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之前发过一个帖子有关Telus, Shaw 的比较， 6 J. }/ N* l- C( J0 j, M2 p3 U
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. * L$ y6 S3 f9 b6 F6 e6 q, {
* Z6 ]- Y5 W) iThe Blocked ports currently are:& _3 t/ n) m3 J9 ^
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TCP 21 (ftp)
( Z, C0 a- @) g% D, G- K7 qCustomers 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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7 I( U; q/ a& `7 X4 L+ |* PTCP 25 (smtp)" C% N$ b8 t& t8 R9 l/ J( g
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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+ x7 C' z* |. t: I6 a' k9 N$ y7 O* TTCP 80 (www)& a9 Z4 X% S: G0 _' u) B4 U* a N
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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1 R( x# _" ]9 yTCP 110 (pop3)
& H: l1 R/ m3 eCustomers 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)/ H. A3 `! j" R
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server. ~ D6 g0 {7 Y0 k
8 r, ^/ `2 G0 @1 |TCP/UDP 135-139 (dcom and netbios)
7 [! L" z7 E* v! u: DThese ports are commonly exploited by worm viruses:
0 z0 w, Q) s0 v2 L; R3 x9 L2 @( u. I135 Windows RPC5 y2 g3 J: p) ?* p# c E# M4 m
136 PROFILE Naming System (basically unused)$ M# m/ x6 ?& A) f3 }; K: M' ~
137-139 Windows NetBios( H0 ^; }( ^ z% _3 h' X
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TCP/UDP 445 (ms-ds); ?4 E d+ u: s3 `- i. i. \
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.
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TCP/UDP 1433-1434 (ms-sql)
+ F- a2 V5 b8 ~; [, 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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发表于 2009-11-7 17:58
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