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之前发过一个帖子有关Telus, Shaw 的比较， . r* J. C6 q4 J; C5 k1 D' y
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。5 F3 W& [) |. j- s; Y! l# S
, p Q! K8 V, }# v! YDoes 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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$ b9 q$ H4 [- C# fThe Blocked ports currently are:& ]' | o- ^" \5 m( ?) i$ a8 T" n9 t5 @7 G
- _/ y- H6 X/ s2 N. ITCP 21 (ftp)3 ^+ \% P2 ^- \
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.* ?( F# x) p7 P# K) i* ^* [: }8 P
9 Q) j( V3 @4 l" D& j* jTCP 25 (smtp)0 s. { V" d+ U- b- z
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.6 k- c" l3 p$ y
. o' D2 d1 L0 Z: U* |TCP 80 (www)
) \4 K8 O3 F& U( N& z( rCustomers 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.) p; _7 L# V" Q# M; W( m+ s
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TCP 110 (pop3)
, y/ {0 v3 E$ W z- nCustomers 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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0 f' W0 c v) c. f8 ETCP 6667 (ircd)
* D/ c6 ^- A; yCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.0 H) l: }! ?/ e- N" y' A. y( I
2 {" Q! \- v% Y! _6 b- d( n2 ~2 ~9 kTCP/UDP 135-139 (dcom and netbios)
# C7 m$ I+ _9 a8 @! YThese ports are commonly exploited by worm viruses:+ ]2 U, t# Z% X$ W8 @# z$ Q+ c/ K" E
135 Windows RPC. M V' |' G; l* S+ r
136 PROFILE Naming System (basically unused)0 d" n: y" @* K9 U; T1 C
137-139 Windows NetBios
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; D1 R- W: s( [8 BTCP/UDP 445 (ms-ds)% `, O3 ]. \* e+ c
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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TCP/UDP 1433-1434 (ms-sql)7 C, q8 M o, g8 d
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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