To be honest i hate how client mods can be used in servers because i have a survival server and they use xray and all of that. Instead of banning them i just wanted to know is there any way that i can make my server client mod free?
Not sure about all mods, but some can block them. CJB Mods+CFBanner+AntiXRay+NoCheat. Great combination. You can also install FoundDiamonds and have it announce and/or log all ores, to catch an 'x-rayer'
this will make it client mod restricted as depending on the settings certain things will be heavily restricted