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之前发过一个帖子有关Telus, Shaw 的比较, 7 {/ ] F2 @7 ], D) L) K0 T
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。. {9 L. S" _* u( C
* p) b' p4 K$ o3 f1 Q1 F# t2 PDoes Telus block any ports? 3 V* T: f' t0 Y/ o! M) r
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The only packages with no blocked ports at this time are the Server packages. ) G6 Q+ {9 F; D5 o. D* @$ o
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The Blocked ports currently are:' x' f1 O2 \+ h6 B9 j
% X2 J, y9 K; V/ J( ]TCP 21 (ftp). n d/ [* O2 \2 F! `8 g+ `* f
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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/ h) J4 z5 Y5 o. L0 u! ITCP 25 (smtp)
8 z9 x1 s, S2 B7 }( g. y, M! rCustomers 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.+ n# |: M; v' f9 O( K
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TCP 80 (www)
$ y4 f8 ^1 r$ t- rCustomers 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." k* c. D; y" d% o8 J2 q5 D, P
0 q3 b. v0 [8 bTCP 110 (pop3)" y! q' X9 _- R, h1 c, k
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.
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TCP 6667 (ircd)
! p0 B2 [8 g* r' X. W: C" zCustomers 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); J9 t2 ?- ?+ A# J6 Q0 |; m
These ports are commonly exploited by worm viruses:
. |. q6 \5 x( x7 X7 M& l: }. [* O" n0 o135 Windows RPC- {8 f% f8 [" ]( }5 k! f6 z& s
136 PROFILE Naming System (basically unused)
% `; D/ E2 J# z137-139 Windows NetBios
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' X7 }8 W! w5 E0 @' L' sTCP/UDP 445 (ms-ds)* I: z& S6 [: R4 u3 B
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.2 c/ e; M# t( G
, H5 J2 f9 ?( |3 Q* B0 |- g+ dTCP/UDP 1433-1434 (ms-sql)
# l+ m; `0 w/ V, v4 K( I, f# wMicrosoft 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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