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之前发过一个帖子有关Telus, Shaw 的比较，
1 n) ^0 @6 A. u9 L) r: @8 t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。' q) Q% K* L5 J3 j k
2 N% S; z/ Q7 h7 Y$ R% J4 LDoes Telus block any ports?
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/ r& F9 c/ U6 a, O3 p* KThe only packages with no blocked ports at this time are the Server packages. 0 z+ I' ]; K% N
7 g8 `7 V# R$ d, n1 B9 cThe Blocked ports currently are:4 E1 t* p+ Y; b* `9 k& t0 k
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TCP 21 (ftp)
* k0 z/ _& }0 }2 j2 [ C7 y; D' SCustomers 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.& d2 `8 M) [+ Q% O
7 k% F* ^& r# a9 YTCP 25 (smtp)2 M+ T# I. E& {0 f
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./ r6 f7 d, p0 c/ B" E1 [+ m
% e; V( j/ s# x+ S' |5 ZTCP 80 (www)
3 y) {8 o: n: D' F1 v& o- o- NCustomers 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.: T E7 {- H! ^# ?" s3 m8 f* R
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TCP 110 (pop3). A" e* G) i+ S) O! b% R
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.; p& U |6 s$ a
; ~" |9 Z: i4 a. ^TCP 6667 (ircd)) `$ h' f' m; F) L! N4 \3 ]( {
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.# B! [% ~" [! F, j
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TCP/UDP 135-139 (dcom and netbios)6 `! W+ { A/ k& \- d+ U
These ports are commonly exploited by worm viruses:
9 J, ]' \5 T: p3 x7 t& _135 Windows RPC
9 _0 J2 C8 i' p6 {- G136 PROFILE Naming System (basically unused)" }1 d+ D$ |+ a5 S& T+ L
137-139 Windows NetBios5 m& e& S" G4 g V) I2 Q$ J( c/ H
t. \9 l7 `, k4 v- `2 sTCP/UDP 445 (ms-ds)
$ P# Q5 w0 k8 Q9 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.$ b: X7 F5 p! p9 N
e d/ I3 R9 G; r" OTCP/UDP 1433-1434 (ms-sql)8 z J3 e* p- G- ] r
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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