What is anti-spam appliance? | ArticlesBase.com

<p>Internet has made communication easy and speedy. But we cannot ignore its malicious by-products like viruses and spam. Our inbox is full of mails from unknown senders who are promising us a fortune by just a few clicks of the mouse. But by opening the attachments we are inviting viruses in our computers. These viruses can make the hard disk crash as well. An unauthorised entry into our mailbox can cause serious damage to our data. Thank God!! There is something known as an anti-spam appliance which is hardware along with an on-board spam software installed in the gateway which prevents us from falling into tricky situations of such kind. With the help of a penetration test the vulnerabilities of a system or network can be determined. A Penetration test can be used as an anti-spam appliance as well.</p> <p>Technological development has reached such great heights that important business deals takes place over video-conferencing. Obviously, there is a lot of official data transfer over the internet as well. If you wish to provide satisfying services to your client or vice versa, a sound network should be your priority. A penetration test will ensure you have a secured network. It would check the strength of your network by conducting a few fake or mock tests on the network. If the network fails to respond correctly, it sends a detailed report to you. Vulnerability is classified as High risk, Medium risk and Low risk. A high risk is when a hacker can fully penetrate in your network. The attacker will take more time to access a moderate risk network fully whereas a low risk network is the least vulnerable and the attacker has to literally brainstorm to access your network. For every type of risk a solution will be provided in the report which you can adopt to fix the vulnerabilities. There is another part of the report of the penetration test which is the technical report. It would show how the fake attacks were made so that you can reproduce it if necessary.</p> <p>Spam are created in such sophisticated techniques that Anti-spamware are not being able to detect them properly. This is leading to huge financial losses. Where online payments have become very popular owing to the convenience, spam has decreased internet security. Maximum spam comes through the email. An anti-spam appliance stops the ‘unwanted’ or spam mails to reach your mailbox. These mails get collected in the ‘spam’ folder of your email. An anti-spam appliance scans all incoming emails. It checks various attributes such as the body of the mail, the email-address of the sender or the attachment, to decide its authenticity. With these appliances you also get the option of blocking an email address forever if it continues to send you ‘junk’ emails.</p><strong>About the Author:</strong><br /><p>If you want to stop spam or other network attacks, use an <a href="http://www.secpoint.com/protector.html" rel="nofollow">anti spam appliance</a> or get a <a href="http://www.secpoint.com/penetrator.html" rel="nofollow">penetration testing</a> done. You can download such applications online as well.</p>

How to Solve Disk Corruption Issues due to NYB Virus? | ArticlesBase.com

<p>The boot sector code, including of MBR, is executed automatically. Thus, it is the common target for computer viruses. If you notice a disk, which is infected from such viruses, you should not attempt to repair it before removing them. Doing so can completely damage your disk and make your system unable to boot. The safest trick to recover the data is to use a <a href="http://www.stellarinfo.com/partition-recovery.htm" target="_blank" title="Windows Data Recovery" rel="nofollow">partition recovery</a><strong> </strong>utility and to reformat the disk. </p> <p>To illustrate, suppose you try to boot a Windows-based computer system. The boot process might fail with symptoms like:</p> <ul> <li> <p>Error<em> “INACCESSIBLE_BOOT_DEVICE”</em></p> </li> <li> <p>Error <em>“MBR_CHECKSUM_MISMATCH”</em></p> </li> <li> <p>A black screen appears with a cursor blinking at the top left corner</p> </li> </ul> <p><strong>Cause</strong></p> <p>One of the top reasons for such symptoms is that you hard drive is infected from a stealth virus, such as New York Boot (NYB) virus.</p> <p><strong>Description</strong> </p> <p>NYB virus infects the Master Boot Record (MBR) of hard drives and thus can render the partitions inaccessible. It infects the system when you boot the computer from a NYB virus infected disk. When active in memory, the virus uses stealth technologies to prevent its detection.</p> <p>The virus replaces the original MBR with its own code and moves the original MBR at side zero, cylinder zero, sector 17 of hard disk. Thus, whenever the computer tries to read MBR, it goes to sector 17 and the virus remain undetected.</p> <p><strong>Solution</strong></p> <p>When the drive is infected with a NYB virus, the disk partition table and its pointers are set to offset value. Since the offset are not constant, so use of MBR fixing command like <em>FDISK /MBR or FIXMBR </em>is not recommended. If you use these commands, the entire partitions' information and computer boot ability is lost. </p> <p>To solve such issues, you should first remove this virus by using an appropriate antivirus software and then apply the disk repair utilities.</p> <p>If you fail in your attempts with no access to data, it is suggested to use a powerful partition recovery<strong> </strong>software<strong> </strong>and then reinstall the system. Partition Recovery<strong> </strong>utilities are high-end tools with graphically rich user interface and can recover lost, damaged or formatted Windows partitions.</p> <p>Stellar Phoenix Windows <a href="http://www.stellarinfo.com/data-recovery-services.htm" target="_blank" rel="nofollow">Data Recovery Services</a> are advanced solution known for complete retrieval of lost and missing Windows partitions. It uses powerful scanning algorithms while adhering to data safety. This Windows Partition Recovery Software<strong> </strong>is compatible with Windows 7 RC1, Vista, XP, 2003 and 2000.</p><strong>About the Author:</strong><br /><p>Bury Shane is a data recovery expert doing research from last 6 years on <a href="http://www.stellarinfo.com/edb-exchange-server-recovery.htm" rel="nofollow">exchange recovery</a> and <a href="http://www.stellarinfo.com/edb-exchange-server-recovery.htm" rel="nofollow">exchange server recovery</a>.</p>