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之前发过一个帖子有关Telus, Shaw 的比较，
& m: d) \" B O- N# v' q8 ^ x) E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? 5 X( k" [: ?# [! X
# P g! t! a. \2 v/ b7 q/ }The only packages with no blocked ports at this time are the Server packages. & w2 y a) m, V$ T' ^7 }# Y$ I
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The Blocked ports currently are:/ g% {3 _& R0 f, u! k( y3 x
$ s6 ~: u" A2 @# }) lTCP 21 (ftp)) m8 s: X7 B; R+ V, {- n7 }
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. A+ w; G: q! q. b ]
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TCP 25 (smtp)
) t: P' g6 @3 O8 O0 RCustomers 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.; \4 z5 W2 t6 o: |: k
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TCP 80 (www)3 W" l! u+ w1 M* t2 ]1 V) Q
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.6 _1 H* b; P5 y ]3 h* d
/ {1 V; E' i. p, iTCP 110 (pop3)
. v5 Z l) k& ICustomers 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)
! z$ e2 Q+ [2 L7 [9 F7 q0 j- {7 E W! MCustomers 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)
6 V+ L3 ~: `: [: A+ d9 g& iThese ports are commonly exploited by worm viruses:
! Z* H T# ^2 x! P( y135 Windows RPC) V: } A. {( I. M9 r7 \
136 PROFILE Naming System (basically unused)
" r8 T- ?3 {: U8 T3 M) V5 c137-139 Windows NetBios2 H( y+ V; F1 Y- G$ k, V
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TCP/UDP 445 (ms-ds)2 Q0 X$ @) D6 ?* q, n2 U
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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TCP/UDP 1433-1434 (ms-sql)3 D4 T8 r, ]9 A
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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