 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, 4 I; ~3 z8 H% ]: X! i! B5 D% 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。
8 f/ y& ~. ^4 A9 ]7 j3 A& {. d& Q4 n$ @0 D5 j8 _
Does Telus block any ports?
# }' T/ w3 K$ t: q. _- i
3 X* J) e6 L. n+ ^& e$ e, k3 Y) \The only packages with no blocked ports at this time are the Server packages.
& x! v# s O) f: m; i5 {) P8 t! Y7 l1 t
The Blocked ports currently are:; r2 g& ?# h' N: g. i
, ?" g. ^- U; }TCP 21 (ftp)/ y8 x. j+ p) o) o6 c: d$ m# ~; K/ ]
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.) [" ^" h! J0 w; |
+ w% H) w e+ w5 S" k0 t- y- TTCP 25 (smtp)2 ^% p( c. S# i: e. u( v! |
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.
7 Z$ c3 l4 k- p- a
: H) M% S2 K ]' ^: ]TCP 80 (www)
# S% R5 {; A9 ZCustomers 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.
% ?% N; Q- T$ Y) u! G$ p% X! V5 y5 D s& A6 z+ p
TCP 110 (pop3)
' Q* r8 M5 b K* \% eCustomers 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.
3 [% _0 }# R/ B% W2 L$ y: m' d% Z; g, Y+ M8 v! j
TCP 6667 (ircd)
* d. _$ h4 C% U% wCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.7 t" u% L# y7 y, A
9 z+ S% ?- V% d5 k% bTCP/UDP 135-139 (dcom and netbios)
8 _( Z1 J/ C% SThese ports are commonly exploited by worm viruses:+ V* d) g) T4 \0 D
135 Windows RPC
( e% Z$ l7 k& k/ N# \1 I* w136 PROFILE Naming System (basically unused)" `; b7 a! o5 P
137-139 Windows NetBios3 U0 g) a" r/ s* A; B' i
( W4 \, i; M9 u# G, j1 [TCP/UDP 445 (ms-ds)
5 {; G% A4 g( tMicrosoft 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.0 g) O h) n8 j
! ~" W* J+ h; E y3 q
TCP/UDP 1433-1434 (ms-sql)* O0 O2 A" T5 D) p, B* }
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. |
|