 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 6 F9 O' [& H% m7 y/ V/ X
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。
' T9 j9 \7 v0 p* v. W7 Q1 c; b& r5 t
5 u$ ]3 F) ^' m |& xDoes Telus block any ports?
7 D7 f& V* m* ~1 F$ m/ C3 R7 G
9 z9 h0 t+ h7 L2 G- s" JThe only packages with no blocked ports at this time are the Server packages.
2 N- s' e1 a0 `9 A! f! R- W O/ A( K" `3 M$ m
The Blocked ports currently are:3 T1 N( U" v9 h; G
* U6 R+ _4 F! Z$ U5 x9 _: s' ?TCP 21 (ftp)
" R9 O9 _1 s9 `) z; s3 Z! jCustomers 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.- b4 s& N0 f. J- {+ Y
; V% z9 o9 L; l: E- `TCP 25 (smtp)
6 u1 H2 k; y2 W0 e# T' U/ ^0 ICustomers 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: ^' w0 g, |0 y# x! @
6 P+ B. H2 I, U
TCP 80 (www)* n. Q. P, f. I3 J) }
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.# S9 y" ]/ m" w4 H
* E' R( I4 G* QTCP 110 (pop3)
9 U, O7 r- p0 o7 m' _5 {4 f% xCustomers 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.
% R# g* m! Z w1 @* K b, M9 d+ I1 k
TCP 6667 (ircd)
; d* O* i8 J" W# z; {Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.+ z& a; e) [; M+ H6 ?
7 A) j4 {6 P* `1 n/ n0 C' B0 e! }$ ~- O: p
TCP/UDP 135-139 (dcom and netbios)
. u4 K! R! g# I, p4 OThese ports are commonly exploited by worm viruses:; v; }; _' i; k& i2 H
135 Windows RPC% f" m; T% L ^6 o" @* x2 n
136 PROFILE Naming System (basically unused)' _* k4 X9 P1 L2 [+ M
137-139 Windows NetBios
. h7 {# z% r: _2 S8 F* A! n' m+ Q# M# B5 J8 k. n9 y+ d2 A
TCP/UDP 445 (ms-ds)( a- a9 X/ l9 A) ]" R
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 E: \1 N4 m% Z' s; Z9 X
7 ^9 _$ [7 @/ k3 o- }( n- V1 [TCP/UDP 1433-1434 (ms-sql)
3 p! A/ Y g4 H# z h& G" c" lMicrosoft 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. |
|