6985 포트가 뭘까요?

최근 netstat를 확인하면 다음과 같은 포트가 떠 있습니다.

udp 0 0 127.0.0.1:6985 127.0.0.1:6985 ESTABLISHED

사용하는 리눅스 배포본은 데비안입니다.
그리고 떠 있는 프로세스들은 다음과 같습니다.

00:00:06 init [2]
00:00:00 [ksoftirqd/0]
00:00:00 [events/0]
00:00:00 [khelper]
00:00:00 [kacpid]
00:01:15 [kblockd/0]
00:00:00 [aio/0]
00:03:45 [kswapd0]
00:00:00 [kseriod]
00:00:21 [reiserfs/0]
00:00:00 [kjournald]
00:00:00 [kjournald]
00:00:00 /sbin/getty 38400 tty1
00:00:00 /sbin/getty 38400 tty2
00:00:00 /sbin/getty 38400 tty3
00:00:00 /sbin/getty 38400 tty4
00:00:00 /sbin/getty 38400 tty5
00:00:00 /sbin/getty 38400 tty6
00:00:00 /bin/sh /command/svscanboot
00:00:00 svscan /service
00:00:00 readproctitle service errors: ......................
00:00:00 [kmirrord/0]
00:00:00 /usr/sbin/cron
00:00:00 /usr/sbin/sshd
00:00:00 /sbin/klogd -x
00:00:02 /sbin/syslogd
00:00:01 /usr/sbin/spamd --create-prefs --max-children 5 --he
00:00:00 spamd child
00:00:00 spamd child
00:00:00 /usr/sbin/portsentry -tcp
00:00:00 /usr/sbin/portsentry -udp
00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --user=dbad
00:00:21 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mys
00:00:00 /usr/local/bin/svnserve -d --listen-port 7785 -r /va
00:00:04 /usr/local/java/jre/bin/java -Djava.util.logging.man
00:00:00 /usr/sbin/saslauthd -a shadow -c -n 5
00:00:00 /usr/sbin/saslauthd -a shadow -c -n 5
00:00:00 /usr/sbin/saslauthd -a shadow -c -n 5
00:00:00 /usr/sbin/saslauthd -a shadow -c -n 5
00:00:00 /usr/sbin/saslauthd -a shadow -c -n 5
00:00:00 /usr/sbin/exim4 -bd -q30m
00:00:00 /usr/sbin/inetd
00:00:00 /usr/local/pgsql/bin/postgres -D /var/data/pgsqldata
00:00:00 postgres: writer process
00:00:00 postgres: stats collector process
00:00:00 pure-ftpd (SERVER)
00:01:24 [pdflush]
00:00:29 [pdflush]
00:00:00 xe_pmon_XE
00:00:00 xe_psp0_XE
00:00:00 xe_mman_XE
00:00:00 xe_dbw0_XE
00:00:01 xe_lgwr_XE
00:00:00 xe_ckpt_XE
00:00:04 xe_smon_XE
00:00:00 xe_reco_XE
00:00:01 xe_cjq0_XE
00:00:06 xe_mmon_XE
00:00:00 xe_mmnl_XE
00:00:00 xe_d000_XE
00:00:00 xe_s000_XE
00:00:00 xe_s001_XE
00:00:00 xe_s002_XE
00:00:00 xe_s003_XE
00:00:00 xe_qmnc_XE
00:00:00 /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/
00:00:00 xe_q000_XE
00:00:00 xe_q001_XE
00:00:01 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start
00:00:00 /usr/local/apache/bin/httpd -k start