Take care of your computer security

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Take care of your computer security

The most common software that keeps the PC health and safety and should not miss is antivirus. Chase Online Its role is to block and remove viruses. You must understand the virus (or malware) and run any program that acts as destructive or do things that are not requested by the user (may be more extensive definition) are not confused when they say that program is executed, so The program is not necessary to be with exe extension is PIF, COM, etc. (newest MP3), or can be hidden as a macro in a Word document, so the doc extension, can be a Java script, etc.. The most destructive viruses (in terms of the costs involved) are considered those known as worms, worm, a virus that is spread from one horse to another type of virus it usually is polymorphic, ie change its signature to a particular time or from host to host. Once entered into the system due to worms, who created the virus can do anything with that host. It should be understood that any antivirus program is not perfect. Antivirus detects viruses based on their signature (signature = generally program specific piece of code), this means that to make sure that you do not have to download the virus vendor’s Web site, the last update of the signature based antivirus obviously must appear first update, which can last from a few tens of minutes and 3-4 days another way to detect viruses is the detection called “heuristic” and that basically uses a signature of a virus as a reference, and if you find a signature that is similar to a certain point (so not exactly) with the reference virus then consider it, this method of scanning has emerged in response to polymorphic viruses (which changes some of the signature at a time time or when infecting a new host (host)), unfortunately not proven method because many false alarms they generate, so that the first remains the best method, but that’s to bring you regular updates. Of course there are other methods of detection but not proved very effective (some antivirus programs do an image file with the registry or system files, compare them for later, etc.).
A basic fact should be fulfilled: to scan any software that brings PC (game, program, etc.), only files that should not scanned yet (as far as I know) are file “music” (wav, etc.), files file (tif, bmp, jpg …) and the movie (avi, mpg ….). All antivirus programs posibilitatatea to stay in the background, that means it will scan any file / program that is accessible, this is good, but can eat resources (especially RAM and processor). Recommended Antivirus (in order of personal preference) Avira (not “kneel system and it’s free), BitDefender (reached in 2010 is an integrated version firewall and may restrict the” exit “PC programs, Romanian, but the best detection Poor disinfection), F-Prot (a good antivirus removal, but detection weaker, which is very good is that it can scan and DOS), Kaspersky AV, NOD32 (pretty good), McAfee AV (scan average, good disinfection ), F-Secure AV (average), Norton AV (average scanning and aggressive – I happened to go to a colleague in PC by mapping a partition and began to scan NAV partition, proper disinfection), Panda (average).
Another type of program should not miss (especially if you have access to the net) is a firewall program, it was designed as a software filter for connections outside the PC, it basically filter everything through ports and according to established criteria, access or not and also hide the identity of the computer net.
What are Portuale? Although there is a single cable that “entering / leaving” net of in terms of hardware (UTP cable modem type, STP, etc.), however in terms of operating system software can access the net of the more “loopholes” (doors) called ports. In computers as humans, computers to communicate with each other and for to “understand” must use the same protocol (such as humans, for to understand that both should speak the same language) protocol is a set of rules that say how and under what conditions the data will be generally OS (operating system) know more protocols (a protocol suite such as TCP / IP). Depending on the protocol, it will use a different port for access outside the PC, such as HTTP protocol (used for browsing the Internet) uses port 80 (you can attach a different port protocol, but that would mean that the other end of the line, PC knows that there must Protocol for use another port, otherwise it will be done with data transfer protocol respectv, this change is generally rare, and only for security reasons) so the computer knows that if you receive data through port 80 (for example) then the data will handle the HTTP protocol, the number is several thousand ports, and only a few dozen specific protocols (20 FTP, 21 FTP data transfer, 80 http, etc.).
Protocols generally have specific ports (eg HTTP protocol is known for is no specific Portuale 80) ports called “Well Known”. Buuun, so ports are the way of access (in terms of software) programs to and from PC. Normally if not specified (although the newer OS’s come with some ports closed, although I think they should have come with most closed), the ports are open, so who wants to enter the PC can only through a port open, here comes the role of the firewall must allow access or not PC (through ports), it can be considered the guardian of the door-software PC. Normally the firewall should leave open ports “Well Known” and close the rest, but unfortunately is not always so. The firewall should be the option to stop / allow access to a particular IP (logical address of a PC) or stop / allow access through certain ports. For example we know that Windows has opened port 139 (it seems that some versions of XP with SP2 it closed), which is not related to any specific protocol, my recommendation is to close that port. Basically Chase Online those seeking to enter the PC (unauthorized) scans ports with specific programs, after he found an open port on your PC you can get without too many problems. So for those who have net (even occasionally, like dial-up) recommend to have a firewall installed. More recently, most software firewall supports a new feature, which is to restrict output net programs, for example if you open Internet Explorer and write an address, then firewall will warn if we allow that program to access the net of, if we will not allow, the firewall will block it and the program will give an error that says you can not contact the requested location because it detects a connection, although there is a connection, you can set that for some programs (most common) but only to ask permission to be granted access to the internet application. Recommendations by firewall (in order of personal preference) Comodo Firewall (free and much better than most to be paid), Blake (very easy to control, but with a less friendly interface), the built-in BitDefender, Zone Alarm (‘s free), tinny Personal Firewall, Norton Personal Firewall, Outpost Firewall, etc.. And Windows XP has a built-in firewall, but it is rudimentary and not recommended for use.
Another type of program that can affect the user is entering the category of adware / badware / spyware / internet monitoring. Definitions are: adware = an application in which advertisements are displayed (banner ads) while the program runs, badware / spyware application that sends data = any third parties without user permission, Chase Online , internet monitoring = any application that sends information about locations visited on the net. In general, programs tend to be part of several categories, that is to be and adware and spyware. These programs come with other programs, such as FlashGet (a download manager very popular) in the free version has adware, and so free and full version (at least up to version 1.3) contains a spyware, Gator (like it is name). RadLight Player comes with Alexa spyware.
At some point it’s hard to tell if it’s Chase Online or not, for example Windows Media Player 9 has a function that allows you to connect to a specific time to manufacturer’s website to download the update for, but only knows what’s progaramatorul send information and function can not be disabled only by removing the program. There are some programs by removing adware / spyware in it, then the program will not work. To get rid of this kind of intruders recommend Lavasoft Ad-Aware program (very good and free, easy to do updates, www.lavasoft.com) and Spybot Search & Destroy (very good and free, easy to do updates), Spy Sweeper , Spyware Doctor, MicrosoftAntiSpyware. Spybot Search & Destroy is especially useful for Trojans. Unfortunately Note that some programs only detect antiadware (70-80%) of the problem, then I recommend using 2-3 parallel programs (scanning to be done successively with 2-3 programs). A useful link would be http://www.adwarereport.com. Like regular antivirus signature update is recommended (actually these programs after the scan the signature).
Another program (or rather suite) should not miss from each computer is Symantec Norton Utilities and Norton Ghost as part of Norton SystemWorks. From this suite recommend Speed ​​Disk or separate O & O Defragmenter (equals Disk Defragmenter in Windows, only the best, those who do not know these programs defragment files, generally files are recorded on the HDD in clusters (groups of bytes), size of cluster may change but it means you lose all data on HDD, clusters generally have 32 KB, 76 KB file will take three clusters (two and a bit theoretical, but a cluster if a byte has occupied another different file can be written only in that cluster, instead of remaining open), the more clusters are smaller in size with so much less space is lost (full of empty clusters), but as there are more clusters will lose both SO of speed, optimal clusters are 32 KB. The problem often occurs when a file is modified, for example writing a doc, then come and rip a particular song on HDD, OS will continue song in doc file, and edit bay, writing more has been written will save the extra SO is taking place, that in continuing the song, so doc file is fragmented into at least two parties (and goes), this is where defragmentation program that is designed to stick fragments and continuously put hdd file, so OS will not waste time trying to access and search fragments all over the HDD. Another program that is very good suite is Norton Disk Doctor (equivalent of Scandisk in Windows, only the best ) or O & O Defrag. Another program suite is very good is the Norton Win Doctor, which scans the HDD for finding errors in SO (links no, programs lack registry indelible, etc.), it is better ( even for example) to other similar programs on the market because it has an aggressive detection method, and therefore there is no risk to delete files or registry that still are used by programs. Norton Ghost is the kind of program that can the partition backup (supports FAT16, FAT32, ext2 ,..), to SO (even linux) is a good thing to make a backup partition that is so, so if your computer is compromised (virus, software conflicts , etc.) then you just need to format the OS partition and put the files in backup OS which does not last more than 15 minutes to have a fresh OS and uncompromising. In due time installation / uninstall programs to load file registry with many entries are valid only for registry clean and jv16 Power Tools EasyCleaner recommend.
A good program for tweking and security is the XP-AntiSpy v3.x, as its name says, the program disables some settings considered spy category, each option is explained to help the program, for an option to be active must be checked in green.
Another program that you should not miss is Ntregopt which is freeware and can be found at http://home.t-online.de/home/lars.hederer/erunt, after installing and uninstalling programs is seen as a registry file size is growing, and even if it removes unnecessary entries, the size remains the same: a cause is that is their fragmentation occurs because Windows does not actually remove and place of the remaining so-called cheilede deleted registry hives, they are removed from the program Ntregopt .
About this should be a minimum of programs that do not usually miss from a user’s computer.
Recommended that all programs installed to bring the latest versions or updates to either the day, even with OS patches to be the day after the surgery you will notice that the OS is moving well and only suffers from problems The securtate known (like mblast that restart computer). In Windows you can bring latest updates in Internet Explorer / Tools / Windows Update, is given scan and wait until finish. I recommend only installing critical updates considered. Microsoft’s newest check if the license is pirated you use Windows Update and do not get Chase Online if you download, gives you an error, for those with such problems can be solved either by taking patches from http : / / www.softwarepatch.com or using Autopatcher Xp program.
The safest way to run a program “suspect” is to click the right button on the program’s executable file, we see the menu option “Run as” (If not, click the button when the right to and hold down the Shift key), tick the “current user” and “Protect my computer from Chase Online program activity and date” (of course you can also choose another user), this way allow the program to read registers but does not allow the program to modify the registry, more if you have NTFS formatted partition, the program will not alter / modify any files associated with current profile, the bad news is that some programs require registry modification, so it’s up to everyone to decide if the program is Chase Online.