някой имал ли е подобен проблем 
MySqld Up and running 

[root@ns bin]# ./vadddomain xxxxxxxxx.com
Please enter password for postmaster:
enter password again:
 vmysql: error creating table 'dir_control': MySQL server has
gone away
vmysql: sql error[b]: MySQL server has gone away
vmysql: sql error[3]: MySQL server has gone away
 vmysql: error creating table 'dir_control': MySQL server has
gone away
 vmysql: error creating table 'dir_control': MySQL server has
gone away
vmysql: sql error[b]: MySQL server has gone away
vmysql: sql error[3]: MySQL server has gone away
vmysql: sql error[2]: MySQL server has gone away
Failed while attempting to add user to auth backend
Error: (vadduser) no auth connection


Distributsiata mi e Fedora Core 2 
vpopmail 5.4.6
            Current settings
---------------------------------------

vpopmail directory = /home/vpopmail
               uid = 98
               gid = 98
     roaming users = ON  --enable-roaming-users
    tcpserver file = /home/vpopmail/etc/tcp.smtp
    open_smtp file = /home/vpopmail/etc/open-smtp
 rebuild tcpserver file = ON  --enable-rebuild-tcpserver-file
(default)
  password learning = OFF --disable-learn-passwords
(default)
     md5 passwords = ON  --enable-md5-passwords (default)
      file locking = ON  --enable-file-locking (default)
vdelivermail fsync = OFF --disable-file-sync (default)
     make seekable = ON  --enable-make-seekable (default)
      clear passwd = OFF --disable-clear-passwd
 user dir hashing  = ON  --enable-users-big-dir (default)
address extensions = ON  --enable-qmail-ext
          ip alias = ON  --enable-ip-alias-domains
     domain quotas = OFF --disable-domainquotas (default)
       auth module = mysql --enable-auth-module=mysql
  mysql replication = OFF --disable-mysql-replication
(default)
     mysql logging = OFF --disable-mysql-logging (default)
      mysql limits = OFF --disable-mysql-limits (default)
      MySQL valias = OFF --disable-valias (default)
          auth inc = -I/usr/lib/mysql-3.23.57/include/
           auth lib = -L/usr/lib/mysql/  -lmysqlclient -lz
-lm
  system passwords = OFF --disable-passwd (default)
        pop syslog = show only failed attempts
                     --enable-logging=e (default)
      auth logging = ON  --enable-auth-logging (default)
 all domains in one SQL table = --enable-many-domains
(default)

Errora , ti dava dostatachna informaciq 
 
proveri v mysql v basa vpopmail dali imash tablicha 
dir_control 
ako nqmash prosto q sazday 
 
CREATE TABLE dir_control ( 
  domain char(64) NOT NULL default '', 
  cur_users int(11) default NULL, 
  level_cur int(11) default NULL, 
  level_max int(11) default NULL, 
  level_start0 int(11) default NULL, 
  level_start1 int(11) default NULL, 
  level_start2 int(11) default NULL, 
  level_end0 int(11) default NULL, 
  level_end1 int(11) default NULL, 
  level_end2 int(11) default NULL, 
  level_mod0 int(11) default NULL, 
  level_mod1 int(11) default NULL, 
  level_mod2 int(11) default NULL, 
  level_index0 int(11) default NULL, 
  level_index1 int(11) default NULL, 
  level_index2 int(11) default NULL, 
  the_dir char(160) default NULL, 
  PRIMARY KEY  (domain) 
) TYPE=MyISAM; 
 

Za sajalenie ne si prav. 
 Errora mi kazva che ne moje da sazdade tablitsata a ne che
 ia niama. I to zastoto ne moje da se svarje s MySQL-a.
 Spored men e svarzano s include i library dir-a koito sam
 zadal. Ne namerih versia v koiato da ima failovete koito sa
 nujni ot lib i include direktoriite predpolagam che
mysqlclient-a nesto se ebava :(( 

PP kato napravia tablitsata pak dava sastata greshka