 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
( L9 e. w; I9 R9 @$ H' o. q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。. m' F2 t; B* J% `) y: U; h- x
9 Q0 F- x! p; UDoes Telus block any ports?
4 x% f* Z, }% [: _% B2 ?) D
" T, E4 u8 f# j" q/ vThe only packages with no blocked ports at this time are the Server packages.
7 ~# `3 \: z4 O5 q1 o( R) s; Q' I. j$ O: `
The Blocked ports currently are:$ S7 a$ e/ h, Q& B
0 ?1 v* H1 [ p! p% Z2 Q, nTCP 21 (ftp)
: \" A# ?' |. h4 u3 d" z: v: yCustomers 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.% {8 k/ y$ c- y( x4 V6 ? r! ?/ N8 n
# |% @& q2 ^+ D! ?& I: Y, ^TCP 25 (smtp)5 C X2 y3 B( e
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.1 U) A! Q; J5 l' I9 Z+ H
3 k% }1 C( V: M# w9 h
TCP 80 (www)
L5 z( P) s6 v' pCustomers 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& I* M1 M* k6 m( ?
, z6 ?8 H! Q3 p M9 dTCP 110 (pop3) l6 M0 h* j. O
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.2 G5 o5 d4 y5 b7 M6 @
) b. c3 v* {' X: |
TCP 6667 (ircd)0 I- ^4 L1 E) F" q6 P4 R% X
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.# V/ f# k- T' L1 k/ ?9 Y
- `( B; B' ^, [' ]
TCP/UDP 135-139 (dcom and netbios); u3 N7 a9 s- p3 Q2 G) Q( {: e8 l
These ports are commonly exploited by worm viruses:
6 f. O8 `+ u0 e! J" Y3 H135 Windows RPC
k5 ]7 @9 h H136 PROFILE Naming System (basically unused)
! T/ M% M" o' o6 g+ P$ Z8 M% {( [137-139 Windows NetBios7 l# T, q: L8 G
; U/ ~5 V% K5 `* v* ^
TCP/UDP 445 (ms-ds)7 `5 l1 o* b2 T& e) v) O
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." ]7 s2 X" w* b% o) I% L
0 \. v/ m8 i4 ~TCP/UDP 1433-1434 (ms-sql)
) ^' I4 l3 g1 b$ 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. |
|