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之前发过一个帖子有关Telus, Shaw 的比较， 5 C! e7 c8 k) b) 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。( R& n: u C7 ~ A1 l/ F" M, O
6 j, X9 U: J2 b A/ ]Does Telus block any ports?
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: K$ M5 L2 l( MThe only packages with no blocked ports at this time are the Server packages. 3 N, W7 L4 r+ H% H( K$ C( c0 E) G3 Q
3 n" Z6 ?3 @. ]! g: |The Blocked ports currently are:
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4 S3 d* ^/ \+ }/ z( q1 i/ H: \TCP 21 (ftp)1 A$ Q7 K5 I. J1 N
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./ @+ v' W" b4 ~6 J( o
+ w6 |3 O# w5 [0 A' m# nTCP 25 (smtp)
) w3 Y1 p- O8 VCustomers 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: p1 X, d% V! m6 G
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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TCP 110 (pop3)1 v2 a0 i+ ]& r2 @" ~ R
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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& P( Q G+ t6 G: \TCP 6667 (ircd)
! d- j, m9 \: U" rCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.& G3 U6 d b" q: R
6 i0 q- u7 S1 \- }TCP/UDP 135-139 (dcom and netbios)
, f) W+ ?( [: ~! zThese ports are commonly exploited by worm viruses:
4 Y8 f- t9 d: D( ?6 L135 Windows RPC6 f4 E& q* B" k2 X( ]
136 PROFILE Naming System (basically unused)0 o- @3 {4 D$ Y8 I
137-139 Windows NetBios3 d- w% n6 f9 }
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TCP/UDP 445 (ms-ds)
6 l( U( i6 @ h' {) m5 O2 u% lMicrosoft 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)
5 P; z) P+ 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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狗仔卡
发表于 2009-11-7 17:58
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