111/tcp open sunrpc

Hi


You better close this one it's remote procedure call service Crackers/Script Kiddies
probe for this open port all the time rpc services have many security issues. Attackers can register a bogus rpc service & instruct your portmapper to listen for his her commands requests. If he or she manipulates your portmapper to forward requests to avalible services on your Linux system the attackers trick them into thinking there coming from your machine if you need to run any RPC services you need to weigh the security considerations very carefully if you don't need any rpc services I'd advise you to disable them
all including Portmapper beware!


Doc