 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, ; k7 H( e& M+ N" K
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。, O3 Z$ Z( g1 \7 r9 |9 j
- `$ F, U* Q) D( P: g; |& jDoes Telus block any ports? X2 G. k8 }7 Y. C$ q, ]/ D2 L8 Q
, Q4 ]: v# `1 D" R, B+ ?
The only packages with no blocked ports at this time are the Server packages.
d) V' h9 k5 o1 V2 c2 n3 H4 D0 E+ ^; ?# _) Y4 D1 ?6 }. I
The Blocked ports currently are:( Q& f) y r, {* W( L* n/ C
& s, g' f w9 e* `, c9 E
TCP 21 (ftp)
: n) m; ^: @" y- z4 q3 ]Customers 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.
) f7 C1 h( ?( R, N, F
/ F4 ^) _: G. q4 XTCP 25 (smtp)! a s5 S! E+ I; N: I) l+ g% M
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.( }5 H. X2 B1 U8 Z- K: ?
t; F* m9 V9 U- W/ L
TCP 80 (www)1 v% g( `5 {: |, V5 M. X
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.
1 i* T# \2 s: _* h
$ g$ v, V" J- Z; I/ |6 H+ VTCP 110 (pop3)0 @+ E- Q1 f8 \& M) r1 z) H
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.
, U; M# e# X7 n" V% o2 L# }$ l1 _+ a, Y* {8 D4 N- d
TCP 6667 (ircd)- f% I/ E# A& k9 x
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
+ p: m5 z+ ?( F, ?1 _8 N! m8 t ] _0 T0 O4 ]6 X, b% o! T2 i' E
TCP/UDP 135-139 (dcom and netbios)
& W& d; q! t9 `0 c+ p* G) v) l& DThese ports are commonly exploited by worm viruses:
- k9 u) I9 F: s/ }4 {9 K135 Windows RPC5 h5 M* }) n( k K
136 PROFILE Naming System (basically unused)0 o3 X# g' Y; _+ L4 I B
137-139 Windows NetBios7 V% x, y% D. {1 H6 y( e9 a6 W% _
. f) p3 F( F) ]0 D8 o7 GTCP/UDP 445 (ms-ds)
$ ]1 m$ b$ @- o1 a$ y: U7 @; \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.& M5 J- ^3 G% G& |% ^5 S
4 ]' s; k& @- h+ T6 w( U* k
TCP/UDP 1433-1434 (ms-sql)
) n: L; }+ M( b' }% N7 P% h" ^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. |
|