Eric @ EricBess WebHome

Wins do not arrogant, not to lose hungry, there is shock chest and face, such as mine Pinghu

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By N2H

Qmail Core System # For FreeBSD

1.DAEMONTOOLS

Install

cd / usr / ports / sysutils / daemontools
make clean & & make config
| | [X] MAN Install Gerrit Pape's manual pages | |
| | [X] SIGQ12 Add svc support for QUIT, USR1, and USR2 signals | |
| | [X] TESTS Run the test suite, fails on NFS-mounted workdir | |
make extract

mkdir / service
chmod 755 / service

echo 'svscan_enable = "YES"'>> / etc / rc.conf
echo 'svscan_servicedir = "/ service"'>> / etc / rc.conf

/ usr / local / etc / rc.d / svscan.sh start

Verify Daemontools Is Runing

sleep 5
ps ax | grep svscan

Add the "clear" service

cd / usr / local
mkdir clear
touch clear / down
cat> clear / run < #! / bin / sh
yes''| head -4000 | tr '\ n'
chmod + x clear / run
chmod aw clear / down
ln-s / usr / local / clear / service / clear

# When you want to clear the service errors, just run this:
svc-o / service / clear

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June 4th, 2008 Posted by eric | Qmail / Postfix / Exchange | no comments

ucspi-tcp set of principles and

Qmail developer dan Bernstein developed ucspi-tcp (Unix Client-Server Program Interface, using the TCP protocol) package to replace the inetd process. Ucspi format definition of a program to exchange data, reflecting the three main advantages:

1, ucspi port independent of the underlying communications medium.
2, ucspi allow shell scripts to use the Internet network.
3, ucspi procedures for the establishment of a unix environment variables, these variables can be defined procedures and use of information networks.

Ucspi-tcp known as the tool to use in the process of establishing a connection between the application. There are two types of ucspi tool --- client tool (tcpclient) and the server tool (tcpserver).
Ucspi-tcp the tcpserver procedure is to replace the unix process inetd, the following advantages:

1, he was able to come from server-side all the input and output are recorded to a file.
2, he can provide access control features, or to refuse to allow connections from the client, the rules of control on a hash rule base (cdb) it's very easy to deal with thousands of rules.
3, which includes restrictions on concurrent (default 40), tcpserver slow to reduce the volume of complicated so that the unix systems to prevent overload.

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December 5th, 2007 Posted by eric | Qmail / Postfix / Exchange | no comments

Eric's mail system solutions - anti-anti-virus technology features

the history of spam

April 12, 1994 has not recorded Net.infamy, but perhaps should not do so because we know that for the first time that day there have been spam.
Lawrence in April 12, 1994 to start running for a Perl script code, the code can be a large number of BBS on the release of his wife, Martha, and co-operation of the Canter & Siegel law firm for legal services to attract business advertising.
At that time, the reaction was fierce, it was also one of the most obvious signal: free Internet marketing can not be tolerated, there are thousands of Lawrence received the advertisement published users expressed dissatisfaction with a new large-scale Internet marketing business showed a prototype, and was known as the "Spam" (non-information request).
Web users at the beginning of the use of "Spam" offensive description of the network after 10 years of marketing activities, such as junk e-mail summary of the flood embankment as out of control, but the issue of anger has been replaced by default. As a result there is no effective solution, many people think like that, "the Internet era," whether the term should be "Spam times," replaced.

Eric's mail system solutions - a high level of anti-anti-virus technology features

In the wild hacker, virus network in the world, e-mail security is the concern of all things, because people rely on e-mail has been replaced by fax, mail or phone communication behavior. However, the recent pattern of transmission of HIV, the virus spread through e-mail, quick and hard, so that users are very hard sometimes users often unknowingly spread the virus again when the accomplice, but think the more speed Internet access To the more slowly, from the mail server anti-virus software installed on the first opportunity to stop the virus, to solve this problem, to reduce from hackers or virus attacks.
The system used by the anti-virus system is the Clam AntiVirus, which currently can detect more than 40,000 kinds of viruses, worms, Trojans and update the database. We are familiar with it norton, macfee not, it stressed that the open-source program, authorized for free, so there is a world expert in the world that can improve its efforts at the same time there is a group around the world and the crazy virus expert researchers, 24 hours Update and maintain the virus database, any person who finds a suspicious virus can also get in touch with them immediately to update virus signatures, in a very short period of time, the use of the Internet's ClamAV mail server on the completion of the latest protective action.

Leading spam filtering technology

Unsolicited e-mail in various ways into our mailbox - the marketing of products, fraud, political or religious criticism, as well as the vector can not be classified in the form of strange. Some people receive every day, 1-200 unsolicited e-mail (or more), which is not uncommon.

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July 7th, 2007 Posted by eric | Qmail / Postfix / Exchange | no comments

Eric's mail system solutions - the promotion of commercial information

Today, two years ago to restore a hard disk, recalled the efforts of the past, there are still many things to be recorded. Here I compiled some of the design of qmail mail system, there are a number of successful commercial application, this also has a Web site bizeasy.cn.
The system provides the main WebMAIL, easy-to-use graphical management and monitoring platform for e-mail at the same time to provide real-time option to upgrade anti-virus e-mail and multi-level workers and intelligent anti-spam engine. Here is some information related to the promotion of business, and a full range of free technical information will be uploaded to organize this forum for those in need of reading.

Eric's China Petroleum and Chemical Corporation e-mail program

Eric's China Petroleum and Chemical Corporation e-mail program (900.8 KiB, 2 hits)
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This is the anti-spam module (killspam) promotion of information

KILLSAPM (75.9 KiB, 1 hits)
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E-mail a Web site to promote information technology

Smart learning a new century, the power of -18 Bayes Theorem (87.6 KiB, 1 hits)
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July 6th, 2007 Posted by eric | Qmail / Postfix / Exchange | no comments