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之前发过一个帖子有关Telus, Shaw 的比较，
1 P0 {$ ]$ x* s4 k0 U, O; u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。8 x# b) A. J ?% c: [9 P& a% [
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Does Telus block any ports? ! O3 q0 \' F9 Q O9 ]6 ^
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The only packages with no blocked ports at this time are the Server packages.
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: t; m( _. c+ s4 a6 P* S8 D: X. IThe Blocked ports currently are:
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0 ?, Y: x( U5 z' }6 H7 j! W7 NTCP 21 (ftp)3 S2 _6 f0 j' `$ q) k
Customers 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./ G" L3 \! p1 d4 ?
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TCP 25 (smtp)
9 r" f5 L( Z9 G% J( cCustomers 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.0 M8 T5 V1 b$ P: _
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TCP 80 (www)6 _: h/ I; g' h/ p6 |
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.
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]0 `( X1 |4 GTCP 110 (pop3)
: C5 z E3 r0 @" [& F4 K3 U3 rCustomers 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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TCP 6667 (ircd)
' F$ S6 d2 [1 t) g% N* NCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server., V3 l! y" L6 i" z
) n3 Z% c( X6 J. b0 m7 X) [; ~TCP/UDP 135-139 (dcom and netbios)2 k- k6 v) \9 r2 a, T
These ports are commonly exploited by worm viruses:
5 f" B. ?% U; f3 s" |' t7 X$ _135 Windows RPC" p, r; a2 v4 m( G- Q. q) P: ^' y
136 PROFILE Naming System (basically unused)
' S5 v! D7 ]7 `4 p2 l, e! l. E4 }137-139 Windows NetBios: G- Q1 P Q" `
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TCP/UDP 445 (ms-ds)
2 M& \6 b' k. B# k. U$ f7 v$ q' HMicrosoft 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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TCP/UDP 1433-1434 (ms-sql)
6 f* I4 p. _9 h P' p1 i6 PMicrosoft 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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狗仔卡
发表于 2009-11-7 17:58
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