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之前发过一个帖子有关Telus, Shaw 的比较,
$ o+ k# \& k, w( c N2 m2 `8 d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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5 u- C! W0 s0 gDoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. 0 Z- w# [( S' P5 s- o/ _
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The Blocked ports currently are:
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# \2 ^+ Q* v" X! a! v3 B. F# TTCP 21 (ftp)
4 z( R% j0 N9 P* J5 v! n) \, LCustomers 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)
9 l& S$ H. g9 }6 D) s8 C& k( kCustomers 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.0 P5 W- Q$ b" e$ c) X7 e9 w& c8 d
: p( a# V* V5 n& r0 ~7 C yTCP 80 (www)
. U: t% l" r# M7 P5 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.3 Z6 M) H- n; y4 Y* v: _1 X$ @
! G5 M4 W4 k7 R7 hTCP 110 (pop3)
+ P+ q6 Q5 i) ZCustomers 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; o. V( T0 Z4 s1 B0 Z
5 k1 f# H9 n; |* v7 x3 p0 e% rTCP 6667 (ircd)
* F% j& @9 z# A/ O# G9 \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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TCP/UDP 135-139 (dcom and netbios)
; m5 p9 {/ o5 `' CThese ports are commonly exploited by worm viruses: e, c& Z% ?$ ?) D) [
135 Windows RPC
; q/ E% F& l" w I1 R2 s L& k136 PROFILE Naming System (basically unused); K, V4 e% l$ z. L$ _: D
137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)+ T! G3 e. s I4 {7 F# w
Microsoft 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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F I* a8 D8 O4 WTCP/UDP 1433-1434 (ms-sql)
2 t8 D) T( j" ^& V3 S, E* fMicrosoft 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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