 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
& u4 O1 l: o8 U0 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。
( g. K4 ]5 R' q; Q2 P5 C# K6 p# k; L5 {; O
Does Telus block any ports?
# T# I3 U0 Y* t" X
5 X, G* F& a) d1 K+ `% {The only packages with no blocked ports at this time are the Server packages.
+ @% D- t* p9 B3 d2 ]" a
$ f" |/ d( x/ T8 A3 ^& cThe Blocked ports currently are:3 f% r9 k' U; v, V: T0 T
; I1 c3 y5 j$ G* t2 h7 L0 q0 YTCP 21 (ftp)
0 d; w( ~0 B1 E$ h% O3 ]8 j7 D+ GCustomers 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.1 @2 C9 d( |) S3 E
8 q1 B; U: t+ {
TCP 25 (smtp)
2 n# A6 q1 M( i1 s( iCustomers 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.$ S5 w2 I- e7 L
2 v$ O& M6 \2 u- c7 K
TCP 80 (www)
0 b; ~7 |9 I2 u1 LCustomers 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.
. D# i" ]* V. t8 x A: w/ E; q- F% h u8 l
TCP 110 (pop3)
5 d' ~9 r! `/ f( X9 y1 J3 L4 YCustomers 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.( e: _0 I A! {# t7 C
" q" r+ A5 [: C$ |* g# Z
TCP 6667 (ircd)" @* m7 H7 l, _6 w- d6 v$ w" g
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
) T- z7 T ~- ^$ c, L1 q: i# G$ F. m8 ]% y1 y0 W; a o7 ^9 g
TCP/UDP 135-139 (dcom and netbios)
6 _6 R& T* d3 ~" `0 w* y: ^These ports are commonly exploited by worm viruses:
2 u: z& J7 `/ ?4 P# @135 Windows RPC4 w) o6 O! Y7 o5 T, U. f
136 PROFILE Naming System (basically unused)
2 ~, J! V Z; t4 M- {" ]137-139 Windows NetBios& S6 n$ Z4 [3 r! }
& a/ I9 e ]% y; y/ \3 ~% I, DTCP/UDP 445 (ms-ds)
[/ |8 S% u' B, Z; R [# BMicrosoft 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.
+ v" f' V5 m+ F w: D! p& G! G) T; Z" C( i8 ]% Y$ v
TCP/UDP 1433-1434 (ms-sql) |: s$ J, F+ b" C e$ ]7 d% F6 z0 ~
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. |
|