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之前发过一个帖子有关Telus, Shaw 的比较,
9 A: l. }/ y% P7 l2 @* N% h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. / d. _6 Q) Z2 H; i5 J' ~ s
3 i2 K: I% W) KThe Blocked ports currently are:- _4 [2 d/ x. e5 X- |
1 V% S# W0 Z7 i6 M" T" l0 Q6 sTCP 21 (ftp)2 z) S$ Y3 H% {4 e
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.$ H( [& z( y9 p( ] q: n5 Z
7 s9 I' o% }" N$ N% }# ]$ @4 TTCP 25 (smtp)
) U0 Y& d: A4 wCustomers 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.7 Z3 B# f, @# f4 `/ `) e
; j7 }0 t1 q# KTCP 80 (www), O4 j- `, `( C& X
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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+ Q7 ?0 Z5 u5 ]- d3 i) @' a% ETCP 110 (pop3)
7 n8 Z$ Y! ?3 A$ V& j, g. 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)
/ x" L: \- j4 c; ^7 I# w& D' QCustomers 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)
0 N B' e0 |2 E: f$ |7 U5 K9 `These ports are commonly exploited by worm viruses:
& p8 G) x2 } U135 Windows RPC( S/ |; e) A# f' F4 n( \; N
136 PROFILE Naming System (basically unused)
$ C, c7 j9 D7 z, E4 H+ n- W/ }137-139 Windows NetBios1 e o* Q9 X3 c) u
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TCP/UDP 445 (ms-ds). D+ _0 _% {7 e; q$ w5 y- e
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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* v# J0 P4 _ [TCP/UDP 1433-1434 (ms-sql)7 C1 Z9 z; I6 D0 |
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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