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之前发过一个帖子有关Telus, Shaw 的比较，
& @* _$ g6 C; v5 b8 W+ @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。/ m- y1 m* b7 M+ L. a! J0 {5 N
+ F$ X' X4 S! o2 v! w( k/ ADoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. " M; R" t7 d; \8 X
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The Blocked ports currently are:
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3 `" _7 H& P! J- G* V* L- tTCP 21 (ftp)1 x- t3 h! w/ R6 r
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.
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TCP 25 (smtp)9 R; i- f8 B6 e' A
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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TCP 80 (www)- C* b2 J9 v N1 U" h
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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TCP 110 (pop3)' i' Q- M2 e- @4 H* c0 d+ e5 m
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.8 G2 k0 I% H& Q/ D+ U! j9 ?4 u
8 w2 y- M: Q6 qTCP 6667 (ircd)
- i2 [) w1 A* BCustomers 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)& [' z" j) y! y2 p$ x$ r/ Q2 e
These ports are commonly exploited by worm viruses:8 ~2 o! F% X( K9 O+ ^: U
135 Windows RPC
5 Q$ `: m: D' J- ^136 PROFILE Naming System (basically unused)
$ C: h! D: U8 Y8 s' ?# [137-139 Windows NetBios8 J0 T( T3 c3 o% B
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TCP/UDP 445 (ms-ds)
! _ _7 W1 d( t& b8 jMicrosoft 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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4 \* R8 E9 |0 ^2 v/ wTCP/UDP 1433-1434 (ms-sql). c$ V) W3 M: T! x4 u- m, D# w
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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狗仔卡
发表于 2009-11-7 17:58
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