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之前发过一个帖子有关Telus, Shaw 的比较， 3 U/ m* R6 c0 ?
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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$ {+ S( |& v2 B- aDoes Telus block any ports?
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& @' w% b, I% S* G, ^. l3 j: ^The only packages with no blocked ports at this time are the Server packages. 7 b& E( w: q ]' n7 n
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The Blocked ports currently are:6 q6 H4 j0 g; l3 R
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TCP 21 (ftp); U6 V2 f# X$ h% a$ R9 o
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 b( I3 a; ?% ]7 T5 q& }# u
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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5 o* A/ Y+ b& KTCP 80 (www)
! S4 S1 \ I8 I& y4 W/ [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)
2 i1 g$ q5 v$ F# fCustomers 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.) x2 V/ H& ^' @, v
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TCP 6667 (ircd), A' ~& h9 ^4 e8 U% `% \8 f
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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# m7 T' z |" R2 Z/ }! @TCP/UDP 135-139 (dcom and netbios)" B! d: E( p! Q7 R
These ports are commonly exploited by worm viruses:: k% w: f$ O7 ~& c$ S+ X; d8 h( }; J
135 Windows RPC( R2 r# {6 c, `1 i: N% |
136 PROFILE Naming System (basically unused)
) o8 r( L7 D. W! N: K3 `137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)
8 h* G3 Y; q/ [+ o. o( @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)! O. E" K- B2 D' k& H: |
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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