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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

security11/25/2009Daniel Fredriksen
  Q: Just wondering if there is any way for me to detect if a keylogger program has been installed on my ...
  A: A physical keylogger would be present between your keyboard and PC connection. If you search that ...
Hidding your computer on a wireless network11/25/2009Denis Mello
  Q: Im using Windows Vista 32 bit OS. When I am connected to the Wireless network i am able to see my ...
  A: Greeting Linges. I would write for you describing all the steps, but I think it should be better to ...
Connected from home11/23/2009Denis Mello
  Q: My system at home is simple: DSL password-protected, and Belkin wireless with bilt-in firewall, ...
  A: I'm really impressed. You have more security than I in home. My question is: Do you really need it? ...
Connected from home11/23/2009Ramon Zammit
  Q: My system at home is simple: DSL password-protected, and Belkin wireless with bilt-in firewall, ...
  A: hey rick i am amazed at the level of security you put at your home, looks more like a corporate ...
computer monitoring by P.I.11/21/2009Daniel Fredriksen
  Q: Good morning. I'm looking for a private investigator in order to try to discover whom (within ...
  A: It could be a combination of software/physical devices, but mostly it would involve some kind of ...
Wi-fi / iPhone11/16/2009Ramon Zammit
  Q: my question has to do with using my employers wifi network with my iPhone. Can my employer see what ...
  A: yes as a matter of fact he could be able to see where employees go. in fact some systems are exactly ...
remove antivirus system pro11/14/2009Daniel Fredriksen
  Q: I have antivirus system pro on another laptop. I have tried everything suggested on removal sites. ...
  A: What operating system are you using? When you say tried loading to another cd, do you mean windows ...
Local Area Connection Status in Command Line11/11/2009Denis Mello
  Q: Is there any to retrieve Local Area Connection Status in command line instead of opening the lan ...
  A: As far as I know, there is not a command line that provides what you want. Only installing some tool ...
Local Area Connection Status in Command Line11/11/2009Denis Mello
  Q: Is there any to retrieve Local Area Connection Status in command line instead of opening the lan ...
  A: Yes, there is a command line. Depending on your O.S, you just have to do the following: - Go to ...
Paypal/Amazon11/11/2009Ramon Zammit
  Q: My computer is about six years old. I have had this problem for some time, however, I am tired of ...
  A: now i am getting a better picture of your problem! did you try using another browser by any chance? ...
blocking sites at work11/4/2009Daniel Fredriksen
  Q: You may be predisposed to tell me to piss off, but here is my question. Our IT guy at the Office ...
  A: Just the occassional popup ad. An alternative is to setup a VPN at home, connect to that VPN from ...
blocking sites at work11/4/2009Daniel Fredriksen
  Q: You may be predisposed to tell me to piss off, but here is my question. Our IT guy at the Office ...
  A: Site blockers like SonicWall and NetNanny can be annoying. If you are lucky, you might find an ...
blocking sites at work11/4/2009Denis Mello
  Q: Our IT guy at the Office has installed some kind of basic blocking software that blocks all kinds of ...
  A: I'm really sorry for responding you so late, but I got stuck in my business and I had not enough ...
M.S. Exchange Issue11/3/2009Denis Mello
  Q: I know you are not going to tell me how to do this even if you do know but maybe you can point me in ...
  A: Not so sure. Why I wouldn't tell you? There are some tools intended to recover the password. You can ...
M.S. Exchange Issue11/3/2009Daniel Fredriksen
  Q: I know you are not going to tell me how to do this even if you do know but maybe you can point me in ...
  A: Aside from reformatting the computer and restoring a recent backup of the data? They did have an ...
email & identity theft11/3/2009Daniel Fredriksen
  Q: I will be traveling outside of the country and as a precaution to losing my passport and other ...
  A: Absolutely, but there are steps you can take to reduce the likelihood of such an occurrence. First, ...
How to limit a tenants internet and block sites?10/28/2009Denis Mello
  Q: my dad has two tenants from a school who use his internet but they download movies. how can he limit ...
  A: He can do it by several ways. One is to negotiate the mounth amount of megabytes/gigabytes that the ...
Lotus Notes chat privacy10/25/2009Denis Mello
  Q: Can the instant messaging facility from Lotus Notes series be decoded or subject to any surveillance ...
  A: I did not realize this question in my pending questions. Sorry for responding so late. I've never ...
Internet use10/24/2009Denis Mello
  Q: My employer is very restrictive on computer use at the work place. Many sites are blocked through ...
  A: Yes, he can do it through remote programs installed on your laptop that can monitor what you do ...
email security10/24/2009Denis Mello
  Q: Mello. (Please note, my question may appear at first to have nothing whatsoever to do with computer ...
  A: Good question. If I were a thief I would do it differently! I would open your e-mail, turn it fake ...
email security10/24/2009Denis Mello
  Q: Mello. (Please note, my question may appear at first to have nothing whatsoever to do with computer ...
  A: I understand your concern. And you have to had it. Yes, it is possible to someone take your email, ...
Internet connection problems10/21/2009Dave Mitch
  Q: I've lost internet on my computer, I've been having problems all week getting online now I can't at ...
  A: You most probably have a virus / worm - which is not being detected by avast/zone alarm/ adware. I ...
Problem with website10/21/2009Daniel Fredriksen
  Q: This is very strange because my sons name is Ryan Stewart! I do know a good bit about computers, ...
  A: the site is probably keeping track of you using two methods- cookies and your IP address. The cookie ...
Bizarre Gmail messages, sent and received10/19/2009Dave Mitch
  Q: Dave, Thanks for taking the time to read this email. For the last week or so, I've been received ...
  A: The screenshot does not reveal much. Anyway, enable your spam filter (if it already isnt). Also ...
orkut10/9/2009Dave Mitch
  Q: i am a student in college.in my college,orkut and some other websites are blocked.i tried using ...
  A: My first advice is to avoid orkut - atleast while using the college network. It's a major ...
orkut10/9/2009Ramon Zammit
  Q: i am a student in college.in my college,orkut and some other websites are blocked.i tried using ...
  A: hey ankit could be, that in your country some websites are not allowed because of the law of the ...
msn security10/8/2009Dave Mitch
  Q: my question is regarding saving msn chat history to my laptops hard drive. is it at all possible for ...
  A: it is more likely that if someone compromises your msn account - the chat logs would reside on the ...
anonymous surfing10/6/2009Dave Mitch
  Q: I would like to visit websites anonymously. For example, if I visited somebody's webpage, or social ...
  A: You can use a software like "tor" (download link here -> www.torproject.org/download.html.en )to ...
codecs10/5/2009Ryan Stewart
  Q: *( i many videos that i try to play and say they are missing different codecs like CoreAAC Audio ...
  A: Scott, First, you need to uninstall all of the codecs you downloaded and restart your computer. ...
McAffe Security updates10/3/2009Dave Mitch
  Q: I purchased and installed Mccafe anti-virus through CD. The updates are failing because Mccafe is ...
  A: If your McAfee is genuine, I would suggest you take a screenshot of the error message windows (Press ...
Mccafe Security updates10/3/2009Ryan Stewart
  Q: I purchased and installed Mccafe anti-virus through CD. The updates are failing because Mccafe is ...
  A: SV, The first thing you should do is check the Automatic Update settings in McAfee and make sure the ...
network attack10/3/2009Dave Mitch
  Q: myself nitin from India . i have an adsl 256kbps net and using kaspersky internet security 2009.sir ...
  A: Update your XP to SP3. Also use Autopatcher (available as a free download at ...
Which free AV is right for me?10/2/2009Ryan Stewart
  Q: I'm currently trying to decide what antivirus I should get, and I would like some help deciding. ...
  A: Dylan, I need a bit more info so I can provide you with the best recommendation: Which operating ...
Allowing MSN through ISA 200610/1/2009Ryan Stewart
  Q: Clients connected to this server cannot access MSN but they can see all websites. How can I allow ...
  A: Giorgo, Pull up the ISA management console and expand the Access Policy object > Right click on ...
linkseys wireless g - router access9/25/2009Ramon Zammit
  Q: I recently set up a wired connection to my computer and at the same time was also able to access my ...
  A: why don't you try to connect your ipod to another wireless router just to confirm that its wireless ...
Enexity9/21/2009Ryan Stewart
  Q: My name is Paul and I am the supervisor of a hematology laboratory that is evaluating a new ...
  A: Hey Paul, I'd like to provide you with an answer that's tailored specifically to your situation ...
porn appearing that wasnt downloaded by me9/21/2009Dave Mitch
  Q: I have a secured/firewalled desktop with cable internet. I am constantly finding porn on my computer ...
  A: What exactly do you mean when you say "cant secure my wireless connection because something that I ...
porn appearing that wasnt downloaded by me9/20/2009Dave Mitch
  Q: I have a secured/firewalled desktop with cable internet. I am constantly finding porn on my computer ...
  A: You will need to secure your wireless connection. Here are a couple of links which offer guidelines ...
China Standard Time9/17/2009Ryan Stewart
  Q: Ryan: I am not "computer literate", and I'm not even sure Internet/Network Security is the correct ...
  A: Fred, It sounds like the client who sent you that email accidentally tweaked the regional settings ...
Calculate Network Activity9/16/2009Ryan Stewart
  Q: when we double click the active network connection icon from the system tray and check the stauts... ...
  A: Inayat, The number of bytes under the Received and Sent columns tell you how many single bytes have ...

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Questions by
Active Experts:
Ramon ZammitDenis MelloAmit
Sean-Philip OriyanoDave MitchDaniel Fredriksen
   

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