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I am anticipating multiple projects in Linux in the near future. I believe I am going buy a new, fast development laptop and was thinking about running Linux natively on the box for speed reasons (I usually run Linux in a VM on a Windows box).
However, I have been juggling with the idea of continuing to work with Linux in virtual environments, one VM per project. It seems to have the upside of environment isolation as well as strong portability. The downsides seem to be speed (since I am not running the OS natively) and isolation of some resources I would like to be common (let's say Pidgin, where I want to access common logs or something).
Are people doing this? What else is there to consider? Any insight would be great. Thanks.
Going with Preet's answer: As I always say..... unless you have a issue - don't optimise, and then first throw more hardware at it....In other words - why not try it. A linux host is likely to be very fast host for virtual machines. – Preet Sangha
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Ok so, my monitor is going black on random occasions. Mostly it is when i watch a video. It doesn't matter if it is on youtube, facebook, udemy or whatever other site.
I checked my cables they are all good. I also turned off the screen saver.
Any ideas what it could be?
there could be many reasons for this - bad drivers, bad cables, bad screen, GPU overheating and melting solder connections (I've experienced this).
the easiest thing to check is to see if the issue is in the computer itself. to do that, connect to a different monitor (using a different cable).
to check if it's a software issue, you could try running a LiveCD of a different OS on your computer (for example, Fedora or Ubuntu).
if the issue still happens even with a different OS, then it's likely a GPU problem - you'll need to either get that replaced, replace the mainboard (if GPU is integrated), or replace the computer...
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Whanted to get a openvms dev enviroment, where could use it to learn the basic command's to get feel for it without worrying about breaking anything.
So whanted to know if its possible to install a openvms iso image in Virtual Box
In case its possible where could get a openvms image or needed first to get installation cds and from those generate the iso?
if the cds are needed is there some online store that can be bought or the price is only afordable for companies?
only making inqueries to see if its possible and feasible, other wise gona give up the ideia of having a development enviroment.
Well what do you know so far, and what do you have so far?
Do you know that OpenVMS has a 40+ year history, was originally written for the (32 bit) VAX platform, ported to 64-bit Alpha (30+ years ago), then ported to Itanium and X86 (64 bit).
That X86 port will boot natively and you may want to ue VMware, Virtualbox or similar - within the current constraints and offeringg - visit vmssoftware.com for details.
For initial learning I recommend to just to use an Alpha or VAX emulator.
Those could run on a virtual machine, but there is no good reason.
Just run as process on whatever laptop/server your have running Windows (and some Linux options I think).
There are are several emulators out there, both free and commercial - google is your friend.
I happen to like/use FreeAXP for Alpha running under 64 bit windows - just Google.
There is no Itanium emulator.
Do you have access to the software distribution somehow?
For starters, why even bother trying to get your own system?
Just timeshare to get a feel for it.
For example SSH to decuserve.org [184.168.131.241 - ooops: 104.207.199.162 ] - ask for an account - presto!
Other timeshare options are available - and very valid to learn the basics (file system, editors, compilers,...)
Good luck!
Hein.
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I want to test some Ransomware. Therefore I wanna use VMware and create a virtual machine, where I can execute this software. I already deleted the Network device, so that no connection is possible between my computer and the VM. Do I need to know something more about it. Could it be possible that the virus breaks out and affects my PC?
Make sure that you are not playing around with Cerber 6 Ransomware because it has Anti-VM features that can easily bluff you when you are on the test. I just got to know the same from this post:http://ransomwares.net/cerber-6-ransomware/. I request you to read this post to know more about Cerber's new Anti-VM & Anti-Sandboxing features which makes it dangerous than never before!
Be sure to disable all shared folders. Also disable any CPU virtualisation acceleration, then you should be fine.
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I'm having a hard time understanding the big picture of GemStone for Smalltalk. I am aware of GLASS as an application server using Linux, Seaside and Apache. But I want to know if it is an usable environment for non-Seaside applications.
I'm also having trouble to finding some basic questions:
It is not clear to me if GLASS or GemStone/S is independent of the VM used. For example if I'm using a VM which supports black threads, does that mean that the GemStone/S will work transparently?
For what I've seen also it is not useful for 3D applications. For example, if my application developed in Pharo or VisualWorks uses OpenGL, may I consider GemStone/S for scaling up?
I've read that you may have objects in VisualWorks and objects in GemStone/S, but this confuses me a lot. How do I know if the object I've just created it is already persisted or in "client" side? In which case I need GemBuilder?
To get an understanding of the big picture of Gemstone/S, you can read Gemstone 101.
Many of your questions should be answered and some of them are also not applicable. For example, Gemstone/S is a complete Smalltalk implementation with its own VM. It also does not have a visual interface like Pharo, Squeak or Visualworks.
Suggestion: You need to split the question into several ones.
For example:
Is GLASS or GemStone/S independent of the VM used?
No, as far as I understand the question. GemStone needs its own VM. You cannot run GemStone on a VM of another Smalltalk.
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The company I work with currently has 10 windows boxes running various in house scripts, however occasionally one goes down and no one notices for periods of up to 24 hours because the data that is manufactured is only gathered on weekly intervals. Does anyone know of a management system that will notify when a box goes down and possibly shoot uptime and response statistics back to a web management system on a linux box?
There are many.
I use Nagios for monitoring Windows and Linux servers. You might also look into Zenoss. Both are open source.
http://www.pingdom.com/ is simple to use and you get a 30 day trial - 9.95 a month gets you a lot if you decide to sign on. have it for all my apps
I would have a bash script call ping on the machines and email me (or whomever is responsible) when a box goes down.
I've seen IPMonitor in use, and it is a very good tool (but expensive). Nagios is a free alternative, and it's supposed to be quite good, but I've never used it myself.
I know nmap has a way of showing you the machine's uptime when you use the OS fingerprinting option.