Hi All,

am using skype on centos4.1 and am wanting to understand skype7s port usage better. I'm using ethereal and netstat -tnlup and -a and lsof -i and find that there are multiple connections established to the below ports etc.


[root@localhost ~]# netstat -tnlup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:32769 0.0.0.0:* LISTEN 1818/rpc.statd
tcp 0 0 0.0.0.0:32932 0.0.0.0:* LISTEN 3880/skype
tcp 0 0 0.0.0.0:33417 0.0.0.0:* LISTEN 4243/kinput2
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1798/portmap
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1946/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2041/sendmail: acce
tcp 0 0 :::22 :: LISTEN 1980/sshd
udp 0 0 0.0.0.0:32768 0.0.0.0:* 1818/rpc.statd
udp 0 0 0.0.0.0:32932 0.0.0.0:* 3880/skype
udp 0 0 127.0.0.1:32832 0.0.0.0:* 3880/skype
udp 0 0 0.0.0.0:32833 0.0.0.0:* 3880/skype
udp 0 0 0.0.0.0:68 0.0.0.0:* 1715/dhclient
udp 0 0 0.0.0.0:722 0.0.0.0:* 1818/rpc.statd
udp 0 0 0.0.0.0:111 0.0.0.0:* 1798/portmap
udp 0 0 0.0.0.0:631 0.0.0.0:* 1946/cupsd
[root@localhost ~]# netstat -a
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:32769 * LISTEN
tcp 0 0 *:32932 * LISTEN
tcp 0 0 *:33417 * LISTEN
tcp 0 0 *:sunrpc * LISTEN
tcp 0 0 localhost.localdomain:ipp * LISTEN
tcp 0 0 localhost.localdomain:smtp * LISTEN
tcp 0 1 192.168.0.15:33452 classifieds.japantoday:http FIN_WAIT1
tcp 0 0 192.168.0.15:33433 flets195-088.sensyu.n:49363 ESTABLISHED
tcp 0 0 192.168.0.15:32842 baym-cs107.msgr.hotmai:1863 ESTABLISHED
tcp 0 0 *:ssh * LISTEN
udp 0 0 *:32768 *
udp 0 0 *:32932 *
udp 0 0 localhost.localdo:32832 *
udp 0 0 *:32833 *
udp 0 0 *:bootpc *
udp 0 0 *:722 *
udp 0 0 *:sunrpc *
udp 0 0 *:ipp *
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 6491 /tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 4870 /dev/gpmctl
unix 2 [ ACC ] STREAM LISTENING 6830 /tmp/ssh-pveOpZ2856/agent.2856
unix 2 [ ACC ] STREAM LISTENING 6892 /tmp/scim-socket-frontend-coolrabbit
unix 2 [ ACC ] STREAM LISTENING 6915 /tmp/scim-helper-manager-socket-coolrabbit
unix 2 [ ACC ] STREAM LISTENING 6919 /tmp/scim-panel-socket:0-coolrabbit
unix 2 [ ACC ] STREAM LISTENING 6932 @/tmp/dbus-TkTSbs6w9O
unix 2 [ ACC ] STREAM LISTENING 7537 /tmp/mapping-coolrabbit
unix 2 [ ACC ] STREAM LISTENING 6957 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 2 [ ACC ] STREAM LISTENING 6966 /tmp/orbit-coolrabbit/linc-b0d-0-1b6e5c9cb73f6
unix 2 [ ACC ] STREAM LISTENING 8445 /tmp/orbit-coolrabbit/linc-bee-0-2ae015abe1511
unix 2 [ ACC ] STREAM LISTENING 7134 /tmp/.ICE-unix/2829
unix 2 [ ACC ] STREAM LISTENING 7143 /tmp/keyring-tP8zaz/socket
unix 2 [ ACC ] STREAM LISTENING 7150 /tmp/.esd/socket
unix 2 [ ACC ] STREAM LISTENING 7168 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 2 [ ACC ] STREAM LISTENING 7188 /tmp/orbit-coolrabbit/linc-b60-0-dc25fded6fc3
unix 2 [ ACC ] STREAM LISTENING 7359 /tmp/orbit-coolrabbit/linc-b87-0-1abade3edf29a
unix 2 [ ACC ] STREAM LISTENING 7389 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 2 [ ACC ] STREAM LISTENING 7411 /tmp/orbit-coolrabbit/linc-b8f-0-cbed3cb37005
unix 2 [ ACC ] STREAM LISTENING 7432 /tmp/orbit-coolrabbit/linc-b8d-0-cbed3cbc5be1
unix 2 [ ACC ] STREAM LISTENING 7454 /tmp/orbit-coolrabbit/linc-b91-0-7e5aa7be45c06
unix 2 [ ACC ] STREAM LISTENING 7506 /tmp/orbit-coolrabbit/linc-b9c-0-196c464f078c
unix 2 [ ACC ] STREAM LISTENING 7584 /tmp/orbit-coolrabbit/linc-ba8-0-134c7935dec3b
unix 2 [ ACC ] STREAM LISTENING 7620 /tmp/orbit-coolrabbit/linc-baa-0-680fa68fa79c3
unix 2 [ ACC ] STREAM LISTENING 8142 /tmp/orbit-coolrabbit/linc-bb0-0-1ca1f1b305f7
unix 13 [ ] DGRAM 4188 /dev/log
unix 2 [ ACC ] STREAM LISTENING 7670 /tmp/orbit-coolrabbit/linc-bac-0-be3557076ce2
unix 2 [ ACC ] STREAM LISTENING 7707 /tmp/orbit-coolrabbit/linc-bae-0-76431a2e13479
unix 2 [ ACC ] STREAM LISTENING 8553 /tmp/orbit-coolrabbit/linc-c21-0-31f430da4d619
unix 2 [ ACC ] STREAM LISTENING 7203 @/tmp/fam-coolrabbit-
unix 2 [ ] DGRAM 6050 @/var/run/hal/hotplug_socket
unix 2 [ ACC ] STREAM LISTENING 20439 /tmp/.ki2-unix/_0-ja_JP
unix 2 [ ] DGRAM 2625 @udevd
unix 2 [ ACC ] STREAM LISTENING 4933 /var/run/.iroha_unix/IROHA
unix 2 [ ACC ] STREAM LISTENING 4935 /var/run/iiim/.iiimp-unix/9010
unix 2 [ ACC ] STREAM LISTENING 5122 /var/run/dbus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 5044 /tmp/.font-unix/fs7100
unix 2 [ ACC ] STREAM LISTENING 6406 /tmp/.gdm_socket
unix 3 [ ] STREAM CONNECTED 20433 /var/run/.iroha_unix/IROHA
unix 3 [ ] STREAM CONNECTED 20432
unix 3 [ ] STREAM CONNECTED 20428 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 20427
unix 3 [ ] STREAM CONNECTED 18161 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 18160
unix 3 [ ] STREAM CONNECTED 15278 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 15277
unix 3 [ ] STREAM CONNECTED 15265 /var/run/.iroha_unix/IROHA
unix 3 [ ] STREAM CONNECTED 15264
unix 3 [ ] STREAM CONNECTED 15260 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 15259
unix 3 [ ] STREAM CONNECTED 13709 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 13708
unix 3 [ ] STREAM CONNECTED 13707 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 13706
unix 3 [ ] STREAM CONNECTED 11213 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 11212
unix 3 [ ] STREAM CONNECTED 11184 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 11183
unix 2 [ ] DGRAM 11177
unix 3 [ ] STREAM CONNECTED 11154 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 11153
unix 3 [ ] STREAM CONNECTED 10330 @/tmp/fam-coolrabbit-
unix 3 [ ] STREAM CONNECTED 10329
unix 3 [ ] STREAM CONNECTED 9094 /var/run/.iroha_unix/IROHA
unix 3 [ ] STREAM CONNECTED 9093
unix 3 [ ] STREAM CONNECTED 9089 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 9088
unix 3 [ ] STREAM CONNECTED 8960 /tmp/.X11-unix/X0
unix 4 [ ] STREAM CONNECTED 8959
unix 3 [ ] STREAM CONNECTED 8926 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 8925
unix 3 [ ] STREAM CONNECTED 8756 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 8755
unix 3 [ ] STREAM CONNECTED 8556 /tmp/orbit-coolrabbit/linc-c21-0-31f430da4d619
unix 3 [ ] STREAM CONNECTED 8555
unix 3 [ ] STREAM CONNECTED 8552 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 8551
unix 3 [ ] STREAM CONNECTED 8540 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 8539
unix 3 [ ] STREAM CONNECTED 8500 /var/run/.iroha_unix/IROHA
unix 3 [ ] STREAM CONNECTED 8499
unix 3 [ ] STREAM CONNECTED 8494 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 8493
unix 3 [ ] STREAM CONNECTED 8448 /tmp/orbit-coolrabbit/linc-bee-0-2ae015abe1511
unix 3 [ ] STREAM CONNECTED 8447
unix 3 [ ] STREAM CONNECTED 8444 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 8443
unix 3 [ ] STREAM CONNECTED 8430 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 8429
unix 3 [ ] STREAM CONNECTED 8346 /var/run/.iroha_unix/IROHA
unix 3 [ ] STREAM CONNECTED 8345
unix 3 [ ] STREAM CONNECTED 8340 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 8339
unix 3 [ ] STREAM CONNECTED 8280
unix 3 [ ] STREAM CONNECTED 8279
unix 3 [ ] STREAM CONNECTED 8273 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 8272
unix 3 [ ] STREAM CONNECTED 8158 /tmp/orbit-coolrabbit/linc-bb0-0-1ca1f1b305f7
unix 3 [ ] STREAM CONNECTED 8157
unix 3 [ ] STREAM CONNECTED 8155 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 8154
unix 3 [ ] STREAM CONNECTED 8145 /tmp/orbit-coolrabbit/linc-bb0-0-1ca1f1b305f7
unix 3 [ ] STREAM CONNECTED 8144
unix 3 [ ] STREAM CONNECTED 8140 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 8139
unix 3 [ ] STREAM CONNECTED 8134 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 8133
unix 3 [ ] STREAM CONNECTED 8124 /tmp/.X11-unix/X0
unix 11 [ ] STREAM CONNECTED 8123
unix 3 [ ] STREAM CONNECTED 7724 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7723
unix 3 [ ] STREAM CONNECTED 7722 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7721
unix 3 [ ] STREAM CONNECTED 7720 /tmp/orbit-coolrabbit/linc-bae-0-76431a2e13479
unix 3 [ ] STREAM CONNECTED 7719
unix 3 [ ] STREAM CONNECTED 7714 /tmp/orbit-coolrabbit/linc-bae-0-76431a2e13479
unix 3 [ ] STREAM CONNECTED 7713
unix 3 [ ] STREAM CONNECTED 7712 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7711
unix 3 [ ] STREAM CONNECTED 7710 /tmp/orbit-coolrabbit/linc-bae-0-76431a2e13479
unix 3 [ ] STREAM CONNECTED 7709
unix 3 [ ] STREAM CONNECTED 7706 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7705
unix 3 [ ] STREAM CONNECTED 7700 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7699
unix 3 [ ] STREAM CONNECTED 7687 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7686
unix 3 [ ] STREAM CONNECTED 7685 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7684
unix 3 [ ] STREAM CONNECTED 7683 /tmp/orbit-coolrabbit/linc-bac-0-be3557076ce2
unix 3 [ ] STREAM CONNECTED 7682
unix 3 [ ] STREAM CONNECTED 7677 /tmp/orbit-coolrabbit/linc-bac-0-be3557076ce2
unix 3 [ ] STREAM CONNECTED 7676
unix 3 [ ] STREAM CONNECTED 7675 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7674
unix 3 [ ] STREAM CONNECTED 7673 /tmp/orbit-coolrabbit/linc-bac-0-be3557076ce2
unix 3 [ ] STREAM CONNECTED 7672
unix 3 [ ] STREAM CONNECTED 7669 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7668
unix 3 [ ] STREAM CONNECTED 7663 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7662
unix 3 [ ] STREAM CONNECTED 7641 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7640
unix 3 [ ] STREAM CONNECTED 7635 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7634
unix 3 [ ] STREAM CONNECTED 7633 /tmp/orbit-coolrabbit/linc-baa-0-680fa68fa79c3
unix 3 [ ] STREAM CONNECTED 7632
unix 3 [ ] STREAM CONNECTED 7627 /tmp/orbit-coolrabbit/linc-baa-0-680fa68fa79c3
unix 3 [ ] STREAM CONNECTED 7626
unix 3 [ ] STREAM CONNECTED 7625 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7624
unix 3 [ ] STREAM CONNECTED 7623 /tmp/orbit-coolrabbit/linc-baa-0-680fa68fa79c3
unix 3 [ ] STREAM CONNECTED 7622
unix 3 [ ] STREAM CONNECTED 7619 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7618
unix 3 [ ] STREAM CONNECTED 7613 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7612
unix 3 [ ] STREAM CONNECTED 7601 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7600
unix 3 [ ] STREAM CONNECTED 7599 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7598
unix 3 [ ] STREAM CONNECTED 7597 /tmp/orbit-coolrabbit/linc-ba8-0-134c7935dec3b
unix 3 [ ] STREAM CONNECTED 7596
unix 3 [ ] STREAM CONNECTED 7591 /tmp/orbit-coolrabbit/linc-ba8-0-134c7935dec3b
unix 3 [ ] STREAM CONNECTED 7590
unix 3 [ ] STREAM CONNECTED 7589 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7588
unix 3 [ ] STREAM CONNECTED 7587 /tmp/orbit-coolrabbit/linc-ba8-0-134c7935dec3b
unix 3 [ ] STREAM CONNECTED 7586
unix 3 [ ] STREAM CONNECTED 7583 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7582
unix 3 [ ] STREAM CONNECTED 7577 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7576
unix 3 [ ] STREAM CONNECTED 7558 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7557
unix 3 [ ] STREAM CONNECTED 7551 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7550
unix 3 [ ] STREAM CONNECTED 7541 /tmp/mapping-coolrabbit
unix 3 [ ] STREAM CONNECTED 7533
unix 3 [ ] STREAM CONNECTED 7526 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 7525
unix 3 [ ] STREAM CONNECTED 7524 /tmp/orbit-coolrabbit/linc-b9c-0-196c464f078c
unix 3 [ ] STREAM CONNECTED 7523
unix 3 [ ] STREAM CONNECTED 7522 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7521
unix 3 [ ] STREAM CONNECTED 7520 @/tmp/fam-coolrabbit-
unix 3 [ ] STREAM CONNECTED 7519
unix 3 [ ] STREAM CONNECTED 7518 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 7517
unix 3 [ ] STREAM CONNECTED 7516 /tmp/orbit-coolrabbit/linc-b8d-0-cbed3cbc5be1
unix 3 [ ] STREAM CONNECTED 7515
unix 3 [ ] STREAM CONNECTED 7514 /tmp/orbit-coolrabbit/linc-b9c-0-196c464f078c
unix 3 [ ] STREAM CONNECTED 7513
unix 3 [ ] STREAM CONNECTED 7509 /tmp/orbit-coolrabbit/linc-b9c-0-196c464f078c
unix 3 [ ] STREAM CONNECTED 7508
unix 3 [ ] STREAM CONNECTED 7505 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7504
unix 3 [ ] STREAM CONNECTED 7492 /tmp/orbit-coolrabbit/linc-b8d-0-cbed3cbc5be1
unix 3 [ ] STREAM CONNECTED 7491
unix 3 [ ] STREAM CONNECTED 7490 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7489
unix 3 [ ] STREAM CONNECTED 7477 @/tmp/fam-coolrabbit-
unix 3 [ ] STREAM CONNECTED 7476
unix 3 [ ] STREAM CONNECTED 7475 @/tmp/fam-coolrabbit-
unix 3 [ ] STREAM CONNECTED 7474
unix 3 [ ] STREAM CONNECTED 7478 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7473
unix 3 [ ] STREAM CONNECTED 7472 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7471
unix 3 [ ] STREAM CONNECTED 7460 @/tmp/dbus-TkTSbs6w9O
unix 3 [ ] STREAM CONNECTED 7459
unix 3 [ ] STREAM CONNECTED 7457 /tmp/orbit-coolrabbit/linc-b91-0-7e5aa7be45c06
unix 3 [ ] STREAM CONNECTED 7456
unix 3 [ ] STREAM CONNECTED 7453 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7450
unix 3 [ ] STREAM CONNECTED 7447 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7446
unix 3 [ ] STREAM CONNECTED 7441 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7440
unix 3 [ ] STREAM CONNECTED 7437 /tmp/orbit-coolrabbit/linc-b8d-0-cbed3cbc5be1
unix 3 [ ] STREAM CONNECTED 7434
unix 3 [ ] STREAM CONNECTED 7431 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7430
unix 3 [ ] STREAM CONNECTED 7426 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7425
unix 3 [ ] STREAM CONNECTED 7420 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7419
unix 3 [ ] STREAM CONNECTED 7416 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 7415
unix 3 [ ] STREAM CONNECTED 7414 /tmp/orbit-coolrabbit/linc-b8f-0-cbed3cb37005
unix 3 [ ] STREAM CONNECTED 7413
unix 3 [ ] STREAM CONNECTED 7410 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7409
unix 3 [ ] STREAM CONNECTED 7406 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7405
unix 3 [ ] STREAM CONNECTED 7400 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7399
unix 3 [ ] STREAM CONNECTED 7398 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7397
unix 3 [ ] STREAM CONNECTED 7396 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7395
unix 3 [ ] STREAM CONNECTED 7392 /tmp/orbit-coolrabbit/linc-b8b-0-cbed3cbdd5c
unix 3 [ ] STREAM CONNECTED 7391
unix 3 [ ] STREAM CONNECTED 7388 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7387
unix 3 [ ] STREAM CONNECTED 7384 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7383
unix 3 [ ] STREAM CONNECTED 7378 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7377
unix 3 [ ] STREAM CONNECTED 7366 /tmp/.ICE-unix/2829
unix 3 [ ] STREAM CONNECTED 7365
unix 3 [ ] STREAM CONNECTED 7364 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7363
unix 3 [ ] STREAM CONNECTED 7362 /tmp/orbit-coolrabbit/linc-b87-0-1abade3edf29a
unix 3 [ ] STREAM CONNECTED 7361
unix 3 [ ] STREAM CONNECTED 7358 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7357
unix 3 [ ] STREAM CONNECTED 7317 /tmp/orbit-coolrabbit/linc-b60-0-dc25fded6fc3
unix 3 [ ] STREAM CONNECTED 7310
unix 3 [ ] STREAM CONNECTED 7294 /tmp/orbit-coolrabbit/linc-b60-0-dc25fded6fc3
unix 3 [ ] STREAM CONNECTED 7293
unix 3 [ ] STREAM CONNECTED 7292 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7291
unix 3 [ ] STREAM CONNECTED 7284 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7283
unix 3 [ ] STREAM CONNECTED 7223 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7222
unix 3 [ ] STREAM CONNECTED 7205 @/tmp/fam-coolrabbit-
unix 3 [ ] STREAM CONNECTED 7204
unix 3 [ ] STREAM CONNECTED 7191 /tmp/orbit-coolrabbit/linc-b60-0-dc25fded6fc3
unix 3 [ ] STREAM CONNECTED 7190
unix 3 [ ] STREAM CONNECTED 7187 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 7186
unix 3 [ ] STREAM CONNECTED 7181 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 7180
unix 3 [ ] STREAM CONNECTED 7174 /tmp/orbit-coolrabbit/linc-b0d-0-1b6e5c9cb73f6
unix 3 [ ] STREAM CONNECTED 7173
unix 3 [ ] STREAM CONNECTED 7172 /tmp/orbit-coolrabbit/linc-b5e-0-58e1aae8944c5
unix 3 [ ] STREAM CONNECTED 7171
unix 3 [ ] STREAM CONNECTED 7153 /tmp/.esd/socket
unix 3 [ ] STREAM CONNECTED 7152
unix 2 [ ] STREAM 7149
unix 3 [ ] STREAM CONNECTED 7112 /tmp/orbit-coolrabbit/linc-b0d-0-1b6e5c9cb73f6
unix 3 [ ] STREAM CONNECTED 7111
unix 3 [ ] STREAM CONNECTED 7110 /tmp/orbit-coolrabbit/linc-b57-0-3228749089c34
unix 3 [ ] STREAM CONNECTED 6965
unix 2 [ ] DGRAM 6952
unix 3 [ ] STREAM CONNECTED 6946 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 6945
unix 3 [ ] STREAM CONNECTED 6941
unix 3 [ ] STREAM CONNECTED 6940
unix 3 [ ] STREAM CONNECTED 6936 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 6935
unix 3 [ ] STREAM CONNECTED 6924 /tmp/scim-panel-socket:0-coolrabbit
unix 3 [ ] STREAM CONNECTED 6923
unix 3 [ ] STREAM CONNECTED 6918 /tmp/scim-helper-manager-socket-coolrabbit
unix 3 [ ] STREAM CONNECTED 6917
unix 3 [ ] STREAM CONNECTED 6910 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 6909
unix 3 [ ] STREAM CONNECTED 6908 /tmp/scim-socket-frontend-coolrabbit
unix 3 [ ] STREAM CONNECTED 6907
unix 3 [ ] STREAM CONNECTED 6903 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 6902
unix 3 [ ] STREAM CONNECTED 6901 /tmp/scim-socket-frontend-coolrabbit
unix 3 [ ] STREAM CONNECTED 6900
unix 3 [ ] STREAM CONNECTED 6899 /tmp/scim-socket-frontend-coolrabbit
unix 3 [ ] STREAM CONNECTED 6898
unix 3 [ ] STREAM CONNECTED 6764 /tmp/.font-unix/fs7100
unix 3 [ ] STREAM CONNECTED 6763
unix 4 [ ] STREAM CONNECTED 6768 /tmp/.X11-unix/X0
unix 3 [ ] STREAM CONNECTED 6553
unix 3 [ ] STREAM CONNECTED 6049 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 6026
unix 3 [ ] STREAM CONNECTED 5154 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 5153
unix 3 [ ] STREAM CONNECTED 5131
unix 3 [ ] STREAM CONNECTED 5130
unix 2 [ ] DGRAM 5071
unix 2 [ ] DGRAM 4964
unix 2 [ ] DGRAM 4831
unix 2 [ ] DGRAM 4813
unix 2 [ ] DGRAM 4794
unix 2 [ ] DGRAM 4701
unix 2 [ ] DGRAM 4426
unix 3 [ ] STREAM CONNECTED 4370
unix 3 [ ] STREAM CONNECTED 4369
unix 2 [ ] DGRAM 4258
unix 2 [ ] DGRAM 4196
[root@localhost ~]# lsof -i
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
dhclient 1715 root 5u IPv4 4063 UDP *:bootpc
portmap 1798 rpc 3u IPv4 4230 UDP *:sunrpc
portmap 1798 rpc 4u IPv4 4231 TCP *:sunrpc (LISTEN)
rpc.statd 1818 rpcuser 4u IPv4 4273 UDP *:32768
rpc.statd 1818 rpcuser 5u IPv4 4259 UDP *:722
rpc.statd 1818 rpcuser 6u IPv4 4276 TCP *:32769 (LISTEN)
cupsd 1946 root 0u IPv4 4641 TCP localhost.localdomain:ipp (LISTEN)
cupsd 1946 root 2u IPv4 4642 UDP *:ipp
sshd 1980 root 3u IPv6 4668 TCP *:ssh (LISTEN)
sendmail 2041 root 4u IPv4 4795 TCP localhost.localdomain:smtp (LISTEN)
gaim 3125 coolrabbit 12u IPv4 9013 TCP 192.168.0.15:32842->baym-cs107.msgr.hotmail.com:1863 (ESTABLISHED)
skype 3880 coolrabbit 7u IPv4 14735 UDP *:32833
skype 3880 coolrabbit 10u IPv4 13720 UDP localhost.localdomain:32832
skype 3880 coolrabbit 20u IPv4 13722 TCP *:32932 (LISTEN)
skype 3880 coolrabbit 21u IPv4 13723 UDP *:32932
skype 3880 coolrabbit 22u IPv4 23765 TCP 192.168.0.15:33433->flets195-088.sensyu.ne.jp:49363 (ESTABLISHED)
skype 3881 coolrabbit 7u IPv4 14735 UDP *:32833
skype 3881 coolrabbit 10u IPv4 13720 UDP localhost.localdomain:32832
skype 3881 coolrabbit 20u IPv4 13722 TCP *:32932 (LISTEN)
skype 3881 coolrabbit 21u IPv4 13723 UDP *:32932
skype 3881 coolrabbit 22u IPv4 23765 TCP 192.168.0.15:33433->flets195-088.sensyu.ne.jp:49363 (ESTABLISHED)
skype 3904 coolrabbit 7u IPv4 14735 UDP *:32833
skype 3904 coolrabbit 10u IPv4 13720 UDP localhost.localdomain:32832
skype 3904 coolrabbit 20u IPv4 13722 TCP *:32932 (LISTEN)
skype 3904 coolrabbit 21u IPv4 13723 UDP *:32932
skype 3904 coolrabbit 22u IPv4 23765 TCP 192.168.0.15:33433->flets195-088.sensyu.ne.jp:49363 (ESTABLISHED)
skype 3905 coolrabbit 7u IPv4 14735 UDP *:32833
skype 3905 coolrabbit 10u IPv4 13720 UDP localhost.localdomain:32832
skype 3905 coolrabbit 20u IPv4 13722 TCP *:32932 (LISTEN)
skype 3905 coolrabbit 21u IPv4 13723 UDP *:32932
skype 3905 coolrabbit 22u IPv4 23765 TCP 192.168.0.15:33433->flets195-088.sensyu.ne.jp:49363 (ESTABLISHED)
skype 3906 coolrabbit 7u IPv4 14735 UDP *:32833
skype 3906 coolrabbit 10u IPv4 13720 UDP localhost.localdomain:32832
skype 3906 coolrabbit 20u IPv4 13722 TCP *:32932 (LISTEN)
skype 3906 coolrabbit 21u IPv4 13723 UDP *:32932
skype 3906 coolrabbit 22u IPv4 23765 TCP 192.168.0.15:33433->flets195-088.sensyu.ne.jp:49363 (ESTABLISHED)
kinput2 4243 coolrabbit 5u IPv4 20438 TCP *:33417 (LISTEN)

Why is skype using so many ports? Is there an offcial list of ports and corresponding certified servers around the globe?

Boarderguy,

Skype is a peer to peer program. That means that to transfer information between the different people using skype it makes random connections into several different people all using skype, and may change these over time as some people turn off skype, so that the connection can remain constant. Each user can choose what incoming port they'd like to recieve skype on, it's an option in the preferences dialog.

That means that you will often make connections out to to ip addresses you have never seen before, and port numbers you have never seen before. It is therefore not possible to make an official list of port numbers used, sorry.

You should note however that you only have about 2 UDP ports open and listening to the world caused by Skype (which are tcp/udp 32932 and udp 32833). One of these will probably be the port number mentioned in your preferences page, and if you'd like to receive better quality skype when people call you, you can open a port on your external firewall/NAT box to allow traffic to it. This gives people the opportunity to make a direct connection to you, rather than being relayed through another machine which may introduce latency (lag).

Finally if you're really interested in how the protocol works, you might like this protocol analysis:

http://www.cs.columbia.edu/%7Elibrary/TR-r...cucs-039-04.pdf

It explains how there are some common IP addresses you will always connect to, so that your username and password can be verified by centralized skype servers.

I hope this helps with your question...

Mike 5:)