 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 7 a! U/ S! i. }
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。
- s: b1 X5 q, Z1 X
, V6 y1 u2 ?# VDoes Telus block any ports? : Q9 z1 i! C4 B* F3 q) M$ W/ Q
4 E4 _, r, o3 @" \& ?, K5 a0 T
The only packages with no blocked ports at this time are the Server packages.
$ S8 ]5 G! B: x$ {# z- }# G
7 U7 N! H* M% F/ ~8 VThe Blocked ports currently are: u `: {: v) ]$ H# L& m
7 I$ B# H8 F( p) K5 |! }
TCP 21 (ftp)
/ _) N" E% ~$ M( u1 o2 s3 u* I6 @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.9 }: ?. X0 v3 M( w* r; Y
( G+ q3 s A5 e5 G$ e$ ]- ^. V+ e7 z. |TCP 25 (smtp)( W7 |+ n6 K( \
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.1 z" q$ ]% F% E3 T
" T& o. H9 `$ \7 G0 [TCP 80 (www)
5 S- ^; y+ ^" d ~& o5 mCustomers 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.
4 Q4 i/ j0 T/ s
$ }- p2 S. V D2 E$ d7 cTCP 110 (pop3)
9 _8 F) u5 B0 v! UCustomers 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.
/ F' y6 M/ V v1 ]% _2 N0 I; b0 U& }7 A( f p
TCP 6667 (ircd)0 F5 b; P' ~+ A: F/ o
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
; k' L% p' C) i5 K/ |
: H# u/ ?% L- ?* w; V. X( gTCP/UDP 135-139 (dcom and netbios)
; w$ [# s( e: Y8 T- o4 M( ~These ports are commonly exploited by worm viruses:- Y; j) J' H5 q: Z) |8 r' p
135 Windows RPC
8 n- ~' D2 H5 h5 w: f, P136 PROFILE Naming System (basically unused)2 J2 W& f4 V$ B- O9 t4 h
137-139 Windows NetBios) f1 @4 ~/ z' L0 o6 F3 ?
/ F1 x9 M# F) C7 L4 B0 }1 f. C
TCP/UDP 445 (ms-ds)
# J- S; y c: i9 _; T+ bMicrosoft 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.
' \* s/ P: o. f+ c( n* ?6 Z5 l0 a. {( k$ l7 _$ [- l& @
TCP/UDP 1433-1434 (ms-sql)# h' ?& h) K+ a8 E7 ^( h% u. p5 z
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. |
|