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之前发过一个帖子有关Telus, Shaw 的比较， 9 p4 o5 W+ f' {) G/ ]: D
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? ! e* i& c. ]5 o) L
) w/ N6 W' Q9 l% y5 @' DThe only packages with no blocked ports at this time are the Server packages. ; @! [3 h& F. J2 B" f7 j$ B0 g
9 q8 G7 H7 k7 H/ {The Blocked ports currently are:% p, O, Y6 H, U* p5 p. o
' @, c/ h; `; G6 Z* r; a- uTCP 21 (ftp)/ a9 L) K" Z: N* G1 U
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.+ }7 u: [, C- }* @
9 h8 @+ m0 }1 r# H# eTCP 25 (smtp)! h& V$ L- P4 r
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." j9 Y h0 t1 H( x3 d
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TCP 80 (www)1 w! Q2 K7 M# Y; i
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)
# P. d" w) ^3 @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.1 X6 c. f& x9 }5 s4 r9 b
$ |, Q2 O1 ^3 V m& T0 x2 STCP 6667 (ircd)% i; M7 g9 d2 [4 n" \9 K4 T# k( e
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). ^7 ^" B. b+ h7 P, v# B) v
These ports are commonly exploited by worm viruses:( \) p) a V4 E/ Q5 _* w' o7 _
135 Windows RPC2 O! u+ ]% e/ F" |7 z e
136 PROFILE Naming System (basically unused)8 a5 J- i) T3 \$ ^3 Q+ I2 W9 W A
137-139 Windows NetBios+ w; t) G* l3 ^
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TCP/UDP 445 (ms-ds)
9 b& Z7 j* R J+ O/ J1 H; `2 o$ T3 rMicrosoft 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.1 ~5 U7 K2 o2 k! H. g# y( t
/ l+ V) P$ m- G; _( YTCP/UDP 1433-1434 (ms-sql)
# s+ b6 Q4 ]7 JMicrosoft 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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