Web site security tools
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An Examination of Website Security Concerns
An unfortunate fact is that there are numerous ways in which web site security can be circumvented. Security risks are ever present which might have an effect on Web servers and LANs (local area networks) on which Web sites are hosted, even by the normal use of a Web browser.
Web Masters are in the front line when coping with the gravest risks. As soon as a Web server is installed at a site, a window materialises in the local area network through which anyone using the Internet can look. Of course, the majority of web site visitors see only what they are supposed to look at, but a few endeavor to find parts of the site which are not intended to be evident to the public. Iniquitous visitors would like to do more than only look; they make an effort to open the window and steal through. The harm they could cause might be mere vandalism, like changing the web site's home page with theirs which could say or put on view absolutely anything, or it could be robbery, like appropriating a customers or orders database.
It's hard to elude the likelihood that convoluted computer software contains bugs. No matter how methodically it's tested, there does exist as a rule a certain pattern of events or user actions, although it may be rare, that leads to a failure. Software bugs cause breaches in system security. A Web server is intricate software that can very possibly include a security weakness.
It is not just the complexity of a Web server that may instigate a glitch, but also its open architecture. Consider a CGI script as a case in point. A CGI script can be executed at the server in answer to a remote request from a client. It might be a request from an application or even the click of a button in a browser. If the CGI script includes a bug, there will be a possibility of a security violation.
Network Administrators also have to tackle problems from Web servers by reason of the risk they pose to the security of the local area network. Whereas there must be no unauthorised intrusions, admission has to be granted to web site visitors. This means that access to the network should be regulated. The Administrator therefore must perform a delicate balancing act. Even the most sturdy firewall may be compromised if the Web server is configured poorly. Bearing that in mind, normal use of the website can be unachievable if the firewall is configured poorly. Arriving at a perfect answer is even more tricky if an intranet is an element of the system. Normally, the Web server then must be configured to recognize and authenticate domains and user groups, which are liable to have varying permission levels and access rights.
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Most people using a browser to surf the Web think that they're doing it anonymously and safely. It is not so. Web browsers are able to process self-contained software programs on the client machine that are hosted by a website. Current browsers show a warning and ask authorisation to run those programs. Described generally as "active content", e.g., ActiveX controls or Java applets, these programs, if malicious, may easily deposit a virus or other hazardous software on the browser user's machine. After it's in the system it can inflict all kinds of damage and can be very stubborn to eliminate.
This is also a worry for Network Administrators. Web browsers afford a means for potentially malicious software to filter through the local area network's firewall. As soon as it is in the network, the harm it may inflict can extend from secretly appropriating private data to willful spoliation.
Besides the matters to do with active content, simply surfing the Web records a trail of the user's activities in the browser's history. This might be used by web sites and installed programs to ascertain a precise profile of the user's behaviour and interests. Despite the fact that this might be thought of as an invasion of privacy by some people, it can be advantageous by providing germane content at once, thus unburdening the user of the task of searching for it.
Secrecy is a topic that worries not just browser users but also Web Masters and Network Administrators in the actual transmission of information via the Web. TCP/IP (Transmission Control Protocol/Internet Protocol) is the fundamental language of communication for the Internet. When it was formed, security was not the principal aspect of its design. Both network and Internet transmissions should therefore not be considered as essentially confidential. When the browser on a local PC downloads a sensitive file from the remote Web server, or the browser user fills in a form with private data and clicks the 'Submit' button, the transmitted information may be intercepted without authorization.
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