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About johnyb98

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  1. system configuration and VMs

    Thank you !
  2. Good morning ! Please, I would like your opinion about the synthesis of my system and how many (max) VMs I could install. My system configuration is as follows: motherboard : ASUS M3N78 CPU : AMD PHENOM 9650 2.3GHZ QUAD-CORE BOX onboad GPU : NVIDIA GeForce 8200 mGPU RAM : OCZ OCZ2RPR10664GK 4GB (2X2GB) PC-8500 1066MHZ REAPER HPC EDITION DUAL CHANNEL KIT As for hard drive, there is no issue about that. A SATA II of at least 500GB is one I can install. What I want to make is install in a VM a Windows Server 2012 Active Directory server, and make some experiments with it in a couple of other VMs with different operating systems, in order to learn Active Directory. As you understand, I am not interested in neither AD DS server VM nor none of the other VMs to have much software power. I just want them to be able to exist in VMs, and make the tests. In the other VMs out of server VM, I would like to install different operating systems, like in one Windows XP, in other Windows 7, in other Windows 10, etc. So, from the description of my system, and what I want to make with the VMs I gave you, in a VM's RAM, do you believe e.g. 128MB or 256MB or something else (min) would be fine in order both to work the way I want, and from the other side not to damage the system? And, for the other staff, I must set a VM's settings. The basic I think of is to install a VM with the server AD, and three other VMs (XP, 7, 10). And the basic O/S of the system to be Windows 7 or Windows 10 (but my point of view is getting taller to Windows 7). And the virtual software to be VMWare 8 or 12. What is your opinion on this scenario? How many max VMs would be fine for my system? And, please, if it can be done without any problem for my system, could you please give me the basic settings of the VMs (RAM, HDD, etc.) ? Thank yoy for your time !
  3. Now that I read your answer very gingerly, I understood everything. I agree with all you said in your answer, and thank you for helping me solving the issue I had about what the author said, and for how scheduled site replication in active directory works (at least in such a scenario).
  4. Thank you for the reply. Even with your reply load balancing example, with all respect, I insist on my opinion, and yet do not understand. Even if there are at the same time two links (LinkA & LinkB) between the sites, after office hours, since not so much load data traffic will exist on main LinkB, the replication would be fine to be done through LinkB (main link) with no performance issue. So, replication traffic after office hours (so, not in 6 a.m. to 6 p.m. range) would be fine to be done through LinkB. So, LinkA (slower link) would be just a helpful reduce load balancing link in office hours (6 a.m. to 6 p.m.) and not in remaining hours in this scenario. In remaining hours LinkA would be just useless.
  5. Good morning. In the book I am reading, in section about creating a schedule intersite replication with site links, it says: "Or perhaps you want replication traffic to use one site link between 6 a.m. and 6 p.m., yet use another site link during the remaining hours.". Since the remaining hours the specific site link will be free, what is the reason not to use the same site link the remaining hours? I think it would be better to say the same hours use another site link, as long as another site link exists that could update directoty data you need to the first busy site(s). Have I understood something wrong? Thank you!
  6. Good morning! Please, I would like your help and advice on what would be the best solution in an office pc troubleshooting. In the system of the office, it is a second time that a problem came out. In the office there is no network. It is just a single workstation since 2013 of opening office-mini market. First troubleshooting on January 2018 (no pc trouble since 2013 which is market opening) The first trouble, on January 2018, was that, after workstation loaded Windows XP, and reached desktop, as you begin working, suddenly, screen got black. PC not turned off, just screen got black. I brought the pc in the lab, and opened the case. There was extremely plenty of dust in case. So much dust, that it was converted to fuzz. I took the very good blower that I have, and remove all dust inside. After that, I connected pc to current, and started it up. First time seemed like it worked fine. The second time I started up (restart), the same thing happened:lab screen got black. Because pc in the office-mini market all these years in not connected on a UPS, most possibilities is that no UPS, and, because all these years PSU was working many hours every day, PSU would be right to be replaced. But, before buying a new PSU, in my lab I have an unused PSU and unused VGA for testing such cases. So, I replaced PSU and installed PCI-x VGA and tested (the troubleshooting VGA is onboard). Everything worked fine after many PC's start up, and restarts. It seems that PSU is in bad condition, and VGA is in a bad case, too. The much wondering is that, because VGA is an onboard VGA, trouble might be the motherboard. I risked it, and came in conclusion to buy PSU and VGA. All these months it worked fine. Second troubleshooting yesterday, Sun, 20 June Since PSU replacement and a PCI-x VGA buy and install on January, no trouble came out until yesterday. Yesterday, opening market, my customer pressed power on button. After some seconds, when Windows XP logo (with blue running bar) displayed in the screen, a sniff burnt came out from pc side. No smoke. Just something burnt. He immediately powered off. So, now, I have again pc in my lab. Here is where I have stopped. I would like your advice in this all trouble. Some elements I will give you that might help you advice me on what to continue. new PSU that I bought and installed on January: https://www.corsair.com/ww/en/Power/vs-series-config/p/CP-9020049-NA new VGA that I bought and installed on January: http://www.sapphiretech.com/productdetial.asp?pid=6266479D-30D1-4810-9FBF-69B681F5909F&lang=eng Also, have some other defective PSUs from other replacements. Working but in negative form. Also, some other information that might help you, please ask me to answer. So, what would be your opinion and advice for all this? Thank you for your time!
  7. active directory job challenge

    I have begun studying with this book: http://www.dummies.com/store/product/Active-Directory-For-Dummies-2nd-Edition.productCd-0470287209,navId-322449.html It's really a very good book for active directory novice students like me. It analyzes really good the DNS system in both Internet and an intranet, trees, forests, OUs, containers, etc, and, up to the chapter I am till now, it gives student understand everything really good. From the other hand, because I am a networking geek, and I really adore networking, if in book reading I find some detail that I do not understand very well, I will go to internet, and via google search, pages, diagrams, from page to page, from link to link, I will for sure understand it. I will definitely agree with you that as much as somebody reads something this huge networking stuff like active directory, there is no doubt that he/she has to make practice to really understand how it works. Virtualization is the next step (after some more reading) that I will go to. Definitely I agree with LAwLz that proof like job experience or course certifications are the ones that employers should ask first. But, unfortunately, none of them do I have. Experience because now I study on it, and, of course, I have never worked on something like that. And, no certification for two reasons: a. shoestring budget b. even if I found from somewhere money for the courses, who could guarantee that date that I would have the certification in my hands, such a job would be available? I know it is a risk self-studying Active Directory, but, for now, it is the best solution I have.
  8. active directory job challenge

    I am sorry if I made my question misunderstood. I will try to make it as clear as I can. If you see the following job advertisement: "Wanted persons with Active Directory knowledge" and nothing more, what is the knowledge that I should have in order to challenge the job? p.s. I make a self-study of Active Directory. What is the minimum enough knowledge that I should have in order to challenge the job? The enough minimum knowledge.
  9. active directory job challenge

    Hello everybody. Please, I would like your opinion on the following... Talking about Windows Server 2008 or 2012 or 2016, and only its part/role of Active Directory, and just that. We know that Active Directory is a huge part of server and networking. But, as far as it concerns only this role of MS server, for your opinion, or your experience, could you please tell me the subjects that I should be prepared in order to have chances to challenge a job? If you could for e.g. make a list of 1. 2. 3. 4. etc Thank you for your time!
  10. router "listening" port

    No. I do not want to remote desktop to the public. And I also do not want to remote desktop to somebody specifically. I am just trying to understand about port forwarding, and specifically what this guy on next video said about external port (53000). I hope now I make clear what I say in B. video only 4:12
  11. router "listening" port

    As far as it concerns port forwarding, A. what is the difference between internal and external port in a rule? B. I have seen in a video that for remote desktop app (port 3389), in order not a hacker to send rrquests with 3389 port and sometime is being accepted amd hack, in the router as external port you can entet eg 50000, and internal 3389. Do, that is secure. Can you ecplain this? And last one: C. As for external port, you may enter the port that router listens, and afterwards you can either send it to the same port or reroute to anothrr one. What is this with same or rerouting port? I know this is time consuming, but it is very important to me to make all this clear. I would really appreciate answering these.
  12. router "listening" port

    Hello everybody. When we say "that router LISTENS to that port", can you please in simple words explain what do we mean by saying "listen"? Also, I think this is used in port forwarding. Can you give me an example of ips and ports in a listening scenario? Thank you for your time!
  13. In youtube settings, whenever a new video is uploaded in a channel I subscribe, I have set it to receive a notification. It works. I receive the notification in pc or mobile phone. But there is a problem. If I receive the notification first in pc browser, I do not receive it in mobile phone at all. On the other hand, if I receive it first in mobile phone, there is no problem. I will get it in pc browser when I open it. I try to find in youtube settings how to correct it, but cannot find something. Is there any way to fix it? Thank you for your time!
  14. what should I read?

    Good evening! What I wanna do is my home whole internet bandwidth to share it on the devices that are connected to the wireless modem-router the way I want. e.g. if my total bandwidth is 30Mbps, and I have a. one TV on the modem-router connected b. 2 PCs cable connected on the router c. 4 tablets wireless connected on the router I am looking for a way to divide the bandwidth as follows: a. TV : 10Mbps b. each one of the 2 PCs: 5Mbps c. each one of the 4 tablets: 2.5Mbps And to make it more precise, TV and 2 PCs always (constantly) will have their bandwidth (20Mbps total), and all other devices to share the rest 10Mbps. Also, if a friend comes to my home, and connects to the router with e.g. his mobile phone, then: a. TV : 10Mbps b. each one of the 2 PCs: 5Mbps c. each one of the 4 tablets and 1 mobile phone: 2.0Mbps Is there a way to do this? Not knowing what it is, I have heard of Quality of Service (QoS). But I do not think this is the solution to my question. QoS is for setting priority and not dividing bandwidth. Thank you for your time!
  15. wireless fan controller

    I am sorry for using the word "kits". It was a mistake of mine. The thing I am interested in is just fan controller. Neither in my country (Greece) nor the shop I usually buy use the term "fan controller kit". The say just "fan controller". As I told before, this is the firs time I come in contact with something like that, and I made a mistake in the term. If you have a little time, please correct the topic title from "wireless fan controller kit" to "wireless fan controller". With fan controller, I am referring to something like this one. As you said before, 5.25" bay fan controller with a touch screen. But, you also said that modern motherboards tend to have good and better fan control options than these 5.25" bay fan controllers. Because I still have not come in contact with the client, and I do not know (and if he can give this piece of information) his motherboard manufacturer/model, could you give an example of such a motherboard? I guess that the motherboard has an on board fan controller, that will do all the job of the fan rpms, and all the final user will have to do will be only to remotely use the RGB color ability of the fans. As for the thing you refer to at the end, yes, you are right. The client wants particularly quiet fans. He has not told me some specific manufacturer/model. All the information I still have is that he wants to mount four 120mm quiet fans in the case. The point is that he is just asking some information from me. He now lives in another town, and I do not support him closely. I did closely supported him, when he lived in the same town with me.