e mail virus protection handbook phần 3 ppt

... 150 Availability of VirusScan 151 Updates of Virus Definition Files 152 Installation of VirusScan 5 152 Configuration of VirusScan 5 156 Norton AntiVirus 2000 163 Availability of Norton AntiVirus 2000 ... Perhaps the most famous e-mail attack, the Melissa virus was released in February of 1999. Melissa was the first popularly known e-mail virus that spread from user to user via e-ma...

Ngày tải lên: 26/10/2013, 23:15

... these tech- nologies is dependent upon the e -mail client/server relationship. E -mail has become the “telephone” of Internet-based economy; without e -mail, a business today is as stranded as a ... facts alone, you can see that e -mail has become critical in the global economy. Unfortunately, now that businesses have become reliant upon e -mail servers, it is possible for e -mail softwa...

Ngày tải lên: 13/12/2013, 05:15

... arguments. ANSI/ISO C++ Professional Programmer's Handbook - Chapter 3 - Operator Overloading file:///D|/Cool Stuff/old/ftp/1/1/ch 03/ ch 03. htm (14 von 15) [12.05.2000 14:45:47] ANSI/ISO C++ Professional ... [] if ( p == 0) return; ANSI/ISO C++ Professional Programmer's Handbook - Chapter 3 - Operator Overloading file:///D|/Cool Stuff/old/ftp/1/1/...

Ngày tải lên: 05/08/2014, 10:20

... in Fig. 4 .30 . 4 .3. 3 Surge Surge flow has been defined as peak head. Below the surge point, head decreases with a decrease in flow (Figs. 4.24 and 4 .30 ). Surge is especially damaging to a compressor ... violin string is supplied through the bow by the musician’s arm. CENTRIFUGAL COMPRESSORS—CONSTRUCTION AND TESTING 4 .33 FIGURE 4. 43 An inverted pendulum. The ‘‘negative spring’’ force...

Ngày tải lên: 08/08/2014, 12:22

... works together, even though the public key can be distributed freely. You can safely give the public key to the most experienced hacker in the world. This is because even though these keys are related, ... a recipient before the messages are encrypted. Whenever you exchange public keys, you are said to be establishing a trust relationship between you and your friend. NOTE Dedicated servers e...

Ngày tải lên: 14/08/2014, 04:21

... when received. These settings are contained within the PGP preferences and not the e- mail client preferences. Figure 3. 33 shows the e- mail options in the PGP Preferences window. The option Use PGP/MIME ... the decrypted message contents are displayed in the PGP viewer. When an encrypted message is opened in the secure viewer by Eudora, the entire contents of the message, message he...

Ngày tải lên: 14/08/2014, 04:21

... Default.vsc McAfee ScreenScan HKEY-1\ScreenScan McAfee E- mail Scan for HKEY-2 \McAfee VirusScan\ Exchange client Exchange Scan McAfee VirusScan Central HKEY-2 \McAfee VirusScan\ VirusScan 2000 Table 5.3 Registry ... attachments, and checks for possible viruses. If no virus is detected, the complete message is forwarded to your e- mail client. After all messages are transferred, the...

Ngày tải lên: 14/08/2014, 04:21

... machine completely open for someone else if there is a permanent connection to the Internet. As mentioned earlier, if you have the latest versions of the software, these types of controls will be ... ActiveX VBScript Eudora Yes Yes Yes Yes (No by default) Netscape Yes Yes Not without Not without Messenger a plug-in a plug-in Outlook Yes Yes Yes Yes Outlook Express Yes Yes Yes Yes Even greater...

Ngày tải lên: 14/08/2014, 04:21

... the middle, not the mixed red/white/green that we already saw. The red means that at least one of the rights has been unchecked. For the DATA directory, we can see that Execute and Delete have ... logging feature, BlackICE Defender supports an Evidence Log (see Figure 7.12). This is on by default. The key difference is that the Evidence Log contains only packets related to identified attacks....

Ngày tải lên: 14/08/2014, 04:21

... Server—Services to Disable When a new operating system is introduced, there are many uncertainties because the OS has not been implemented in every production environ- ment. There are many security ... called hardening the server. The hardening process focuses on the operating system, and is important regardless of the services offered by the server. The steps will vary slightly between servi...

Ngày tải lên: 14/08/2014, 04:21

... enterprise. A content-filtering tool filters all e- mail at the server level, before it reaches the intended recipient. E- mail can be filtered based on sender, subject, excessive file size, prohibited con- tent, ... some of the differences between implementation schemes. The next step is to translate these concepts into server management guidelines that result in the reliable and secure op...

Ngày tải lên: 14/08/2014, 04:21

... tolerate questionable mate- rial via e- mail, they were able to detect such e- mails being sent through their corporate e- mail system, and were able to dismiss employees, based on the content-filtering ... both levels secured will help to alleviate the threat of e- mail attack. Attachment Size Most Word documents and Excel spreadsheets exchanged between end- users as e- mail attac...

Ngày tải lên: 14/08/2014, 04:21

... 350 code, execution, 222 E Early detection, 343–347 eBay, 431 ECL. See Execution Control List Electronic mail (E- mail) . See BlackICE Defender 2.1; eSafe version 2.2; HyperText Markup Language; Junk ... 257 Database Exchange (DBX), 154, 158 DBX. See Database Exchange DDE. See Dynamic Data Exchange DDoS. See Distributed Denial of Service Debugging. See Sendmail DecNet, 369 Decrypted dige...

Ngày tải lên: 14/08/2014, 04:21