gshop security

i'm not sure if this is issue with anyone but i have my concerns about it the server i plan to make is not gonna be get anything you want mega xp server. prices in shop are going to be fair but going to be just 1 gold like every 145 release i have seen for client ... but my concern if i edit my prices to server and the client will they be able to replace my ghsop data with one of there and be able to buy things lower then the price set? will the gshopsev prevent that from happening? i use to run another type of server had similar issue had concerns about people was using modified clients to change there client skills and server allow them to happen will the gshop or client be compromised by someone seeking a quick way to take advantage of the server?

Uhm, everything relevant in PW is serversided.

that was a concern due to knightonline we had issues with skills being modified just wanted to be sure that this couldn't happen to pw

Whatever mmo relies on the client's data for important decissions deserves to fail.

perhaps but back in the day is was a very popular game the pk system was like no other but it never progressed any further and the development got shut down in archive . but learning new types of game severs is a passion for me for example this server running of linux so for me i got to study the inner workings of the game server and linux it's quite enjoyable to learn things like this even for my age , just recently decided the study php more then i use to . even though my server will not be up till i'm satisfied with every detail the pleasure of learning it succeeds everything else