Category: Open Source

Categories
Open Source Web

“Heartbleed” Bug: How to check if server is venerable

Cryptographically secure pseudorandom number g...

‘Heartbleed’, A major new vulnerability in the open software OpenSSL could let attackers gain access to user passwords and even fool people into using bogus versions of Web sites!

While the scope and size of the damage isnt clear, the fact that it has hit some of the major websites is a huge cause of worry.

Here is how to check if a website is venerable to this bug:

  1. Visit the following webpage: http://filippo.io/Heartbleed/
  2. Type in the url of the website you want to check in the space provided
  3. Hit Go! (and pray)

 

Categories
Device Hardware Linux Open Source Solutions Ubuntu

Fixing USB Keyboard & Mouse Boot Problems in Ubuntu

USB Cables
USB Cables (Photo credit: incurable_hippie)

Sometimes on startup, Ubuntu does not recognize my USB Keyboard & Mouse. This problem is frustrating as Windows seems to recognize them.

It took me a while to recognize the root of the problem was with the USB 3.0 ports on the Motherboard. By moving the usb connections to the USB 2.0 ports on the motherboard this problem was solved.

Problem: USB Keyboard and Mouse dont work on boot up.
Solution: Move the connectors to the devices from a standard USB 3.0 port to standard USB 2.0 port(check with your motherboard manual for specifics)

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Categories
Chrome Open Source Web Windows

How to Change Proxy Setting in Google Chrome

google chrome
google chrome (Photo credit: toprankonlinemarketing)

Google Chrome uses the same connection & proxy settings as Windows. Changing these settings will affect Google Chrome as well as Internet Explorer and other Windows programs.

Here is how to change the proxy settings in Google Chrome:

  1. Click on “Customize and Control Google Chrome” menu (Located to the right of the address bar)
  2. Click “Options” button.
  3. In “Google Chrome Options” window select ‘Under the Hood’ tab.
  4. In the ‘Network’ section, click the “Change proxy settings” button.
  5. This will open another window.  In the “Internet Properties” window click “Lan settings” button.
  6. Under “Local Area Network (LAN) Settings” window click on the Proxy server for your LAN” and enter your proxy settings.
  7. Click OK and Apply to save the settings.
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Categories
Firefox Open Source Web

How to Change Proxy Setting in Firefox

Image representing Firefox as depicted in Crun...
Image via CrunchBase

Connecting to a proxy server is a very common requirement at most business establishments. To use Firefox through a proxy it must first be configured to do so. Here is how to do it:

  • Click the “Firefox” menu. Hover over “Options”, and then select “Options” from the submenu.
  • Open the “Advanced” category. Click on the “Network” tab.
  • Click the “Settings” button. This will open the “Connection Settings” window.
  • Choose “Manual proxy configuration”. This will allow you to enter information in the fields.
  • Enter your proxy information. Enter the proxy server that you are connecting to in the “HTTP Proxy” field. If you need to enter a specific port, enter it into the “Port” field.
    If you are connecting to a different FTP proxy, enter it into the “FTP Proxy” field. If you want to use one proxy server for all of the protocols, check the box underneath the “HTTP Proxy” field.
  • Press “OK” to save your changes. You may need to restart Firefox for the changes to take effect.
Categories
Linux Open Source Solutions

ssh-copy-id – Perform SSH Login Without Password

If you regularly ssh to same system, ssh-copy-id allows you to login to the system directly without having to type the password each time. ssh-copy-id is a small script which copies your ssh public-key to a remote host. It appends the key to your remote authorized_keys enabling you to login without having to type your password each time.

Use it by running the following command: ‘ssh-copy-id tech@192.168.1.1‘ where ‘tech’ is the username of the remote system and ‘192.168.1.1’ its IP address. The command will ask you for the remote machine‘s password(one last time).

$ ssh-copy-id tech@192.168.1.1
tech@192.168.1.1’s password:

Now try logging into the machine, with “ssh tech@192.168.1.1“. You should get the remote systems command prompt.