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Squid : Optimising Web Delivery. Modify User Permissions. File permissions on Unix and Linux are one of the most ubiquitous stumbling blocks for even regular users of those operating systems. The intricate structure of which users on a system are allowed to do what is one of the foundations of Unix, providing security and interoperability, but at times it can make working with the system a pain.

Here’s a look at how permissions work and how to work with them. How to read a directory listing When you run “ls -l” from the Unix command line, the resulting file listing shows data about each file: We’re interested in that first column, which shows the permissions set on the file or directory. It consists of 10 characters. The first one indicates the type of entity it is. The subsequent nine characters show the permissions; they’re divided into three hunks of three, representing the owner, the group, and everyone else.

A user with read permission can view the contents of a text file, or list the contents of a directory. Some examples: Bitmasks Chown Chgrp. Make Your Linux Desktop More Productive. Using Pidgin. Help home > FAQ home Getting Started ¶ How do I use AIM, MSN, Yahoo! , Google Talk/Jabber/XMPP, ICQ, or any other protocol? ¶ Use the Account Editor (Accounts->Manage Accounts) to add the account of the appropriate messaging service. Use the checkbox in the account editor to enable the current account. For Google Talk, fill in the Domain field with the domain of your Google Mail e-mail address. How do I register for a new account? This depends on the protocol.

AIM: Go to ​this website. Buddy List, Buddy Icons (Avatars), and Blocking ¶ How do I set a buddy icon or avatar? We call all user pictures, avatars, etc. buddy icons. Global - This will affect all of your accounts. Some protocols impose a maximum file size on the icon or certain dimensions or certain file types. The following dimension guidelines are believed to be accurate as of June 2007: Pidgin itself (for the chat window) will scale icons up or down to 32x32 for display in the buddy list and the infopane.

How can I unblock someone? Banshee -- the next best thing to Linux iTunes. By Steven J. Vaughan-Nichols (May 19, 2006) I want an audio player that will do everything that Apple's iTunes does -- including working with my iPod -- and do it natively on Linux. That's a tall order. I've tried many fine Linux programs -- KDE's amaroK , RealPlayer 10 for Linux , Xine , etc. -- but none have scratched my itch. So, I've been running Windows iTunes 4.9x running atop CrossOver Office 5.01 . Apple's favorite audio program runs decently on CrossOver Office, but I wanted something that worked better and was a "real" Linux program. Although I haven't quite found exactly what I want in a Linux app, Banshee comes pretty darn close.

To start with the basics, Banshee can play all the most common music formats, such as Apple's AAC (Advanced Audio Coding), MP3s, and Ogg Vorbis. You can also use the program to rip and burn CDs. Unlike many audio programs, controlling Banshee is as easy as pie. It also supports iPod synchronization. I now run Banshee on several systems. -- Steven J. RPM packaging for beginners @ Dominique a.k.a. DimStar (Dim*)