Ed Greshko:
>> When I tested reverting to the previous behavior I simply started
>> with an empty /etc/resolv.conf.
>> No symlink.  No selinux troubles.  Everything just worked.

Sam Varshavchik:
> Well, then how do the apps that need to talk to the DNS server find
> it?  Maybe something in the glibc resolver knows to look in the
> alternate locations if /etc/resolv.conf is empty.

Didn't he then go on to say that it was populated?  (Letting the system
create that configuration file.)  Surely his subsequent tests were
after that stage.

> But there are apps that read /etc/resolv.conf themselves (Firefox
> without a proxy?). They'll be hosed now.

Surely apps that only look at that file once are always going to have
failures.  The file changes, things need to make allowances for that.

In the olden days I remember that kind of thing being a continual
showstopper for a variety of things.  Linux seemed to expect a
continual and static internet connection and didn't handle dial-up
(where you may not be connected most of the day, and your IP was
dynamic).  NTP, for instance, would try to start (and fail) if you
weren't on-line, and never recover.  I had to add a NTPd restart script
to my connection script.  Heck, even doing a graphical login to your
computer could be painful if you didn't have an assigned IP.
 
-- 
 
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