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之前发过一个帖子有关Telus, Shaw 的比较,
$ ]& ?& F8 v4 ^0 B* D1 Y9 B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。- a9 q( g6 T! N4 j
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Does Telus block any ports?
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8 m# j( S6 u T- _0 D8 {# |3 Z% ~( [The only packages with no blocked ports at this time are the Server packages. 6 t, V9 ?" X, U
: T$ a$ ^# w( }& W1 \" A+ TThe Blocked ports currently are:. y& e" [$ ^6 o1 K# {7 T7 v
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TCP 21 (ftp)
, h/ x; N. v/ z4 i2 h( v0 Z! j" J4 ZCustomers 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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! l+ N* t1 d5 {) mTCP 25 (smtp)
5 G3 d+ I1 i" H XCustomers 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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" D# Y: w& m. r% [3 Z: @3 `4 ]TCP 80 (www)
2 d( [; Q+ h ^! u$ v. lCustomers 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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M6 ?: c+ U7 R d2 mTCP 110 (pop3)( ~/ Y# t0 ?# V; w- _# e$ ^
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)
4 f; u. L# ~7 f* Y( j# {Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.6 P* Q+ A. D) v% j' w8 d# A
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TCP/UDP 135-139 (dcom and netbios)4 S0 V P0 D2 z9 ~2 l
These ports are commonly exploited by worm viruses:) X* v' j- T- Y& w) Y) G: w1 L
135 Windows RPC
* x9 H( s& g' R( X136 PROFILE Naming System (basically unused). Q; Q, T$ ?- W, n
137-139 Windows NetBios' K( g* W; x1 c2 Y e# y# [
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TCP/UDP 445 (ms-ds)$ _. D( u* o0 Q5 U! k
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.9 E& B! W1 j* \, R% K
+ V; ^9 s' Q' C7 ^TCP/UDP 1433-1434 (ms-sql)
6 [8 j( x* G. ]2 U1 yMicrosoft 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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