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之前发过一个帖子有关Telus, Shaw 的比较,
3 T! y4 O; e+ E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.
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; v7 R! q8 H: i& {The Blocked ports currently are:
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) e* M: [6 L9 Y- {8 `% wTCP 21 (ftp)5 s1 Z1 f) H, M# \
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)
% ?6 ?2 ?, l1 M$ D+ u+ I/ TCustomers 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.9 Y" Z! Z" q/ t% }5 _
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TCP 80 (www)) w0 w' R8 y& ~4 u) X
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.* p& b/ k* ^; |( ?' b; h' Y
" f) ^) @* J9 q2 [+ TTCP 110 (pop3)
) c8 I* b8 M3 x2 a, HCustomers 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)
) N. r+ h2 v8 E7 C4 B2 b' H) C Y( yCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.2 K6 }( h# W' j/ T- Z y8 g/ N8 q
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TCP/UDP 135-139 (dcom and netbios)
9 g& b K: t3 j' o9 D6 O; u& x4 LThese ports are commonly exploited by worm viruses:
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& z) l+ a3 x6 a0 y136 PROFILE Naming System (basically unused)& D- R% i$ j7 K( w6 U( H
137-139 Windows NetBios+ X" ] g$ a+ K% T3 l$ v
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TCP/UDP 445 (ms-ds)
) g* {$ B2 b7 j8 FMicrosoft 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.0 G! u. r% W |$ q( @8 _
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TCP/UDP 1433-1434 (ms-sql)/ {4 M8 ^6 T' J- S: a( l5 a3 { t
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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