 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
4 G. i8 U+ \ i! z) Y% \# _9 n. B8 n8 \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。4 N! m! F' ]8 n/ a/ Z
+ B; I R0 L7 | {! c5 MDoes Telus block any ports? ' Y- o0 x9 p; |
- f2 q2 i( O7 R. |( H$ \7 v7 i! |
The only packages with no blocked ports at this time are the Server packages.
( x+ C! K$ c2 s0 d% V$ T4 Z" I! e# x8 _( U0 S0 @
The Blocked ports currently are:
# K4 E% m) h# ~; r$ u9 X+ l5 S& c. _0 u
TCP 21 (ftp)
$ w# h: I2 P* o" s- p) ?* i; KCustomers 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.
' b* ^1 H0 ~7 q" G
; S1 O! F. V, ~7 k; q! jTCP 25 (smtp)) E& F) E3 ~, h+ n* q" d, l9 ?
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., h2 [" w I; N0 I- }# H, S
5 ^( B/ A4 W+ n% i7 i' Q# o
TCP 80 (www)
& K8 g3 D: |5 t6 j7 l3 | VCustomers 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.
, ~" {5 W; [4 }, c" M
. b1 u2 V% [; H; p" xTCP 110 (pop3)7 _5 l6 q4 Q3 o/ F6 w- E
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.
3 k! O1 A5 J; U% k7 d, w: A/ ]) d$ Z' c! Z$ U
TCP 6667 (ircd)
7 x* r% N" ~7 W0 t3 S* G" X' VCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.% a. f. E2 ^ ]: N8 k) J, y; i$ P. F
6 j% f4 Z0 x1 `: D. H
TCP/UDP 135-139 (dcom and netbios)
1 D. j* b1 @! I) d( CThese ports are commonly exploited by worm viruses:
/ a+ o4 M) R2 J135 Windows RPC
) d: G, i* x4 _% ]5 t/ U/ [136 PROFILE Naming System (basically unused)
. H3 i5 @" b! T137-139 Windows NetBios9 z7 M. y; Z. D4 N
% K% j4 t8 d* c' T5 p7 U5 t8 G
TCP/UDP 445 (ms-ds)
) _, X- [; G! ~! k kMicrosoft 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." m: y. V5 d n! d4 v8 ~
% M* y. U0 q, `- LTCP/UDP 1433-1434 (ms-sql)
/ |- ^: e0 F3 ^. j/ v$ d, Y) sMicrosoft 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. |
|