93000 - DNS Change on network does not get reflected in browser

Status: VERIFIED DUPLICATE of bug 64857

(Core :: Networking, defect)

Description

[Archie Roboostoff]

Not sure if this is a bug or not but I found this on accident...

Our DNS server went down so I switched to one that I know works.  I made the
change using linuxconf and ran

/etc/rc5.d/S02usbd start

to synch the changes with the system.  Mozilla still couldn't resolve any
addresses.  Apparently it was still trying to use the old DNS server I had. 
Perhaps it is cached somewhere.  I tried this same scenario using Netscape 4.77
and once I made the changes and synched them with the system, the browser worked
fine, right away.  I switched back to the old one (the non working name server),
and 4.77 could not resolve (expected outcome).

I am using Mandrake dist. version 8.0 with Linux kernel 2.4.3

-a

Comment 1

[timeless]

yes we cache

Comment 2

[Bradley Baetz (:bbaetz)]

actually, libc caches.

I'm not sure why ns4 worked, but ISTR that it starts up a separate process using
fork, (which would be using a new copy of the resolv.conf data), while we use
threads.

->gordon, but I recommend INVALID.

I change resolv.conf in my ipup scripts for my ppp connections, and other
programs need to be restarted because of this problem.

Comment 3

[gordon]

This is a duplicate.  We have a patch, but need some help verifying it works on
various UNIX platforms.  The patch allows you to toggle offline/online to pick
up changes to TCP settings.

*** This bug has been marked as a duplicate of 64857 ***

Comment 4

[benc]

VERIFIED: same problem.