 鲜花( 87)  鸡蛋( 1)
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之前发过一个帖子有关Telus, Shaw 的比较， % ^9 C+ W6 ~: ~
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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! k9 B, f; S1 @Does Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. 1 r3 X \! X0 E* O
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The Blocked ports currently are:
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TCP 21 (ftp)* F E" s( ?5 O- R% a6 e4 t5 d
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.$ n4 K0 ]2 p, z/ U: N
5 ?$ C: V& g. |: x0 N) Y# A8 T% iTCP 25 (smtp)
) F2 ?& K8 X" Q3 E; YCustomers 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 |7 } H8 W' A2 Q
8 V3 z5 ~3 K" PTCP 80 (www)
9 P- i2 f$ R- D0 y+ Q, V# tCustomers 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) }1 D* q ?" r# ], Q1 a* q
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)9 K2 g" s2 i% m7 o/ ~
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)$ ^, E4 K h2 x7 D6 [% p' e
These ports are commonly exploited by worm viruses:
7 [9 B1 C/ m- B5 {& N135 Windows RPC
3 j5 u5 Z8 j# H* S9 B" Z136 PROFILE Naming System (basically unused)
' p3 e: J. z4 ]& v, [0 e137-139 Windows NetBios% l/ m& c: n8 i. F
* J, \8 P9 \) I0 c8 G6 U3 sTCP/UDP 445 (ms-ds)
* ^/ J n3 M. W6 hMicrosoft 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)- m/ n* O1 S- ^' ~. w1 X
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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