 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 8 k+ I5 M" l: 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。- h, G* L1 ?: B% W
& x# j5 K# h: V) U: v4 lDoes Telus block any ports? . O7 C8 F9 `5 e
. o% k4 `* X' L7 U4 N" R& ]
The only packages with no blocked ports at this time are the Server packages. 7 v+ o ]4 I1 q, Y6 e
# \6 N$ e& z6 g$ RThe Blocked ports currently are: ]# p! W) }# w# ~
6 T/ w+ |: N3 B2 Q; `9 c9 ]8 ZTCP 21 (ftp)8 U" x9 a! g0 {) ]
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 D5 O/ G- k8 x) f
% D7 h! w2 b' aTCP 25 (smtp)
. H4 P! ?! n1 V: |4 h ECustomers 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 k) K: P( }0 B2 n% [: _; [# j
3 v8 ^1 T& w }( s! X: GTCP 80 (www)
% ?/ {. c4 C/ [1 j# vCustomers 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.
$ k* x" O( f, P. V1 ~8 [% q: T5 Z3 i5 z; \/ l
TCP 110 (pop3). ^1 @: C* E: l: l3 J
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.
4 s. t6 _3 t& M3 o7 V0 D0 u/ N: o7 X! @
TCP 6667 (ircd)
m$ O( P$ r% Q) b" H0 b8 B5 UCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
+ J& H1 v. {3 Y! t
$ F6 G p0 Z8 }' iTCP/UDP 135-139 (dcom and netbios)
1 J2 A2 w! T, O9 IThese ports are commonly exploited by worm viruses:. { s8 S# {/ h* h: P O6 S, S
135 Windows RPC
) H5 ]- {4 r+ V+ Z136 PROFILE Naming System (basically unused)) c s( C: S: w- H
137-139 Windows NetBios3 a0 B5 w/ A( x6 a) D9 R; {
# H" V! N# E" d/ m8 y4 R& P
TCP/UDP 445 (ms-ds)
( j$ q- v* r5 e) e5 s7 CMicrosoft 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.- w+ y$ ]" x! M* }7 ^, U
5 @1 _- w# ~& j A+ ATCP/UDP 1433-1434 (ms-sql)
: {3 ?# W9 {; n" \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. |
|