Hi friends, sometimes you may come across core files which gets generated within your hosting account and it’s will easily used up disk space. But you may don’t know where it’s from or why the core files been generated. Usually, this will lead people misapprehension as his hosting account been hacked or virus infected. =)

A core file is actually created when a program terminates unexpectedly, due to a bug, or a violation of the operating system’s or hardware’s protection mechanisms. The operating system kills the program and creates a core file that programmers can use to figure out what went wrong. It contains a detailed description of the state that the program was in when it died.

However, when core file is generating, it will take at least 100MB disk space, which is space consuming, as well as utilizing disk performance, directly affect server performance. You can get rid off those core files by editing the httpd start up file on the server end.

1. root@server [~]# vi /etc/init.d/httpd

2. Search for ulimit lines as below:
ulimit -n 1024
ulimit -n 4096
ulimit -n 8192
ulimit -n 16384

3. You need to add ulimit -c 0 at the end and will look like this.
ulimit -n 1024
ulimit -n 4096
ulimit -n 8192
ulimit -n 16384
ulimit -c 0

4. Save changes and quit.

5. root@server [~]#service httpd restart

Have a try!! =)

THE TWILIGHT SAGA: ECLIPSE (Recommended new movie )

Movie Descriptions :

In THE TWILIGHT SAGA: ECLIPSE, Bella once again finds herself surrounded by danger as Seattle is ravaged by a string of mysterious killings and a malicious vampire continues her quest for revenge. In the midst of it all, she is forced to choose between Edward and Jacob — knowing that her decision has the potential to ignite the struggle between vampire and werewolf. With her graduation quickly approaching, Bella is confronted with the most important decision of her life.

Hi friends, today will talk about how to configure your computer or server running as Web Server to host your Intranet, Extranet or web sites. Internet Information Services (IIS 6) is a powerful platform for hosting.  By default, Microsoft Window’s, IIS  is not installed by default on Windows Server 2003. So I will show you guys step-by-step to setup IIS in a Windows Server 2003 environment.

1. Click Start, point to Control Panel, and then click Add or Remove Programs.

2. Click Add/Remove Windows Components.

3. In the Windows Components list, select or highlight “Application Server” and press the “Details” button. The screen below will be displayed as below:

Read more »

The Address Resolution Protocol, or ARP, is a critical protocol in your network infrastructure. What is ARP? It’s an Internet protocol used to map an IP address to a MAC Address. Usually ARP just “works” and you don’t have to do anything about it. However, there are reasons that you may need to make ARP or configure ARP on your router.

Here is how you make a static ARP entry in the Cisco IOS:

In global configuration mode, use:

arp {ip-address | vrf vrf-name} hardware-address encap-type [interface-type]

Here is an example:

arp  10.28.6.14 0700.0800.1834 arpa

To remove an ARP entry, use the no arp command.

To show arp entries, just type show arp and you will see results like this:

Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  10.4.2.4               10   0000.0c07.ac14  ARPA   FastEthernet0/0
Internet  10.3.3.3               10   0000.0c07.ac14  ARPA   FastEthernet0/0
Internet  10.3.2.7               10   0000.0c07.ac14  ARPA   FastEthernet0/0
Internet  10.4.2.1               10   0007.b400.1401  ARPA   FastEthernet0/0
Internet  10.3.3.7               10   0000.0c07.ac14  ARPA   FastEthernet0/0

As you can see, the IP addresses are mapped to the hardware/MAC addresses on Ethernet interfaces. Read more »

Hi friends, this post will discuss how to add/put an IP address on an Ethernet Interface. Actually there are very easy few steps to accomplish this task. Let’s walk through these steps together.

**Remember that you will always need to access the global configuration mode to add interfaces.

1. Connect to your router. You would do this with the enable command.
router> enable <enter>

2. Access the configuration to use the terminal.
router# config t <enter>                 (Note: t for terminal)

Notice that the > sign changes to # sign (router configuration).

3. Choose and configure the Ethernet interface e0(or e0/0, s0, s0/0)
router(config)# interface Ethernet 0/0 <enter>

Notice that the prompt now changes to (config-if)# indicating that we are now in configuration interface mode.

4. Type the IP address and subnet for the Ethernet interface.
router(config-if)# ip address 192.168.1.12 255.255.255.0 <enter>

5. Remember to enabled the Ethernet Interface.
router(config-if)# no shutdown <enter>

Pressing Ctrl/Z saves your changes and gets you back to the enable prompt. Of course you will want to verify your configuration. Type the following command at the enable prompt:
router# show interface Ethernet 0/0 <enter>

6. Lastly and also the important part, save your configuration before exit/log out.
router# copy runn start <enter>