 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
0 s: U4 X6 ]5 N) b& [$ S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。
9 ^2 ^" N b3 d$ K, F: |
( u; i A5 S. x0 DDoes Telus block any ports?
9 O) D M/ x8 J" r* d9 W2 ~8 X1 h
. O& i0 l1 L6 A; \1 y1 K) E0 nThe only packages with no blocked ports at this time are the Server packages.
( l: k( ]' T( e) L1 w+ S) W" {. x7 @) I7 U5 a
The Blocked ports currently are:
- q+ R* E9 ^ S& O) V
& r5 @- v! M8 X, ~ p. sTCP 21 (ftp)
% `" `+ m3 e: ^( T; w, H4 q& t, bCustomers 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.
6 y$ x, ^$ F# o& L
1 Q2 a* ^# a' O' JTCP 25 (smtp) Y8 H) A; E* \9 l" `; M
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./ K% Z# {; D% n0 l# e
1 i* V: ]/ v: r) O3 @
TCP 80 (www)9 E2 r& k, _) {) ~& N6 p4 Y
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.' _3 C+ `& l3 i* `, I7 ~$ P+ m; {
2 e6 T6 Z4 c) A* j4 }9 m+ g9 RTCP 110 (pop3)
: Z% P1 m3 n. U( g! U. ~* Z7 |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.! z/ q5 h5 P0 r9 S5 _& L: y0 O
+ d5 V) [, }7 @8 y4 y* Y) W
TCP 6667 (ircd)
( |7 u0 Q( }: lCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.4 Z3 H* W) w3 w# ~5 L
2 g- d9 ]- u/ r
TCP/UDP 135-139 (dcom and netbios). b% `: }6 e7 J. Y
These ports are commonly exploited by worm viruses:% X* G& U* }3 D6 `* W
135 Windows RPC
v7 v% k* [( B136 PROFILE Naming System (basically unused)3 K* f( g( D' q1 A, \' ^( u3 P
137-139 Windows NetBios
* ?7 _8 _; s1 x* U/ l7 x7 y" A: ~2 w/ x; Q! ^( | d
TCP/UDP 445 (ms-ds)9 }6 f8 u z% N! p
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.- D6 J! I" \' F8 n; U
" G6 L1 i$ f; [% N2 M2 R/ H2 Z
TCP/UDP 1433-1434 (ms-sql)0 S4 f. \0 v+ r! h; V
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. |
|