What happens if I issue the "no names" command on a running ASA?

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Apr 2nd, 2010
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I need to add the "no names" command to our ASA so they don't appear in the logs. Will this interrupt service on a production ASA?


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Jennifer Halim Fri, 04/02/2010 - 15:11
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No, it will not affect any production traffic.

All it does is stopped the ip address conversion to name, and if you configure "name" back, it will start to use the name.

Hope it helps.

Kureli Sankar Sat, 04/03/2010 - 10:32
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"no names" will not affect anything.

Firewall will immediately start using IP ADDRESS instead of NAMES in the syslogs. See these sample logs below.

Apr 03 2010 12:54:23: %ASA-6-305011: Built dynamic UDP translation from inside:inside-pc-1/56520 to outside:

Apr 03 2010 12:55:24: %ASA-6-305011: Built dynamic TCP translation from inside: to outside:

sh run names

name inside-pc-1


corey@networks-... Tue, 11/22/2011 - 08:54
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Does "no names" only affect logging data, or does it get rid of names in ASDM as well?  We use names extensively in our configs and it makes administering with ASDM considerably easier.  We're worried that if we issue the command, it will make it more difficult to administer the device.

varrao Tue, 11/22/2011 - 09:00
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No names does not affect any production, it only starts shoing ip instead of names, wherever used, like logs, access-list, nats etc. And if you want the names back, just do "names" and it would be back. "no names" only disbles the names it does not delete it, when you want it back use names command.

Hope that helps.




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