Bloacking all external access and allwoing few websites and few external ips

[maheshanw]

Hi
I am very new to linux. I need some help from the experts to get rid of this issue.
At my office I use Linux iptables.I want to add rules to block all the external access (All the services http,ftp,etc) to the internal users and allow few external web sites and few external Ips for official use only.

Thanks
Chaminda  

[aktiwari4u]

i think you just need to create acl in according to your requirement .iptable have been properly discribed in the tutorial section of this forun.