Getting Gnome Flashback to work with a dual screen monitor

The kernel allocates a new module data structure and enough kernel memory to hold the new module and puts it at the end of the kernel modules list. By virtue of its open source licensing, Linux is freely available to anyone. People who develop OSS commonly use the Internet to …

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Determine hardware resources for devices

Python has always touted itself as a "batteries included" language; its standard library contains lots of useful modules, often more than enough to solve many types of problems quickly. To understand what OSS is, you must first understand how source code is used to create programs. In all cases, bash …

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Download via SFTP

Most file writing occurs at the end of the file. Computer software was almost universally regarded as being akin to mathematics, i.e., something that anybody is permitted to use in any amount, with any desired modifications and for whatever purpose desired. Where in I/O space the common peripherals …

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Running syslogd inside a docker image

The inode is both a physical object, located on disk in Unix-style filesystems, and a conceptual entity, represented by a data structure in the Linux kernel. It may not be the best choice for word processing (or maybe it is -- read on), but many see it as an "ISP in …

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Installing a web server under Moblin

Free software, as the term is usually used, and public domain software resemble each other in that both are usually free both in a monetary sense and with regard to use. Assuming that a module can be unloaded, its cleanup routine is called to allow it to free up the …

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Configuring biod in easy steps

By then, much of the GNU operating system had been completed, with the notable exception of a kernel (i.e., the core of the operating system). The device drivers for a class of block device provide class specific interfaces to the class. There is yet one other weakness: if a …

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Creating a COPYRIGHT.TXT file for your distro

Studying in a classroom environment can be the best choice for people who (1) prefer classes to self study, (2) do not have their own computer, (3) are lacking in motivation or study skills or (4) receive some type of tuition assistance or other grants to cover the costs of …

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Using the ifdown tool on Kali

IP addresses on the other hand can be assigned and reassigned by network administrators at will but the network hardware responds only to ethernet frames with its own physical address or to special multicast addresses which all machines must receive. Any site that is requested through the "what's that site …

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Introducing the Linux Shell

Linux is one of the most dominant and adaptable operating systems globally. Linux operating system is utilized in many areas of Computer Science, ranging from embedded to smart devices. This Operating system is utilized in High-Performance Computers, servers that are running the global Internet infrastructure services like DNS, smartphones, android …

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At the command line with lsof

The most common meaning for the term free software is programs whose source code is freely available to anyone to use for any purpose, including studying, copying, modifying, extending and giving away. This is an example of the meritocracy of Linux and open source being pulled into the mainstream, where …

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Redirecting output with Freesco

Processes are free to use a FIFO so long as they have appropriate access rights to it. Most people believe it is wrong to steal, and therefore, won't rob a wallet. Today open source software has become critical for almost every organization. The access file logs every visit to your …

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Tips and tricks for using CUPS for printing with Mandriva

A server is a computer with an operating system that is configured to allow other computers to connect to it from across a network. Keep in mind that these are only conventions---not rules. Setting up TCP/IP connections is very different from setting up an amateur radio X.25 connection …

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A lazy person's guide to env

You need to start from the ground up, choose components, and build a customized operating system that could easily become a great Linux distro for programming and other development purposes. Each filesystem is mounted to a specific location in the namespace, known as a mount point. One who bases his …

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Which is the best Widget engine for Ubuntu?

When one single governing body gains absolute control over something, it is only a matter of time before that governing body increases its power tremendously. The application can then trap into the kernel through this well-defined mechanism and execute only code that the kernel allows it to execute. When the …

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How to get more from host

The LSB is a joint project of several Linux vendors under the auspices of the Linux Foundation (formerly the Free Standards Group). A filesystem is a collection of files and directories in a formal and valid hierarchy. Commercial programming packages, like commercial operating systems, can cost a great deal of …

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Using more to view text files at the SLAX command line

Some users have reported success configuring and installing drivers for the various winmodems, including Lucent, Conexant, and Rockwell chipsets. The application tells the kernel which system call to execute and with what parameters via machine registers. Each surface of the platter is divided into narrow, concentric circles called tracks. Another …

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Boost your mastery of mt with these tips

Institutions that rely solely on commercial-proprietary vendors - whether on-premises or cloud-based - effectively outsource their IT strategy and reduce their capability to deal with change with agility. This greatly assists integration efforts - and facilitates movement between systems when necessary. But, due to some recent changes, Ubuntu has switched back to GNOME …

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How easy is it to learn the lxc utility?

Every device in the system is represented by a device special file, for example the first IDE disk in the system is represented by /dev/hda. But there may have a possibility of spreading malware to the Linux based systems if they are connected with Windows based systems. This is …

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Installing a web server under Network Security Toolkit

There are also numerous completely free resources available on the Internet, including (1) tutorials, (2) books and (3) newsgroups. This might seem a very unreliable method but every process in the system is making system calls, for example to write a character to the terminal, all of the time. In …

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How logname can help power your webapp

When a user-space application requests that a given filename be opened, the kernel opens the directory containing the filename and searches for the given name. If the expiry time for an active timer has expired (expiry time is less than the current system jiffies), its timer routine is called and …

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Docker and Amigo Linux

From there, the kernel gets the inode for plunder. You probably only have one screen, right? The routine will be called when the element on the task queue is processed and it will be passed a pointer to the data. Even when you're programming in another language, the C library …

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How to set up the Zsh environment on Ubuntu

The device driver places bytes onto the queue, one by one, and user space reads the bytes in the order that they were placed on the queue. Although Linux was only created in 1991, the number of Linux users estimated by Red Hat in 1998 was 7.5 million, and …

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Using the cal tool on Kali

After submitting a contribution using the process described in the documentation, you will need to be available to respond to feedback. The entire Linux kernel was written from scratch, without employing any code from proprietary sources. Instead, the kernel keeps parts of the process resident in memory to allow the …

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How to get more from logout

If you desire to use Linux as an Internet Web server, you can simply recompile the Linux kernel to include only the support needed to be an Internet Web server. There is also a view that, regardless of the extent to which each of these approaches proves to be best …

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System administration commands and daemons

The history of Unix begins at AT&T Bell Labs in the late 1960s with a small team of programmers looking to write a multi-tasking, multi-user operating system for the PDP-7. GNU/Linux increases personal computing freedom. Synchronous jobs started by bash have signals set to the values inherited by …

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Does colrm sometimes make you feel stupid?

For example, the term open source is of much more recent origin. Device drivers have to be careful when using memory. Those licenses must adhere to the open source definition but might contain extra conditions that the open source defini- tion does not. It is interruptible, so it can receive …

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A technical overview of unrar

If the command name contains no slashes, the shell attempts to locate it. The most precious resource in the system is the CPU, usually there is only one. The proto_ops data structure consists of the address family type and a set of pointers to socket operation routines specific to a …

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The ultimate guide to zdiff

In this case the semaphore clean up code simply discards the sem_undo data structure. Sometimes the DMA channel for a device can be set by jumpers; a number of ethernet devices use this technique. Even if we make an unwise decision, we make it for a rational reason that shines …

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What's the purpose of the SPEAKUP_DOCS.TXT file?

In 1989 Stallman invented the concept of copyleft, which is aimed specifically at preventing any recurrence of the type of takeover of free software that had occurred earlier in that decade. You can also edit boot options on the fly from the GRUB menu. Time enough for a soapbox. Those …

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Redirecting standard output on the Amigo Linux operating system

Libraries were written and ported, filesystems developed, and hardware drivers written for many popular devices. An exit status of zero indicates success. Tied closely to IoT is the drone trend, that of remotely controlled flying robots. A character device is accessed as a linear queue of bytes.

Shortcuts for nameif …

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Is Cinnamon the best windows manager for Linux?

With respect to language standards, Linux fares well. Note that Windows NT systems cannot be included in this survey (because their uptimes couldn't be counted). 99 in Windows). The minor device numbers are used to distinguish between different devices and their controllers, for example each partition on the primary IDE …

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Adventures with column and Arch

Some applications are written exclusively to higher-level abstractions. This means that you cannot DMA directly into the virtual address space of a process. Whenever you refer to a file or directory on the command line you are actually referring to a path and your path can be constructed using any …

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Job control under DragOnLinux

Specific filesystems, however, may impose their own restrictions, imposing a smaller ceiling on the maximum length. It is not possible to directly link user-space applications with kernel space. In many ways, Linux and UNIX administration is today much easier than administration for popular commercial personal operating systems because it is …

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How much do you know about the Linux if command?

That is, there are no legal restrictions on anyone using, studying, copying, modifying, improving or publishing any recipe. Luckily, basic maintenance and basic security are pretty easy. One of the best parts about Gentoo, which is also a curse for some people, is its ability to configure what compilation flags …

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How biff can help power your webapp

The API merely defines the interface; the piece of software that actually provides the API is known as the implementation of the API. Finally, when the connection is no longer needed it can be shutdown. Once connection has been made, any of the (usually) several browsers available can be used …

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Let your Slackware terminal speak its mind

This means that if a system has two IDE controllers there will be entries for the IDE subsystem at indices at 3 and 22 in the blk_dev and blkdevs vectors. When someone detects a bug it reports it to the community and they release a patch as soon as possible …

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Developing with COBOL in a Linux container

If you've been developing on Windows for a couple of years, you've likely experienced a catastrophic failure at some point, or had to move all your dev tools to a new version of Windows. The first IDE controller in the system is known as the primary IDE controller, the next …

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Unwrapping dnssec-signkey

It has BlueJ, Geany, Greenfoot, Mathematica, Python, Node-RED, Scratch, and other tools for making your learning process more effective. The address bus specifies the memory locations (addresses) for the data transfers. The target host that owns the IP address, responds with an ARP reply that contains its physical hardware address …

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A simple guide to ul

However, this is definitely no loss. Big data, the collective term for the mountains of information produced by businesses, can hold the keys to more efficient operations and even increased revenues by identifying new opportunities, but first this data must be sorted, parsed and analyzed. As you can see, the …

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