 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
; z' o5 z6 [' ~2 V1 W( ~* 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 j# V% y9 u7 o2 L) X
- Y, t$ v7 S2 K4 f/ nDoes Telus block any ports?
( v! z- W% ` @
6 s9 Q* f: W( g: nThe only packages with no blocked ports at this time are the Server packages.
4 o( u9 i' ~! v0 {7 W" F+ Y3 y$ C
5 K* y* B- e/ F) e% ]The Blocked ports currently are:
6 L4 S( g1 x/ Y, C
( U+ m. [& x4 R# K3 YTCP 21 (ftp)" h/ u4 Y1 _- R- m/ D- h
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.
& O Z- E$ S! l! g- R- A$ J1 i0 }& _6 ~( m. v9 R
TCP 25 (smtp)7 F% Z9 c, o6 x% m2 v4 `) i
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.- d+ K' _7 X( o& x3 {2 @
c8 }' ?# \+ w% |2 g4 b( g6 _
TCP 80 (www)
( e; `; k: M- X5 `+ i, v2 pCustomers 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.0 {' L% _; ?7 k' L) ]1 e% u1 e
, g2 U `# z- V% s
TCP 110 (pop3)4 ]2 |; r) m% X6 m$ ~' \/ g
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.# c- y1 W; D4 o( o# O0 s
M+ f( ~7 F# M" u6 h- L* w3 [$ n
TCP 6667 (ircd)5 d: L2 `# p) c+ n8 T; s+ C) _
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.' X' E$ Q6 k' ?$ Y
, p. S$ [# M8 u6 K. ^# i( DTCP/UDP 135-139 (dcom and netbios)
2 f" I/ X. p1 _6 t. Q IThese ports are commonly exploited by worm viruses: Z$ J' o+ ]" y) Q) u! z4 r9 n/ J: g
135 Windows RPC+ L6 L$ C& R) p+ Y
136 PROFILE Naming System (basically unused)1 N" V5 w. J+ d. p# q% {2 U' e
137-139 Windows NetBios( R* o! o, w# g, P# t
6 s# h2 q8 s# {4 U6 m/ D
TCP/UDP 445 (ms-ds)
; I1 n& A0 Z3 \! r( DMicrosoft 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.
4 I( W* D6 E* y( y2 k$ r3 P0 f5 v* P" o; a- M& W
TCP/UDP 1433-1434 (ms-sql)& Y2 F7 O: u/ q0 E2 @
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. |
|