和泉です。
下記の記事で解決情報がありました。

http://cobalt-forum.sun.com/forum/index.php?t=msg&th=1306&start=0&rid=&S=d2a
f3497d5e1221c5a8da63653c4b037

症状は、johnharmanと同じで
-----------------------------------------------------------------
[Re: Raq550 :RaQ550-All-Security-0.0.1-15578: Latest update glibc - mysql
remote connections fail   Wed, 23 April 2003 06:59]
I am getting the same thing here, we have a totally stock 550 without
anything from pkgmaster or the likes.
When I do rpm -qa|grep MySQL I get
MySQL-client-3.23.54a-1C1
MySQL-Max-3.23.54a-1C1
MySQL-devel-3.23.54a-1C1
MySQL-shared-3.23.54a-1C1
MySQL-3.23.54a-1C1

It was all working fine until I installed the bluelinq patches released last
week (including the glibc one mentioned above). I now also get Error 2013:
Lost connection to MySQL server during query whenever I try to connect
remotely, yet connections work fine if I use MySQL from an SSH connection.

If I have an SSH connection up as root when I try to connect remotely (e.g.
from mysql on a win98 box) I see the following message:
/usr/bin/safe_mysqld: line 278: 7981 Segmentation fault $NOHUP_NICENESS
$ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR
$USER_OPTION --pid-file=$pid_file --skip-locking >>$err_log 2>&1

Number of processes running now: 1
mysqld-max process hanging, pid 7984 - killed
030423 11:21:47 mysqld restarted

Any help much appreciated
----------------------------------------
のようなメッセージです。

最終的に、
------------------
I finally got it to work by adding --skip-name-resolve to the startup in
/etc/rc.d/init.d/mysql
mysql's support site is quite good and I found the answer there.
one caveat - you can't use hostname in your mysql Host field - only IP
addresses
------------------
との事で、

my.cnfに
------------------
[mysqld]
skip-name-resolve
------------------
の一行を付け足すことで動きました。

AKI様ありがとうございました。
解決ソースを発見してくださった管理者の方々にも感謝です。


和泉慎一

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