Red Hat Enterprise Linux

Red Hat Enterprise Linux is a popular Linux distribution used for a large number of web and application servers, as well as workstation computers.

702 Questions
Red Hat Enterprise Linux

What is full form of yum?

yum-- yello dog update modify.

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Red Hat Enterprise Linux

What is the difference between snapback hats and fitted hats?

Snapbacks have the adjustable thing in the back and have a flat top. Fitted aren't adjustable, have stickers with the size, and have a more circular top.

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Linux
Linux Fedora
Red Hat Enterprise Linux

What is Linux?

Linux is a free, open source operating system kernel, but now is considered to be packaged with other programs to be an entire operating system (known as a distribution, as there are different ones). It is similar to the Unix operating system which has been around for decades.

Red Hat and Ubuntu are two examples of Linux distributions -- others include Debian, Suse, Mandrake (formerly Mandriva), and more. Linux as a whole is known for its robustness; it's used in mission-critical tasks by many industries. It can cost little to nothing to download and install, or you may choose to have a vendor pre-configure and provide support for you.

By far, the two most popular distributions are Ubuntu and Fedora.

116117118
Linux
Linux Fedora
Red Hat Enterprise Linux

What are the features of Linux?

Linux has evolved to have the following features as an outstanding operating system which is strong in security and networking.

• Multitasking: Several programs can run at the same time.

•Multiuser: Several users can logon to the same machine at the same time There is no need to have separate user licenses.

• Multiplatform: Linux runs on many different CPUs, that means it supports multiprocessor machine.

• Multithreading: Linux has native kernel support for multiple independent threads of control within a single process memory space.

•Crash proof: Linux has memory protection between processes, so that one program can't bring the whole system down.

•Demand loads executables: Linux only reads from those parts of a program that are actually used on the disk.

•Shared copy-on-write pages among executables: This means that multiple processes can use the same memory to run in. When one tries to write to that memory, that page (with 4KB piece of memory) is copied somewhere else. Copy-on-write has two benefits: increasing speed and decreasing memory use.

• Virtual memory uses paging (not swapping whole processes) to disk to a separate partition or a file in the file system, or both, with the possibility of adding more swapping areas during runtime (yes, they're still called swapping areas). A total of 16 of these 128 MB (2GB in recent kernels) swapping areas can be used at the same time, for a theoretical total of 2 GB of usable swap space. It is simple to increase this if necessary, by changing a few lines of source code.

•Linux has a unified memory pool for user programs and disk cache, so that all free memory can be used for caching, and the cache can be reduced when running large programs.

• Linux does core dumps for post-mortem analysis, allowing the use of a debugger on a program not only while it is running but also after it has crashed.

• Linux is mostly compatible with POSIX, System V, and BSD at the source level.

• Through an iBCS2-compliant emulation module, Linux is mostly compatible with SCO, SVR3, and SVR4 at the binary level.

• Free and Open source code for all: All source code of Linux is available, including the whole kernel and all drivers, the development tools and all user programs; also, all of it is freely distributable. Plenty of commercial programs are being provided for Linux without source, but everything that has been free, including the entire base operating system, is still free.

• Linux supports pseudoterminals (pty's) and multiple virtual consoles: By several independent login sessions through the console, you can switch between by pressing a hot-key combination (not dependent on video hardware). These are dynamically allocated; you can use up to 64.

• Linux supports several common file systems, including minix, Xenix, and all the common system V file systems, and has an advanced file system of its own, which offers file systems of up to 4 TB, and names up to 255 characters long.

• Linux has a transparent access to MS-DOS partitions (or OS/2 FAT partitions) via a special file system:.You don't need any special commands to use the MS-DOS partition, it looks just like a normal Unix file system (except for funny restrictions on file names, permissions, and so on). MS-DOS 6 compressed partitions do not work at this time without a patch (dmsdosfs). Also VFAT (WNT, Windows 95) support and FAT-32 is available in Linux 2.0

• Linux has CD-ROM file system which reads all standard formats of CD-ROMs.

• Linux performs well with TCP/IP networking, including ftp, telnet, NFS, etc.

• Linux is userfriendly as Netware client and server

• Linux also runs as Lan Manager/Windows Native (SMB) client and server

• It integrates many networking protocols: The base protocols available in the latest development kernels include TCP, IPv4, IPv6, AX.25, X.25, IPX, DDP (Appletalk), Netrom, and others. Stable network protocols included in the stable kernels currently include TCP, IPv4, IPX, DDP, and AX.25.

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Red Hat Enterprise Linux

What is a red hatted churchman?

cardinal

717273
Internet
MS-DOS
Red Hat Enterprise Linux

List 5 major functions of a operating system?

*An operting system manages hardware, runs applications, provides an interface for users, and stores, retrieves, and manipulates files.

*It manages the hardware and software resources of the system.

*It provides a stable, consistent way for applications to deal with the hardware without having to know all the details of the hardware.

*System tool (programs) used to monitor computer performance,debug,problems, or maintain parts of the system.

*A set of libraries or functions which may use to perform specific tasks especially relating to interfacing with computer system components.

202122
Video Editing
Windows XP
Red Hat Enterprise Linux

How do you remove Red Hat Linux from a 2 disk dual boot system with XP on the first disk?

You might be able to do it from control panel>performance and maintenance>administrative tools>computer management>storage>disk management. It should show both disks, but I'm not sure if Windows can recognize the Linux partition. If it does, right click on it and either format the drive or remove the partition. I hope this works for you.

626364
Linux Ubuntu
Windows Vista
Red Hat Enterprise Linux

What is the comparative networking features of windows and Linux?

Linux has more good, fast and easy-to-use servers.

The TCP/IP stack is slightly faster

There is no limit as to amount of connections.

Guess that's it, aside from better security and speed of system itself.

414243
Home & Garden
Architecture
Paper
Red Hat Enterprise Linux

Can red rosin paper be used for waterproofing?

No. the paper is used because it is a wicking material and will pull moisture into and out of it. It is an air barrier. It will show signs if it gets wet and then dries.

It is very useful as a undercoating material in building because it wicks moisture to a broad area and allows dissipation without damage; it was often used as such over sheathing, subfloors and etc., and still is where appropriate. It is not inferior or a poor substitute for Tyvec or similar- it is a better application in many circumstances.

515253
Linux Fedora
Red Hat Enterprise Linux

Which runlevel is textual multi-user mode?

[Shutdown the system]

Runlevel 1: Single user mode

Runlevel 2: Basic multi user mode without NFS

Runlevel 3: Full multi user mode (text based)

Runlevel 4: Unused

Runlevel 5: Multi user mode with Graphical User Interface

Runlevel 6: Reboot System

Runlevel 3 is the answer.

474849
Red Hat Enterprise Linux
The Difference Between

What is the difference between ext2 and ext3?

Ext3 is a tiny bit slower than ext2 is, but it holds tremendous advantages. There is really only one difference between ext2 and ext3, and that is that ext3 uses a journal to prevent filesystem corruption in the case of an unclean shutdown (ie. before the filesystem is synced to disk). That makes ext3 a bit slower than ext2 since all metadata changes are written to the journal, and then flushed to disk, but on the other hand you don't risk having the entire filesystem destroyed at power failure or if an unwitted person turns the computer off uncleanly. You don't have to check the filesystem after an unclean shutdown either. Ext3 has three levels of journalling. Metadata (ie. internal filesystem structures) are always journalled, so that the filesystem itself is never corrupted. How ordinary data is written to the file system is controllable, though. The default option is the "ordered" mode, which causes file contents to be written to the filesystem before metadata is even committed to the journal. The highest reliable mode is called the "journal" mode, which causes file data to be committed to the journal before it is flushed to its final place, like the metadata. The least reliable mode, but rumoured to be the fastest, is called the "writeback" mode, which makes no promises at all regarding the consistency of file data. Only metadata is output reliably in writeback mode. So as for anything else, it's mainly a matter of priority. If you don't want ultimate speed, go with ext3. If you need the highest speed that is theoratically aquirable though, then go with ext2. For that to be effective you'll probably need a really advanced hard drive controller, though.

474849
Computer Terminology
Plural Nouns
Red Hat Enterprise Linux

What is the GNU license?

The GNU Free Documentation License (GNU FDL or simply GFDL) is a copyleft license for free documentation, designed by the Free Software Foundation (FSF) for the GNU project. It is the counterpart to the GNU General Public License that gives readers the same rights to copy, redistribute and modify a work and requires all copies and derivatives to be available under the same license. Copies may also be sold commercially, but if produced in larger quantities (greater than 100) then the original document or source code must be made available to the work's recipient.

454647
Linux
Red Hat Enterprise Linux

What process always starts first when Linux boots?

init.

Answer:

'init' is always process ID 1.

414243
Linux
Unix
Red Hat Enterprise Linux

What is the latest version of Linux?

There is never a "current" or "latest" version of Linux, as the different versions are constantly updating themselves.

353637
Red Hat Enterprise Linux
OpenOffice

How do you install OpenOffice.org in Red Hat Enterprise Linux?

open up a terminal and type:

$sudo yum install openoffice.org

if sudo is not installed on your computer:

$su

$yum install openoffice.org

394041
Computers
Mac OS
Red Hat Enterprise Linux

Will new Macintosh computers run appleworks-6?

YES. In fact, I just launched AppleWorks 6 on a brand new 20" Aluminum iMac Core 2 Duo 2.4GHz, much to my surprise (I didn't realize it had made it to my new machine).

373839
Computer Networking
Windows Server 2003
Red Hat Enterprise Linux

What are the specifications of a file server?

1GHZ - 2GHZ MHz processor (Intel Xeon Processor) 512 MB- 2 GBRAM memory 40- 120 gig IDE / SCSI Hot swappable disk drive 56k modem DVD Ram IDE drive 10-20 Backup Disks .net (2003)Operating System Battery Backup

373839
Linux
Internet Research
Red Hat Enterprise Linux

What is yum for Linux computer?

Yum (short for Yellow Dog Update Manager) is a package manager for Yellow Dog and a few other Linux distributions. It is used to install, update, and remove programs.

333435
Red Hat Enterprise Linux
The Difference Between

What is the difference between red hat and blue hat gnomes?

one has a red hat and the other has a blue one.

AnswerAlso, blue hatted gnomes have more effective infravision as they are not loyal to Thay.

Gnomes in Thay? Heavens, what has Faerun come to?

313233
Software and Applications (non-game)
Linux
Linux Fedora
Red Hat Enterprise Linux

What is the developmental trend of Linux?

Linux in itself, that is, the core OS is being developed with more stability, security and support for devices and software in mind.

Nevertheless, the Linux distributions (or distros) are modeled Linux kernels to fit specific needs and they each have a different trend. They all use the Linux kernel in the core, but the uses and abilities can vary greatly.

Check out the different distros and choose one you like. If you are disappointed or don't like it, don't worry, choose another flavor and download, theyre all mostly free.

check out www.distrowatch.com

313233
Red Hat Enterprise Linux

What is ext2 and ext3?

Ext3 is a tiny bit slower than ext2 is, but it holds tremendous advantages.

There is really only one difference between ext2 and ext3, and that is that ext3 uses a journal to prevent filesystem corruption in the case of an unclean shutdown (ie. before the filesystem is synced to disk). That makes ext3 a bit slower than ext2 since all metadata changes are written to the journal, and then flushed to disk, but on the other hand you don't risk having the entire filesystem destroyed at power failure or if an unwitted person turns the computer off uncleanly. You don't have to check the filesystem after an unclean shutdown either.

Ext3 has three levels of journalling. Metadata (ie. internal filesystem structures) are always journalled, so that the filesystem itself is never corrupted. How ordinary data is written to the file system is controllable, though. The default option is the "ordered" mode, which causes file contents to be written to the filesystem before metadata is even committed to the journal. The highest reliable mode is called the "journal" mode, which causes file data to be committed to the journal before it is flushed to its final place, like the metadata. The least reliable mode, but rumoured to be the fastest, is called the "writeback" mode, which makes no promises at all regarding the consistency of file data. Only metadata is output reliably in writeback mode.

So as for anything else, it's mainly a matter of priority. If you don't want ultimate speed, go with ext3. If you need the highest speed that is theoratically aquirable though, then go with ext2. For that to be effective you'll probably need a really advanced hard drive controller, though.

293031
Red Hat Enterprise Linux

How can you find out the number of processors in Red Hat Enterprise Linux?

less /proc/cpuinfo

293031
Linux
Limewire
Red Hat Enterprise Linux

Where can you download Linux?

From any of the websites for the many Linux distros out there.

293031
Linux
Linux Ubuntu
Red Hat Enterprise Linux

On Linux how many kernels you can compile at the same time and how many kernels you can load in Linux?

You can have as many compiled kernels in your Linux installation as you want (disk space is your limit). However, you can only boot one kernel at a time.

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Red Hat Enterprise Linux

How do you install CCProxy on Red Hat Enterprise Linux 5?

CCProxy is a Windows application. It does not run natively on Linux and would be unsuitable for a production environment.

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