 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
0 Z. R7 T* m4 w, h( c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。
9 O2 Y* I1 x+ Y! L8 }$ v5 a+ P# }/ h+ @8 J
Does Telus block any ports?
% }" @, D0 K* M1 o. w: E" ], j8 G% M& D3 B
The only packages with no blocked ports at this time are the Server packages.
$ j7 D$ K2 L, ?$ ~- d/ ]4 ]! R
9 |; o: ?/ X, {6 |! q+ R+ FThe Blocked ports currently are:
: @% O" {0 f5 v/ O: j0 I0 s* [" O
7 f9 X& U, f. yTCP 21 (ftp)& t" W4 E2 O, Q% j" 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.
- N# |/ {6 c% \, G3 T2 `
% I3 l2 e! L! ?7 nTCP 25 (smtp)
2 ~ S2 B5 Z; Y0 ?" b- hCustomers 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.
$ }0 j7 |9 g/ J3 Z' i/ l4 B
$ q$ d' o2 ?6 S4 m: z2 UTCP 80 (www)/ B1 ]( N( t) H, c5 {' J' d, H
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.
! X5 s# ?4 m D, N/ J+ m" {+ h0 Z" S% L- j* |( \6 g4 Y
TCP 110 (pop3)( k. w# X3 @# F8 d+ E7 i9 Y( b
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.
7 x6 Z: Z6 l, `5 U: t9 c) ^, A# Y9 J( V& ]+ F8 m
TCP 6667 (ircd) a1 ]; T1 h. C$ H ~
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
; o8 }8 @- I/ P U+ d9 O# A
6 q9 M8 M# t9 QTCP/UDP 135-139 (dcom and netbios)
0 e3 [4 A; \- V+ N/ _These ports are commonly exploited by worm viruses:# H! r' B3 G& R% O( \4 ~
135 Windows RPC
5 E' f4 f* C, m3 F( i136 PROFILE Naming System (basically unused)# L" _3 ^0 U" p, A. i6 a
137-139 Windows NetBios0 E' M" c8 S! @. h7 `- ^
, j% n6 q5 I7 _
TCP/UDP 445 (ms-ds)
3 y" k" p/ Z j2 M5 E0 G- f5 mMicrosoft 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." a' k/ _3 \ B% d0 s; G: b
7 V. G; d" ~) f. v
TCP/UDP 1433-1434 (ms-sql)
; W# p- c, e$ HMicrosoft 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. |
|