 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 4 R ~: J0 b, j1 Y s7 B& g
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。
, {6 U' N7 z4 _5 G9 ^& |
( H x$ ^: H" {Does Telus block any ports? 1 I" n5 I" x. r* Q" K" E+ n
8 |1 Y1 B' ~; n b1 f
The only packages with no blocked ports at this time are the Server packages.
5 Z2 p' p! I0 \- `# ~4 P& g4 G2 A5 I, n- i' z d- j( B r" p
The Blocked ports currently are:
5 S% ^9 k8 m& B1 _. a) Z, P; f3 i4 F0 @$ f: J+ g% ?
TCP 21 (ftp) A* v% w. E8 \2 W( D+ V
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.
8 n: n8 A8 E4 C4 p6 ]+ i8 _. [* ?$ k w$ E0 x1 k+ r. B
TCP 25 (smtp)
$ C' ~+ i( Y% G$ G& yCustomers 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.
' V" c; \4 M, e ]* _
# k. x, \, V6 X; YTCP 80 (www)
1 {, ^1 F7 A8 n |1 {4 K. ICustomers 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.- j7 E& X) C4 `* V2 |2 q
- P7 n- N2 T6 T7 u* {TCP 110 (pop3)+ E" z% B/ R9 G4 o* ^! X( J. A5 ]
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.2 p3 P5 ?, D+ j. a
3 u9 X: A. H- b4 Q) T4 ^0 K
TCP 6667 (ircd)
3 B% n7 b5 l- w1 mCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
/ ? {, ^* Z4 |( @( a3 M' l; s# [9 H9 B) [6 v8 o
TCP/UDP 135-139 (dcom and netbios)( H6 ?- z( ~. [. E
These ports are commonly exploited by worm viruses:8 j0 _0 J) q: G, v
135 Windows RPC/ H& T5 V# i+ P1 j1 U/ X) J
136 PROFILE Naming System (basically unused)
l+ Y9 z( d4 c) C137-139 Windows NetBios
# e+ X/ M- f, n" l" z6 a& N% b% J @' W3 I$ M" A
TCP/UDP 445 (ms-ds): k, g6 D$ `3 r7 G, I9 M
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.' J4 f( d# T2 V/ L" u- F; j- E Q
8 b( E% N) C; \8 kTCP/UDP 1433-1434 (ms-sql)# b8 F3 u7 l) 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. |
|