Dennis Faas's picture

Explained: How is My IP Assigned / Determined (IPv4)?

Infopackets Reader Izzy M. writes: " Dear Dennis, I am trying to figure out how IP addresses are assigned using IPv4 (IP addressing version 4), but can't seem to find a straight answer online. My question: is there a certain number that my IP ... address has to be? Is there any correlation between my IP address, subnet mask and default gateway? How is my IP address assigned or determined? Thank you in advance! " My response: I think the reason you can't find an answer to this question is because this is an extremely broad question. To put this as simple as possible: the answer to your question ... (view more)

Dennis Faas's picture

How to Fix: Can't Connect to Domain Controller (DNS Does Not Exist)

Infopackets Reader Sam G. writes: " Dear Dennis, I hope you can help! I own a small business and we recently purchased a new, refurbished Server computer running Windows Server 2012 R2 DataCenter. I have set up the server as a domain controller, and ... now I'm trying to connect to the domain using my PC here at work - however, every time I try to connect, it gives me the error ' DNS name does not exist. (error code 0x0000232B RCODE_NAME_ERROR) '. Of course the error message is much longer than that. I am not a network administrator and admittedly not very knowledgeable when it comes to Windows ... (view more)

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Extend Wireless / Wired Network, Share Internet (2 Routers)

Infopackets Reader Bernie H. writes: " Dear Dennis, I have a hard wired DSL Internet connection at my office. If I want to add more connections in order to share my Internet with more computers, can I daisy chain another modem to the current one? Or ... do I have to replace the current one with one that has more sockets (ports) available? " My Response: You don't need to replace your current router -- you can easily chain two or more routers together. All you need to do is connect the two routers together using any LAN port on each of the routers using standard RJ45 (Ethernet / network cable). Do ... (view more)

Dennis Faas's picture

'Windows 4 All Os', and 'Rogue Dhcp Detection Tool'

Windows 4 All Os Windows4all.com is a Silverlight-based online virtual operating system. It is is a website that simulates an operating system inside your web browser. http://windows4all.codeplex.com/ Rogue Dhcp Detection Tool Rogue DHCP servers are ... those DHCP servers that are misconfigured or unauthorized unknowingly or those that are configured with a malicious intent for network attacks. Security threats are caused when malicious user with rogue DHCP server can spread bad network parameters and thereby sniff the traffic sent by the clients. Rogue detection tool is a tool that checks if ... (view more)

Dennis Faas's picture

Using a software firewall and hardware firewall in tandem

Almost a month ago we were knee-deep in discussion with respect to tracking down a hacker. In short, our ongoing discussion probed possibilities and known methods which might be used to track down a hacker, if one ever attempted to hack into *your* ... computer system. RE: Can I track down a Hacker?, Part 1 , and Can I track down a Hacker?, Part 2 . Shortly after Part 2 was released, I received an email from Dan Daily (editor / webmaster) of Danny's Daily . Dan's comments focused on a proposed supposition, which was sent in from John B. in Part 2 of our Discussion . To recap: John suggested to ... (view more)

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