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之前发过一个帖子有关Telus, Shaw 的比较， ; i) F& {4 J- ^: W Z
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。) K7 @$ @4 x! T4 y3 ~& W
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Does Telus block any ports? % ?% ?, j e3 I; v% f2 y
; s& h L0 I: L5 s# h" jThe only packages with no blocked ports at this time are the Server packages.
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The Blocked ports currently are:
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5 M: w; _3 r3 W) O# bTCP 21 (ftp)6 d1 u3 g: R! ~% |5 o
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.8 h; Y8 M, P* A, v, f+ k* ?! S/ o _
2 L6 d/ H8 S Q/ M+ j+ ]TCP 25 (smtp) D! |8 X. B+ ^6 h3 x8 d
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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' `: P$ Q$ b: {TCP 80 (www)' p% }6 r1 u$ T3 z9 a
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.- F8 b. H# p+ E5 z
0 {% u! U/ W2 i- z1 b, l% OTCP 110 (pop3)
D0 Z: ] v* n$ |% 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.# ?: A$ _- I1 d/ C+ H
4 g0 P1 E( z5 d3 |3 `) S8 lTCP 6667 (ircd)
( T1 L1 h/ J A4 Y2 b, VCustomers 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)
* e' c/ }4 i9 Q# |6 d' jThese ports are commonly exploited by worm viruses:. T9 @) p* a, r7 ^( g
135 Windows RPC
6 U' Z; F- S7 r0 k136 PROFILE Naming System (basically unused)# M; b1 s% u/ [/ j# e' r6 y
137-139 Windows NetBios
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9 w0 `8 l# F4 a. A+ l' s, gTCP/UDP 445 (ms-ds)
" e; |, B0 B" n6 D. gMicrosoft 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)
% |* W V0 Y" T ?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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发表于 2009-11-7 17:58
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