w hangs before loading

[Chuck Swiger]

On Mar 7, 2007, at 12:41 PM, Vivek Prasannan wrote:
[ ...cross-posting between freebsd-questions and other FreeBSD lists
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> When I type the command 'w' it holds for a while before printing  
> the output.
> There is no firewall in the system, load average is below 0.8 and I  
> suspect
> it is something else. Any thoughts on this.

The 'w' command attempts to look up the hostnames for any users which  
are remotely logged in.

If you encounter a significant delay, that suggests that reverse DNS  
(aka PTR record lookups) is not properly configured or is performing  
slowly in your situation.

-- 
-Chuck