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之前发过一个帖子有关Telus, Shaw 的比较,
5 B, \. B* h9 m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。( f; h5 Y j$ [3 Z
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Does Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. 8 j! x. H, ?6 G, \, O" I
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The Blocked ports currently are:
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; l" d: C6 w$ p2 Z. ETCP 21 (ftp)
8 a$ P1 Z) t& Z8 S* k, aCustomers 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.; V7 a5 v) ~: K M- B$ f
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TCP 25 (smtp)
, C1 X$ H3 s9 a& w' ^4 D7 ECustomers 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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$ G; C5 C2 m5 ^) Z4 w. j* S' {4 pTCP 80 (www)
! M, H* H6 [/ v9 |6 wCustomers 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.2 F* o# F$ e" B
4 A7 f$ m0 @ \) `TCP 110 (pop3)
7 G1 c2 j1 L+ f4 f1 q1 n" l' yCustomers 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.
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1 l( t4 x2 B* }" pTCP 6667 (ircd)
$ f2 I+ {- E2 i8 iCustomers 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)
- W H" T. A8 f, @8 ^: SThese ports are commonly exploited by worm viruses:
, o* [9 h% d; q/ l! D4 {+ c x135 Windows RPC
, \" b' D/ V. V# H0 P, M136 PROFILE Naming System (basically unused)
% N& U, |- ~8 }. P9 h137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)0 q/ I- h5 @6 m1 [' d/ b/ L3 }6 [
Microsoft 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.0 g8 |' w, I2 l1 y/ G( W' R
# O5 N) Y6 L4 e( t: O6 Z, STCP/UDP 1433-1434 (ms-sql): w: B8 y: f! b: {
Microsoft 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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