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08:44
11-March-2010
Location: Home Page > Articles > 131361758
Protect you web connection
Navengado for the confines of the IRC I come across myself with a disparatada half quarrel, that shortly afterwards is clarified me as resulted of chacota that she has been made to an interview alegadamente paga/forjada (the case buzzy) for somebody of the TVI. It has part of the moral considerações and of the falseness of the certifications the truth is that the perigos for which the said alert interview is facts.
As the perigos the protections are real exist and must be used. Such as the Been one, that it does not only happen to the others, can happen it to it itself, if it is that it is not already to happen and voçê nor knows. Or it will be that it knows? It feels its linking to the InterNet slowest? Something of abnormal person if passes? Hands to the workmanship...
In this article that pertende not to be a tutorial one and before speaking to it of the protecções obvias says of the command netstat executed in it consoles of MS-DOS.
Note: In Windows XP for example. It goes to the button To initiate, choice To execute and writes in the window cmd. In the new window writes netstat.
Netstat is a command that allows it to see that linkings UDP and TCP are of moment in its computer. For they alem of the informacão on that protocol is used (UDP or TCP) has the information of its IP and the door in uso(Local Address), the IP of schemes and on door vice itself or turns (Foreign Address) and the state of the linking (state).
The IPs is a set of 4 separate numeros for end points and in the end of these it has colon and another one I number. (Example: 135.236.246.234:6667).
If the state of the linking will be ESTABLISHED is at this on moment to another computer. However what it is that can make?
Analizando the IP I obtain to know which is the door where the linking occurs. In the example, door 6667 is normally used for IRC, chat. Soon I must be to use one any software of chat and the reason to exist this linking in netstat is simple... the guilt is mine. But and if I will not be to use no customer of chat? E if will not be in this door?
It disconnect its modem? We go with calm.
If he was offended with some linking that it does not seem normal what it can make is to try to take off information on the IP. In the same one tracert IP consoles of MS-DOS executes the command.
Of one it forms simple, tracert it sends an order to the PC where he is on, but returns a reply for each ticket that has until arriving there, showing the number to it of nods or jumps until the a it schemes final.
If exactly thus it has you doubt on the reason of that linking, it has reported this situation to its ISP (who gives the service to it of InterNet) and waits the reply of them, or creates one thread in the security forum that inside of possivel we will try to analyze I obtain.
But to prevent disabores: Has one firewall? It has software of antivirus? It has software to detect spyware? It has its actualizado operative system?
If it has optimo, is little provavel that the linkings that saw are not normal, will be possiveis programs that it has installed in its PC that even runs them without its knowledge. It will only have that to verify in the Manager of Tasks that processes are to run in the memory of its PC.
Much information not? If he was worried, given that if he was paranóico had not placed a linking to the InterNet in this PC, has been remembered that softwares will be had that atraz I enumerated hardly "enter" in its PC, but leaves to say me to it: If they will have to enter exactly, hardly do not enter, but it will not be a joking miudo, will be a nightmare.
It can in consoles of MS-DOS to use the commands netstat/ and tracert/ to obtain more information on the commands. Questions are benvindas, make use.
by André Ferreira in
André Ferreira