 鲜花( 87)  鸡蛋( 1)
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之前发过一个帖子有关Telus, Shaw 的比较，
0 a) L/ V$ d, F* Z; O" |$ w9 ~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。
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- F/ D1 o/ z7 H5 v; hDoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages.
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, q8 T: }* H5 L& S$ J# G8 PThe Blocked ports currently are:5 E3 U. J/ E9 u& j3 r6 E
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TCP 21 (ftp)
( z; x K! L1 M6 X9 bCustomers 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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4 a# Z5 X8 Z8 P* RTCP 25 (smtp)3 x8 t$ Y9 a2 \
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.4 }) U7 k: K4 m0 J/ b4 p) F- m
4 U: d d0 ?4 h7 uTCP 80 (www)+ u# d4 D' u( {
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.
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TCP 110 (pop3)
K' l" @" B, K/ 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.
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1 H, T- X9 p$ h! o1 r4 rTCP 6667 (ircd)) z: l1 A: M% v* n: o
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)
" O1 c1 X5 N }, h/ @3 N; jThese ports are commonly exploited by worm viruses:
4 x2 z- ^+ g0 B4 ^' L135 Windows RPC
" E- X! f& U/ J+ a2 q136 PROFILE Naming System (basically unused)
4 y6 K6 ^2 m( q% i137-139 Windows NetBios/ y- x- G. b; v `4 E
+ U* [* X5 i6 W( f* n3 hTCP/UDP 445 (ms-ds), Q6 X3 u% ^4 E0 K% ^: B$ h {
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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, f0 I' B/ d3 [& G; i7 TTCP/UDP 1433-1434 (ms-sql)
0 Z7 [" Y9 o7 b0 S9 E$ }6 M5 L+ r/ ]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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