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之前发过一个帖子有关Telus, Shaw 的比较,
& U _- I/ C" C5 c5 A, y) O: B' c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。( U" J4 `* E3 L/ J6 F* }
+ }; g3 w: i% [ b R' K0 ?7 `Does Telus block any ports? 6 H) @" M! g' I. S/ s
& Q& k! W V6 N8 s& N0 {The only packages with no blocked ports at this time are the Server packages. % q8 C+ Q1 D% u6 O* W+ S
B1 Z0 w6 G& j6 sThe Blocked ports currently are:
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" Q6 R" U" t" q/ f' ^TCP 21 (ftp)7 Y' c; R! k7 y& h" K$ _ Z
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.
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; {( T( r3 p/ F" [TCP 25 (smtp)
! c$ l P7 `3 a. y! ]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.
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TCP 80 (www)1 Y; ?6 p6 {$ x7 r, ~ F
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.) \# {* a7 A( r$ s6 q+ x: f9 \
8 X; ]7 v8 }+ X* j3 ETCP 110 (pop3)- O5 Q8 w! a) P2 S$ P
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.; l. i4 ]% q% ~
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TCP 6667 (ircd)" a; z" X- h$ K9 H& [4 n- ?
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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TCP/UDP 135-139 (dcom and netbios). O( G ^( c" T: G8 I5 e7 P
These ports are commonly exploited by worm viruses:
$ J( ^7 i% V2 G# U$ j3 J135 Windows RPC
% `0 v( d! A2 \. e136 PROFILE Naming System (basically unused)
9 t/ b; Y: g0 K# {9 O& C137-139 Windows NetBios' n8 b0 L$ F$ G6 P
: k1 T# p1 f- tTCP/UDP 445 (ms-ds)" E2 z) m5 n5 Y! p
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.
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+ z6 ~9 @3 x9 ]0 }+ cTCP/UDP 1433-1434 (ms-sql)1 S$ C9 k3 z5 l$ [
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. |
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