i wanted to know if the mod dual welding is allowed on the dalek mod public server and what mods are allowed and what mods aren't

I don't think you would even be able to join with the dual wield mod

These are the mods that I have installed that the staff havent had any issues with thus far

• Optifine
• Journey Map
• Not enough Items
• World edit
• World edit cui
• Replay Mod

 You can have any mods you like connecting to the server, since the server doesn't have your mods installed it really doesn't effect anything but what you have. Just a warning grabbing any items from mods the server doesn't have installed may crash your game.

As for mini-maps, optimization mods or anything client sided like that, anything is fine, be warned optifine does cause some rendering issues with certain things in mods.

 ok thanks

 world edit mod doesnt work and if it does your pretty much stealing from soemthing you have to donate for just sayin 

list of mods alloweds? 

 Read my forum post, no list needed.

 I use it in singleplayer but I connect to the server with it still installed 

 What is Replay mod?

It wouldn't work. As it is only client side. Mods will only work if they are installed on the server as well. The only exceptions being mods which are only required to run on the client. Such as minimaps and performance mods like Optifine stuff like that.

replay mod is very useful for catching hackers and such XD

(Updates) Mods that arnt allowed:
Fly mods (Won't be naming the commonly used one: A Fly hack that defaults use
Schematica Printing Mode: Any botting mods are not allowed on the server.