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Old 04-11-2013, 12:44 AM   #1
thekillerbean
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Registered: Jan 2002
Distribution: Ubuntu 12.04.2 (Precise)
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Question Decommission NIS server


Hello all.

I'm in the process of decommissioning a NIS server as I've migrated my account management to active directory. All my *NIX users will now be authenticating to the AD server and I've reconfigured all servers and clients (that I know of) to use AD. Now, before I turn off NIS entirely, I need to ensure that nothing is still authenticating against it which leads to my question:

Does NIS itself have tools that will allow me to see this kind of information? If not, what else can I do to determine what (if anything) is still using NIS for authentication? I've tried doing packet captures (with one server deliberately still pointing to NIS) but could not discern the difference in the output.

Cheers,
tkb.
 
Old 04-11-2013, 02:24 AM   #2
acid_kewpie
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Location: UK
Distribution: Gentoo, RHEL, Fedora, Centos
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packet captures should be more than adequate.

you can see where ypbind is listening:
Code:
rpcinfo -p|grep ypserv
and then just capture on the specific bind ports
Code:
sudo tcpdump -n -n port 847 or port 844
 
  


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