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之前发过一个帖子有关Telus, Shaw 的比较,
1 i% K3 A9 ]* ^: K- X" b5 ?+ P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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3 M2 F; L4 E; f! h! NThe only packages with no blocked ports at this time are the Server packages.
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The Blocked ports currently are:: L" d# \2 k1 v. y, m1 e
, o$ S% M6 h& j' S8 oTCP 21 (ftp)
: Z2 H1 i. D- H3 g2 b YCustomers 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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2 z7 f% t" Q n0 ` W2 p( ?8 B: RTCP 25 (smtp)
) e L3 T. s0 b/ f. Y% OCustomers 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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9 m0 U4 ]% `$ t9 iTCP 80 (www)! L$ @) K' F# v: Y
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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; I: d7 Z9 |' { e0 t- PTCP 110 (pop3)
! Y$ E6 i- y, A( h3 KCustomers 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./ {* h. t0 _3 p0 N
$ c! K/ d1 ~! k; A: Q+ w1 rTCP 6667 (ircd): l8 M. N5 C B' o/ j6 Z
Customers 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)8 F: E6 M5 i; ~( a
These ports are commonly exploited by worm viruses:
) n( ?( V! Z4 j) @# x135 Windows RPC" t( F9 Q/ A2 }, B3 J- o( U; M/ [1 t5 k
136 PROFILE Naming System (basically unused) }- T( \; S4 W
137-139 Windows NetBios; x$ U8 a2 c( y1 M* M& u
" k+ d* \4 J9 T- s7 C! W* C$ a, |7 ^TCP/UDP 445 (ms-ds)
0 Q- Z8 _5 t# x0 W3 }6 {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.
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4 \/ K8 |) j" C: A5 F) [TCP/UDP 1433-1434 (ms-sql)/ Y R, @" W2 f
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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