 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 8 f# A O1 D8 h: Z1 o
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。; }( { {) d$ p* U# @+ W
( c$ y6 I9 @1 q' o# j
Does Telus block any ports? 7 L" _- N, P7 s6 g
5 _2 @8 |0 _2 \The only packages with no blocked ports at this time are the Server packages.
! g; e# ?/ ]9 S+ Y' b1 G: [. |
3 |+ A, T$ U4 r m' I/ M$ LThe Blocked ports currently are:
$ ?- K6 P0 H( k" ?4 v8 O0 N- ]. K9 ?# |% @" `8 T" y' M' ?
TCP 21 (ftp)
- ^ E+ u s4 [3 A: a2 v' \3 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.
) x; }# P Y- c' }' O+ [ y
2 |$ e \6 M' s0 a' x# O) g' ?TCP 25 (smtp)( V, O3 w; Q# X. w$ Y6 A9 B# q
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.. I! l7 t2 o W* n7 K* L; I; o
5 ~' F @8 ^+ _TCP 80 (www)) t7 Z& _! R9 W' _: z$ }$ _( R* Q' F
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.
5 U" j3 o; { C8 x2 o% u4 \
- P0 L9 N+ x3 q |TCP 110 (pop3)( x3 k! x' E& G. ~6 u( X' [& p9 t6 M
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.
" ^1 g" ?3 m% M# b2 v. |. K" T2 F* ?. @
TCP 6667 (ircd)
* p) W2 X5 e7 s! K" XCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.( H' ~( y& }4 x# P/ A. f5 D0 e* Y
. B8 ?/ J( v: u1 Z
TCP/UDP 135-139 (dcom and netbios)9 z: j; E L& t
These ports are commonly exploited by worm viruses:
# G H0 \. L6 j135 Windows RPC
7 @$ n$ [: ^6 P4 b- m; g4 \136 PROFILE Naming System (basically unused) ~5 R7 B8 ~! L3 M/ j
137-139 Windows NetBios- q' g* j* I0 P6 Z Z6 n
" E; N' Q7 Y, c3 E& V* iTCP/UDP 445 (ms-ds)# o- w" T8 _6 u6 u7 X" |
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$ `- m1 r; n2 L4 u( Q. X
3 z3 C) p. g5 u* J {& UTCP/UDP 1433-1434 (ms-sql)
% r3 C$ P7 y& Q$ p9 W$ qMicrosoft 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. |
|