Antivirus software for Ubuntu is available in two types: one prevents initial infection and the other removes already installed software. Linux is secure, but antivirus software is necessary to prevent viruses, spyware, and malware. Antivirus software scans files for viruses and removes them from the system.
There are several schools of thought about installing antivirus software for Ubuntu®, one of the most popular Linux operating system installations available as of 2011. There are viruses, spyware and malware on the internet that will work and may compromise an Ubuntu® installation if the safety precautions are not taken. First, there are two types of antivirus software available for your operating system. One prevents the initial infection, while the second removes already installed software. Using both types in tandem can help increase the already strong security that Linux software enjoys.
The Linux operating system has long had a reputation for being very secure. This is partly due to the practice of requiring proper system permissions to run programs or access information. For a long time there was no antivirus software for Ubuntu® because it was thought to be unnecessary. It was believed that operating system permissions would prevent malicious software from running. As web browsers became more complex, it became more likely that a hacker could write a program in a web application language that would find a way to run on an Ubuntu® system and compromise security.
One of the main types of antivirus software for Ubuntu® is a download scanner or a file scanner. This is software that examines a file viewed online before it is loaded into a web browser or other program, or examines a file that has been downloaded but not checked out. It works by trying to identify the signature of a computer virus. A signature is a distinct piece of computer code, like a fingerprint, that shows that a virus has been embedded within a file. More advanced antivirus software may have an internal library that can extract the harmful virus and repair the original file, making it safe for use.
The other type of antivirus software for Ubuntu® is intended to scan hidden or less obvious areas within the file system to find viruses that have already been implanted in the host system. This can sometimes be very difficult to remove, because so many security features will have been bypassed or bypassed, possibly causing a user to grant high-level permissions to malicious software. Antivirus software for Ubuntu® can scan the file system directory structure for known files or traces of files that may indicate the presence of a virus or that it has been attached to existing files. In most cases, it can be removed, but there are some types of computer viruses that can prevent other software from removing infected files.
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