I always get the complain from my user said that they cannot open the e-mail attachment in winmail.dat files. When i see the attachment winmail.dat, i already that email message is in RTF format and send by Outlook mail client. But most of my user is Thunderbird user, for sure they cannot view that email attachment.

To solve the problem, i install a software called Winmail.dat Reader. This software allow you read, view, open, convert and save the files on winmail.dat email attachments.

Just Click HERE to download it. After download, just double click winmail-reader-setup.exe to install it.

How to use Winmail.dat Reader?

• Just double click Winmail.dat Reader icon  to start the program.

• Just click on Open Winmail.dat button to open your Winmail.dat attachment

• You will the content of Winmail.dat attachment, you can choose to view or save the content of the attachment.

Besides Winmail.dat Reader, you can upload your winmail.dat attachment to online Winmail.dat viewer to view the content of your Winmail.dat via online. One of the online viewer for winmail.dat email attachments that i always use is http://www.winmaildat.com

If you have others software to view Winmail.dat, please share with me.

When you try to send and receive e-mail on Microsoft Outlook, you may receive following error message:

These error messages may occur if Microsoft Outlook or Microsoft Outlook Express cannot establish a connection with your e-mail server. These error messages are frequently caused by one of the following:

1. Wrong configuration of email client
2. Your ISP blocks port 25
3. DNS problem at your ISP

When you facing above problem, you can try to check your email client setting or disable your firewall setting to solve this problem. In my case, I just allow POP3 with SSL and change the pop3 port no 25 to 995. After change, my Microsoft Outlook work fine.

If you facing the same problem and have others solution, please leave your comment and share with me.

My Mac OS X 10.6 browsing to Samba Servers is extremely slow, navigating from one directory level to the next can take a minute or longer. I tried to play with settings in my SMB configuration. Finally i found a way to solve it.

Below are the steps that i did:-

• Launch the Terminal (Applications/Utilities/Terminal).
• Enter sudo nano /etc/smb.conf to amend the smb.conf file. (Note: Please make sure you have admin right to your machine)
• You will be prompted for a password, utilize the password for your admin account.
• Scroll down to the following line on your smb.conf and change the yes to no

use spnego = no

stream support = no

ea support = no

darwin_streams:brlm = no

• Save the file and quit
• Restart your Mac.

After restart my Mac, i tried to browsing samba folder, i realize the speed of browsing improve a lot. If you have any others alternative way to solve this problem, please leave your comment here.

In order to install dotnetnuke 5.5.1 in plesk, you will need to change the asp.net setting in plesk panel to 2.0 version. Besides that, make sure your computer is having microsoft.net framework 3.5 SP1. Please make you download SP1 version because it will not run the installation if it is .net 3.5.

By default, most Linux distributions do not enable password aging. This means passwords do not expire and is it possible for a user to have the same password indefinitely. This situation is not secure. For security reasons, it is advisable to require users to change their passwords periodically.

Password aging is a mechanism that allows the system to enforce a certain lifetime for passwords. The chage command is used to modify password aging.

# chage [options] username

Here are the common options used with the chage command:

Below are few example on how to use chage command:-

a) Displays the help information

Just type chage command

[root@myopensos ~]# chage
Usage: chage [options] user

Options:
-d, –lastday LAST_DAY    set last password change to LAST_DAY
-E, –expiredate EXPIRE_DATE    set account expiration date to EXPIRE_DATE
-h, –help            display this help message and exit
-I, –inactive INACTIVE    set password inactive after expiration
to INACTIVE
-l, –list            show account aging information
-m, –mindays MIN_DAYS    set minimum number of days before password
change to MIN_DAYS
-M, –maxdays MAX_DAYS    set maximim number of days before password
change to MAX_DAYS
-W, –warndays WARN_DAYS    set expiration warning days to WARN_DAYS

List the password and its related details for an user

b) Show account aging information

Just type chage -l username or chage –list username

[root@myopensos ~]# chage -l techkaki
Last password change                    : Aug 19, 2010
Password expires                    : never
Password inactive                    : never
Account expires                        : never
Minimum number of days between password change        : 0
Maximum number of days between password change        : 99999
Number of days of warning before password expires    : 7

c) Set Password Expiry Date

Example, user techkaki password is set to expire 3 days from the last password change.

Note: both “Password expires” and “Maximum number of days between password change” entries as shown below.

[root@myopensos ~]# chage -M 3 techkaki
[root@myopensos ~]# chage -l techkaki
Last password change                    : Aug 19, 2010
Password expires                    : Aug 22, 2010
Password inactive                    : never
Account expires                        : never
Minimum number of days between password change        : 0
Maximum number of days between password change        : 3
Number of days of warning before password expires    : 7

d) To disable password aging for an user account

To turn off the password expiration for an user account, set the following:

• -m 0 will set the minimum number of days between password change to 0
• -M 99999 will set the maximum number of days between password change to 99999
• -I -1 (number minus one) will set the “Password inactive” to never
• -E -1 (number minus one) will set “Account expires” to never.

[root@myopensos ~]# chage -m 0 -M 99999 -I -1 techkaki
[root@myopensos ~]# chage –list techkaki
Last password change                    : Aug 19, 2010
Password expires                    : never
Password inactive                    : never
Account expires                        : never
Minimum number of days between password change        : 0
Maximum number of days between password change        : 99999
Number of days of warning before password expires    : 7

e) To set Account Expiry Date for an user

With option -E, You can set the account expiry date

[root@myopensos ~]# chage -E “2010-08-20″ techkaki
[root@myopensos ~]# chage -l techkaki
Last password change                    : Aug 19, 2010
Password expires                    : never
Password inactive                    : never
Account expires                        : Aug 20, 2010
Minimum number of days between password change        : 0
Maximum number of days between password change        : 99999
Number of days of warning before password expires    : 7

If you want to know more on how to use chage command, please type man chage to view the manual.

I downloaded an ebook from internet. The ebook in .chm extension. I can’t read it in my linux machine.

So, i just install a software called xCHM to read .chm file.  xCHM can show the content tree if one is available, print pages, change font face and size, remember bookmarks, display a searchable index, and search for words in the current page and the whole book.

How to install it? Just follow the following steps:-

Fedora/Centos

a) Login as root user

su -

b) Type the following command to install it

yum install -y xchm

After that, you try to double click the .chm file, you should able to open it with xchm program.

phpMyAdmin is an open source tool written in PHP intended to handle the administration of MySQL over the World Wide Web. It can perform various tasks such as creating, modifying or deleting databases, tables, fields or rows; executing SQL statements; or managing users and permissions. (Info from http://www.phpmyadmin.net)

How to install phpmyadmin? Before you install phpmyadmin, you need to install your LAMP 1st. Once you install, just follow below steps:-

1. $ su -
2. # cd /var/www/html
3. # wget http://downloads.sourceforge.net/project/phpmyadmin/phpMyAdmin/3.3.0-rc1/phpMyAdmin-3.3.0-rc1-all-languages.zip?use_mirror=nchc
4. # unzip phpMyAdmin-3.3.0-rc1-all-languages.zip
5. # mv phpMyAdmin-3* phpmyadmin
6. # cd phpmyadmin
7. # cp config.sample.inc.php config.inc.php
8. # vi config.inc.php
   :
   $cfg['Servers'][$i]['auth_type'] = ‘http‘; # default is cookies
9. Restart Apache
   # service httpd restart

Run your phpmyadmin by following link:

http://your.domain.com/phpmyadmin/ or http://ipaddress/phpmyadmin/

phpmyadmin fail to start?

When you type above link, your phpmyadmin fail to start and show following error message:

PHP 5.2+ is required

To solve this issue, you need to upgrade your PHP 5.1 to PHP 5.2. But, on CentOS is no simple ‘yum’ upgrades to update your PHP 5.1.6 to PHP 5.2.6. you need to add Repository to your yum

Just follow below steps:

nano -w /etc/yum.repos.d/utterramblings.repo
... and then paste the following into the editor:
[utterramblings]
name=Jason's Utter Ramblings Repo
baseurl=http://www.jasonlitka.com/media/EL$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka

After that, just save it.

Now you should able to upgrade your PHP.

Quick Look is a quick preview feature which was introduced in Mac OS X 10.5 Leopard. Quick look allow us to preview the files, multiple page documents and video with opening them. You just have to select the files in the Finder and press the Space bar to preview it.

Today, i will going to show you a trick on Quick look. This trick called X-Ray Folder. This feature is hidden by default. We need to enable it through Terminal. Normally when we Quick Look on folder, it will show the regular folder icon. But if you enable X-Ray Folder feature,  the folder icon will be semi-transparent, with previews of the folder’s contents visible in the Quick Look window.

Let see the screen shoot without enable X-Ray Folder

Screen shoot with enable X-Ray Folder

How to enable X-Ray Folder

1st – Quit the Finder via Activity Monitor

After that, launch your Terminal and enter this command:

defaults write com.apple.finder QLEnableXRayFolders 1

Done

How to turn off X-Ray Folder

Just repeat above steps and enter the same command with change 1 to 0 in your Terminal:

defaults write com.apple.finder QLEnableXRayFolders 0

Microsoft have launch Windows 7 Release Candidate (RC) testing. The purpose of this release is to let user trying out pre-release software
click here to download Microsoft Windows 7

You will get a product key by fill up the form on Microsoft Windows 7 web site.

I think Apple Mail user might experience problem in downloading email messages from POP server even the mail account setting is correct. The only problem is your email account was offline. Your apple mail will show like screen as show as below

Apple Mail must be in online mode to access the mail server. If you’ve made changes to your folders in Apple Mail, they will be applied when you use online mode. Likewise, if you have messages queued for delivery in your Outbox, they will be sent when you use online mode.

To use online mode in Apple Mail, do the following:

1. Log in to Apple Mail. Make sure you have an active Internet connection.

2. Right click on the mailbox

3. Click on Take  “POP Account” Online

4. After that, Click on Get Mail button. Now you should able to receive email from your mail server.