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之前发过一个帖子有关Telus, Shaw 的比较，
( B" o3 ~/ d/ B( Z; W$ g& q7 m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。7 }( H) p4 J- [
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Does Telus block any ports? ) I @% c, b* A! y4 J( z% i1 V2 t
6 u6 u& A) g; v8 Q0 m3 ]The only packages with no blocked ports at this time are the Server packages. ! ^: a7 M( h+ g* d: ?% `% K5 n0 E
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The Blocked ports currently are:/ l7 c$ G+ R% g: D8 J
: c# k; j" v: `0 y- kTCP 21 (ftp)' s! I8 `: F4 |! U) M1 P
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.' ~( `9 g# M) r, V2 j+ T
9 ?( _) ~4 q3 ^( O6 d) {+ K! RTCP 25 (smtp)
: F2 J% L& H7 x) R, R4 n' |. f nCustomers 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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* C' H3 H& `- ITCP 80 (www)
' _3 |- l& U2 R+ ] S3 FCustomers 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.6 ^# L% P( T$ u/ z+ D3 D5 t* {
* v9 m4 t8 R$ n# x* I$ aTCP 110 (pop3)8 G e9 h. ]1 T2 p3 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.
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& d- C7 k- v7 O$ z9 \3 ~6 ]3 MTCP 6667 (ircd)1 E4 \1 v0 q( e& q
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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1 B) _- K& n( C' q. _8 VTCP/UDP 135-139 (dcom and netbios)
, f# @0 R4 `+ ^! wThese ports are commonly exploited by worm viruses:
- a F3 ?% U: h135 Windows RPC6 ]1 k/ L+ m2 q* \6 v& C
136 PROFILE Naming System (basically unused)
: l2 ^0 e) j, I2 y137-139 Windows NetBios
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F+ `1 E6 q# K& m! @TCP/UDP 445 (ms-ds)
2 Y; [- F. |3 ?7 u* z( iMicrosoft 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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4 m# B0 \$ Z9 H* z* ^; ]& lTCP/UDP 1433-1434 (ms-sql): `3 }# o( z# {. o
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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狗仔卡
发表于 2009-11-7 17:58
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