Vengeance is garbage. I
implore you not to waste your time on that stock-MaNGOS server.
I remember wasting a few a days of my time back when this server launched a year or two ago. It was so bad it became the laughing stock of the hour for private servers.
Just take a look at some of their ridiculous claims (taken straight from their FAQ page):
What we offer is over 14 years of combined experience of development of World of Warcraft Emulation. Our Development Team consists of some of the original and long term developers from MaNGOS, CMaNGOS, UDB, TBC-DB, SCRIPTDEV2, ACID.