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之前发过一个帖子有关Telus, Shaw 的比较,
( ?1 q" L$ S1 A# H9 p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。! h/ V4 o4 |+ L# h; o# `6 n5 i
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Does Telus block any ports? 7 Q8 g6 ^( ^$ a$ r" s2 ]5 Q+ T: h' N
6 d" }$ ]3 k4 K+ VThe only packages with no blocked ports at this time are the Server packages. , M. D' o) l( d. |. h
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The Blocked ports currently are:& h. _) q8 Z+ y1 @2 }
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TCP 21 (ftp)% K" n+ x2 {3 x
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./ Y5 R& {+ R$ h) ^# G7 v6 c
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TCP 25 (smtp)0 K) {- Q: n: M9 a0 q0 g( U1 ^! T
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.
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! c8 }. j; ? n+ p3 wTCP 80 (www)
1 Y* R1 @: Z2 a: T/ U+ Z; a5 ?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.
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0 }0 | |: R* ^9 Y1 VTCP 110 (pop3)! ?& x. u+ X. }% b4 R
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 B T1 H, v7 ~/ R/ I
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.- p% m$ u" Y0 u7 S y1 ^
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TCP/UDP 135-139 (dcom and netbios)5 i$ s- G7 C" }5 f0 P+ ?3 o
These ports are commonly exploited by worm viruses:
/ s3 o C; V& ~: ~9 c) ^135 Windows RPC
2 d6 h2 c: q: b. d4 F K3 u3 \4 t4 D136 PROFILE Naming System (basically unused)
+ o o7 _# \* R* W6 i6 u2 D137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)
" M) h* g4 _# d$ w1 f+ eMicrosoft 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.! F. B# {- V4 X; A8 I' D2 X X
' B( b2 P: k- n u+ l! x6 t6 R8 tTCP/UDP 1433-1434 (ms-sql)
$ G8 d. d4 ?/ C7 _. o5 jMicrosoft 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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