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About Denis Mello
(Top Expert on this page)

Expertise
I understand the principles and the application of Network managament, from the OSI schema to mechanisms of detection, intrusion, security issues and vulnerabilities, how-to-attack and defend from crackers. I always look to be updated with the latest security holes. I also know OS like Windows 2k, 2k3, Linux, HP-UX and Solaris as best as other platforms.

Experience

Past/Present clients
General Motors, VIVO, Petrobras, OptiGlobe, Brazil Telecom, Hewlett-Packard.

   

You are here:  Experts > Computing/Technology > Internet/Network Security > Internet/Network Security

SubjectDate AskedExpert

Static IP Addresses6/24/2008Dave Mitch
  Q: I have a "dumb" question. We are getting an installation at our office from a company called Logix. ...
  A: A good description is available on wikipedia at ...
can somebody send me a virus this way?6/21/2008Drew Williams
  Q: i was recently on AIM in a chat room, and got into it with somebody......they claimed to be a ...
  A: Yes they can definitely do some terrible things to your computer. Buy a firewall (Symantec), get a ...
Tracking an Imposter Myspace profile6/19/2008Drew Williams
  Q: I have an ex who has created a fake imposter myspace profile of me, including my pictures and real ...
  A: You will need to get a lawyer that has a background in "cyber law" but clearly, you have some ...
Trouble accessing .mil and .gov websites.6/18/2008Dave Mitch
  Q: I'm hoping you can help me. I work for a small contractor and we have 5 computers in our office (3 ...
  A: Check the IP, Subnet mask and gateway entries on the laptop on which you want to check the ...
Website access blocked for certain countries?6/10/2008Drew Williams
  Q: This is strange. I am travelling & have been accessing http://www.mbf.com.au/ (an insurance ...
  A: Yes, you are absolutely correct. There may be reasons why you cannot access the site--and the ...
Job as a Penetration Tester?6/8/2008Drew Williams
  Q: I am considering getting a job in Penetration testing. I am pretty familiar with the Job specific ...
  A: Pen-testers are usually part of pre-sales teams, high-end consulting contracts, or spot-checkers for ...
Bank and Paypal6/5/2008Dave Mitch
  Q: My question is regarding a transaction between The Royal Bank of Canada and Paypal . Using a ...
  A: Was the e-cheque transaction between your bank account and Paypal on a secure (https ) connection ? ...
VPN and what files are transferred6/4/2008Commander Chris Wagoner
  Q: If I am away on a business trip and connect to the internet using the hotel's IP service and perhaps ...
  A: No it is not. But the files are still on your computer, and if its a business computer, unless you ...
Antivirus updation with a LAN computer5/31/2008Commander Chris Wagoner
  Q: helo sir, In our office we have LAN connection with all others computers but the internet connection ...
  A: I an guessing from the information you gave me that the only computer that has Internet access is ...
uncomfortable with boys loitering in front of house to obtain free internet5/30/2008Commander Chris Wagoner
  Q: I hope this makes sense; some neighborhood boys have been loitering at the edge of my house, right ...
  A: What is happening is a crime. Accessing someone Internet without permission is against the law. ...
Transferring files from5/26/2008Commander Chris Wagoner
  Q: I stored some large files to xdrive.com. Now I want to transfer some of those files to another ...
  A: Hey Reza, I would Download the e-mail attachments (or entire e-mails) to a thumb/USB drive or ...
Internet Security5/23/2008Drew Williams
  Q: When is it safe to make payment on the internet by entering my credit card information? Someone ...
  A: The "S" in "httpS" means "Secure Server." First, three are a couple of things you should know. 1. ...
Transfer of file5/16/2008Commander Chris Wagoner
  Q: I have some bulky files that I want to send to a friend. I can't send my mail because mail capacity ...
  A: I actually had this problem myself before I got a remote computer acces system. But I was able to ...
Downloading files5/12/2008Commander Chris Wagoner
  Q: I'm not sure if this is your area of expertise but you definetly know more than me ;) Anyway, I am ...
  A: It sound like the web site has a windows specific program running the DL. I would suggest using a ...
internet4/22/2008Commander Chris Wagoner
  Q: I want to manage my internet bandwidth,i mean i want to find which of my windows installed programs ...
  A: I do not know of one that tells you each individual program is using. You can look at your systems ...
Mouse Problem4/17/2008Commander Chris Wagoner
  Q: Sir, Mouse of my computer suddenly stops working. Its an optical mouse & seemingly there is nothing ...
  A: There can be several reasons this is happening. Does your typing also hesitiate sometimes? Usally ...
Internet Access4/6/2008Denis Mello
  Q: We have a Sony computer using XP and want to block some access to the internet for our kids. When ...
  A: It's quite probable that someone else put a password before you. The hint was also set to remember ...
using mobile/cell phone to access the internet4/6/2008Denis Mello
  Q: I am sure this is pretty simple for you but I am slightly confused. I wonder if you can help. ...
  A: As in the local you're going to there is no broadband, you can do one of the following (depending of ...
Internet Computer Security4/4/2008Denis Mello
  Q: I have a laptop, I access the internet through linksys wireless. I have McAfee Antivirus with a ...
  A: Security is a concern that most of the users should take in account. Yes. People can remotely ...
Annoying CiD popups3/31/2008Commander Chris Wagoner
  Q: Greetings Commander Can you help me remove these? I know it can be done as I had the issue a couple ...
  A: Hey Barry, Since I know how annoying these stupid pop-ups can be I was able to DL the program it ...
Annoying CiD popups3/30/2008Commander Chris Wagoner
  Q: Greetings Commander Can you help me remove these? I know it can be done as I had the issue a couple ...
  A: See my last answer.. and here is another answer I found that was said to work by those that tired ...
Annoying CiD popups3/30/2008Commander Chris Wagoner
  Q: Greetings Commander Can you help me remove these? I know it can be done as I had the issue a couple ...
  A: Hey Barry, After a little research on CiD Popups here is what I found. The CiD pop-up is an ...
interference on computer3/30/2008Commander Chris Wagoner
  Q: I'm on a desktop computer at my home my wife has a laptop and my son has a PS which he plays on line ...
  A: You are not going crazy. Although having to listen to that all the time at night could make you go ...
Annoying CiD popups3/29/2008Commander Chris Wagoner
  Q: Greetings Commander Can you help me remove these? I know it can be done as I had the issue a couple ...
  A: Yep those teens can really mess up a computer can't they! LOL You need to have installed and ...
Norton vs. others?3/26/2008Commander Chris Wagoner
  Q: I am buying an HP laptop to run Quickbooks for my internet business and access my ecommerce back end ...
  A: I would have to say the best one is one that you install and keep updated and run on a regular ...
Laptop protection3/25/2008Commander Chris Wagoner
  Q: I just bought a new laptop,and I have heard of software that can track your computer if it is ...
  A: Computrace (www.absolute.com) and CyberAngel (www.sentryinc.com) are tracking programs that sell for ...
ip or url address track3/22/2008Commander Chris Wagoner
  Q: My daughter is 14 years old. There is a website called voyforums that concerns me. It allows people ...
  A: Yes there are many places out there on the Internet that are dangerous for young people and they get ...
Re: How to block the access to MSN & Internet Explorer3/17/2008Paul Walsh
  Q: Our workstations have Windows XP Pro that comes with Internet Explorer. Our company wants to block ...
  A: I have created a registry key to achieve this, you can download it from here: ...
IP ADDRESS3/14/2008Paul Walsh
  Q: I've got this guy from Africa trying to scam me. He uses religion as a front but then asks for ...
  A: There is no absolutely reliable IP address tracking available for a few reasons: (1) The IP address ...
IP ADDRESS3/14/2008Commander Chris Wagoner
  Q: I've got this guy from Africa trying to scam me. He uses religion as a front but then asks for ...
  A: Nigeria is widely known for its Internet Scams. You should report it to the FBI (if your in the US). ...
IP ADDRESS3/14/2008Drew Williams
  Q: I've got this guy from Africa trying to scam me. He uses religion as a front but then asks for ...
  A: Addresses are "zoned" based on a series of four sets of numbers. Each number is assigned to a higher ...
IP ADDRESS3/14/2008Denis Mello
  Q: I've got this guy from Africa trying to scam me. He uses religion as a front but then asks for ...
  A: Yes, they are. They perform a lookup over DNS Servers on the Net. Remember that, although the guy ...
Kerio Personal Firewall Alert3/13/2008Paul Walsh
  Q: A Kerio Personal Firewall alert popped up saying: an application is trying to communicate with a ...
  A: If you have the Mcfee version of Kerio KWF, a VPN tunnel is set to scan web and email traffic for ...
IP Changer?3/9/2008Denis Mello
  Q: Q:i have cable net in my home n office.i change IP address in home n office, this hard word for me. ...
  A: How are you? This time I don't know any software that do it, however there are some developments ...
Aboyt Spyware3/6/2008Denis Mello
  Q: Can any one tell wat actuallly a Spyware is? My IE ^ is not working properly. I get msgs like ...
  A: How are you: SPYWARE: computer software that is installed surreptitiously on a personal computer to ...
Nortons Problems2/24/2008Paul Walsh
  Q: We have the latest version of Nortons (360) and it keeps warning us that auto protect is turned off. ...
  A: This can be caused by a few things namely: (1) If a system restore was performed (2) Conflict with ...
Locate IP address of a poster2/24/2008Commander Chris Wagoner
  Q: Is there any possibilities to locate an IP address of a poster in a forum? I'm not an administrator ...
  A: Hey Big, Nope sorry, the only place the IP registers is on the computer hosting the forum or in the ...
disk encryption2/23/2008Drew Williams
  Q: I am an home user and have been using a computer for ages. As many users, I have some very personal ...
  A: Go to these sites and have a look around. I like them the most (for light work). But if you have ...
email security2/21/2008Paul Walsh
  Q: I have received emails from "myself". The emails are about supplying various pharmaceutical drugs. ...
  A: You're probably being "spoofed." The emails you're getting from yourself are returns that had ...
viruses2/19/2008Commander Chris Wagoner
  Q: I am not real computer literate - but I am getting messages saying I have a trojan horse - download ...
  A: You are not alone in not being sure what is going on. But you are better off than most because you ...

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Ramon ZammitDenis MelloAmit
Sean-Philip OriyanoDave MitchDaniel Fredriksen
   

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