Dear All
Can you please do me favor and let me know why I cannot get HTTP service from my Linux server ? Please be informed that I have installed Red Hat 7.2 on my server and the Apache server is running on it . I can ping my server from my client side but my client cannot get HTTP service when trying as the followings :
"http://172.18.128.1/"
I checked for the http instances on my server , as the attached captured screen shows it .Can you please let me know what is my problem ?
Thank you in advance

Attached Thumbnails

 

So it looks to me as though you are trying to access Apache server (on Virtualbox) from your WindowsXP client, if I misundertsand - please let us know.

Having not used Virtualbox for anything, I'd speculate that the firewall on your RedHat installation is not permitting access from the 172.18.*.* network.

Not knowing the specifics of your installation, I don't know the best way to tell you to troubleshoot that...

-If you don't have GUI access on the RedHat install, install a text based browser like elinks or Lynx to try to browse to 172.18.128.1...
-I don't remember if the telnet client is installed by default on RedHat, but you can test using telnet in both linux and Windows - adapting the instructions here.