 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
3 T+ R% P) L' _1 q' J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。
1 w j0 N% v0 d0 A4 D7 E; r& }7 ^% s" T4 ?' `7 Y3 i# B3 n
Does Telus block any ports? $ n& F# N1 N2 V3 P; i
2 \6 y* E* d5 ^5 p" k) \
The only packages with no blocked ports at this time are the Server packages.
& }0 M. J. W& \/ d1 t
' P6 K& U' k3 m) ~* eThe Blocked ports currently are:
: E7 k% `: e6 ]3 F! C/ l
- m* r- i/ M! ^4 y# r5 WTCP 21 (ftp)! _) R* S+ K. l" p, S2 n
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.
2 W) d( a2 \- I
* R+ P+ z8 v# x& M( s& j; GTCP 25 (smtp)
8 \6 Q# @2 I% ^/ F3 w' E0 L8 UCustomers 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.
4 ]2 W; M; Z- Z+ P& G
8 U" o H( K; |TCP 80 (www)0 o0 c) _$ U# Y/ k8 p
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.
7 u- L9 Q- O1 O/ O- `4 {
6 S$ A6 F4 S# l& N+ Q" \TCP 110 (pop3)
5 I. K5 E, }: Z$ I5 |6 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.
; a# S+ [4 i: l: e6 r
' Z3 C, s4 ~: ?/ TTCP 6667 (ircd). u: f4 {6 i5 D7 e8 I: S
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
5 |* n2 {8 m: t/ M8 _& E. A4 ^
0 a$ _' M- X6 x2 |TCP/UDP 135-139 (dcom and netbios)
- b3 d4 I" C' I, P4 pThese ports are commonly exploited by worm viruses:* o$ e! O! [' n/ x4 k
135 Windows RPC* B# Z/ w& s0 p& U
136 PROFILE Naming System (basically unused)+ E( ]5 x- n3 x8 y4 j
137-139 Windows NetBios( x; g3 }1 P5 N( f% W
* `( `5 s; v7 J5 }1 l0 G" B7 \+ sTCP/UDP 445 (ms-ds)* W L- f( |, j/ |5 D& `
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.' C+ a& h+ n- N3 B1 E! i
0 b! D/ Z$ ]# @7 e* C( nTCP/UDP 1433-1434 (ms-sql), z' f0 [. o6 o* I# V+ z* K3 l/ U. ?
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. |
|