atutility.com

I use Remote Desktop to connect some dell servers, and the default background image is slooooow. So after a few  minutes research, here's the solution to remove it.

This is a learning track entry.
The author is Mark Long, and you can learn more about the product here

Select a random row with mysql:

select column_name from table_name order by rand() limit 1

Select a random row with SQL Server

select top 1 column_name from table_name order by newid()

You might want to read How to Program Google Android
In this article, Reto introduced an interesting idea: Where Are My Friends? which used the GPS, Maps and contacts database.
I'm thinking a similar but not duplicate idea: Looking for friends over phone.
People that willing to looking for friends will post from phone with the following information
1. City/Zip code, Area or District
2. Interest
3. Whom you are looking for? with some pre-defined search conditions.

Telnet is not installed by default. Here's the step to install on Windows Vista
1. Open control panel
2. Open Programs and Features
3. On the left panel, select "Turn Windows Features on or off"
4. In the tree, select "Telnet Client", and click OK

Telnet is the basic tool for a network administrator.

I'm developing the universal converter on a new platform: Android
The 1st screen will be a ListActivity, if it's an array of object, android.widget.ArrayAdapter would be very helpful.
Here's a sample:

 private Vector<Type> types;
 public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        init();
        setListAdapter(new ArrayAdapter<Type>(this,

verveearth.com make blogs appear on the global map, which gives you another way of surfing blogs. You can find out how many blogs near you by click your city.
Although I use 90% English for blogging, I'm happy to appear on map of Beijing, China. I'm a native Chinese and will stay at Beijing for a long time.

Happy blogging.

modify file /etc/conf.d/net
change the line: iface_eth0="10.1.1.60 broadcast 10.1.1.255 netmask 255.255.255.0"
after save, run /etc/init.d/net.eth0 restart
ping the new ip address to make sure it works.

When open a virtual machine created with vmware server 1.0 with vmware workstation 6.0, which is running debian 4.0r0,
the eth0 won't start by reporting the following error:

linuxvm1:/etc/network# ifup eth0
SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
eth0: ERROR while getting interface flags: No such device
Failed to bring up eth0.

The solution:
1. run ifconfig -a

1. apt-get install atftpd atftp
2. mkdir /tftpboot
3. chmod 777 /tftpboot
4. /etc/init.d/atftpd start

notice:
1. I prefer it start as a standalone server instead requires inetd
2. if atftpd isn't start, you'll need to check if it set USE_INETD=true in 2 files: /etc/default/atftpd and /etc/init.d/atftpd
just commend out that 2 line and it shall able to start.
3. the log file is /var/log/syslog