About Windows2000 TCP and UDP ports,what's those ports working for?

[alixiang]

Hello everyone:
When Windows 2000 running,it was listning some TCP and UDP ports.I know about TCP 135,139 and 445,but most of them were mystification.
They are:
TCP:1025,1057,1079,1081,1093,1096,1098,1100,1101,1103,1104,
1105,1106,1108,1109,1111,1112,1113,1115,1117,1119,1120,1121,
1122,1123,1124,1141,1150,1152,1156,1158,1159,1162,1164,1165,
1166,1167,1168,1170,1171,1173,1176,1179,1180,1181,1183,1184,
1186,1190,1194,1196,1198,1199,1200,1201,1202,1203,1205,1208,
1209,1210,1211,1212,1213,1214,1215,1216,1218,1220,1221,1222,
1223,1224,1226,1228,1229,1230,1231,1232,1233,1234,1235,1237.

UDP:1026,1027.1028,1030,1040,1041,1045,1056,1058,1069,1070,
1077,1078,1091,1095,1097,1099,1102,1107,1110,1114,1116,1125,
1138,1140,1142,1151,1153,1154,1157,1160,1161,1163,1169,1172,
1174,1175,1182,1185,1189,1191,1195,1197,1204,1206,1225,1227.


They are all listening by process System(id 8).My windows 2000 is professional edition.After system started,these ports are opened.Please anyone tell me whats these ports for, or any reference.
Thanks!

 

[MattWray]

Here is a link for well-known ports...

http://www.networksorcery.com/enp/protocol/ip/ports00000.htm

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

 

[alixiang]

Thanks for your infomation.Could you tell me why the System process listening those ports?I'v not installed any network service in my system.

Best regard!
Alixiang