 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, . _8 W0 w% u' ^3 m( }
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 o) q! [+ W. ^' m, W" Z8 ?
! @8 R7 ?; e( }: ^% [3 p' _
Does Telus block any ports? ) z" a9 y, ?3 E+ V& n
) }- L- P) f8 Y/ AThe only packages with no blocked ports at this time are the Server packages.
% k; k# |2 l8 _
1 {5 M# O' D) e( l: QThe Blocked ports currently are:2 {3 c$ n' w! r8 J8 y8 D9 V0 {) b
) p( R4 _% ?9 ]
TCP 21 (ftp)
+ g2 u- e' N6 e* |& G8 A% [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.. V/ J7 X+ L" Z& ?; V' m }4 ?
4 I# B _1 n6 R* }
TCP 25 (smtp)5 N( i% N9 d# V5 Q* k; f
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.! U, A; k: W5 L- w% f- C
$ g0 D. p0 u6 o# ^7 l" k* D
TCP 80 (www)) M5 g; c# g, p# e: K2 L2 Q
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./ `( @5 H& j6 M O4 O" x4 Y
, t" B+ R8 t+ r+ u% _# ~; W) S
TCP 110 (pop3)6 O' S- n* k2 y Q( e
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.9 _* l! b; I* V. W% e
, W4 \. T* {. H3 OTCP 6667 (ircd)5 E8 Y$ A& d2 Z- V5 |
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
0 W* H7 l0 q, l/ A+ B8 T( S- i6 z9 K& P; n, g# i: a9 A' j0 i7 e
TCP/UDP 135-139 (dcom and netbios)
8 A" \ B3 E# VThese ports are commonly exploited by worm viruses:
2 H4 Z+ D# t! }- C& b& E2 }" s* l d135 Windows RPC
; n. Z7 G* S! ~/ L+ `+ P136 PROFILE Naming System (basically unused)/ T8 }& h9 N% d8 c' L
137-139 Windows NetBios& _$ O8 A: \' w
0 g% o: P5 i8 l% w: R7 U
TCP/UDP 445 (ms-ds)
& o2 U9 P1 z8 Y) y8 HMicrosoft 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% K5 x' |
) v: L1 ?; G" x/ _1 ITCP/UDP 1433-1434 (ms-sql)
7 Y5 o( U( }# [9 X( O: AMicrosoft 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. |
|