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之前发过一个帖子有关Telus, Shaw 的比较， " G% @9 j/ {+ Y; c. L! \, 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。
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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. ; p) P6 n0 c8 r8 {
' y: i4 R" A+ UThe Blocked ports currently are:
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TCP 21 (ftp)& h, p' ~ F- }5 o
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)9 _. r! P3 L3 ? m( ^$ x& O3 q
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.
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TCP 80 (www)5 c5 O2 l) x6 X u
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.
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TCP 110 (pop3)9 A/ P+ Q) B, K2 \4 ~* Z! j% {
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., M4 n8 N l- u8 ?' E
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TCP 6667 (ircd)
7 {. |' g# |3 m0 V) Z. H, u% qCustomers 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)" R# u! S" S. c8 r4 ?
These ports are commonly exploited by worm viruses:
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136 PROFILE Naming System (basically unused)
! C, d4 n S7 f6 f8 l137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)' V5 _$ q F7 M* J ^
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.0 I5 G7 }9 M+ h$ Q" ~) i2 \
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TCP/UDP 1433-1434 (ms-sql). G: k% _3 x( a0 X! Z
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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狗仔卡
发表于 2009-11-7 17:58
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