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之前发过一个帖子有关Telus, Shaw 的比较,
( d7 d" r0 D& f7 c! o# `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。4 j9 t [$ R1 J; B/ z1 g3 U7 l
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Does Telus block any ports? " o" ? f+ ]* u5 V9 K
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The only packages with no blocked ports at this time are the Server packages.
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) d& N$ d0 f6 f; sThe Blocked ports currently are:; _" Q1 s1 i$ Z+ m x
+ w" [6 b3 k9 r U' r% WTCP 21 (ftp)4 c$ u: I6 R3 @( P$ \
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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- L% w+ k& R* f6 ?& {! b; U- T6 |5 G8 HTCP 25 (smtp)( O& v' K" d- E7 G% k" ?
Customers 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.1 ]' F7 L& ]* N1 i1 `
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TCP 80 (www)1 B% H) O2 Q5 Y" ?, d* {' E
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.% Z. M0 \1 V. ]$ [+ k9 O
5 K. e6 A# T1 p$ X) o/ z) p& XTCP 110 (pop3)
+ x. W4 T+ e) F9 r; Y4 P/ {. \2 w/ 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), Z1 [* l4 J0 J! q
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.* E j! Y0 S" e# r( d% s
6 t% t* f- y2 t: m" H. PTCP/UDP 135-139 (dcom and netbios)
: y& V# a. `9 ~% a9 IThese ports are commonly exploited by worm viruses:
6 V, ]2 k7 R' X5 O) R135 Windows RPC
) t5 O5 A3 n' V7 t" p136 PROFILE Naming System (basically unused): ~! w A' t; I+ Z- h) {
137-139 Windows NetBios2 f: v& b( _9 W# ~& N# s& S. y/ R
( J1 e/ D7 I# ]TCP/UDP 445 (ms-ds)
: ^% v. W' K! ~0 BMicrosoft 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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( U8 R/ U9 _0 x0 C# J8 x9 dTCP/UDP 1433-1434 (ms-sql)8 X8 N) q7 P e5 |/ T/ i8 ?3 S9 q
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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