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Worries that the notorious Conficker worm will somehow rise up and devastate the Internet on April 1 are misplaced, security experts said Friday. Conficker is thought to have infected more than 10 million PCs worldwide, and researchers estimate that several million of these machines remain infected. If the criminals who created the network wanted to, [...]
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Sometime it is necessary to block incoming connection or traffic from specific remote host. iptables is administration tool for IPv4 packet filtering and NAT under Linux kernel. Following tip will help you to block attacker or spammers IP address. Â The blocklist is create with an API I wrote and you can use wget to update [...]
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Data Execution Prevention (DEP) is a Windows Vista security feature that can help prevent damage to your computer from viruses and other security threats by monitoring your programs to make sure that they use system memory safely. If DEP notices a program on your computer using memory incorrectly, it closes the program and notifies you. [...]
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 xinetd, the eXtended InterNET Daemon, is an open-source daemon which runs on many Linux and Unix systems and manages Internet-based connectivity. It offers a more secure extension to or version of inetd, the Internet daemon. xinetd performs the same function as inetd: it starts programs that provide Internet services. Instead of having such servers started [...]
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Priority: HIGH Impact: Potential for database corruption or malware to be distributed to website visitors. Resolution: Verify blocking policy in web application firewall. Remediate the following web application and database flaws: 1. Poor/missing input validation of user-supplied data in the web application. 2. Poor/missing output encoding of user-supplied data. 3. Improper database permissions and/or SQL query construction. Who: [...]
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Online Identity Theft Identity Theft is the phrase used to describe an action where a person uses the identity of another to fraudulently obtain credit, goods, services, or to commit crimes. Examples of these crimes are bank and credit card fraud, wire fraud, mail fraud, money laundering, bankruptcy fraud and computer crimes. With the advance [...]
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Fighting spam email is a worldwide daily combat challenge. Email spam fight is just another daily server wide monitoring function of any sysad administering those email servers. Global spam email attacks and happens everyday regardless of country, server setup, domains, geolocation and public IP address you might have. Take a look of the top country [...]
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Why Secure Your Web Browser? Today, web browsers such as Internet Explorer, Mozilla Firefox, and Apple Safari (to name a few), are installed on almost all computers. Because web browsers are used so frequently, it is vital to configure them securely. Often, the web browser that comes with an operating system is not set up [...]
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1. Change Default Administrator Passwords (and Usernames) At the core of most Wi-Fi home networks is an access point or router. To set up these pieces of equipment, manufacturers provide Web pages that allow owners to enter their network address and account information. These Web tools are protected with a login screen (username and password) [...]
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This article written on 20/09/2008 by Dinesh Suryavanshi, Sometimes we ignore little details, which is a bad thing – because others can use our negligence against us.Most routers and ADSL modems come with a web interface that is used to control and configure the device. The administration panel is accessed with a web-browser, and it [...]
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Pay Attention and Read The biggest problem is that most people do not bother to read the fine print, which is where a lot of companies can get you. Taking the extra 30 seconds to read the fine print can save you hours and hundreds of dollars (which would be spent fixing the computer). First [...]
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Windows Internet Explorer 8 Beta 2 Windows Internet Explorer 8 is the next version of the world’s most popular browser that optimizes developer and end-user experiences to provide a window to the Web of online services. Moreover, Internet Explorer 8 offers new features and functionality that enable customers to reach beyond the page in more [...]
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Password Sniffer on Linux? Yep, we all need to be informed of passwords being sniffed out! I would not entail those details and cover specific issues of identifying your network securities as that would be large enough to be covered here and case to case basis. However, those two words are being mentioned here and [...]
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Each time a connection is made to sendmail, a greeting message is sent. By default, the greeting message contains current the following data: a. hostname, b. MTA agent name, c. sendmail version number d. and current date. RFC standards specifies that hostname greeting value should be a fully qualified domain name (FQDN) of the host, [...]
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Core routers and firewall gateways are usually comprised of basic and extended access control lists including rule sets that define local network security level and control access. They are commonly implemented on gateway routers restricting hosts, protocols and port access to other host or networks located after their default gateways. Basically, routers and default gateways [...]
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