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之前发过一个帖子有关Telus, Shaw 的比较,
$ A e: _. n9 B4 x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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5 [+ u: t# i# u" o4 Z0 NDoes Telus block any ports? z) ?! i, t" l, h' F8 ~& V
- \ Z+ B8 h8 ^6 s+ ^. P% r" JThe only packages with no blocked ports at this time are the Server packages. ; H) @, x8 I8 t
2 @+ o! o& m. VThe Blocked ports currently are:& G) f! q8 { Q$ `# W% S9 q+ S
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TCP 21 (ftp)4 e% i$ _( Y- _4 ?! Z
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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9 t, Q7 Y6 V6 J: j v, cTCP 25 (smtp)
! ~8 L0 m$ {7 g: l* p+ S2 ACustomers 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 k" q% b, w8 ~1 h
1 C6 A- D! a% O- `TCP 80 (www)
3 d _$ h d; a# M4 MCustomers 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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8 C: V$ Y9 _: [: ITCP 110 (pop3)
3 y3 W( B# l; ?2 \' B0 ~6 d9 qCustomers 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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7 n. A' I( b' |' g+ C8 ?TCP 6667 (ircd)
0 S) e# I( H% J# dCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.# }$ U# {$ l0 A, v2 [
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TCP/UDP 135-139 (dcom and netbios)
j# w' P1 W2 b; SThese ports are commonly exploited by worm viruses:
) x1 T0 I+ @; ~& s/ `9 c/ l135 Windows RPC
$ v& ] h; U. F6 Y" h: z136 PROFILE Naming System (basically unused)
3 [( u" I0 ]' W/ m137-139 Windows NetBios
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! s( ]7 M ^+ ~1 h: I0 R. A8 J% zTCP/UDP 445 (ms-ds)
% z( b6 |) p8 ~0 T1 a- N. f# YMicrosoft 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.9 B" t/ o) R2 o% _
" }: c w/ F2 K) s8 kTCP/UDP 1433-1434 (ms-sql): K4 I" o( Z+ k2 s7 b
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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