 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 8 `3 Z; v8 [1 Q4 C0 e) k
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。; m6 |( h) f' B& ~( I: q
' Y' I9 D: j1 n0 ?
Does Telus block any ports? 9 S1 c, ^. h8 U! Y" [
1 j* s1 E9 \- B0 J9 Q
The only packages with no blocked ports at this time are the Server packages.
4 P' @. R: P y, |" o# ?+ i5 V% T8 N- a/ X, v& j
The Blocked ports currently are:# f- L, H7 k* P+ Y5 K% ]
+ }5 m5 ~9 p2 a' uTCP 21 (ftp)6 E5 k4 b* C7 t9 G5 @' c
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.
0 ^& _8 v z! e8 g" V0 Y) n# `' i' L1 g
0 X5 o: u; K; R" }' Y9 x STCP 25 (smtp)
8 N) _! V5 Y0 z0 @# SCustomers 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.+ B' v2 I: @- a% U x7 s" U
% P+ @ S% P0 `- C% s J: t* ATCP 80 (www)5 l, V5 B; r' m8 l
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 e6 \( L; c$ Y5 G; r5 l; b: H/ ~5 b- G) v6 ?3 Z
TCP 110 (pop3)- M. u8 z. Y+ M4 R g$ T
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.% _/ P& @. A4 ?( R
/ o( y/ s$ d' i* |& c/ mTCP 6667 (ircd)
* E; O& F6 z6 @0 HCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
" R! r, d6 i4 `5 x7 J# `. k5 m0 P9 \. }$ W# x
TCP/UDP 135-139 (dcom and netbios)
: M% o" X7 l, BThese ports are commonly exploited by worm viruses:+ ^5 ~3 \1 K8 Q5 d4 f
135 Windows RPC
( J+ ?0 H: Z7 B4 x! z136 PROFILE Naming System (basically unused)8 q; k- Q, `9 N$ H; Q
137-139 Windows NetBios
. T1 S8 p" I; J/ C' c6 y" h5 G6 W; ?! @4 g
TCP/UDP 445 (ms-ds)1 U) f; M" e3 X2 V; X- t
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.9 O: J! B8 w" M1 ?8 }4 B
# h7 ^' n- i# @: H; N' r0 n
TCP/UDP 1433-1434 (ms-sql)
9 E" T1 o0 s+ w$ [: J& V: W @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. |
|