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  • Getting a list of packages installed on CentOS (by command line and on the web)

    - by sameold
    When installing CentOS (6.2), it installs a whole bunch of packages, but the installation is often very fast, it's hard to note the names of the packages. I have a couple of questions: 1) I'm guessing I could wait for the entire installation to complete and then query for the list of installed packages on the system. How do I do that? 2) Is there a printed list somewhere on the web, so I don't have to install the OS first just to get the list?

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  • Practical way to implement prevention of IP Spoofing

    - by user1369975
    I am an undergraduate Computer Science student and was hoping to gain some knowledge of ways to help prevent IP spoofing but all the resources I have tried out elaborate this concept in a theoretical way. I want to try out my hands at one of the techniques like: http://en.wikipedia.org/wiki/Port_knocking http://en.wikipedia.org/wiki/SYN_cookies How do I simulate this whole situation in my own system were I myself am the attacker and I myself have to defend it? And once I have gained an understanding of it, then how do I start translating that into programming terms?

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  • Ubuntu's gui "Open With" command is not memorizing the application

    - by Tom Brito
    In Ubuntu, when we right-click a icon and use "open with", there is an option to remember that application for that file's type. For some reason, my system is no more memorizing the application (I think it was aftare some update). And, even when I have already used the "open with" command, the application is not showing in the "open with" list, so I have, everytime, to go to "open with"-"Other Application". Any hint to solve this?

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  • Win7 UAC tokens

    - by Talc
    It is known that under win7 UAC you receive 2 tokens when you logon to the system: std user token and admin token. If I disable UAC, what should I get? only admin token? or still both with no consideration to the UAC status?

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  • Computer powering off after 10 mins or so

    - by Jack
    I have no OS installed, and I am trying to use a linux boot disc. However it is not a linux problem....if I just leave the computer on at the no operating system found message, it still turns off. I thought maybe it was overheating, but I am 90% sure that is not the problem. What else could cause this?

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  • Project Management

    - by user311188
    Hi: I've seen a lot of project managers but I don't have one that have all this features ... do you know any ? (if possible open source) project management (for multiple projects) task assignations or ticket system task owner or task creator says ESTIMATION each user has his own dashboard with "my tasks of today" gantt graphs thank you

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  • Unable to view users and groups

    - by Ewr Xcerq
    I am using Centos5 running on a VMWare but whenever I choose to open the User Manager menu from System-Administration, an error message always displays The user database cannot be read. This problem is most likely caused by a mismatch between etc/passwd and /etc/shadow or /etc/group and /etc/gshadow/. The program will now exit. I am a Linux novice and have no idea how to fix this tiny issue. ANy help is thankful. Thank you.

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  • How to set the default command prompt properties in Windows 7?

    - by Tom
    I have a command prompt shortcut which I customized to have a different font, etc. than the default. It works well, but when I start a batch file with the task scheduler then it uses the default command prompt settings to display batch progress. How can I customize the default command prompt which the system uses to have the same settings as my customized shortcut?

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  • How do you change the Time Zone in the Windows 8 Consumer Preview?

    - by Rowland Shaw
    It appears that installing Windows 8 on top of XP doesn't give you the option to choose the locale and other settings -- I've got the right keyboard layout restored, and can change the system locale to be for the UK, but there doesn't appear to be any way to change the time zone -- choosing the option to try and change the time zone gives error: Date and Time Unable to continue You do not have permission to perform this task. Please contact your computer administrator for help. [OK]

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  • Installing/dual-booting Fedora 17 on existing Windows 7 HDD

    - by Moose4
    I have a 64-bit Windows 7 install as the only partition on a 1 TB HDD, with about 350 GB free. I would like to install Fedora 17 as a dual-boot option on this system and give it about 100 GB to play with. If in the Fedora install utility I choose to shrink the W7 partition by 100 GB to give it space, will that cause me to lose my existing W7 data? And how do I go about setting up dual-boot (with Windows 7 as the default)?

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  • Nvidia SLI Disabled on Windows 8. I installed thte Nvidia Windows 8 drivers

    - by GregGoodwin
    Details I recently upgraded to Windows 8 Enterprise trial. After installing, I downloaded the Nvidia Windows 8 x64 install package, and it installed fine. After rebooting I got a message stating that SLI was disabled. And in the configuration menu the option to enable SLI is grayed out. I have confirmed the SLI is connected properly. Any thoughts? Screenshot http://i.stack.imgur.com/Tl0vt.png System Info http://db.tt/kwG9ADBS

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  • Change keyboard mapping (Input Source) from terminal in OS X

    - by simont
    I'd like to change the keyboard mapping from command-line (Terminal) in Mac OS X Lion (10.7). I can manually set it (System Preferences - Language & Text - Input Sources), and there's a nice option that lets me use different input sources for different documents, but I'd like to bind it to a key under zsh to easily swap between Qwerty and Dvorak layouts (I'm learning Dvorak, and having the option to switch easily would be sensational).

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  • changing date in solaris machine.......

    - by RBA
    Hi, I am in process of updating the Solaris Machine's System Date and Time.... I am using the following command.... Loginned as root........ # date -u 062800002010 Mon Jun 28 00:00:00 GMT 2010 # date Sun Feb 28 05:30:02 IST 2010 As seen above,, when i fire the "date" command again.... the new updated date doesn't get reflected......... Please let me know on what could be the issue....... Thanks....

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  • BIOS says 8GB RAM installed but only 6GB is available

    - by Hiroshi
    my machine is a Dell Studio XPS 9100 with 8GB of RAM installed. When I open the BIOS setup and enter the System Info, it shows that my machine got 8GB of RAM installed but only 6GB is available (yes this is from the BIOS only). In Windows 7 (64bit Pro) it shows only 6GB of RAM are available. But if I run CPU-Z then it can detect all 8GB RAM. The machine came pre-configured and I have never opened the case before.

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  • Western Digital External 1TB HDD, possible to mount internally?

    - by JL
    I have an external WD MyBook. it has USB, Firewire and e-sata connectors, but I would like to mount it internally in my desktop system instead for extra performance, and I'm also considered about how long it will last externally. Does anyone know if this is possible? Has anyone done this with success? I would have to remove it from the existing external chasis, but before I mess around with this, I would like to know if its even possible. Thanks in advance

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  • Is it possible to change the Raid5 chunk size of an existing device?

    - by AlexCombas
    I have an existing raid5 device which I created using mdadm on Linux. When I created the device I set the chunk size to 64 but I would like to test the performance of various sizes but I don't want to have to rebuild my entire system to do so. If it is not possible to do it live then is it possible to do this by booting with a rescue disk? Any advice on the steps how to do this, either live or with a rescue disk, will be greatly appreciated.

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  • how to update paths

    - by sujith
    I built my system in my own machine. then i host it server. the database store some paths ex:/home/dsppace/store/123.pdf like wise. when i host it the pdf is not open. how i settle this problem?

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  • service monitaring manager for Ubuntu ?

    - by mgpyone
    my mate told me that there's a tool to manage services in Ubuntu . System > Administration > Services. but unfortunately, I don't found it in my Ubuntu (9.10). Thus, is it easy to get it ? If not, is there any alternative GUI programs to manage services ( like mysql, apache and so forth) ?

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  • Can I mix yum and apt-get safely?

    - by leonbloy
    I understand that yum and apt-get operate on top of rpm, so that the data about installed packages in a linux system is responsability of rpm; so that neither yum nor apt-get keep their own data about installed packages . Is this true ? It is safe to install some package using yum and install another (perhaps related) package using apt-get (or viceversa)?

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  • VirtualBox without X server

    - by nccc
    I want to run a guest operating system under a Linux host with VirtualBox, but I don't want to run from within X. I don't want a headless configuration, I don't want to run VirtualBox in the background, I don't want any remote protocols. I just want the guest OS to take control of my console (keyboard, mouse and monitor) and render to the framebuffer directly, not from within an X window. Is this possible?

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  • 7-Zip compression on multi-core computers

    - by Peter Mortensen
    Does 7-Zip take advantage of multiprocessor or multi-core systems when compressing? For example, would there be a close to 16 times speed-up on a 16 core system assuming no disk or memory bottlenecks? Or is it is limited to 2 threads (2 times speed-up on systems with more than one CPU or core)?

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  • Is 768Mb RAM @ 333Mhz faster or slower than 512Mb RAM @ 400Mhz?

    - by Peter
    I have a simple question, but am not a hardware specialist. I have a small low-budget server with 512 Mb SD RAM, 400 Mhz. I have an extra 256 lying around, but it's 333 Mhz. I know I can add it to the system, and that it would automatically adjust the 400Mhz to 333Mhz. But my question is, which is faster/better for performance: 512 at 400Mhz, or 768 at 333Mhz?

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