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-   -   Move mountd to reserved port??? (https://www.linuxquestions.org/questions/linux-security-4/move-mountd-to-reserved-port-230927/)

lemay_jeff 09-15-2004 10:38 AM

Move mountd to reserved port???
 
How would I go about moving the mount daemeon to a reserved port?? How would I even find out which ports ARE reserved!?!? What affect (if any) will this have on the box?? This is for redhat 9 btw.....thanks!

unSpawn 09-25-2004 07:24 AM

How would I go about moving the mount daemeon to a reserved port??
Specify port/protocol in /etc/services, example stupidly sets port 80: "mount 80/udp # rpc-mountd on custom port", or use startup param --port.


How would I even find out which ports ARE reserved!?!?
Ports 0-1024 are the reserved ports. It means to processes is that only processes started by the root account user are allowed to bind to a port below 1024. What that means to you as remote user is that you have a very weak guarantee a process on a port below 1024 is vaguely safe (IOW: no real guarantee at all).

What affect (if any) will this have on the box??
It will not enhance security and the human root account owner's hair will fall out.


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