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之前发过一个帖子有关Telus, Shaw 的比较,
1 X& u" y5 @) {8 e- J8 G2 Z8 J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. ! A# `+ b+ D: @5 y, o. @
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The Blocked ports currently are:) T1 s: `$ Y3 q; J2 y
& T; S/ F V5 ]7 {7 e* {6 E* x2 F
TCP 21 (ftp)
. J5 @2 [: 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.- F( Z% u' M; `# _6 ], u0 o' z
$ j# b; t" e! n( H5 PTCP 25 (smtp)* i) u f: S7 H3 j0 P2 D. c7 v
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.- Z1 ]% m' U7 [3 o8 l$ b( q
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TCP 80 (www)/ B i+ T. L2 B! q* C
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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* T6 D" l \3 H/ e8 V3 YTCP 110 (pop3)
1 O9 p& G; y8 H$ cCustomers 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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& d8 p& G. i1 T3 D) g0 X- }- \TCP 6667 (ircd)
/ U# y: W! v+ O3 s- Q4 T2 UCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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1 K% ~$ j2 `/ j/ {( i9 JTCP/UDP 135-139 (dcom and netbios)9 t% P% r% Y2 h9 [
These ports are commonly exploited by worm viruses:
5 e m; x1 y0 Y3 B/ x135 Windows RPC
; _5 K' W0 x6 _9 w4 K7 ~8 n- M8 X136 PROFILE Naming System (basically unused)
F, f! M' S* U$ _137-139 Windows NetBios) g) V% I' a9 }
# D( p2 K& k0 b3 wTCP/UDP 445 (ms-ds)
/ k, z: u& F) d$ ? YMicrosoft 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! g& I# A! ]$ h7 t$ y
! n4 D1 Q1 g' ]5 BTCP/UDP 1433-1434 (ms-sql)6 S2 @5 l T5 w& ?/ H+ w$ _% y: Q& V
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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