Re: Again ... Re: security.debian.org
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Matus UHLAR - fantomas wrote:
>>>> On Thu, 2007-03-29 at 10:32 -0700, Raquel wrote:
>>>>> This is happening again. IP #: 184.108.40.206
>>> On Thu Mar 29, 2007 at 13:44:40 -0400, Jim Popovitch wrote:
>>>> Yep, I saw it too a bit earlier. :-(
>>>> I wonder if the server is under high load or DDoS attack?
>> On Thu, 29 Mar 2007 19:48:29 +0200
>> Martin Zobel-Helas <email@example.com> wrote:
>>> Yesterday evening, the openoffice.org DSA seems have to DDoSed
>>> security.d.o :)
> On 29.03.07 10:55, Raquel wrote:
>> Didn't this happen a few months (maybe a year ago?) back with
>> another upgrade, where it caused problems with a security server?
> yes, it happened with Xfree86 upgrade. 2 new servers were then introduced in
> order to prevent this problem from re-appearing.
> However this does not _seem_ to be enough, and I guess it's due to "feature"
> of glibc, that sorts IP addresses from numerically lowest one to numerically
> highest one (so it spoils attempts for DNS load-balancing), so if any program
> is the order of addresses returned via gethostbyname() or getnameinfo(), it
> tries them always in the following order:
> % getent hosts security.debian.org
> 220.127.116.11 security.debian.org
> 18.104.22.168 security.debian.org
> 22.214.171.124 security.debian.org
> so no wonder _if_ 126.96.36.199 is loaded more than other servers.
> many times I have to re-try update/upgrade to ask other servers and
> 188.8.131.52 seems to be the slowest for me.
I was under the impression that why netselect (picks closets and fastest
server) was implemented.
vrode@promiscious:~$ sudo netselect -vv security.debian.org
Running netselect to choose 1 out of 3 addresses.
184.108.40.206 195 ms 14 hops 90% ok ( 9/10)
220.127.116.11 209 ms 11 hops 90% ok ( 9/10)
18.104.22.168 212 ms 23 hops 90% ok ( 9/10)
> I tried to discuss this "feature" in debian-glibc list
> but first time I did not guess the right problem, then I gave up "solving"
> this issue...
> I hope someone will confirm or deny this... I don't know how are debian
> security servers loaded... I only know that 22.214.171.124 is usually very
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