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之前发过一个帖子有关Telus, Shaw 的比较,
9 L& o7 ^* d+ m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. 3 n$ J# D3 R/ F: k- V
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The Blocked ports currently are:' d* j$ h$ U3 m3 P) l5 Z
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TCP 21 (ftp); |/ ~: g2 R% F4 y) B3 w
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)
4 X( F) {! j3 T$ H0 S& xCustomers 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.' d; Y" N6 U& t. ]5 }/ z
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TCP 80 (www)0 p( c7 m: C- g# l; z
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.9 Y/ ~# X: {" x" g) E! J
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TCP 110 (pop3)" Z0 e; s( p7 K, f0 c7 W2 S
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.0 d) {0 i3 H& b" x
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TCP 6667 (ircd)2 ^2 m& m/ m. Q& h6 C9 x
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.) P4 E% C+ R5 S
4 q6 ^; k- \( V/ z% ?4 o( `) pTCP/UDP 135-139 (dcom and netbios)
6 w6 l) A8 o+ F$ f1 b# IThese ports are commonly exploited by worm viruses:
$ C/ w/ J T9 L+ n. H5 S135 Windows RPC
0 G5 U: j, v; G, k4 l136 PROFILE Naming System (basically unused)
( B7 |4 r# S/ Z7 }9 l137-139 Windows NetBios2 Z1 A: I3 l/ t' R' J; s2 z
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TCP/UDP 445 (ms-ds)
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) Z9 ^6 f& k4 n# TTCP/UDP 1433-1434 (ms-sql)9 J6 ~/ v8 d, }: P: F
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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