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之前发过一个帖子有关Telus, Shaw 的比较,
! V4 r8 x5 o/ T* g1 O- K7 V @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?
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The only packages with no blocked ports at this time are the Server packages. % m) J7 b/ e* e1 j8 [9 ~* t
; o5 H' l4 T! d8 t5 sThe Blocked ports currently are:
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( C* G1 P& t! f) {TCP 21 (ftp)
+ X5 k# N2 k( H; ?+ tCustomers 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; p. Z0 f5 E% g+ q- } G* p8 p
2 L& }) c, v; f6 u; YTCP 25 (smtp)1 L. j$ j, x( _/ b9 n: L
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.6 Z/ N7 i$ Z1 c
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TCP 80 (www)
2 c# I3 b; ]4 n7 N b7 VCustomers 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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TCP 110 (pop3)* W% e1 O; ^, h; q2 n( ?$ x
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./ U+ V8 i N, A
7 [ ]$ Q) | q- N# ETCP 6667 (ircd)- `% e( d/ A, u- q1 K3 W! w
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)5 G+ M( G# i! e- @2 A
These ports are commonly exploited by worm viruses:
* s& E" n$ m) G135 Windows RPC
* P# m: _( n" N N$ A136 PROFILE Naming System (basically unused)
9 ^' y- P0 ~0 `9 \4 j2 N4 S137-139 Windows NetBios
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3 s7 t1 p$ |' k; k/ iTCP/UDP 445 (ms-ds)
' y0 { @8 A, i; 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.. }1 V8 o" s. q4 N% `) Q9 e
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TCP/UDP 1433-1434 (ms-sql)1 ?3 d9 o/ V- N! M6 G
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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