General :: Configure A Single Computer To Work For Multiple Simultaneous Users?
Aug 17, 2011
How can I configure a single computer to work for multiple simultaneous users? I would like to have multiple keyboards and monitors on a single PC ... Is it possible? This set up I'm planning for CyberCafe, For cyberCafe business ROI is very slow... so was planning to have something like this....
-single CPU (Which would act as a server)
-Multiple monitors, keyboards, Headphones etc....
If this works out then I would save a lot on my investments (OS cost, Hardware devices, electricity etc)
View 3 Replies
ADVERTISEMENT
Mar 18, 2010
Possible Duplicates: Dual Booting Linux and Windows XP Booting Multiple Operating Systems I have a machine with Windows on it, and I would like to be able to reboot to Linux. I am certain this is possible. How can I achieve this?
View 2 Replies
View Related
Feb 10, 2010
If I have SMP kernel would it work with single processor or only work with multiple processors system?
View 6 Replies
View Related
Jun 1, 2011
Each day I need to copy N files from a source location to a mirror at a specific time (where N is very large). Let's say I tell multiple CPUs to each run an rsync simultaneously on a subset of the files (network and disk bandwidth are not an issue). Ideally each CPU would be responsible for a disjoint subset of the N files, but in practice this is sometimes hard to guarantee. (Some of the source files might be "claimed" by more than one CPU.) As a result, sometimes rsync I and rsync J will both try to copy file F at the same time.
Using rsync -avz --delete --temp-dir=/tmp remote:/path/to/source/ /path/to/dest/, let's say rsyncs I and J both see this situation to start:
[Code]...
Now rsync J finishes copying but generates an error when it tries to move its version of FileB to /path/to/dest/ because there's already another FileB there that it didn't see when it started.
Does one of rsync's many options somehow handle this situation? Ideally I'd like an option that tells rsync, "Believe in yourself. You can do no wrong. Feel free to overwrite anything your little heart desires." so that it wouldn't complain about the FileB that has suddenly appeared mid-execution
View 1 Replies
View Related
Jan 30, 2011
GUI for several thousand simultaneous users. I know this post may at first seem a little out of place here when you begin to read it but please bear with me and I think you will understand why I am seeking feedback here. The company I work for (whose name I am withholding for now) is currently running a little over 5,000 Linux servers. Each of these servers has a minimum of 500 users, some as many as 3,000 users on them during a business day.
These servers are serious pieces of hardware. They have hot swappable raid arrays, redundant well most everything is redundant on them, frankly. Our conversion to Linux took place about 8 years ago. We have a proprietary database and development environment that was originally built in the 1970s. All but the most recent applications run in this proprietary environment, whereas our newer applications are using PostgreSQL and executables that are delivered using Apache web server and run inside each users Windows Explorer session on their local PC.
Really, our situation is rather typical of any organization that has legacy software that still gets the job done - with the possible exception of the **massive** number of total users we keep up-and-running every day. more, our next Linux servers are expected to support somewhere between 6,000-8,000 users [exact figure yet to be determined]. You may ask this is all very interesting but why are you posting this here?.
I am researching alternate ways of presenting attractive and functional GUI to users of Linux servers. I find the Ubuntu GUI to be attractive and very functional. the user input these forums get. Finally I am looking for points of view outside my own organization so I don't fall into the 'but we don't do it that way here' mental trap and miss a really great concept.
I have an idea about how to solve this growing challenge, and I want to present it here for your review and comments. For those who might think I have never worked on systems of this size; I can't imagine my opinion would be valuable remember this: The Ark was built by a passionate volunteer; The Titanic was built by paid professionals.....
View 9 Replies
View Related
Feb 7, 2010
I really hope someone could help me with this problem. I've been stuck on this for a month.I am using the sftp command to upload files using a bash script.The problem is that it is extremely slow to do it this way. as many of you would know if you have shared server somewhere. I would use scp if remote server supported it, but it doesn't.
Anyway, If any of you have ever used FileZilla, in the Settings, if you go to "Transfers" there is a place where you can set the number of "maximum simultaneous transfers". This feature works wonders with SFTP (and FTP too). It really speeds things up. How do I accomplish this same thing with the sftp command... because I don't want to use a GUI. I don't even mind using FileZilla through the command line if possible... but it does not seem to be possible. I've been stuck on this for a month!!! I've searched everywhere and tried a lot of things with no avail...
View 6 Replies
View Related
Aug 25, 2010
As the title says, I'm interested in two (or more) simultaneous keyboards, each with a unique layout. Everything I've researched indicates this should be possible, but I'm unable to get it to work. Regardless of how I set things up, all keyboards consistently operate as if they share the CoreDevice setting in xorg.conf.
In the above config, both keyboards behave as if they're set for the USA layout. Changing the layout in gnome-keyboard-properties affects all of the connected keyboards equally, but has no provision for altering individual devices.
View 1 Replies
View Related
Nov 5, 2010
I work for a company that uses Ubuntu exclusively. Without going too much into detail, we need a single sound-card to do up to 3 things at one time. What I mean by this, basically, is that there needs to be 3 instances listening to a card's line-in port at any one time. For example (these are made-up), Audacity listening to the line-in jack and making a recording of what it hears, a custom script that streams the input to the internet, and a third instance that listens to this input and runs different scripts based on what it hears.
Currently, our company sends out machines with 3 sound cards to do this. One card for each job. Of course, we'd like to save money and only send out one. Whenever we try to set all 3 programs to run off of one card, they error out and say something along the lines of "device already in use". Is there a way to go around this? If so, how? We use the command-line version of Ubuntu 8.04. It is NOT x64. The hardware may vary a bit, but is for the most part, consistent. (We order in batches of 50.)
View 8 Replies
View Related
Oct 13, 2010
I have question about the UNIX sockets. my goal is to connect multiple sockets from a single client to a single server and keep them open...I'm not sure if that is possible to create or not. Do you have any suggestion or an example of code?
View 1 Replies
View Related
Jun 20, 2011
I would like to share same vnc session between two users, as both users need to look at the screen in order to make few observations.
View 3 Replies
View Related
Mar 6, 2011
Is there any limitation to the number of transactions through a single port if so then if we assign multiple port to that particular service then the performance is increased (what i suppose)
so: Is there any way to assign multiple Ports to a single service. like for a web server the main service is httpd or some thing like that to be running on the server and now if we assign multiple ports to that service then the performance increases.
View 2 Replies
View Related
Apr 28, 2011
If i have two domins [URL] and [URL], can i point it to same IP Address in DNS?.I had already added namevirtualhost in my Apache.If possible, is there any risk,disadvantages.
View 11 Replies
View Related
Jul 1, 2010
I am new in client server programming and i have written code for single server to single client communicating one port(3490). but i have no idea how my single server will be communicate with different client on different port.how this will be happen ?
Any idea to understand the logic or send any good link or any piece of code in c , i searched on net but all help was mostly for java progamming.
View 1 Replies
View Related
Apr 7, 2011
I need to transpose a file with over a 1000 rows of 5 columns of numbers into a file with a single column of numbers. The numbers are separated by a single space and range from one digit to 5 digits each. I tried using awk, but can only get it to grab one column of numbers.
Input:
1 2 3 4 50
600 7 8 9000 10
11 12000 13 14 15
Desired output:
1
2
3
4
[code]....
Tried using: awk '{split($0,a,""); print $NF}' <filename> and got:
50
10
15
It only grabbed the last number in each row.
View 13 Replies
View Related
Aug 30, 2010
I'm searching for the cheapest single board computer which can run Linux. It must have ethernet and at least one serial port.I'm currently looking at these modules from Technologic Systems, but wondering if there's anything cheaper out there?
[URL]
View 2 Replies
View Related
Jun 3, 2010
I'm calling a function defined in "uart.c" from "main.c"
But on "make" using cygwin bash, it's giving an error:"Unreferenced function"...
Pls help me to overcome this problem.
If i'm putting the definition of that function in "main.c" itself, its working.
So pls tell me how to write the make file for it?
View 4 Replies
View Related
Apr 24, 2010
I have an unencrypted DVD that is one big title, ie you cannot skip next / prev. What I want to do is reauthor the DVD with title at certain points, so that I can skip next / prev when watching it.
I'm using Ubuntu 8.10
View 1 Replies
View Related
Jul 5, 2011
i have 30 linux PCs running. i need to check the performance of all pcs( memory,ram and process usage) in single command or in GUI mode.In solaris we have perf script to check performance in GUI mode. i need same type in linux?
View 1 Replies
View Related
Sep 12, 2010
how to update a series of values from multiple grep commands outputs to be appended to a single row of a csv file? Work on a linux envir. The values from grep output will be numeric values.
Output sold look like:
1,3,4,5,7,0,5
Each of these values will be odtained from multiple grep commands piped with wc -l Is it possible to update a single row of a csv file if so pleas ehelp me with the command to be used to redirect the output into the csv file
View 5 Replies
View Related
Jun 18, 2010
I want to do something like svn add dir1 dir2; svn ci dir1 dir2 but have it be only 1 revision. Is there a way to do this? Is this the correct way to add new folders (with contents) to the repository? We are restructuring the trunk, so I cleared it out and plan on putting these directories with their contents in it.
View 1 Replies
View Related
Jul 11, 2011
I've written a script (that doesn't work) that looks something like this:
#!/bin/sh
screen -dmS "somename" somecommand
for i in {0..5}; do
screen -dmS "name$i" anothercommand $i
done
For some reason, if I copy and paste this into a terminal, it creates 7 detached screen sessions as I expect. If I run it from within a script, however, I get only the first session, "somename," when I run screen -ls.
Edit: If the same can be accomplished another way (e.g. with multiple screen windows instead of sessions), I would be open those solutions as well.
View 3 Replies
View Related
Nov 28, 2010
I am using Xfce as the desktop enviroment and Mozilla Firefox as the webrowser. Within the webrowser window, I do File>Save Page As. I save it, and the result is almost always foo.html and directory foo_files. But I think under KDE I could choose the format, one of them being something like "Single page" (only one file; the colecction of .png, etc is embedded into that file). And this is the format I want Xfce (or Firefox) to use when downloading to hdd.
View 1 Replies
View Related
Apr 27, 2011
I am currently trying to figure out what's the best way to backup several PCs (about 5 computers each with Windows 7) from my family.
As I want the same solution for all Computer - I set up my old computer (Windows 7) and added some hard drives and there should now be enough space to backup the data of everyone from my family via the network. (Lets call this computer "Server")
But now I am wondering whats the best way to do this? What I do not want:
I do not want to start the Server each time manually when a computer tries to backup. (I thought about using WakeOnLan.. but I do not know if this is a good idea) I do not want the Server to run permanently I do not want to make the backups manually they should backup about every week automatically.
So which Software on the Computers / or the "Server" would you recommend?
Or would you eve recommend me to use Linux on the Server? If so, which Software would you use then?
View 1 Replies
View Related
Jul 18, 2011
I've written two web pages that show the status of a internal application. The idea was to display both of them, on two different monitors, using only a single PC with two graphic cards. The system will be mounted to a wall and has no keyboard or mouse. That's why I need a script that will automatically launch two instances of firefox (in kiosk mode), each on it's own monitor.Currently the OS installed on the PC is OpenSuse, but I'm free to install a different linux flavor.So, how do I launch firefox on a specific monitor?
View 1 Replies
View Related
Feb 3, 2010
I need to create a single line of output from multiple and variable lines of input in a Linux bash shell script.
My input file looks like this:
Where there may be any number of umsecondaryphonenumber lines; if there is not a umsecondaryphonenumber line for a telephonenumber, I don't want to write any output.
So, the output file should look like:
The script I have so far is:
My question is - how do print each of the elements of an array in one record - i.e. what do I put in place of howdoiprintarray?
View 2 Replies
View Related
Mar 30, 2010
I want to setup a git repository, three of four users will contribute, so they need to download the code and shall be able to upload their changes to the server or update their branch with the latest modifications.So, i setup a linux machine, install git, setup the repository, then add the users in order to enable the acces throught ssh.Now my question is, What's next?, the git documentation is a little bit confusing,i.e. when i try from a dummy user account to clone the repository i got:
xxx@xxx-desktop:~/Documentos/git/test$ git clone -v ssh://xxx@192.168.1.104/pub.git
Initialized empty Git repository in /home/xxx/Documentos/git/test/pub/.git/
xxx@192.168.1.104's password:
[code]....
View 3 Replies
View Related
Nov 27, 2010
I'm quite new to Linux and wanted ask how I can install applications to any Linux distribution such as Debian or Red Hat so that multiple users can access and run that application. Should I be root to install applications to directories like /var, /opt
View 4 Replies
View Related
Jan 25, 2011
i have 3 groups on a samba server with about 30 user per group.I would like to know how to delete all the user in a group before adding new users.
View 1 Replies
View Related
Aug 4, 2010
filter bandwidth for some users (about 150, from 100.100.100.1 trough 100.100.100.250) on LAN. All LAN users connect to the internet through RedHat linux server and all I could do so far is to ban some of them using iptables and commands
-A INPUT -s 100.100.100.107/32 -j DROP
-A FORWARD -s 100.100.100.107/32 -j DROP
-A INPUT -s 100.100.100.235/32 -j DROP
-A FORWARD -s 100.100.100.235/32 -j DROP
I would like to set a download/upload limit for some of them, is that possible?
View 2 Replies
View Related
Sep 1, 2010
Id like to create a script to unlock multiple users rather than entering the command manually for each user.Im quite new to Linux and have not done any scripting so far. its possible to achieve what I want, and possibly provide examples or point me in the right direction? We are using RHEL 5.
View 4 Replies
View Related
