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  • rhel configure: limit root direct login to systems except through system consoles

    - by zhaojing
    I have to configure to limit root direct access except system consoles. That is, the ways of telnet, ftp, SSH are all prohibited. Root can only login through console. I understand that will require me to configure the file /etc/securetty. I have to comment all the tty, just keep "console" in /etc/securetty. But from google, I found many peoples said that configure /etc/securetty will not limit the way of SSH login. From my experiment, I found it is. (configure /etc/securetty won't limit SSH login). And I add one line in /etc/pam.d/system-auth: auth required pam_securetty It seems root SSH login can be prohibited. But I can't find the reason: What is the difference of configure pam_securetty and /etc/securetty? Can anyone help me with this? Only configure /etc/securetty could work? Or Have I to configure pam_securetty at the same time? Thanks a lot!

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  • V MAX Anyone..Need to learn administrating VMAX

    - by kevinmika
    Hello All, This is going to be my first post here. I 'm working as an Administrator at SNI. I have been responsible for managing Celerra and Clariion,but this new environment has 2 VMAX boxes . Since, I don't have prior experience is managing symmetrix ,i am kinda stuck here ( no training as well) Can some body suggest me a proper link where i can learn the basics as well as the administrative part of V MAX. Thanks in advance for your help! Kevin

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  • How to force disconnect users from a box?

    - by LikeToCode
    how do you disconnect an active user logged in to a box? There should be a command line tool that comes with Windows, but I forgot it's name. It lists all the users logged in to a box and you can force disconnect of some, because, for example, you want to Remote Desktop to it and there's too many users.

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  • How should a small company administer their web server?

    - by John Isaacks
    We currently have our website hosted by a small company that is actually a reseller for Rackspace. They act as our server administrators. They configured the servers, handle the backups, if there is a problem, we call them and they fix it. We are growing and want to move away from our shared server to either a cloud or dedicated server. I am thinking cloud myself but I am open to either. The current company doesn't seem to want to offer us anything more than a shared hosting plan. I looked into cloud solutions at vps.net, with them I would have to be the server administrator myself. I am the website programmer but administering the server is outside my comfort zone. vps.net does have a $99/month plan for Pro-Active Managed Support but I am not sure if this is the equivalent on a server admin that is there when you need them. We could hire someone in house, but I think that would be overkill for our needs. I am not exactly sure what we need, I do know we need as close to 100% uptime as we possible can. and we need the ability to add/remove/change the server configuration/software/etc. when needed (though changes shouldn't be very often once everything is setup right). Can someone point me in the right direction? What do other companies do?

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  • HP ProBook 4540s - Can't find HP Protect Tools to activate fingerprint reader

    - by CandiM
    I got an HP ProBook 4540s in December--When I first got it, every time I booted up, there was a rather large icon, almost like a Windows 7 gadget, to access HP Protect Tools, but I had too much going on to mess with it right away and kept clicking on something like "remind me next time I log on" and determined to get acquainted with it after the holidays--But at some point in time, that icon went away and now I can't locate it at all-- I'd like to try, and probably use, the fingerprint reader and explore whatever else is among the Protect Tools, but now I can't find them or any folder or .exe to acceess them-- Can anyone help me find them?-- Thanks so much

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  • How does virtualization improve server utilization?

    - by Continuation
    The biggest benefit of virtualization is usually said to be improved server utilization. But why do I need virtualization for that? Say I got N physical servers that are lightly used. Why don't I just combine all the apps on those N servers into 1 physical server? This way I don't incur the performance penalty of virtualization. What does virtualization buy me in this case?

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  • Where should custom vmware-tools scripts go

    - by Cylindric
    I have installed the VMWare Tools into a test Ubuntu guest, and it's created the standard scripts as expected: poweroff-vm-default poweron-vm-default resume-vm-default suspend-vm-default I add some custom actions to the scripts, but it says in the top of the file ########################################################################## # DO NOT modify this file directly as it will be overwritten the next # time the VMware Tools are installed. ########################################################################## So where should the custom scripts go, if I'm not supposed to modify these ones? scriptsdir="`dirname $0`/scripts/`basename $0`.d" if [ -d "$scriptsdir" ]; then for scriptfile in "$scriptsdir"/*; do [ -x "$scriptfile" ] && "$scriptfile" poweron-vm done fi

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  • design pattern tools to use?

    - by ajsie
    i have noticed that every area has some tools you can use to make things easier. eg. css = dreamweaver doctrine/propel = orm designer // you dont have to hardcore code schemas manually and remembering all the syntax/variables mysql = mysql workbench // the same etc. in this way you get aided and dont have to type things the hard way, and can learn the structure, but then use GUI tools to help you develop faster. now i'm learning design patterns (singleton, factory, command, memento etc) and im wondering if there are some kind of tools you can use that will help you develop faster. i dont know exactly what tools i'm trying to find, just helping me when coding with design patterns (schema drawings? references?) are there any?

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  • Hyper-V CPU Utilization, Good Tools?

    - by yzorg
    I just learned a ton from this post: Host CPU% doesn't include child VM CPU%, specifically I learned that both the 'host OS' and 'child VM' are siblings within the HyperVisor layer. Are there good utilities for 'watching' the total CPU and other resource counters at the HyperVisor (hardware) layer? I know perfmon (watching special Hyper-V CPU counters) is the standard answer, but I've stayed away from perfmon for ad-hoc monitoring. Is there a good OSS or free tools to 'watch' the resource utilization as I create multiple new VMs running on the server? I'm a developer, so if there aren't any good UI tools to surface this data I'd consider creating one, but only if needed. P.S. My specific scenario is I'm creating new web, SQL and back-end server VMs for new Windows 8 Server and SQL 2012 (entire application stack). I need to monitor them for utilization and know when I need to grow beyond 1 host (I'll need to split the VMs into separate hosts as I hit hardware limits of the 1st host, and diagnose problems).

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  • Issue with Visual C++ 2010 (Express) External Tools command

    - by espais
    Hi all, Normally we develop in VS 2005 Pro, but I wanted to give VS 2010 a spin. We have custom build tools based off of GNU make tools that are called when creating an executable. This is the error that I see whenever I call my external tool: ...\gnu\make.exe): *** couldn't commit memory for cygwin heap, Win32 error 487 The caveat is that it still works perfectly fine in VS2005, as well as being called straight from the command line. Also, my external tool is setup exactly the same as in VS 2005. Is there some setting somewhere that could cause this error to be thrown?

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  • Domain controller failed to restore using windows backup tools

    - by Peilin
    Domain controller failed to restore using windows backup tools One Issue: One 08 R2 domain controller with fully daily backup(only one controller in this company) is out of services due to hardware issue. The below two methods i tried to recover to the new purchasing server,but it is fail. 1)First Method: Using the windows 2008 R2 CD to boot and carry out recover from backup. Everything is OK, but after reboot it will come out blue screen and restart again. 2)Second Method: a)Install the OS in this new server b) Reboot the server to DSRM. c)Using the Windows Backup Tools to restore the system states only After reboot, it will come out the blue screen error and restart again. I know this is may be the different hardware issue, but how to resolve? Or can we only restore the AD services not whole system status? Any suggestion?

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  • Are there any well known anti-patterns in the field of system administration?

    - by ojblass
    I know a few common patterns that seem to bedevil nearly every project at some point in its life cycle: Inability to take outages Third party components locking out upgrades Non uniform environments Lack of monitoring and alerting Missing redundancy Lack of Capacity Poor Change Management Too liberal or tight access policies Organizational changes adversely blur infrastructure ownership I was hoping there is some well articulated library of these anti-patterns summarized in a book or web site. I am almost positive that many organizations are learning through trial by fire methods. If not let's start one.

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  • How to organize external tools in Visual Studio 2010?

    - by Hamish Grubijan
    This is how one can set them up: http://www.c-sharpcorner.com/uploadfile/rmcochran/commandpromptinstudiotoolsmenu01152008103357am/commandpromptinstudiotoolsmenu.aspx My problem is that I have got too many of them set up, and I now need a separate sub-menu or two to keep them organized. I could not figure out how to do that. Feel free to ask if something is not clear.

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  • How to speed up request/response to django using apache or another solution?

    - by jbcurtin
    Hey all, I'm mainly a developer, but every now and again I jump into the sys-admin position. For the most part I've gotten away with deploying php and python apps using apache. I write today because I'm starting to research faster alternatives to apache, yet still have some of the core features I require like put and delete methods and the ability to connect to a socket via apache. ( This I have not tried, but might be a nice whistle if I ever employ comet on my apps. ) As you've probably guessed, I use javascript exclusively for all my websites utilizing deep linking for SEO support. The main areas that I'm looking to increase performance is the connection between the django apps and the web server to the client response. Every day I work my best to keep the smallest memory foot print as possible, however I am getting to the end of my rope when it comes to working with apache. In general, keep in mind that I'm just starting this research so I'm looking more for material to read then solutions at this moment. My main questions: Am I missing something about apache that makes it faster then everything else? What would be a good server environment to deploy just static files one? What are some of the leading open-source and paid alternatives?

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  • What kind of proxy acl rules should be applied?

    - by user42891
    I try to block sites in squid based on this article. Assuming you would want to block access to Yahoo (e.g http://www.yahoo.co.jp, http://www.yahoo.com, http://www.yahoo.co.in), you would ideally want to block all of the above URLs, if I use a regular expression and try to search something called yahoo it seems to get blocked. We are just interested in applying rules which would be most commonly used across all companies (e.g. social networking sites like facebook, orkut), porn sites (e.g. sex), gaming sites (games), movie & song download sites, and sites where they can upload data (e.g. rapidshare) What would be the common set of effective rules in achieving the above?

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  • Access denied errors in windows server 2008 for system administrator

    - by NLV
    Hello I've a HP Pavilion DV4 with windows Server 2008 R2 enterprise. My system is connected to a domain. I login using my domain account. I am the administrator for the local machine. But I'm getting access denied everywhere (file system, running commands, using visual studio..literally everywhere..) in my machine. What could be the problem? Any ideas? Please tell me if you need more information as I'm just a developer with less knowledge in system administration.

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  • Freelance for moderately complex admin support

    - by ongraphs
    Mailing lists and question/answers works great for problems that are independently encountered by several people. But sometimes we (as in experienced amateurs) run into problems that aren't so common, nobody has blogged about it and experts advice not readily available. For IT-admin related stuff can someone please recommend how can amateurs pay experts and get hands on advice. The kinds of problems I am talking about are like setting up nxserver or openvpn on freeBSD box. The install/config is not so simple, the documentation not easy for non-it professionals. Therefore getting step by step advice would be quite helpful. Thanks sandeep

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  • Deactivate any calls to Log before publishing: are there tools to do this?

    - by Nicolas Raoul
    According to Google, I must "Deactivate any calls to Log methods in the source code" before publishing my Android app (section 4 of the publication checklist). My open-source project is large and it is a pain to do it manually every time I release. Additionally, removing a Log line is potentially tricky, for instance: if(condition) Log.d(LOG_TAG, "Something"); data.load(); data.show(); If I comment the Log line, then the condition applies to the next line, and chances are load() is not called. Are such situations rare enough that I can decide it should exist? This is on the official checklist, so I guess many people do this on a regular basis. So, is there a tool that removes all Log lines? Preferably one that is not tricked by code like the above.

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  • Daemon Tools error (0xc0000006)

    - by Roberts
    I tried to reinstall Windows XP to Windows 7, but I could not install the video card drivers because the driver installation software only works on XP.I have launched the setup program with XP mode. After I installed the setup, I restarted the computer and Windows 7 wasn't booting.But that isn't the problem why I asked this question. The problem is that I have reinstalled my Windows 7 Ultimate to Windows XP SP3 and I wanted to install Dameon Tools.After installation I restarted the PC (as the setup wanted) and when the Daemon Tools launches it shows the error: Application failed to initialize properly (0xc0000006). Click OK to terminate the application.

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  • Best printing tools, components for windows.forms applications.

    - by mkus
    Hi, I have started to research for a printing component in our windows.forms based project. I want to benefit from your experiences. There are some popular reporting tools in .net world such as crystal report, active reports, xtrareports etc. Could you say advantages and disadvantages of these tools or other tools you suggest?

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