It depends on what you are making it for, from what I see as your category, you should go to the website for it, and look in the support question or just contact them. (the contact link should be at the bottom right of the website).
Open counter strike-->Find server--->favourite-->and then you will see add server click it---> add IP
Go on multiplayer and click "add server"In return please check out our channelyoutube.com/neonchargegaming
Click on 'multiplayer'. Then click add server, and enter in the IP of a server. The server name does not matter. Click on your server to join it.
Join a server with people in it, or just use the console command "bot_add" to add a bot to your own server.
You need a server using Bukkit, and there are multiple plugins for it.
Place the plugin into the plugin folder and restart the server.
No you cant. Not on a single server. But you can by hacking the game.
You have to download an add-on for the dedicated server.
You can add friends on any server with a new Minecraft plugin called FriendsForMinecraft available at the related links below.
To join or "use" a minecraft server you click on Multiplayer (Assuming that you've purchased a premium account). Then click on "Add Server" and enter a name for the server you're adding (This does not matter what you name it, this will not affect if you can join the server or not.) then copy the I.P. address and paste it into the box below the name. Hit add server, then double click to join it.
Click the multiplayer button, then click add server, type in the server address and what you want to name the server, then click ok, and click on the server that pops up.
Add an additional network card to the server.