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之前发过一个帖子有关Telus, Shaw 的比较,
1 U4 r' m# M: i# J# C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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The only packages with no blocked ports at this time are the Server packages. ! X- K2 ~, ^* b0 y$ J l; J
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The Blocked ports currently are:; [ A, o; Q# {3 d6 P
) N! o$ g) K1 q! V/ WTCP 21 (ftp)
; x( u: w. q" Z: D4 W/ ACustomers 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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7 X# H4 Q. v' }# o/ A/ g7 |TCP 25 (smtp)
* o4 }2 b/ Y7 v6 ]9 K. u ACustomers 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.) g& A! `: \9 h
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TCP 80 (www)
; r( [) x2 q" F \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)
' C8 N+ f. [8 D( u) p2 c9 ^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)
. e3 m' n5 R4 o4 ]2 k8 ^; F; FCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.& `4 V5 U: F( [; [
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TCP/UDP 135-139 (dcom and netbios)
# h3 k$ N/ u3 h5 n, ^These ports are commonly exploited by worm viruses:
5 _: s+ I; F1 t& N( n i. Y135 Windows RPC& k. F( V6 K; K* V
136 PROFILE Naming System (basically unused)8 d3 |$ L9 X/ Q$ F
137-139 Windows NetBios( h I: R5 y* Y/ H& N- b1 \! Q
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TCP/UDP 445 (ms-ds)
5 z; b) Q/ ~7 a8 @3 @3 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 P# T! w' r( k
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TCP/UDP 1433-1434 (ms-sql)6 t! \6 G6 b7 U$ c+ L
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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