 鲜花( 87)  鸡蛋( 1)
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之前发过一个帖子有关Telus, Shaw 的比较,
; E+ @9 Q1 `2 w. |/ `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?
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The only packages with no blocked ports at this time are the Server packages.
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0 ^& x8 l0 \" Z' L }3 EThe Blocked ports currently are:
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TCP 21 (ftp)
, Y6 | w2 g x! L/ M/ hCustomers 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.# D- `3 m3 i. Y3 [& [0 _0 W
; z/ b M- d5 \) S) bTCP 25 (smtp)
! c: s4 x4 C: m$ [: X/ m! ?: \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., E0 Y5 l: D) o1 ~: `. p: z
) N' ?6 c9 C2 _* `& H6 b2 I: F HTCP 80 (www)1 _( U' k2 x, [5 Q. N! A
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.& U! d7 T" j5 \; K6 k' _
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TCP 110 (pop3)
. Z; k/ [8 L/ G3 T5 w- Z8 j; A/ WCustomers 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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2 S$ P2 @$ N: f4 I8 ~9 cTCP 6667 (ircd)) R/ F2 _1 ]1 i. e' I W- [
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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6 s; X2 {4 m0 r. [% oTCP/UDP 135-139 (dcom and netbios)* u, c& j: z1 E7 F- X# W2 e
These ports are commonly exploited by worm viruses:5 B! L7 ]! {- {; P8 e+ Q/ |7 T
135 Windows RPC
1 Q- @2 z4 s+ w/ z. p5 m136 PROFILE Naming System (basically unused)# l0 ~* o9 y. W R
137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)
9 z0 r! [ N; Z+ V X" }( RMicrosoft 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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! e. O! Y! j8 y6 i' `* L( aTCP/UDP 1433-1434 (ms-sql)
2 ?) Y" M% _" W; VMicrosoft 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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