Firefox getting slower and slower?

Here’re some tips to tune and tweak your Firefox when it getting slower and slower ( or upon installation ) :

Modify the firefox config file

It’s easy to modify, just type “about:config” in your firefox browser, then search for the following parameters and change the value ( just like how you change your registry ) :

• network.http.pipelining,  set the value from false to true.
• network.http.pipelining.maxrequests, change the value from default 4 to a higher value i.e. 8
• network.http.proxy.pipelining, set the value from false to true.
• browser.sessionstore.interval, change the value from 10000 (10 secs) to 120000 (2 minutes) to increase the firefox backup the session restore point interval.
• Add the following parameter ( New->Integer ) and set the value to 0, nglayout.initialpaint.delay.

Securing yourself from a world of hackers

*Above = Copy Pasted from other’s post.

Also check out my earlier post Good Password Practices

ASCII Table

Source From : http://www.asciitable.com/

ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@' or an action of some sort. ASCII was developed a long time ago and now the non-printing characters are rarely used for their original purpose. Below is the ASCII character table and this includes descriptions of the first 32 non-printing characters. ASCII was actually designed for use with teletypes and so the descriptions are somewhat obscure. If someone says they want your CV however in ASCII format, all this means is they want 'plain' text with no formatting such as tabs, bold or underscoring - the raw format that any computer can understand. This is usually so they can easily import the file into their own applications without issues. Notepad.exe creates ASCII text, or in MS Word you can save a file as 'text only'

Slow SSH connection in Ubuntu

There is always a problem with Ubuntu’s i.e. very slow SSH connection. For some reasons, there’re some options are being enabled by default and causing either the incoming or outgoing SSH connection very slow or hanged in a range from 15 to 60 seconds.

There’re two major contributors which I know of, than can causing the abovementioned problem.

[1] GSSAPIAuthentication

GSSAPI is a ITEF standard for doing strong encrypted authentication in network based applications. OPENssh uses this API and the underlying kerberos 5 code to provide a alternative means of authentication other than ssh_keys.

For some reasons, this feature is enabled by default since Ubuntu Fiesty, you can disable them globally affecting all users in the /etc/ssh/ssh_config

# SendEnv LANG LC_*
# HashKnownHosts yes
# GSSAPIAuthentication yes
# GSSAPIDelegateCredentials no

[2] Slow or Broken DNS Lookup

Everytime when you log into the OpenSSH server, it would actually perform a reverse-lookup on your IP address. If the DNS lookup timed out, then you’ll having big time of delaying as typically OpenSSH will perform 3 times trying.

All you need to do is add the following line in /etc/ssh/ssh_config

sudo echo "UseDNS no" >> /etc/ssh/sshd_config

Remember to restart the ssh services upon change.

How to use full screen mode in Virtual Box for Linux OS?

First thing, get your Linux OS install in Virtual Box as usual. Am going to use Ubuntu/Debian as example here.

Then, boot up the OS and open the Terminal window :

1. Login using Superuser using

    sudo su

2. Update the aptitude source

    apt-get update

3. Install the packages required :

    a. apt-get install build-essential

    b. apt-get install linux-headers-generic

Once completed, click on the VBox “Devices” menu and “Install Guest Additions”.

Then, go back to the Terminal window :

4. Make a new mount folder,

   mkdir /mnt/vbox

5. Mount the Guest Additions to the newly created folder,

   mount /dev/scd0 /mnt/vbox

6. Install the Guest Additions, depends on either you’re using x86 or 64bit workstation,

cd /mnt/vbox 

 ./VBoxLinuxAdditions-x86.run   

./VboxLinuxAdditions-amd64.run

7. Reboot and you shall able use full screen as you like.

Another Cool iPad Apps!!

iDisplay

Now, you can extend your desktop to your iPad/iPhone!! Just like, you’re extending them to projector, TV etc.

Check this out….it works!

 

LogMeIn Ignition

This apps, allows you to remote control your desktop, just like well known VNC, teamviewer! Another best part is, they works over NAT from different networks without the needs to configure the proxy, port forwards etc. Now, you can switch on your desktop/laptop and remote control them using your iPad!

Some must have cool iPad apps!

Here’re some cool iPad apps, that you must have one in your dock…

Weather+ HD for iPad 

Flipboard

One of the coolest personal social media that allows you to read news, photos and updates sharing on the Facebook and Twitter. MUST TRY!

Friendly for Facebook

Pulse News Reader

Allow you to read your RSS feeder and link to your Google reader!

土豆网for ipad