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之前发过一个帖子有关Telus, Shaw 的比较,
, T0 I7 l# I, P9 d/ r7 B3 a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? # h' ?: Q- M8 q0 V( T* F
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The only packages with no blocked ports at this time are the Server packages.
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The Blocked ports currently are:9 D& d, S0 k+ L0 @: h; n
5 h/ \8 \, a' U6 JTCP 21 (ftp)1 H% V, P' f* [! ], F
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.* i- H" M4 |5 {" h
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TCP 25 (smtp)
B. E- _& @6 o% b: t# jCustomers 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.7 t+ o, m# p. P, ^1 ]- j6 R4 D- L
1 L$ w; Z5 d. p; f: x2 c( f9 ~TCP 80 (www)! J& D+ D* v1 J! _; R3 [: a" }
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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. e2 ~% v4 t2 U) f' nTCP 110 (pop3)
' q/ A3 H" N0 Z9 ?/ ICustomers 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., \% B* Q7 K! P% C4 W
; y) v! h( ? O/ T2 w) O% YTCP 6667 (ircd); l# x7 D" W- z! d
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.- W [& U% A0 M. S
' M) H" }4 Z* y+ y+ g) _: {& qTCP/UDP 135-139 (dcom and netbios)) q- a; X& R# Z* J
These ports are commonly exploited by worm viruses:3 T1 Q) p, P5 x
135 Windows RPC
& O$ L' f& h4 O4 X# K136 PROFILE Naming System (basically unused)+ g, d& v: n i# x x6 C# V. Y/ J
137-139 Windows NetBios- w& Q4 I0 h1 c/ O0 I% ^
6 \4 W+ _% {; e' bTCP/UDP 445 (ms-ds)
2 `; N" ^! r' g: o8 M7 pMicrosoft 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.! B. i+ ~" L6 }8 v' L' N6 Z
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TCP/UDP 1433-1434 (ms-sql)9 u* q/ H1 O- e# H E
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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