[CentOS] Cannot open port 631 for Cups printer sharing

Scott Silva ssilva at sgvwater.com
Mon Mar 2 19:14:35 UTC 2009


on 3-2-2009 8:20 AM b.j. mcclure spake the following:
> I have been trying to set up printer sharing on the LAN.All machines are
> CentOS 5.2 fully updated. The problem server is a fresh build.  The box
> it is replacing worked fine for many months.
> The problem appears to be a closed port 631 on the new box.  iptables
> and ip6tables are stopped as shown by the output below.  To confirm I
> was using nmap correctly I ran it against the old server first which
> shows 631 open.  No matter what I do to the new box (192.168.2.205) 631
> remains closed.  I was running it on the new box via ssh which I think
> eleminates any swithc/router issues.
> 
> Any thoughts gladly accepted.  This must be something simple/stupid I
> have overlooked.  Not much hair left to pull out. ;-/
> 


Cups defaults to only being open on localhost. You have to edit the config
file to open more up.



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