 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, : v3 W1 }( ~- l% U% Z- 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。
6 _8 ]# N, n/ M+ _: E: G7 K% [! E1 P O: I
Does Telus block any ports?
, \7 A7 m }0 a- w8 q5 `7 ^/ f4 y1 J
The only packages with no blocked ports at this time are the Server packages.
9 K( X- x$ n- X2 V" \9 n
+ m" D- I2 ]& G" g& d" R* pThe Blocked ports currently are:4 d# m; H/ _+ b! s5 K/ M
3 Y% m# f# c2 h) O( }; |6 b1 W0 c! iTCP 21 (ftp)! t6 S8 {/ q3 d. K& W0 b
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.+ D' L4 S6 n7 O, f; m% \
) E% Q# e3 s N. Y, c v4 ATCP 25 (smtp)
2 G) P6 u* h! @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.9 I- ?( W& y; `( E7 v
9 \4 N3 o" [4 J% }6 w9 G# v# e; qTCP 80 (www)
0 T0 O) ?9 C6 X% }: r% q0 v: KCustomers 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.! l: L4 N+ t: N3 {( Q. b- [
* K K4 H/ q. ~, s g5 \1 I7 m
TCP 110 (pop3)! s# {8 Y: i+ b7 f
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.& ~' x7 h8 Y1 b% w" d
`% h6 ^3 y, V# |' D! e
TCP 6667 (ircd)
! u1 v) |1 J% L) h0 qCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
, @' ]* E0 S% d/ C6 @, f8 y" h' [' C7 ]( S
TCP/UDP 135-139 (dcom and netbios)3 ?! I- `" d" t$ B/ w/ o; f
These ports are commonly exploited by worm viruses:2 L& o$ \7 j3 {8 j1 W$ K( C6 _# s
135 Windows RPC0 J {9 K; B- @( m
136 PROFILE Naming System (basically unused)
( m* d8 i4 u! n% q4 n1 s% b137-139 Windows NetBios
% A9 ^# d0 R( d' K0 C, S) G; Q! W1 P' @
TCP/UDP 445 (ms-ds)5 w5 X! ]& A `5 Y" I+ E
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.
4 H" W/ C: l0 R( D. k
0 c$ i: c0 v7 {/ B0 B1 rTCP/UDP 1433-1434 (ms-sql)+ r# D1 q+ k D* [& m
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. |
|