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之前发过一个帖子有关Telus, Shaw 的比较,
5 `4 G. M$ Y( I3 Z' T: i1 l家用Telus 已经封锁了不少端口。 也随时不通知下说锁就锁, 非常讨厌。
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Does Telus block any ports? # T7 p7 s# m6 W' F
0 j E) G3 y/ u) Q' T# [# xThe only packages with no blocked ports at this time are the Server packages. - q" P0 J1 I0 g6 D. T' }( A3 j
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The Blocked ports currently are:! e! N1 V4 Q* L
# u/ Z0 _/ a8 X" D1 ~! j* ETCP 21 (ftp)
6 ?/ O. X. j1 |& o$ O! y( wCustomers running an FTP server will no longer be able to have Internet users connect to their server. Many customers computers are used as FTP servers to store illegal files.; v5 y1 F4 i; X5 C
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TCP 25 (smtp): ]+ q! q7 w% Z+ x
Customers running a SMTP mail server will no longer be able to receive email requests. Also, Telus users will not be able to connect to non-Telus smtp servers on port 25. Prevent mail servers that operate as an open relay. Open relays are used without a customer?s knowledge to sends millions of pieces of Spam.
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TCP 80 (www)
6 m& k3 r1 i, A% p) `0 ?Customers running a Web server will no longer be able to have Internet users connect to their server. Common exploit on old Window IIS server and Linux boxes that are not properly patched.; M4 j8 V4 X# [1 F3 a- U v
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TCP 110 (pop3): h- r! T: i1 c
Customers running a POP mail server will no longer be able to have Internet users connect to the server. Prevent mail servers that operate as an open relay. Open relays are used without a customer?s knowledge to sends millions of pieces of Spam.. |; x5 S( g/ {
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TCP 6667 (ircd)# [, ]9 K8 H+ ]* H
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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TCP/UDP 135-139 (dcom and netbios). r- v) _/ j/ `' }& h T; l! w- f
These ports are commonly exploited by worm viruses:
4 e4 G* C; w, u. u1 ?4 T! K0 y% y135 Windows RPC6 O+ ]$ k9 C8 x0 M9 j
136 PROFILE Naming System (basically unused)
1 k( t+ q# N, q( G* K0 B1 N1 w137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)
. w/ @) ~4 [: W, ?0 o1 D3 oMicrosoft Directory Services - Customers that allow legitimate Internet users access to their computers will loose this ability. This allows hackers to directly connect to a Windows based computer and gain total control over the OS.
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3 q2 s1 C: N H$ |" @" }$ V7 KTCP/UDP 1433-1434 (ms-sql)
7 ^ \. o; y! K/ R9 IMicrosoft SQL server - Customer running an SQL server will no long be able to have Internet user connect to their server. There are several worm viruses that exploit holes in SQL server. |
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