 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
) P3 c- f- b/ P# B5 q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。
$ b2 @4 T& E' P- r- b) W# y2 h! L4 t. N% u/ {3 W
Does Telus block any ports? & p, t3 {2 y7 o, n
, g* y0 c1 c: ^6 T' B
The only packages with no blocked ports at this time are the Server packages. : Q% T7 c5 \- ?8 p" R) H4 H
7 a0 y# @- q. D# c, \* j
The Blocked ports currently are:
& Y( @& c0 k4 f* X
( `6 q2 a* a/ [! sTCP 21 (ftp)+ j6 w r) X% @& w0 q' S
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- p, r' }1 T$ I: J; I; i6 I6 x/ y: w$ _6 C/ V, `' p7 t
TCP 25 (smtp): i8 R) ]' j7 O1 {8 k" m) r ?3 J
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.
0 ?8 M9 N) o. L0 C$ A2 _; B: }& T0 L
* e' ~# Z+ u$ u3 \) Y; {% yTCP 80 (www)% t8 d& N4 B* u7 ^
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.
6 y' z/ D5 N7 }9 g. w. Y4 H w& _* Z* c
TCP 110 (pop3)
# n) r2 s4 {$ iCustomers 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.4 A% v7 F! Y+ z! v
- q4 j; p, A# i: K8 STCP 6667 (ircd)% }" w1 ?: T5 }# Z: a2 T' ^6 @5 u
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
4 L' b* m2 U1 Y7 z+ O; |, L0 N ~* M Y! r; y: ^2 n# B
TCP/UDP 135-139 (dcom and netbios)
z) b0 D% L1 L `) G. ^These ports are commonly exploited by worm viruses:
, {" ]4 C- S* l8 Y5 I8 I135 Windows RPC
2 ?4 e+ @# s& Z/ W136 PROFILE Naming System (basically unused)
- }# d, T7 A5 b( ^137-139 Windows NetBios
* a- J7 O( e, d7 R+ g; S/ q- G7 ?1 e5 ?* t, r% g% i
TCP/UDP 445 (ms-ds)
) f1 a& j& m% ]- FMicrosoft 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.9 K, T, h: L2 \( ]
& J9 L% K; U) J0 J2 v' HTCP/UDP 1433-1434 (ms-sql)
7 b. M h: ]0 E% j* fMicrosoft 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. |
|