linux
If you want to move all files of a particular file type into a single directory, you can use the find command to do this easily in Linux. Usage Run this command from the root directory of where you want to find the files. For instance, if you wanted to find all .zip files from [...]
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Webalizer is a fast, free web server log file analysis program. It produces highly detailed, easily configurable usage reports in HTML format, for viewing with a standard web browser. It was written to solve several problems with currently available analysis packages. A vast majority of them were written in Perl or some other scripting language, [...]
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OpenVZ is an operating system-level virtualization technology based on the Linux kernel and operating system. OpenVZ allows a physical server to run multiple isolated operating system instances, known as containers, Virtual Private Servers (VPSs), or Virtual Environments (VEs). It’s similar to FreeBSD Jails and Solaris Zones. vzdump is a backup and restore utility for OpenVZ [...]
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Command Summary Use arp Command mostly used for checking existing Ethernet connectivity and IP address Most common use: arp This command should be used in conjunction with the ifconfig and route commands. It is mostly useful for me to check a network card and get the IP address quick. Obviously there are many more parameters, [...]
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GRUB is one of the more common boot loaders in use on GNU/Linux systems today. I have GRUB installed on both my boxen, on one to facilitate dual-booting between Windows XP Home (for Kelly, not for me) and on the other to facilitate booting between kernels. GRUB is controlled by a file called menu.lst which [...]
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The ps command will display the running processes on a GNU/Linux system. As with many command-line applications there are many options and switches. I’m just going to touch on the few more common but you can use the man pscommand to find out other things you can do with ps. ps by itself will display [...]
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Many users, despite having a good Net connection, complain about poor surfing and download speeds. While an organization could pay for additional bandwidth, a better option might be to manage the bandwidth they already have. There are numerous bandwidth management software tools available. In this article we will explore managing network bandwidth using the dummynet [...]
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All of the operations considered in this article are operations upon a router, whether that router is a Linux box or Cisco dedicated hardware or some other type of machine. In this chapter I consider the traditional methods of IPv4 routing as using static configurations that are manually input by the network administrator. 1.1 Traditional [...]
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Grep is by far the most popular command that exists in Unix. Though some may argue about that, but once you begin using grep, it would always be present in all your complex commands that you think of executing at the shell prompt. grep stands for ‘global regular expression printer‘ . Which makes no sense [...]
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Installing Prerequisites If you are running on Ubuntu or another Debian distribution, you can install the required software by simply running the following command from a terminal prompt: sudo apt-get smbclient smbfs Testing the Connection Now that you have the right tools installed, it’s time to test the connection to the Windows or Samba box [...]
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FreeTDS is a set of libraries for Unix and Linux that allows your programs to natively talk to Microsoft SQL Server and Sybase databases. Technically speaking, FreeTDS is an open source implementation of the TDS (Tabular Data Stream) protocol used by these databases for their own clients. It supports many different flavors of the protocol [...]
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To verify that Apache and P HPÂ are installed and running, first point a browser to the host on which they are installed and verify that the browser can view the apache test page. To verify that the PHP is runing and operating correctly, create the following script placing the same on the web folder. [...]
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If you are looking for a way to speed up your PHP pages on Apache, this is the software you want to install. Huge performance gains can be had when using this software to precompile and cache your PHP pages, and it is very simple to install.
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This is an introductory guide for people learning to use a Linux system. It focuses on command-line usage. This is not because everyone will be doing everything at the command line. On the contrary, there are many useful GUI tools and programs in Linux, and some people will be content to stay with these. However, in contrast to GUI programs, which can be learned largely by “click and try”, the command-line requires some deliberate learning, and reading documentation. The benefit of this investment is that you will learn the tools and tricks of the command line which are in many cases faster, more powerful, and more flexible than any GUI program.
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As a system administrator, part of your daily duties is to monitor systems for performance and to tune systems where necessary. While there are expensive software products and benchmarking tools that can hone a machine to optimum efficiency, there exist several basic tools within Linux® that permit the knowledgeable system administrator to gather information and [...]
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