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之前发过一个帖子有关Telus, Shaw 的比较,
& [/ N1 u/ m$ W! Q7 n1 O7 X/ W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。1 Y: ]/ ]; {0 G4 L. o
$ m. g7 {9 |7 n6 Y2 r- J- U, MDoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. 1 v6 L2 e& g8 b& s$ `& H& p, Q7 n
4 ?/ Q' G" i! t) r' j; L8 ~0 [The Blocked ports currently are:# L1 S K- A9 p- `) T. S0 G
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TCP 21 (ftp)
* e" u$ q. _, Z3 SCustomers 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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' f) I) c0 z6 }- B% G8 r- ATCP 25 (smtp)
6 R5 I) K4 Y) q( C' ~" |& kCustomers 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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1 S6 u: D3 y, f& eTCP 80 (www)
3 c( f9 c$ ^* J4 ]) @5 t; g6 v: zCustomers 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.* `! f) f! B' w
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TCP 110 (pop3)
( i# b% k; l; g, u6 kCustomers 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 Z2 t; ~% j7 _! L
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TCP 6667 (ircd)1 q# f/ k" l ~4 a' J" A% w* S
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.: Y# s# n _& m+ a5 b
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TCP/UDP 135-139 (dcom and netbios)
3 a! g. w6 X+ M9 tThese ports are commonly exploited by worm viruses:
& T. d, {1 h. A5 g# J J135 Windows RPC& A% D6 A/ `; R6 r3 t& H: z/ l' L7 R
136 PROFILE Naming System (basically unused)
& F4 g4 r; a j0 \: F137-139 Windows NetBios- d, W) c( D. z
8 f* |0 f% V9 o8 L: J3 n rTCP/UDP 445 (ms-ds)
6 L8 L3 U$ s3 X0 d4 \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.6 k8 } j+ C* S7 \
m. ^7 I" |' r: X# {3 CTCP/UDP 1433-1434 (ms-sql)
( } g# ~. O! b3 z2 _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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