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之前发过一个帖子有关Telus, Shaw 的比较， 5 I3 T" c; V& [1 Q
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? 6 p. ^; ^& ~: g/ d- ^
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The only packages with no blocked ports at this time are the Server packages. : F Y) B. [) i. B/ Q- m
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The Blocked ports currently are:' v1 _. x& h N! E0 o! K
- q5 T: M/ R( d7 A8 x9 UTCP 21 (ftp)
- Y' ?9 x# Q7 [1 W; {! TCustomers 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.- f& N% u1 M5 \4 ~5 z) `2 f
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TCP 25 (smtp)
1 O, V2 ]! o$ }5 b& O8 Q' D [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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( Z' L, c& d# w# g4 z6 _7 a! r4 [TCP 80 (www)6 X& {& ~) K+ A- m4 E5 Y9 H
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.% F3 |* d; b9 W9 f0 Q1 k/ Y
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TCP 110 (pop3)8 g6 c8 @4 {. s/ ~3 w, V$ B8 A0 l
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.
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TCP 6667 (ircd)3 O5 H4 J: O) \5 h! t. V7 ?
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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0 r) c0 `) U& ~4 }! s, _3 C" v+ {TCP/UDP 135-139 (dcom and netbios)$ k: g7 x' S$ O. ]- ^6 w7 |6 r7 Q
These ports are commonly exploited by worm viruses:# `0 R& [1 _1 @" m; S5 A3 w/ ?6 T/ r
135 Windows RPC
. h; Q0 q2 X& e: r4 d136 PROFILE Naming System (basically unused)) e! _6 ?8 t* a/ ~
137-139 Windows NetBios0 W3 {5 r* B0 n- z0 J
: N n7 i; g: l" R9 @4 \TCP/UDP 445 (ms-ds)
& R2 Q9 P! n# `# q$ w- K6 JMicrosoft 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): ^- Q1 D* h0 m! \/ G1 w7 A
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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发表于 2009-11-7 17:58
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