I am a yeshiva Bachur in town x. On Erev Shabbos Chanukah, I will I’yH travel to town y where I will sleep in a Yeshiva dorm and eat the Seudos by Yungerleit. I cannot light in the dorm because of safety. Where should i light? Can I light by my Friday night host?

It is indeed correct to light by your Friday night host.