Wired ethernet not getting detected in Ubuntu

Recently I installed Ubuntu on my Desktop. But I met with a difficulty after the installation, my ethernet card is not getting detected. I searched the repositories and I didn’t get far with that. Then I searched this in Ubuntu forums, and found a thread similar to my issue. A solution mentioned there was to … Continue reading “Wired ethernet not getting detected in Ubuntu”

Convert Youtube videos to audio in Ubuntu 9.04

The tool that can be used for the purpose is Elltube. To install Elltube open up a terminal and run the command: sudo synaptic The above command will open up the full-blown Synaptic tool. Search for “lame” (no quotes). Scroll down until you see the “ubuntu-restricted-extras”. Mark “ubuntu-restricted-extras” for installation. Search for “ffmpeg” (no quotes). … Continue reading “Convert Youtube videos to audio in Ubuntu 9.04”

Glipper crashed with ValueError in load()

I found out that klipper is not working well in Ubuntu 11.10 version. I installed glipper in my machine and after a reboot, met with this error. glipper crashed with ValueError in load(): invalid literal for int() with base 10: “\xcb#W\x84\xb0\x0e […] \r” The workaround appears to be to just forget about the invalid history … Continue reading “Glipper crashed with ValueError in load()”

How To Find Large Files and Directories in Unix

Sometimes we need to find larger files in a file system when theres is a disk space issue. This example finds all the files under /etc directory which are larger than 1000k: geobaby@ubuntu:~$ find /etc -size +1000k /etc/brltty/zh-tw.ctb If you look at the file, the size if above 1000k: geobaby@ubuntu:~$ ls -l /etc/brltty/zh-tw.ctb -rw-r–r– 1 … Continue reading “How To Find Large Files and Directories in Unix”

Checking Rootkits with rkhunter

Rootkits A rootkit is software that is installed on your server with the purpose of hiding the fact that your server has been compromised and providing access to your server so that the intruder can easily return. It is important to understand that in order for an intruder to install a rootkit they will have … Continue reading “Checking Rootkits with rkhunter”

Disable USB Devices

The modprobe can be configured to not load the USB storage driver upon demand. This will prevent the modprobe program from loading the usb-storage module, but will not prevent root from using the insmod program to load the module manually. Enter the following command: # echo ‘install usb-storage : ‘ >> /etc/modprobe.conf You can also … Continue reading “Disable USB Devices”

Disable Wireless Networking (Wi-Fi)

Use the following commands to list installed devices (list PCI devices): # lspci Go to /lib/modules/$(uname -r)/kernel/drivers/net/wireless and remove wireless driver. # mkdir -p /root/backup/ # mv /lib/modules/$(uname -r)/kernel/drivers/net/wireless /root/backup/ # reboot Above will remove the kernel drivers that provide support for wireless devices and it will prevent users from activating the devices. Deactivate Wireless … Continue reading “Disable Wireless Networking (Wi-Fi)”

First Release Candidate of Linux Mint 7 KDE

Linux Mint project proudly announced the official blog the immediate availability of the first release candidate of Linux Mint 7 (Gloria) KDE Community Edition operating system. This first RC is based on the popular Ubuntu 9.04 (Jaunty Jackalope) distribution, is powered by Linux kernel 2.6.28 and is built on top of the KDE 4.2.4 desktop … Continue reading “First Release Candidate of Linux Mint 7 KDE”