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之前发过一个帖子有关Telus, Shaw 的比较，
; p# K9 I- H5 I; B6 F, p4 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? " W6 a& |' l3 C: ^' X5 \" F
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The only packages with no blocked ports at this time are the Server packages. 7 Z5 ~( U- e" h8 f1 G! r
) a4 L7 i# j- wThe Blocked ports currently are:
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9 P% F; Q$ \1 d$ i$ }0 V6 QTCP 21 (ftp): b: R, P5 H6 \: i; v+ K
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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TCP 25 (smtp)$ o9 |/ d/ S* m; L% Q& D( j& u! y
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.) }! @9 o& y) W- b
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TCP 80 (www): h G: Z. ^1 p+ 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./ z; x& d# f) o% G( |5 v
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TCP 110 (pop3)
5 v, L |. x. ]' e" `' XCustomers 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.9 W& Z/ @/ g6 Q/ P' z
; G9 ?) a7 x* f' q) ~- K3 [( _TCP 6667 (ircd)* n# Z( q5 r+ V3 `4 _( F+ T
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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' D9 v. J# {1 y ?" r( O& ZTCP/UDP 135-139 (dcom and netbios)
) Q1 C1 [5 `; I- X5 `These ports are commonly exploited by worm viruses:
7 o* Z- T& j" w& [) w0 l135 Windows RPC
& o) T0 y1 G, m% X% a) h: v136 PROFILE Naming System (basically unused)2 b$ ]# p' P% j' ?+ `; R$ t, I7 h
137-139 Windows NetBios
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# q' I0 Z& I0 n7 I3 c9 JTCP/UDP 445 (ms-ds)
' z) H2 N+ [( k1 bMicrosoft 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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& _5 |" ^, Z# x7 nTCP/UDP 1433-1434 (ms-sql). U/ D+ r9 `/ _' 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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狗仔卡
发表于 2009-11-7 17:58
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