 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, . G$ Z2 P* ]4 Z/ B5 Z
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。
8 d! T4 r3 [) @8 B4 y7 Y
/ @ i/ V0 j% ^4 nDoes Telus block any ports?
6 Y2 Y( m+ G) y9 o8 Y7 w* A5 h8 O- F* X. e
The only packages with no blocked ports at this time are the Server packages. 5 w* `; V$ E, d2 Q/ I9 \' t# U7 A
8 X9 ^5 `9 m3 {. {: v- EThe Blocked ports currently are:& j; C1 G1 ?1 Q/ N1 |0 G3 j
3 v }4 J% d& z' Z! b$ x8 [TCP 21 (ftp): F# \6 d$ V: `, @4 a& W' f# a4 p
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.! R$ l3 \9 F. i1 z9 k
0 G4 O9 H" P; O' |% ?, ` Q5 @
TCP 25 (smtp)
! |3 ~( I1 i' Z6 W8 w0 q9 A) dCustomers 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.( [. ^+ ], K$ N$ @
9 A( z7 p) S8 ^3 K! e# STCP 80 (www)
9 R2 G- }; n8 L4 \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.
$ e( o) t6 l3 z( ^0 x; L+ a( |- s$ u# @( l
TCP 110 (pop3)' g4 m; W; @) Z6 k
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.- q! H% P6 Q+ C2 D6 J
0 c( L& A4 t5 m" Q$ ], t. aTCP 6667 (ircd)* v+ }/ D5 q n. Y/ T2 ?" Q
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.: C1 M7 n3 f0 o7 F- D! l* A
6 s& \- k h; k% l- ?3 d9 n4 V
TCP/UDP 135-139 (dcom and netbios)
; w" a7 X& E6 Z, RThese ports are commonly exploited by worm viruses:
$ |0 j( Q7 c& `$ @- h" l2 ^135 Windows RPC+ S/ V8 V! ^2 V! i% V; s4 A
136 PROFILE Naming System (basically unused)
" z% y, t/ d, }* _# M137-139 Windows NetBios- r- M! u7 U1 b- H V
; g+ `5 o6 d* ^; b7 Q
TCP/UDP 445 (ms-ds)
% T# l- K5 ~3 yMicrosoft 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 C& @ O% v& C% L9 u' {4 K \+ u& K2 W
TCP/UDP 1433-1434 (ms-sql)8 [, N1 R' N$ Q( @* ^1 `1 D. ` {, W; L
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. |
|