[all variants] Understanding nmap output

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http://ubuntuforums.org – I just inherited a new desktop at school/work and need some help understanding the nmap output. I ran nmap with nmap-online.com and got this output: Code: PORT    STATE    SERVICE 22/tcp  open    ssh 111/tcp filtered rpcbind 135/tcp filtered msrpc 139/tcp filtered netbios-ssn 179/tcp filtered bgp 445/tcp filtered microsoft-ds 515/tcp filtered printer I understand the ssh port but there used to be a windows partition on this machine (I removed it). I don't really know what these other ports are for or what I should do about it. Thanks! (Hardware)