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之前发过一个帖子有关Telus, Shaw 的比较，
/ n1 J0 Z/ q! R4 S7 n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。8 ^0 G! _: [2 b Q0 j
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Does Telus block any ports?
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) K5 C4 }% ^0 {$ iThe only packages with no blocked ports at this time are the Server packages.
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! m& `% K+ d9 D# rThe Blocked ports currently are:
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TCP 21 (ftp)# L) N0 N i7 _# E a
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.* ?' B Y/ a6 t% A" u. Y
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TCP 25 (smtp)* [8 ^' t7 ]5 j' A# S
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. F6 T# c: V3 B A0 k3 x& }
. Y* {2 S' L/ q) V$ BTCP 80 (www); |& C! v) C% r& [+ Q V
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# ^; c+ C' |( I5 gCustomers 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.) l5 `6 i4 U( ?9 b- Y1 z3 r9 k
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TCP 6667 (ircd)# A) \2 v) ?3 z2 o/ S
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)
) R0 ]1 \) ` I' RThese ports are commonly exploited by worm viruses:6 q% K/ I% ]$ S! U6 R1 {8 M
135 Windows RPC
+ H8 i0 G5 [( T% g3 p136 PROFILE Naming System (basically unused)
! j' Q2 D) `3 Q& M) ^$ b137-139 Windows NetBios2 k0 q0 w8 Q3 k( x( B
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TCP/UDP 445 (ms-ds)
; ^: K1 i8 N) ?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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1 T, _9 A3 a. d5 JTCP/UDP 1433-1434 (ms-sql)5 ^1 C) s: a. }! i+ V
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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