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CimmerianX
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661 posts since Jul 2010
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ARe you pinging via IP address or hostname.

if IP, then you have basic connenctivity but have not tested resolution. Test with hostname.

if hostname, then resolution and connectivity are fine. Check for viral activity.

if you only tested IP, then check that your DNS servers are set correctly then ping www.google.com. If you get a reply them dns and ip routing are fine. I would check for proxy config or even virus like activity.

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since18
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setup time/date correct in computer...

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rch1231
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Hello,

I am not sure if I will get this right but here is what I believe they are trying to get you to consider. If you wanted to run a chat room on the internet what would you have to have as far as a system:

  1. Network: Fixed location on the internet via DNS and preferrably a fix IP address.
  2. Network: Enough bandwidth to handle multiple chats with multiple chat rooms.
  3. OS: Enough drive space to allow storage and chat session information.
  4. Network: Security for the system and protection from hackers(firewall).
  5. OS: Powerfull enogh server to handle multiple chats.
  6. OS: Chat web site or interface for clients.
  7. OS: Security for the chats and registration protection like captcha.
  8. Network: Port to run chat on.
  9. OS: Database to hold user infor, chats and logs.

Again I may have the wrong idea and I amy not be specific enough on the answers but this may get you started.

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JorgeM
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I figured. Homegroups need to be on the same subnet.

http://m.windowsitpro.com/security/how-use-and-secure-windows-7-homegroup

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Wisnu_1
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Hello,

I have a college assignment where I'm told to create a chat room client server application. However one of the questions is "What are the networking and operating system requirements for chat room application?". And I'm stuck there, I did some research from google and books but quite can't get it. So this is my last resort, asking directly on this web site, and hopefully someone can enlighten me on this.

I just don't have any idea where to start, what "requirement" does the assignment mean? is it a simple answer of that it should support TCP/IP with Port blablabla opens? Meh, that doesn't sound convincing. If possible can someone please give me any direction on how to answer this.

Thank You.

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manel1989
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hi
no, just the server is on GGS and the others are on GGS1 and GGS2

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JorgeM
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I do not see the homegroup

Are all of the computers on the same subnet?

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mrgreen
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If you can ping just fine the connection should be ok. Maybe it is an issue with your browsers? Do you have a local proxy enabled? That could cause not being able to access any outside websites. You can check by going to settings in your Chrome browser -> Change Proxy settings under the 'Network' heading -> Lan Settings. If that doesnt work you could always contact your local network support team!

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manel1989
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Hello,

I create a homegroup on my network(GGS) and I have 2 access points( GGS1 and GGS2) ; my problem is that when I want to connect for exemple on GGS1 I do not see the homegroup which is already on GGS same for point 2: GGS2.

I want to connect to homegroup when I am on GGS1 or GGS2
  how to configure it

thank you very much for your help

MANEL

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webperson
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Hi I have a Windows 8 laptop and up until recently I haven't had any problems with it; it has connected to the internet fine. But then about two days ago, suddenly, it will show that it has full bars and is connected to the internet but when I try to use Google Chrome or Internet Explorer, neither allows me to access webpages. I've tried using the Windows Troubleshooter but it doesn't seem to find anything wrong with my connection and when I do a ping test all 4 pings are sent/received. At first, the problem was just with my dorm's wifi but now my computer doesn't seem to be able to connect to the internet through any wifi router. Any thoughts as to what my problem is? Thanks!

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rubberman
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It almost sounds like the WiFi and USB port are using the same interrupt. I suspect that the WiFi is a USB device, and the other USB cruft he is using is connecting to the same internal hub. Have him contact Asus about this.

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Zorrro
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It is good to know that I am on good track and few new things you have mentioned. To be honest I am little paranoid and it will be great if somebody shares their experince with such hosting on PC.

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JorgeM
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Here are some of the basics with regards to securing the PC/apps....

  • Rename/Disable the Admin and Guest account
  • Dont have any more local accounts defined on the system that what you actually need.
  • Ensure that all of your accounts have very strong and complex passwords.
  • If possible, change your account passwords routinely (every 90 days).
  • Make sure that you keep your system up to date with the latest security patches from Microsoft as well as other vendors for the products you are running on that system.
  • Dont share you passwords with anyone.
  • If your web application uses an authentication system, use SSL certificates to encrypt the traffic between the web server and web client.
  • Scan your computer and application regulary for known vulnerabilities.
  • Protect your local network with a firewall.
  • Protect your local computer with a local firewall if your local network will be sharing with other partially trusted networks like WiFi.
  • If you are going to be logging onto that computer regularly and using it as a workstation (not a good idea), be careful not to visit sites that could infect you with malware. Be careful not to open email attachments that could infect your system.
  • Ensure that your web application while being developed includes secure coding practices to avoid SQL injection/cross site scripting attacks.
  • Make sure you validate all of your user's input, not just on the client side using javascript, but also server side.
  • parameterize all of your input, do not assume that your input is not dangerous code.
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Zorrro
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I will be hosting a website on windows 7 using Apache and a java based project tracking web application called jira on Tomcat using reverse proxy method. To secure that web application and my PC what steps should I take and from where should I start?

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toomutch
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39 posts since Jan 2012
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Hi All,
My boss has an Asus K53e laptop running pre-installed Windows 7 Home premium. This connects wirelessley to the router at work, and also to his router at home. When ever ANY USB device is plugged in (printer, iPhone, memory stick etc), or is unplugged from the laptop, a pop up appears saying 'wifi has been disabled'. To be clear, he doesn't just lose connection to the router, it becomes disabled. He has to go back into 'Intel my Wifi' utility and enable the device for it to reconnect. Same problems at home and at work, so this is not related to one specific network / router. He also reports that there are intermittent drop outs of the wifi - I dont know if this is related.
Any ideas?
toomutch

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rubberman
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@mehak70
Trying to hack WiFi routers? Sorry, not allowed to help you with that here... :-( If you are just looking for anonymous browsing, try Tor or other VPN services.

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aradicev
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No cannot do this. Why would you want to do a thing like this?! The access to the router shold be restriced to a small number of people who are administrators. So why would you hide mac adresses?

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rch1231
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Hello,

You probably need an entry in the hosts file (not lmhosts) it is a file in c:\windows\systems32\drivers\etc and it you edit it with notepad MAKE SURE YOU DON'T SAVE IT AS A TEXT FILE. If it has the .txt extension it will not work.

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heXenDoKtor
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When you say "using" emails, do you mean that you are receiving emails from this person?
Assuming that you are, you can trace the IP through the email header; it can be found in the Received: from section. It looks like this:

Received: from [10.226.89.171] ([10.226.89.171:59492] helo=na6-app4-16-sjl.ops.sfdc.net...

In gmail, you first have to open the email. In the upper right hand corner of the email, just to the left of the ad banner, you will see a button containing a dark-gray, upside-down triangle. It opens a drop-down menu; select "Show original." A new tab should open in your browser that shows the email. That tab contains the Received: from section that I referenced above. If you use a different email service, like yahoo, etc., the process will be slightly different.

...All of this assumes that the email's sender is not spoofing the source address intentionally... or that the sender did not list multiple source addresses in an attempt to obfuscate their own.

Assuming that the sender's IP hasn't been spoofed or buried under several more, the last IP listed in the Received: from section should be the one you are looking for. If the sender did attempt to bury his/her IP, a little detective work should uncover the correct one (most of the time).

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CimmerianX
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This is a very common setup. I run split DNS in multiple locations and have both internal and external MX along with the helper records for exchange/lync/etc...

If the records were updated, then you must wait for the TTL to expire before DNS servers begin updating. I think you mentioned 24 hours above somewhere... New records are resolved right away if your DNS is working properly.

IF you run MS products, be sure you also updated the helpers for autodiscover, etc....

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