403 Forbidden. Too long address?

Question

htaccess

Hello.
The second day trying to solve this problem.
There is an address that >255 characters.
Example: legendofkings.ru/fddfgdfgfddfgdfgfddfgdfgfddfddfgd...
Server gives 403 error.
Removing at least 1 letter, it will work.
After accepting the address, the server must redirect with this link to another domain.
I did it via htaccess:
RewriteEngine on
RewriteRule ^/?(.+) site.ru/$1 [R=301,L]
So, how to make this link work? Or maybe there is another way to redirect bypassing the 255 character limit?
The server is located at firstdedic.ru, OC: FreeBSD 8.3, panel: ISPmanager

Answer 1

Issue resolved.
Set up redirect via ISPmanager -> URL redirect

Answer 2

LimitRequestLine 4094
LimitRequestFieldSize 4094
Try to add in apache.conf / httpd.conf.