally done by detective agency
• Email mass spreading ways
• Email password and data security
• Using anonymous mails

Who should attend

Anyone who is passionate to learn something different.
Anyone who want to be different in the field of IT.
Anyone who wants to defeat bad hackers.
Anyone who wants to secure yourself from the cyberspace attacks.

Pre-requisites

All you must know how to surf the internet and email.
Networking knowledge can add an advantage

What you need to bring

Laptop (Preferred)."

Key Takeaways

By the end of the day you will be well equipped to defeat bad hackers.
Study Material
2 DVDs containing tools for practicing hacking demonstrated with videos.
You will get a different identity in the field of IT.
Lots of friends and a team.

Friday, 19 June 2015
Posted by Unknown
Tag : ,

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