 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
/ j8 n! ?. q3 R9 E1 [( [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。
0 l9 N9 w z& U- M' q- f% q3 Q9 s+ O1 J& X3 e- r& c
Does Telus block any ports? 5 {3 S9 i# ]- ^& s, K; p; X
# v/ v( X( G: ]+ b+ [The only packages with no blocked ports at this time are the Server packages. ; V) b5 ?3 B) h- a# S6 U" ?
! D { {( P0 \, b2 X: H" zThe Blocked ports currently are:
8 f' I% _0 B H; E0 l8 X, G
5 u! ?* p+ q4 O4 E' F6 F7 ~1 w0 ETCP 21 (ftp)
8 D- k0 X3 w- ]( iCustomers 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.
/ c' e$ Z: D3 p( [
* E" p- M: i0 t1 KTCP 25 (smtp)) G% i# M& A$ B0 T. t
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.$ k9 Z. N9 @& y6 ^$ C
) h0 `7 c; d# D/ w2 ]TCP 80 (www)
- i* m7 \& r# OCustomers 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.
- r; f. r0 n& |! J5 ?5 M3 j8 ~" G4 q3 G5 a2 p) ]
TCP 110 (pop3)# K4 K' V+ D8 O s
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.
" \0 h6 o1 o/ v# ^' [* p5 M! j8 S
% t7 o7 `" H7 N5 i, x- J! PTCP 6667 (ircd)
$ s8 i2 P1 o- f$ p2 PCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.) Y8 b& i; I: ]
" D& ^" g5 ]& r' @, q+ nTCP/UDP 135-139 (dcom and netbios)
/ @- g" O3 N% `7 n! O; z8 }& U) hThese ports are commonly exploited by worm viruses:1 |6 z) H. c9 j. O8 G6 I0 [/ E6 K3 ~( t
135 Windows RPC3 {* v# I. R X B3 g0 r, ]0 ?
136 PROFILE Naming System (basically unused)8 N7 w D+ c- [0 M% X' |
137-139 Windows NetBios
, J2 G% K" w, g a+ r7 M7 u. e9 P$ f! G# ?& ~8 K3 U
TCP/UDP 445 (ms-ds) E7 _: y3 P5 v3 O. l( }0 W
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.
" o% q4 u6 M; C9 f7 F
/ B* R/ C9 A, dTCP/UDP 1433-1434 (ms-sql)8 \; `$ R% w. S. {7 \5 J% U w
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. |
|