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之前发过一个帖子有关Telus, Shaw 的比较, 4 q9 A m- G0 B/ i, m' i! {
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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2 p( T$ l. A @* i5 o' n' H+ bThe only packages with no blocked ports at this time are the Server packages. , A# F- @2 d g% y: z2 P3 }
% H$ ]6 ~7 ~1 m/ O/ Q' u" \/ [The Blocked ports currently are:
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* v$ {4 T, ^9 d% P& k7 p$ WTCP 21 (ftp)
; W1 U! x( v" N5 m6 |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.# d/ P# I8 E/ z; E( T
. @* s) I% h; P% X/ c5 F1 jTCP 25 (smtp)
4 t+ r( h2 _* `' G4 Y3 P0 [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.4 F3 v, W* M: C4 I* t' W E
9 s* v$ z0 |' ^3 S6 o: OTCP 80 (www)
( {4 T( R [# q0 Y+ Z" 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.
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: y: l7 `( t f' H6 }TCP 110 (pop3)- i; |, |0 i2 z$ N& ?
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." v( `& M, n; P( ]. Y
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TCP 6667 (ircd)$ E6 E, @8 f C3 \7 n; g8 }" M
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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& w( W( F) k3 dTCP/UDP 135-139 (dcom and netbios)
5 d* k0 P1 e1 V' M( S, {' zThese ports are commonly exploited by worm viruses:
4 }% D, J: ^5 \135 Windows RPC) a2 q6 D8 e, n* _4 s) ~
136 PROFILE Naming System (basically unused)6 h. w, _0 T4 j
137-139 Windows NetBios
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7 W) p- i3 X" |* G; M2 h9 a: k4 ]6 gTCP/UDP 445 (ms-ds)
; u+ y9 }: n4 DMicrosoft 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.5 C2 _7 s3 Z: {# k. a0 L
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TCP/UDP 1433-1434 (ms-sql): |' x( B- ]5 S% p+ r# T7 m3 P
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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