Archive for the 'Linux/Unix' Category

How to change screen/display resolution in Ubuntu 9.10

This article will show you how to change your monitor resolution in Ubuntu 9.10. Most of us are long-time Windows users and we are very used to the interface and how to do a simple task like this. But for Linux newbies, it can get frustrating to navigate all the menu options to find the [...]

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Ubuntu 9.10 :: Download & install it today!

Codenamed Karmic Koala, Ubuntu 9.10 was officially released today.  Some noteworthy new features include: Faster start-up times Upgrade to Gnome 2.28 Now available in 25 different languages New Intel video driver architecture for improved performance ext4 is now the default filesystem and many many more! How to upgrade to Ubuntu 9.10? Navigate to System -> [...]

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How to disable password prompts (UAC) in Ubuntu

This article will show you are to disable UAC (User Access Controls) aka those pesky popup dialogs where you must enter your password in Ubuntu Linux! As many of you know, this feature was implemented in Windows Vista but went horribly wrong and is the reason it has been removed in Windows 7. Linux, which [...]

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How to enable/install SSHD service on Linux (Ubuntu 9.04)

This article will show you how to install/enable the SSHD service on the Linux operating system (Ubuntu in this case). By default, the Ubuntu 9.04 Desktop edition does not come with SSHD installed. This means that remote users are not able to connect to the box via SSH. Luckily, it is very easy to allow [...]

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Unable to access Solaris 10 box by hostname

Do you have a Solaris 10 (x86 or SPARC) box that you are able to connect to by IP address, but not by hostname? You might have spent hours trying to resolve this issue like me, but here is the quick and easy solution! Assigning a hostname to a Solaris 10 machine Login to the [...]

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How to restart sshd service in Solaris 10

This article will show you how to restart the sshd service on Solaris 10. To Restart the SSH Service Login to the command-line terminal Run the command: svcadm restart svc:/network/ssh:default

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How to encrypt all files on your hard drive in Linux and Windows

This article will introduce you to a free, open-source software called TrueCrypt, which encrypts files on your hard drive. This software can be used on Linux, MacOS, Windows XP, Windows Vista, and Windows 2003/2008. TrueCrypt encrypts/decrypts all file names, directory names, file contents, etc on your hard drive in memory (RAM), without any user intervention. [...]

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How to parse a decimal number using ‘awk’ and ‘cut’ in Linux

This article will show you how to parse a decimal number (such as a software release number) into individual parts. For example, you can do this if you need to compare the the minor release number of two versions. There are numerous ways to accomplish the same thing using Linux and I will show you [...]

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How to compare 2 files using ‘diff’ in Linux

This article will introduce you to the diff command on Linux which is used to compare two files and display the “differences” between the two. I will also provide you with a Bash shell script to compare two files and simply output if they are the same or not. Lets begin with the basic usage [...]

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How to create MD5 Checksums and validate a file in Linux

This article will explain how to generate a MD5 Checksum on a file or list of filesa and also how to validate a file against a known MD5 Checksum. For those of you that are not familiar with MD5 Checksums, the purpose is to validate the integrity of a file that may have been corrupted [...]

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