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Date:      Mon, 16 Jun 2003 10:48:17 -0500 (CDT)
From:      brian@towles.com
To:        "FreeBSD-Questions" <freebsd-questions@freebsd.org>
Subject:   4.8 and NIS enabled client spawning listening UDP ports per process
Message-ID:  <61204.209.163.141.62.1055778497.squirrel@home.towles.com>

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Howdy All


I have a very weird issue.

Im running a 4.8 Release box as a NIS client and for every process that
either logs in or changes running as user a Listening UDP port is created.

Im putting some sample output from ps sockstat and lsof to show what I
mean.  The problem is these UDP ports are listening ports bound to all
interfaces.

It appears to be releated to NIS because when i uncomment the +::::(etc)
from the passwd and group files it goes away for any newly started
processes.   I dont even have to turn off ypbind.

Ive tried to put ypbind in secure mode and well as non broadcast mode and
the same results happen.

Any ideas as to what this is? More importantly, any idea of how to get rid
of it?

Thanks
-=Brian

------Applicable rc.conf entries------
nisdomainname="nisdomain"
nis_client_enable="YES"
nis_client_flags="-m -S nisdomain,192.168.0.20"

------sample ps awux entries---------
root      189  0.0  0.1   952  656  d0  Is+  10:28AM   0:00.07
/usr/libexec/getty std.9600 ttyd0
www       191  0.9  2.1 12428 10808  ??  S    10:28AM   0:00.44
/usr/local/sbin/httpd -k start -DSSL
www       192  0.2  1.8 10664 8968  ??  S    10:28AM   0:00.34
/usr/local/sbin/httpd -k start -DSSL
www       193  0.0  2.4 13832 12296  ??  S    10:28AM   0:01.41
/usr/local/sbin/httpd -k start -DSSL
www       194  0.9  2.1 12332 10728  ??  S    10:28AM   0:00.47
/usr/local/sbin/httpd -k start -DSSL
root      221  0.0  0.5  5708 2484  ??  I    10:30AM   0:00.54 sshd: brian
[priv] (sshd)
brian     223  0.0  0.5  5700 2532  ??  S    10:30AM   0:00.69 sshd:
brian@ttyp0 (sshd)
brian     224  0.0  0.2  1120  936  p0  Is   10:30AM   0:00.47 -bash (bash)
root      229  0.0  0.2  1116  956  p0  S    10:30AM   0:00.93 -su (bash)
postfix   366  0.0  0.3  2280 1352  ??  S    10:43AM   0:00.07 proxymap -t
unix -u
postfix   368  0.0  0.3  2272 1348  ??  S    10:43AM   0:00.15
trivial-rewrite -n rewrite -t unix -u

--- results of sockstat -4 | grep udp -----
www      httpd      241   16 udp4   *:984                 *:*
www      httpd      238   16 udp4   *:989                 *:*
brian    bash       224    4 udp4   *:1068                *:*
brian    sshd       223    6 udp4   *:995                 *:*
root     sshd       221    7 udp4   *:996                 *:*
www      httpd      194   16 udp4   *:1005                *:*
www      httpd      193   16 udp4   *:1008                *:*
www      httpd      192   16 udp4   *:1007                *:*
www      httpd      191   16 udp4   *:1006                *:*
www      httpd      190   16 udp4   *:1009                *:*
brian    imapd      188    4 udp4   *:1010                *:*
root     snmpd      185    6 udp4   *:161                 *:*
postfix  qmgr       178    9 udp4   *:1012                *:*
postfix  pickup     177    9 udp4   *:1013                *:*
root     ypbind      81    4 udp4   *:1017                *:*
daemon   portmap     79    3 udp4   *:111                 *:*
bind     named       76    3 udp4   *:53                  *:*
bind     named       76   20 udp4   192.168.0.2:53        *:*
bind     named       76   22 udp4   127.0.0.1:53          *:*
root     syslogd     73    4 udp4   *:514                 *:*


----results of lsof | grep UDP -----
syslogd    73    root    4u  IPv4   0xd5220e00        0t0    UDP *:syslog
named      76    bind    3u  IPv4   0xd5220d40        0t0    UDP *:domain
named      76    bind   20u  IPv4   0xd5220c80        0t0    UDP
homestar.home.towles.com:domain
named      76    bind   22u  IPv4   0xd5220bc0        0t0    UDP
localhost.home.towles.com:domain
portmap    79  daemon    3u  IPv4   0xd5220b00        0t0    UDP *:sunrpc
ypbind     81    root    4u  IPv4   0xd5220a40        0t0    UDP *:1017
pickup    177 postfix    9u  IPv4   0xd5220980        0t0    UDP *:1013
qmgr      178 postfix    9u  IPv4   0xd52208c0        0t0    UDP *:1012
snmpd     185    root    6u  IPv4   0xd5220800        0t0    UDP *:snmp
imapd     188   brian    4u  IPv4   0xd5220740        0t0    UDP *:1010
httpd     190     www   16u  IPv4   0xd52205c0        0t0    UDP *:1009
httpd     191     www   16u  IPv4   0xd5220380        0t0    UDP *:1006
httpd     192     www   16u  IPv4   0xd5220440        0t0    UDP *:1007
httpd     193     www   16u  IPv4   0xd5220500        0t0    UDP *:1008
httpd     194     www   16u  IPv4   0xd52202c0        0t0    UDP *:1005
sshd      221    root    7u  IPv4   0xd5221280        0t0    UDP *:vsinet
sshd      223   brian    6u  IPv4   0xd5221340        0t0    UDP *:pop3s
bash      224   brian    4u  IPv4   0xd5221400        0t0    UDP
*:instl_bootc
httpd     238     www   16u  IPv4   0xd52214c0        0t0    UDP *:ftps-data
httpd     241     www   16u  IPv4   0xd5221640        0t0    UDP *:984





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