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之前发过一个帖子有关Telus, Shaw 的比较， ' u) M! l# o1 S
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。; m* |& k( [8 l F
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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. # J# ^( P6 ]* ~
$ u( i* m( ~$ Y; U& Z n$ qThe Blocked ports currently are:& R' C' X0 H' i
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TCP 21 (ftp)
3 O& J) t' m* p8 U4 VCustomers 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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6 ^4 i% u, ?# r/ E" yTCP 25 (smtp), b* k. I4 n7 v1 D1 [, b$ u3 m
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): A* B x3 S8 k# X) n- 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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2 |; \. i. C, c4 x% B. F8 A5 T7 QTCP 110 (pop3)! X# }: }0 s$ u, U, ^- T
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.
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TCP 6667 (ircd)- j3 z. [4 s8 N0 d) 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)
( b6 g# R. m7 r2 Q2 p2 R* y6 TThese ports are commonly exploited by worm viruses:
$ n, T& J5 L# U7 P135 Windows RPC& G% h# c2 h" n% O: H
136 PROFILE Naming System (basically unused)
( R0 V0 ^) F2 c- c( V. {137-139 Windows NetBios
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1 j0 \. [& M$ u9 f6 jTCP/UDP 445 (ms-ds)
+ I$ n J' ~% n# vMicrosoft 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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( @* }' P" R5 ]' _TCP/UDP 1433-1434 (ms-sql)
( [% s; g1 [+ v! S. h! p4 P9 ]3 rMicrosoft 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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