 鲜花( 87)  鸡蛋( 1)
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之前发过一个帖子有关Telus, Shaw 的比较,
2 m' m8 W2 X9 X! 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。" ^5 ~3 E, W6 m3 V5 ?
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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.
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The Blocked ports currently are:" U p* h2 z8 {0 ~; E+ u
) U; I5 T; E+ v/ q9 ITCP 21 (ftp)0 c R$ p) d$ H/ k& 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.
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" p8 t! U) V% o" @2 wTCP 25 (smtp)
$ \1 y' C @$ T! o6 ]: wCustomers 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.7 @8 Y5 y. p( s: C
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TCP 80 (www)! d& F7 g* z2 e! m' 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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5 R% Y Y2 v* `4 S8 z) F4 PTCP 110 (pop3)
+ d9 b8 }: D( S: @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.0 X: `# t V0 C& [( X8 S
5 W- O3 M( d% O$ p, J( f" iTCP 6667 (ircd)
: r4 g# z' k* _' b9 {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)
" f! V1 N0 L$ @; s4 S1 pThese ports are commonly exploited by worm viruses:& [1 j4 c4 G0 \2 @' [2 } s! a) ^
135 Windows RPC
~. [" T, n6 d& z% l( P$ l136 PROFILE Naming System (basically unused)% i2 l/ ~3 o& A8 A( s
137-139 Windows NetBios5 H5 @' a. f% g2 V3 e; Y2 `
# E. _8 x) D. s; [/ H b7 OTCP/UDP 445 (ms-ds)- U- O9 E: D; e7 d
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.( x$ ?: B3 h" c& P9 ?
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TCP/UDP 1433-1434 (ms-sql)+ q* H7 F8 x, O, W3 s) ]8 c6 H
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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