Вопрос по netstat

Здравствуйте, форумчане. Возник вопрос не то чтобы особой практической важности, но интересно узнать.

Вот кусок того что выдаёт netstat -a
[console]
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:55779 *:* LISTEN
tcp 0 0 *:sunrpc *:* LISTEN
tcp 0 0 *:ssh *:* LISTEN
tcp 0 0 localhost.localdomain:smtp *:* LISTEN
tcp 0 0 *:46377 *:* LISTEN
tcp 0 0 *:sunrpc *:* LISTEN
tcp 0 0 *:ssh *:* LISTEN
udp 0 0 *:703 *:*
udp 0 0 *:mdns *:*
udp 0 0 *:54044 *:*
udp 0 0 *:52273 *:*
udp 0 0 *:bootpc *:*
udp 0 0 *:dei-icda *:*
udp 0 0 *:sunrpc *:*
udp 0 0 *:46739 *:*
udp 0 0 *:34995 *:*
udp 0 0 *:43844 *:*
udp 0 0 *:dei-icda *:*
udp 0 0 *:sunrpc *:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 58570 /tmp/gedit.student.2798169819
unix 2 [ ACC ] STREAM LISTENING 8663 @/com/ubuntu/upstart
unix 2 [ ACC ] STREAM LISTENING 12162 @/var/run/hald/dbus-slaPUUXnEx
unix 2 [ ACC ] STREAM LISTENING 13755 @/tmp/gdm-session-ZlyLjFgL
unix 2 [ ACC ] STREAM LISTENING 58585 /tmp/orbit-student/linc-7048-0-2b21a4f8c7b71
unix 2 [ ACC ] STREAM LISTENING 52022 @/tmp/dbus-YyAGL5rrP3
unix 2 [ ACC ] STREAM LISTENING 13497 @/tmp/.X11-unix/X0
unix 19 [ ] DGRAM 11106 /dev/log
unix 2 [ ] DGRAM 8768 @/org/kernel/udev/udevd
unix 2 [ ACC ] STREAM LISTENING 12930 /dev/gpmctl
unix 2 [ ] DGRAM 12196 @/org/freedesktop/hal/udev_event
unix 2 [ ACC ] STREAM LISTENING 13566 @/tmp/gdm-greeter-JNwwbnKY
unix 2 [ ACC ] STREAM LISTENING 11312 /var/run/rpcbind.sock
unix 2 [ ACC ] STREAM LISTENING 11401 /var/run/dbus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 12154 @/var/run/hald/dbus-2weanLfS8e
unix 2 [ ACC ] STREAM LISTENING 15299 @/tmp/dbus-GNDohb8bhD
unix 2 [ ACC ] STREAM LISTENING 11563 /var/run/avahi-daemon/socket
unix 2 [ ACC ] STREAM LISTENING 13498 /tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 15533 /tmp/orbit-student/linc-5ed-0-2061688f816e8
unix 2 [ ACC ] STREAM LISTENING 15774 /tmp/orbit-student/linc-593-0-78c423dc9b0a9
unix 2 [ ACC ] STREAM LISTENING 15996 /tmp/orbit-student/linc-5f7-0-6f37edbfae810
unix 2 [ ACC ] STREAM LISTENING 16161 /tmp/orbit-student/linc-603-0-40ce9072f0cc9
unix 2 [ ACC ] STREAM LISTENING 17313 /home/student/.pulse/f6cd6472f42f7a74d49d3c9900000058-runtime/native
unix 2 [ ACC ] STREAM LISTENING 16234 /tmp/orbit-student/linc-60b-0-3640368691b03
unix 2 [ ACC ] STREAM LISTENING 16699 /tmp/orbit-student/linc-614-0-5dd32edbf329c
[/console]

Вопрос по поводу Path - в каких случаях перед путём стоит @, а в каких нет?

WhoIam, сначала идут порты, потом сокеты.

в секции Active Internet connections (servers and established) порты насколькоя понял, в секции Active UNIX domain sockets (servers and established) - сокеты, или нет?

А вот:
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 58570 /tmp/gedit.student.2798169819 - без собаки
unix 2 [ ACC ] STREAM LISTENING 8663 @/com/ubuntu/upstart - с собакой
вот в этом месте хотелось бы подробнее...