Re: How to disable completion of 127.0.0.1 entries from /etc/hosts

[Phil Pennock <zsh-workers+phil.pennock@xxxxxxxxxxxx>]

On 2013-03-31 at 10:29 +0200, vermaden wrote:
> Hi all,I use 'static' 127.0.0.1 entries in /etc/hosts to block various
> things, like described here for
> example:http://someonewhocares.org/hosts/ Of course ZSH always tries
> to 'complete' the ssh/scp and always goes thru about 100 000 entries
> in my /etc/hosts file while the 'real' ones are about 100 maybe at
> most. My question is: Is there a way to 'tell' ZSH to NOT complete
> entries beginning with 127.0.0.1 from the /etc/hosts file?
> Regards,vermaden 

Are you aware that the contents of /etc/hosts get loaded into _every_
process doing hostname resolution?  And the file isn't mmap'd in and so
shared, but is instead _read_ into each process, so is not shared
memory?

Seriously, install unbound, use unbound-control and/or home-grown tools
to maintain the list of overrides, make sure the cost of filtering is
only borne once, instead of having zsh also load a 4MB hosts file and
parse it out.  Your system will be faster for _every_ hostname-resolving
package, not just zsh.

Otherwise, use zstyle to set 'hosts':

  zstyle ':completion:*:hosts' hosts $the_hosts_you_care_about

and so override the automatic parsing of /etc/hosts.