 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
1 `+ k. b6 `5 d: G) t! x9 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。
" _4 |3 w4 x- ?4 G
/ P. ]& ~9 b- x. s( j" ?Does Telus block any ports?
6 [$ E& t& n% w/ n* Z( f$ ~2 V! ~7 H, {% E
The only packages with no blocked ports at this time are the Server packages. ; L( q7 }, t8 g: o6 q" j) e \
6 B4 S# N! q3 t$ V$ H! {The Blocked ports currently are:
& i. `% C) |" \8 }- i# y
P" J3 j$ S$ E7 j* h6 ~TCP 21 (ftp)
% o, c! O$ i" M! p5 x* P$ W) z9 `5 jCustomers 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.
( R- k/ I0 s. C( Z' J% ]$ W' L+ u5 S& G! X, {/ |) q
TCP 25 (smtp)0 n5 P8 \! Z2 x' J
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.8 p; X* O+ d0 S
5 z$ B9 Z M* W1 J: O1 Z" M3 t3 E
TCP 80 (www)
/ S' `% m% [! JCustomers 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.2 X; l! n$ t" \0 C: F. s
# y' f, L0 Q! @* P" [$ U3 Y
TCP 110 (pop3)8 `3 O3 O- r4 Y, M5 ^3 j
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.+ {; h4 e0 R0 ?3 a( S4 l' A/ r
+ F8 ~! X/ V, ~5 h. G3 m: fTCP 6667 (ircd)
" n( P( e" v0 b BCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
7 ?7 z6 P' d* f
+ F, Z' o J/ e/ Z# m1 P: kTCP/UDP 135-139 (dcom and netbios)
! d% H' O% P# y7 B* D/ {These ports are commonly exploited by worm viruses:
- D4 }4 C' Q9 ~3 _% h) u135 Windows RPC, I4 i( D3 J7 Y+ o' S1 A- }
136 PROFILE Naming System (basically unused)
C! }7 o3 o4 J" u* [137-139 Windows NetBios' N' u2 E j% | i6 u% |! {# R
: M8 q3 q6 P" MTCP/UDP 445 (ms-ds)$ O" p( x# N8 Q: W7 I
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.0 f2 d; u$ j9 P5 p$ m6 @
: l2 Q" X( A3 b1 L+ E" y* Y kTCP/UDP 1433-1434 (ms-sql)" l8 p0 e' C& x( ]* | x
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. |
|