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之前发过一个帖子有关Telus, Shaw 的比较,
7 Q' e+ {4 G" Q9 o$ ^- H M4 F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? 3 S; |4 X8 |/ }7 t. O( K0 ^
% ~6 G7 k0 C8 R! MThe only packages with no blocked ports at this time are the Server packages.
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The Blocked ports currently are:
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, }7 j! q3 g& FTCP 21 (ftp). d- L( s5 w% L/ X: Z
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.
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4 t- h, t3 \1 P( uTCP 25 (smtp)
3 u. L0 i8 c6 ] }+ {; ZCustomers 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)
2 \! z7 G$ p: E$ a( oCustomers 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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* \1 @2 x% s* p( o8 uTCP 110 (pop3)' P5 _7 Z5 F# _+ Z& T! E$ j0 G
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)
2 K+ H- C: V$ {- K+ h$ ^ D3 [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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7 v: Q) Q& I% ^1 ]- ITCP/UDP 135-139 (dcom and netbios)
9 y0 Y4 x9 G4 ?8 Q7 Q* XThese ports are commonly exploited by worm viruses:( W" f( x* ^" U2 a5 w! l
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136 PROFILE Naming System (basically unused)- T2 Q2 a1 p9 S# `( V
137-139 Windows NetBios9 m3 F& j5 N5 Q* l
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TCP/UDP 445 (ms-ds)
, B: x& M! k6 ]/ x% i! H+ z. g, fMicrosoft 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.7 y$ d$ r R) Q, W _) i
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TCP/UDP 1433-1434 (ms-sql)- n+ P1 {* s1 ` C, w% S# |
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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