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
Hardware Linux Solutions Web

How to Create a Bootable SeaTools USB – SeaGate Linux

Seagate U6 3.5 inch 40 GB hard disk.
Seagate U6 3.5 inch 40 GB hard disk. (Photo credit: Wikipedia)

SeaTools is a diagnostic tool to check your hard disk for errors and failure. Its an extremely useful tool to have around as hard disks fail all the time and recognizing a failing hard disk can save you a lot of trouble in the long run.

You can get a copy of the bootable iso from here: http://www.seagate.com/support/downloads/item/seatools-dos-master/
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So here is a guide to create a bootable SeaTools USB drive for Ubuntu:

  1. Install syslinux:
    $ sudo apt-get install syslinux
  2. Format the USB drive and Repartition it as FAT
    Give it a name like  “SEATOOLS”
  3. Mark the newly created partition as bootable – You can use Gparted to do this.
  4. Copy “syslinux” master boot record to drive (The code below is assuming your drive is loacated at “sdb”):
    $ sudo dd if=/usr/lib/syslinux/mbr.bin of=/dev/sdb
  5. Install syslinux on the drive partition:
    $ sudo syslinux /dev/sdb1
  6. Mount drive. You can do this by reinserting the drive or by using a command like:
    $ sudo mount /dev/sdb1 /mnt
  7. Copy the MEMDISK bootloader from /usr/share/syslinux/memdisk to the drive:
    $ cp /usr/lib/syslinux/memdisk /media/SEATOOLS
  8. Copy the SeaToolsDOS223ALL.ISO to the drive
  9. Create a file named ‘syslinux.cfg’ on the drive, with this in it (use correct .iso name):
    DEFAULT SeaTools
    LABEL SeaTools
    LINUX memdisk
    INITRD SeaToolsDOS223ALL.ISO
    APPEND iso

 

Thats it you’re done 🙂  Try booting with it. Here’s what my usb stick looks like at the end of all of this:

$ ls -l
total 3136
-r--r--r-- 1 username username 32768 2013-12-22 17:44 ldlinux.sys
-rw-r--r-- 1 username username 25244 2013-12-22 17:51 memdisk
-rw-r--r-- 1 username username 3137536 2013-12-22 13:22 SeaToolsDOS223ALL.ISO
-rw-r--r-- 1 username username 97 2013-12-22 17:54 syslinux.cfg

Categories
Linux Open Source Solutions Web

Using Static IP Address On Ubuntu



By default most unix boxes now come with dynamic IP enabled for all its networking needs. This is a very useful configuration but at times it helps to know that a system’s IP will remain the same no matter what changes occur around it. A classic example of this case can be a server.

In any case if you want to change your unix box to use static IP the following simple steps will get your task done:

Categories
Linux Open Source Solutions Web

Fixing WiFi regulatory rule in Unix

Wifi routers usually specify the regulatory rules for all devices connected to their network. In rare cases a router may go rouge and specify the wrong regulatory domain, which might effect the quality of the connection and at times may make the network unreachable even if the network says that its connected.

Below are the debug messages from the command “dmesg” in one such case:

Categories
Solutions Web

Fix Formula One Live Timing Errors

Formula One
Image via Wikipedia

With the start of new season of Formula One, a lot of viewers were left refreshing their pages because the live timing

refused to work for the first day of Practice.  The problem had to do with the old cookies of the website from the previous year’s timing widget.

To fix the problem follow this tutorial to Remove Cookies from your browser.