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Old 12-18-2002, 10:37 AM   #1
Registered: Apr 2002
Location: Houston Texas
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sunrpc port 111

I started probing my servers for holes, and open ports, and I found port 111 sunrpc port open on 2 of my server. Does anyone know what this is and what it does. If it is not neccesay how do you turn it off, I do not see it in inet.d services list.
Old 12-18-2002, 02:54 PM   #2
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there's a lot of info on the web for sun's rpc:
cheers, jens
Old 12-18-2002, 03:25 PM   #3
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If your not worrying about connecting to other machines on a network like with NFS, you don't necessarily need it running.
Old 12-19-2002, 11:21 AM   #4
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That is kool, thanks guys but I decided after reading that I will be using some NFS so, I will just block that port at my firewall.
Old 12-20-2002, 04:47 AM   #5
Registered: Mar 2002
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The portmapper is only "directory enquiries" for RPC on your machine, i.e. it will tell a requesting program which port another RC service runs on. However, I can still find out which RPC programs are running by "dialling" all your port numbers and deducing what is running based on the output. Nessus does a fine job of that. It is therefore essential that you block all ports at your firewall that you do not explicitly want people to connect to. I have seen many a firewall configured to block portmapper that happily let me connect and exploit tooltalkd (as part of a legitimate pentest assignment I might add ;>).

Not suggesting that this is _your_ config, just adding info for anyone else reading the thread. ;>



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