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Bug#340514: marked as done (libc6: dns resolver sort ip address list)

Your message dated Thu, 16 Feb 2006 09:12:30 +0100
with message-id <20060216081230.GA17785@linuxfr.org>
and subject line Bug#340514: libc6: dns resolver sort ip address list
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: libc6
Version: 2.3.5-8
Severity: important


Resolver inconditionnaly sort ip address lists defeating DNS round robin
load balancing:
exemple :
first invocation :
efuste@rafale:~$ nslookup http.us.debian.org
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
Name:   http.us.debian.org
Address: 204.152.191.7
Name:   http.us.debian.org
Address: 216.37.55.114
Name:   http.us.debian.org
Address: 35.9.37.225
Name:   http.us.debian.org
Address: 64.50.236.52
Name:   http.us.debian.org
Address: 128.101.80.133

another one:
efuste@rafale:~$ nslookup http.us.debian.org
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
Name:   http.us.debian.org
Address: 128.101.80.133
Name:   http.us.debian.org
Address: 204.152.191.7
Name:   http.us.debian.org
Address: 216.37.55.114
Name:   http.us.debian.org
Address: 35.9.37.225
Name:   http.us.debian.org
Address: 64.50.236.52

--> direct DNS Query --> round robin OK

now using the glibc resolver:
efuste@rafale:~$ wget http.us.debian.org
--23:22:40--  http://http.us.debian.org/
           => `index.html'
Resolving http.us.debian.org... 35.9.37.225, 64.50.236.52, 128.101.80.133, ...
Connecting to http.us.debian.org|35.9.37.225|:80...

next try:

efuste@rafale:~$ wget http.us.debian.org
--23:22:44--  http://http.us.debian.org/
           => `index.html.1'
Resolving http.us.debian.org... 35.9.37.225, 64.50.236.52, 128.101.80.133, ...
Connecting to http.us.debian.org|35.9.37.225|:80...  connected.

--> address are always sorted and I am sticked to 35.9.37.225

try with telnet :
fuste@rafale:~$ telnet  http.us.debian.org 80
Trying 35.9.37.225...
Connected to http.us.debian.org.
Escape character is '^]'.

Connection closed by foreign host.
efuste@rafale:~$ telnet  http.us.debian.org 80
Trying 35.9.37.225...
Connected to http.us.debian.org.
Escape character is '^]'.

Connection closed by foreign host.
efuste@rafale:~$ telnet  http.us.debian.org 80
Trying 35.9.37.225...
Connected to http.us.debian.org.
Escape character is '^]'.

Connection closed by foreign host.

--> same behaviour

but not with ftp ......?!?!?!


This behaviour defeat the round robin on http.us.debian.org for apt-get
(which is my main concern).

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i586)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-rc5
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 2.3.6-1

On Tue, Feb 14, 2006 at 11:52:07PM +0100, Emmanuel Fusté wrote:
> Bug solved by libc6 2.3.6-1
> Sould be closed.

Thnaks for following up, closing it now.

Denis

--- End Message ---
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