By Truong Anh Tuan, on March 24th, 2008% Slamming is a popular spammer tactic in which the spammer quickly fires off SMTP messages without waiting for responses from the receiving server. A poorly behaved MTA will then accept traffic from the spammer, instead of rejecting it as it should. But even well-behaved MTAs are affected because of the sheer volume of traffic with . . . → Read More: Sendmail’s Greet_Pause
By Truong Anh Tuan, on March 22nd, 2008% When I read forums, sometimes I see people asking for advice on which CMS would be adapted for their particular project, and often there are replies of what looks like Joomla fanatics who answer without any argument that Joomla is the best CMS.
I can’t stand it because I know it’s wrong, but then I’m . . . → Read More: Is Drupal the best CMS or is it Joomla?
By Truong Anh Tuan, on March 10th, 2008% 26 March: A global day for document liberation Sign up your DFD team today!
The Document Freedom Day (DFD) is a global day for Document Liberation with grassroots action for promotion of Free Document Formats and Open Standards in general. The DFD was initiated and is supported by a group of organisations and companies, . . . → Read More: Document Freedom Day DFD
By Truong Anh Tuan, on February 19th, 2008% WinMerge is an Open Source visual text file differencing and merging tool for Win32 platforms. It is highly useful for determining what has changed between project versions, and then merging changes between versions. Key Features:
Visual differencing and merging of text files Flexible editor with syntax highlighting, line numbers and word-wrap Handles DOS, UNIX and . . . → Read More: WinMerge – powerful FOSS visual tool for files/folders differencing and merging
By Truong Anh Tuan, on February 18th, 2008% Sunnyvale, Calif. – February 5, 2008 – Zimbra, a Yahoo! (Nasdaq: YHOO) company, and the leader in open source, next-generation e-mail, today announced the availability of Zimbra Collaboration Suite (ZCS) 5.0. ZCS 5.0 includes hundreds of enhancements that expand Zimbra’s access across desktops and devices while setting the standard for Web-based productivity in a business . . . → Read More: New Features for Zimbra Collaboration Suite 5.0
By Truong Anh Tuan, on February 12th, 2008% Basics 1. Windows Vista OS to Ubuntu OS 2. Internet Explorer Browser to Firefox Browser
Office Suites 3. Microsoft Office to OpenOffice 4. Mactopia to NeoOffice
Office Tools 5. MathWorks MATLAB to Scilab 6. Microsoft Access to Kexi 7. Microsoft Word to OpenOffice Writer 8. Microsoft Excel to OpenOffice Calc 9. Microsoft Visio to Dia
. . . → Read More: Top 50 Proprietary Software and their Open Source alternatives
By Truong Anh Tuan, on February 5th, 2008% Enterprise IT” vendors are in the midst of an identity crisis, and Linux is to blame. Want proof? Just look at some recent news announcements: Not only is the erstwhile uber-proprietary Sun Microsystems selling Intel- and AMD-based servers, it has also snapped up open source giants like MySQL. That’s quite a shift from a year . . . → Read More: Enterprise IT ain’t what it used to be
By Truong Anh Tuan, on October 16th, 2007% I am using SpamAssassin 3.1.x on Linux. Now, all mails with spam score over five (5) are marked as spams (so simple configuration). Further more, I would like to remove permanently all mails with score over ten (10).
Here is content of /etc/procmailrc to do that:
DROPPRIVS=yes MAX_SCORE=10.00 MIN_SCORE=5.00 :0fw | /usr/bin/spamc :0 * ^X-Spam-Status:.*score=\/[0-9\.]+ . . . → Read More: Removing mails spam-scored over 10
By Truong Anh Tuan, on September 6th, 2007% I had a requirement to restrict who could log into a ftp server, to automatically create their home directory – but in a different directory thats set in LDAP – with the correct permissions, and then to chroot them into here. ProFTPd with mod_ldap happened to be the answer, although it took a little bit . . . → Read More: ProFTPd Automated Home Dir Creation
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