Archive for the ‘PC’ Category

ARP resolves MAC address from IP address

A PC in an Ethernet network can communicate with another PC, if only it knows the Ethernet address (MAC address) of that PC. Address Resolution Protocol (ARP) is a network protocol uses to translate a PC’s IP address to physical (hardware) address. From OSI model point of view, ARP belongs to the OSI data link [...]

Workgroup vs. Domain in Windows 2003 environment

There are two modes of operation in Windows 2003 environment. Basically a computer can work as workgroup computer or domain computer. Most home and small business environments will be Workgroup, and most enterprise businesses will run in domain mode.
Basically when you install Windows 2003 server, by default it is a workgroup computer.

Workgroup environment is [...]

How to add a computer to a Windows Server 2003 domain

Here is a simple howto on adding windows 2003 computer to a Windows Server 2003 domain.

This should be valid for other version of windows client computers too.
Before performing the following steps, make sure that your computer can reach the domain controller through the network. You may use ping to test if your computer can [...]

CamStudio

CamStudio is a software which I use to record all screen activity on my computer for use in software demonstrations and presentations.
Before discovering this freeware, I use Jing most of the time in recording video of what I do.

However, one disadvantage with Jing is it only generate Streaming Flash video (SWF) file. As [...]

Do not enable unnecessary services on your PC or server

Whether it is a Windows PC, Cisco router, switches, Linux machine or network enable device, it is recommended to stop unnecessary services that are run by default. Every running, but unused, service on your system maybe a possible means of attack. Users may not even be aware that many of these services are running.
It is [...]

How to find port number

In our previous post on How to test if a port is open on a server or PC, we have indicated that in TCP/IP networking,  port 25 is used in SMTP (Simple Mail Transfer Protocol), port 110 is for POP3 (Post Office Protocol) and so on. Anyway, where can a user find the port [...]

How to access web page without Internet Explorer, Firefox or Safari

In networking, sometime while performing network trouble shooting, you may like to quickly test if the connection to a website is available. Without using a web browser, you also can use the telnet command that is available in most of the login terminal like Command prompt, unix login shell or Cisco login terminal.

To test a [...]

New Site for Internet PC Networking Release!

After maintaining few pages related to computer network, Cisco Systems and networking, I have decided to consolidate all these sites into this new domain — Internet PC Networking which will focus on all issues related to these areas. Hope that by having this consolidation, I can have more time to focus on the contents in [...]

How to enable Chinese in wordpress

The best solution to the character encoding problem in WordPress is to convert the charset or database and collation to UTF-8 or Unicode. UTF-8 Database Converter can be used to overcome this problem.

Download UTF-8 Database Converter,

Open the file `wp-config.php` set `DB_CHARSET` to `utf8` and leave `DB_COLLATE` with nothing. (Just for WordPress 2.2.x)
Upload `UTF8_DB_Converter.php` to the [...]

Recommended Freeware List

The new recommended freeware list is now hosted at:
The 88 Best Freeware
Here are some of the freewares I used before.

GIMP
Quick Media Converter
Picasa
CamStudio