Ubuntu

Ubuntu 10.0.4 | Slow Internet Browsing

Just installed Ubuntu 10.0.4 on a new Dell System and was experiencing slow browsing speeds with firefox on a 10Mb cable connection, a google search revealed the following (Have yet to try though – I have disabled ipv6 in firefox as per the article, will see if that helps after a restart of firefox).

Article Source | SAZEIT | UbuntuTweaks

In some cases disabling IPv6 can make a big difference in Firefox’s performance.
The Simplest way to turn off IPv6 protocols is to type: about:config in Firefox’s url address bar, then, in the filter type:IPv6.
The first line will read:network.dns.disableIPv6...default...boolean....false
Double-click the line to toggle it to true instead of false

Doing the above and restarting Firefox has definitely improved the browsing experience and sites are loading as normal, I will have a look on how to disable IPV6 System wide and will report back on that too, but so far I think just disabling in Firefox has done the trick – Thanks Sazeit

To disable IPv6 for the entire system, open a terminal and type:

sudo gedit /etc/default/grub

Now find the line that reads:

GRUB_CMDLINE_LINUX=""

and change it to:

GRUB_CMDLINE_LINUX="ipv6.disable=1"

Save, exit and restart.
You might want to time the loading of a couple of different sites before making the changes so you can gauge the effectiveness of the tweak.
In my case Firefox beat Google Chrome hands down with this tweak, but results will vary depending on your hardware.

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CentOS

CentOS in Vmware

So, I was trying to install CentOS 5.3 in Vmware and once it will execute the setup process and after a few clicks I was presented with the Disk Partitioning Page, clicking “Next” would reveal an error that

No Drives Found An error has occurred – no valid devices were found on which to create new file systems. Please check your hardware for the cause of this problem

Selecting and IDE Disk resolved the issue as when we create a VM in Vmware with default settings it uses SCSI.

In future always select “custom” when creating a new vm and select IDE instead of SCSI as your Hard Disk type.

CentOS

CentOS : Installing Firefox 3.5.2

Source : WilliamNix Blog @ Blogspot

cd /tmp
wget "http://download.mozilla.org/?product=firefox-3.5.2&os=linux&lang=en-US"
tar xvjf firefox-*.bz2
sudo cp -r firefox /usr/lib/firefox-3.5.2
sudo mv /usr/bin/firefox /usr/bin/firefox.old
sudo ln -s /usr/lib/firefox-3.5.2/firefox /usr/bin/firefox-3.5.2
sudo ln -s /usr/bin/firefox-3.5.2 /usr/bin/firefox

Close Firefox and then reopen

If for whatever reason you’d like to switch back to your previous version of Firefox, simply run the following commands from Terminal:

sudo mv /usr/bin/firefox /usr/bin/firefox.bak
sudo mv /usr/bin/firefox.old /usr/bin/firefox

Notes from the Blog Editor :
I am using this blog to log my *NIX Travels